CN203589772U - Double-USB charging circuit and charger - Google Patents
Double-USB charging circuit and charger Download PDFInfo
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- CN203589772U CN203589772U CN201320669795.6U CN201320669795U CN203589772U CN 203589772 U CN203589772 U CN 203589772U CN 201320669795 U CN201320669795 U CN 201320669795U CN 203589772 U CN203589772 U CN 203589772U
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Abstract
An embodiment of the utility model discloses a double-USB charging circuit and a charger. The charging circuit comprises an AC rectifier and filter circuit, a first charging subcircuit and a second charging subcircuit; the first charging subcircuit and the second charging subcircuit are connected with the AC rectifier and filter circuit respectively, and an anode of the first charging subcircuit and an anode of the second charging subcircuit are connected with each other; a first voltage-transformation circuit, a first DC rectifier and filter circuit and a first USB output circuit are successively connected in series to form the first charging subcircuit; a second voltage-transformation circuit, a second DC rectifier and filter circuit and a second USB output circuit are successively connected in series to form the second charging subcircuit; and an output mode switching circuit for switching power supply modes is connected between the first USB output circuit and the second USB output circuit. When two USB interfaces of the embodiment are used simultaneously, output currents of the two USB interface are both 1A; when the first USB output circuit is used alone, the output current is 2A; when the second USB output circuit is used alone, the output current is 1A; and a variety of flexible switching charging modes are provided, so different needs of users are satisfied.
Description
Technical field
The utility model relates to power technique fields, relates in particular to a kind of double-H groove weld SB charging circuit and charger.
Background technology
Two USB outputs of existing double-H groove weld SB charging circuit and charger are and meet 1A or 2A, with the charging of common portable electronic products or apple portable electronic products, need, and its current mode output is single, can not meet the needs of the multiple charge mode of user.
Utility model content
The utility model embodiment technical problem to be solved is, a kind of double-H groove weld SB charging circuit and charger of the charge mode with multiple flexible switching is provided.
In order to solve the problems of the technologies described above, the utility model embodiment has proposed a kind of double-H groove weld SB charging circuit, comprise AC current rectifying and wave filtering circuit, and be connected to described AC current rectifying and wave filtering circuit and anodal interconnective the first charging paths and the second charging paths, the first charging paths is by the first transforming circuit, the one DC current rectifying and wave filtering circuit and a USB output circuit are in series successively, the second charging paths is by the second transforming circuit, the 2nd DC current rectifying and wave filtering circuit and the 2nd USB output circuit are in series successively, between the one USB output circuit and the 2nd USB output circuit, be connected with the output mode commutation circuit for switching powering mode.Thereby, by described output mode commutation circuit, met the needs of the multiple charged state of user.
Further, described output mode commutation circuit comprises diode D1, and the positive pole of diode D1 is connected in the negative pole of a USB output circuit, and the negative pole of the negative pole of diode D1 and the 2nd USB output circuit altogether.Particularly, when two USB interface all access charging terminal, diode D1 cut-off, the power supply of working respectively of two charging paths, two USB interface are all exported 1A; When the USB interface CN1 of the one USB output circuit connects charging terminal, diode D1 cut-off, due to two charging paths positive poles interconnect and described negative pole altogether, the second charging paths is also powered for USB interface CN1, therefore be output as 2A; When the USB interface CN1 ' of the 2nd USB output circuit connects charging terminal, diode D1 conducting also drags down the first charging paths output voltage so that cannot be the second charging paths power supply, and the second charging paths USB interface CN1 ' exports 1A.
Further, a described USB output circuit comprises that USB interface CN1, resistance R 1 are to resistance R 5;
Wherein, the pin one of USB interface CN1 is anodal, and is connected in resistance R 1 to the common port of resistance R 3, an anodal and DC current rectifying and wave filtering circuit of the 2nd USB output circuit; Pin two is connected in the common port of resistance R 2 and resistance R 4; Pin 3 is connected in the common port of resistance R 3 and resistance R 5; Pin 4 is negative pole and ground connection, is also connected in the positive pole of diode D1, the common port of resistance R 1, resistance R 4 and resistance R 5 and a DC current rectifying and wave filtering circuit.
Further, a described DC current rectifying and wave filtering circuit comprises resistance R 6, capacitor C 1, electrochemical capacitor CE1, electrochemical capacitor CE2, inductance L 1 and diode D2;
Wherein, one end of resistance R 6 is connected in the positive pole of the first transforming circuit and diode D2, and the other end is connected in one end of capacitor C 1; The other end of capacitor C 1 is connected in negative pole, the positive pole of electrochemical capacitor CE1 and one end of inductance L 1 of diode D2, the other end of inductance L 1 is connected in the positive pole, resistance R 1 of electrochemical capacitor CE2 to common port, the positive pole of the 2nd USB output circuit and the pin one of USB interface CN1 of resistance R 3, the negative pole of electrochemical capacitor CE1 and electrochemical capacitor CE2 interconnects and is connected in the first transforming circuit, is also connected in the common port of resistance R 1, resistance R 4 and resistance R 5 and the pin 4 of USB interface CN1.
Further, described the first transforming circuit comprises that chip U1, transformer T, resistance R 7 are to resistance R 13, capacitor C 2, capacitor C 3, electrochemical capacitor CE3, diode D3 and diode D4;
Wherein, the terminals A of transformer T is connected in the first common port of resistance R 7, resistance R 8 and capacitor C 2 and is connected in AC current rectifying and wave filtering circuit, the second common port of resistance R 7, resistance R 8 and capacitor C 2 is connected in the negative pole of diode D3, and the positive pole of diode D3 is connected in one end of resistance R 9; The terminals B of transformer T is connected in the other end of resistance R 9 and the pin one of chip U1; The terminals C of transformer T is connected in common port of resistance R 10, resistance R 11 and the positive pole of diode D4; The terminals D of transformer T is connected in the pin two of chip U1 to pin 5, is also connected in one end of capacitor C 3, resistance R 12 and the negative pole of electrochemical capacitor CE3 simultaneously; The pin 6 of chip U1 is connected in another common port of resistance R 10, resistance R 11 and the other end of resistance R 12; The pin 7 of chip U1 is connected in the other end of capacitor C 3 and one end of resistance R 13, and the other end of resistance R 13 is connected in the positive pole of electrochemical capacitor CE3 and the negative pole of diode D4; The terminals E of transformer T is connected in common port, the positive pole of diode D1 and pin 4 and the ground connection of USB interface CN1 of negative pole, resistance R 1, resistance R 4 and the resistance R 5 of electrochemical capacitor CE1 and electrochemical capacitor CE2; The terminals F of transformer T is connected in one end of resistance R 6 and the positive pole of diode D2.
Further, described AC current rectifying and wave filtering circuit comprises lightning arrester F1, piezo-resistance RV1, rectifier bridge BD1, electrochemical capacitor CE4, electrochemical capacitor CE5 and magnet exciting coil LF1;
Wherein, after the pin one of rectifier bridge BD1 series connection lightning arrester F1, be connected in AC input L; Pin two is connected in AC input N, and pin one and pin two are connected respectively the two ends of piezo-resistance RV1; Pin 3 is connected in the terminals 1 of magnet exciting coil LF1 and the negative pole of electrochemical capacitor CE4; Pin 4 is connected in the terminals 2 of magnet exciting coil LF1 and the positive pole of electrochemical capacitor CE5; The terminals 3 of magnet exciting coil LF1 are connected in the first common port of terminals A, resistance R 7, resistance R 8 and the capacitor C 2 of positive pole, the second transforming circuit, the transformer T of electrochemical capacitor CE5; Terminals 4 are connected in negative pole and the second transforming circuit of electrochemical capacitor CE5.
Further, described the second transforming circuit comprises that chip U1 ', transformer T ', resistance R 7 ' are to resistance R 13 ', capacitor C 2 ', capacitor C 3 ', electrochemical capacitor CE3 ', diode D3 ' and diode D4 ';
Wherein, the terminals A ' of transformer T ' is connected in the first common port of resistance R 7 ', resistance R 8 ' and capacitor C 2 ' and is connected in the terminals 3 of magnet exciting coil LF1 and the positive pole of electrochemical capacitor CE5, the second common port of resistance R 7 ', resistance R 8 ' and capacitor C 2 ' is connected in the negative pole of diode D3 ', and the positive pole of diode D3 ' is connected in one end of resistance R 9 '; The terminals B ' of transformer T ' is connected in the other end of resistance R 9 ' and the pin one of chip U1 ' '; The terminals C ' of transformer T ' is connected in common port of resistance R 10 ', resistance R 11 ' and the positive pole of diode D4 '; The terminals D ' of transformer T ' is connected in the pin two of chip U1 ' ' to pin 5 ', be also connected in one end of capacitor C 3 ', resistance R 12 ' and the negative pole of electrochemical capacitor CE3 ' simultaneously; The pin 6 ' of chip U1 ' is connected in another common port of resistance R 10 ', resistance R 11 ' and the other end of resistance R 12 '; The pin 7 ' of chip U1 ' is connected in the other end of capacitor C 3 ' and one end of resistance R 13 ', and the other end of resistance R 13 ' is connected in the positive pole of electrochemical capacitor CE3 ' and the negative pole of diode D4 '; The terminals E ' of transformer T ' and terminals F ' are all connected in the 2nd DC current rectifying and wave filtering circuit.
Further, described the 2nd DC current rectifying and wave filtering circuit comprises resistance R 6 ', capacitor C 1 ', electrochemical capacitor CE1 ', electrochemical capacitor CE2 ', inductance L 1 ' and diode D2 ';
Wherein, one end of resistance R 6 ' is connected in the terminals F ' of transformer T ' and the positive pole of diode D2 ', and the other end is connected in one end of capacitor C 1 '; The other end of capacitor C 1 ' is connected in negative pole, the positive pole of electrochemical capacitor CE1 ' and one end of inductance L 1 ' of diode D2 ', the other end of inductance L 1 ' is connected in the positive pole, the 2nd USB output circuit, resistance R 1 of positive pole, a USB output circuit of electrochemical capacitor CE2 ' to the common port of resistance R 3, pin one, the other end of inductance L 1 and the positive pole of electrochemical capacitor CE2 of USB interface CN1, and the negative pole of electrochemical capacitor CE1 ' and electrochemical capacitor CE2 ' interconnects and be connected in terminals E ' and the 2nd USB output circuit of transformer T '.
Further, described the 2nd USB output circuit comprises that USB interface CN1 ', voltage stabilizing didoe ZD1, resistance R 1 ' are to resistance R 5 ';
Wherein, the pin one of USB interface CN1 ' ' be anodal, and be connected in resistance R 1 ' to the common port of resistance R 3 ', negative pole, the other end of inductance L 1 ' and the positive pole of electrochemical capacitor CE2 ' of voltage stabilizing didoe ZD1, be also connected in resistance R 1 to the common port of resistance R 3, pin one, the other end of inductance L 1 and the positive pole of electrochemical capacitor CE2 of USB interface CN1; Pin two ' be connected in the common port of resistance R 2 ' and resistance R 4 '; Pin 3 ' is connected in the common port of resistance R 3 ' and resistance R 5 '; Pin 4 ' is negative pole and ground connection, and is connected in the common port of resistance R 1 ', resistance R 4 ' and resistance R 5 ', the negative pole of positive pole, electrochemical capacitor CE1 ' and electrochemical capacitor CE2 ' and the terminals E ' of transformer T ' of voltage stabilizing didoe ZD1.
Correspondingly, the utility model embodiment also provides a kind of double-H groove weld SB charger, and described charger comprises housing, the plug of being located at respectively housing two ends and double-USB interface, is provided with circuit board in housing, is integrated with double-H groove weld SB charging circuit as above on circuit board.
The double-H groove weld SB charging circuit of the utility model embodiment and the beneficial effect of charger are: by connect the output mode commutation circuit for switching powering mode between a USB output circuit and the 2nd USB output circuit, thereby when being used simultaneously, two USB interface all export 1A, when using separately, exports by the one USB output circuit 2A, when the 2nd USB output circuit uses separately, export 1A, double-H groove weld SB charging circuit and charger have the charge mode of multiple flexible switching to meet user's different demands.
Accompanying drawing explanation
Fig. 1 is the overall schematic of the double-H groove weld SB charger of the utility model embodiment.
Fig. 2 is the structural representation of the double-H groove weld SB charging circuit of the utility model embodiment.
Fig. 3 is the circuit diagram of the double-H groove weld SB charging circuit of the utility model embodiment.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can mutually combine, and below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1, the utility model embodiment provides a kind of double-H groove weld SB charger, and described charger comprises housing 10, is located at respectively plug 11 and the double-USB interface 12 at housing two ends, is provided with circuit board in housing, is integrated with double-H groove weld SB charging circuit on circuit board.When two USB interface of double-H groove weld SB charger are all used, all export 1A, when the USB interface of sign " MAX 5V2.1A " is used separately, export 2A, when the USB interface of sign " OUT 5V1A " is used separately, export 1A, thereby met multiple charge mode demand.
Please also refer to Fig. 2, shown in double-H groove weld SB charging circuit, comprise AC current rectifying and wave filtering circuit, and be connected to described AC current rectifying and wave filtering circuit and anodal interconnective the first charging paths and the second charging paths, the first charging paths is by the first transforming circuit, the one DC current rectifying and wave filtering circuit and a USB output circuit are in series successively, the second charging paths is by the second transforming circuit, the 2nd DC current rectifying and wave filtering circuit and the 2nd USB output circuit are in series successively, between the one USB output circuit and the 2nd USB output circuit, be connected with the output mode commutation circuit for switching powering mode.Thereby, by described output mode commutation circuit, met the needs of the multiple charged state of user.
Please also refer to Fig. 3, preferably, described output mode commutation circuit comprises diode D1, and the positive pole of diode D1 is connected in the negative pole of a USB output circuit, and the negative pole of the negative pole of diode D1 and the 2nd USB output circuit altogether.Particularly, when two USB interface all access charging terminal, diode D1 cut-off, the power supply of working respectively of two charging paths, two USB interface are all exported 1A; When the USB interface CN1 of the one USB output circuit connects charging terminal, diode D1 cut-off, due to two charging paths positive poles interconnect and described negative pole altogether, the second charging paths is also powered for USB interface CN1, therefore be output as 2A; When the USB interface CN1 ' of the 2nd USB output circuit connects charging terminal, diode D1 conducting also drags down the first charging paths output voltage so that cannot be the second charging paths power supply, and the second charging paths USB interface CN1 ' exports 1A.
As a kind of execution mode, a described USB output circuit comprises that USB interface CN1, resistance R 1 are to resistance R 5;
Wherein, the pin one of USB interface CN1 is anodal, and is connected in resistance R 1 to the common port of resistance R 3, an anodal and DC current rectifying and wave filtering circuit of the 2nd USB output circuit; Pin two is connected in the common port of resistance R 2 and resistance R 4; Pin 3 is connected in the common port of resistance R 3 and resistance R 5; Pin 4 is negative pole and ground connection, is also connected in the positive pole of diode D1, the common port of resistance R 1, resistance R 4 and resistance R 5 and a DC current rectifying and wave filtering circuit.
As a kind of execution mode, a described DC current rectifying and wave filtering circuit comprises resistance R 6, capacitor C 1, electrochemical capacitor CE1, electrochemical capacitor CE2, inductance L 1 and diode D2;
Wherein, one end of resistance R 6 is connected in the positive pole of the first transforming circuit and diode D2, and the other end is connected in one end of capacitor C 1; The other end of capacitor C 1 is connected in negative pole, the positive pole of electrochemical capacitor CE1 and one end of inductance L 1 of diode D2, the other end of inductance L 1 is connected in the positive pole, resistance R 1 of electrochemical capacitor CE2 to common port, the positive pole of the 2nd USB output circuit and the pin one of USB interface CN1 of resistance R 3, the negative pole of electrochemical capacitor CE1 and electrochemical capacitor CE2 interconnects and is connected in the first transforming circuit, is also connected in the common port of resistance R 1, resistance R 4 and resistance R 5 and the pin 4 of USB interface CN1.
As a kind of execution mode, described the first transforming circuit comprises that chip U1, transformer T, resistance R 7 are to resistance R 13, capacitor C 2, capacitor C 3, electrochemical capacitor CE3, diode D3 and diode D4;
Wherein, the terminals A of transformer T is connected in the first common port of resistance R 7, resistance R 8 and capacitor C 2 and is connected in AC current rectifying and wave filtering circuit, the second common port of resistance R 7, resistance R 8 and capacitor C 2 is connected in the negative pole of diode D3, and the positive pole of diode D3 is connected in one end of resistance R 9; The terminals B of transformer T is connected in the other end of resistance R 9 and the pin one of chip U1; The terminals C of transformer T is connected in common port of resistance R 10, resistance R 11 and the positive pole of diode D4; The terminals D of transformer T is connected in the pin two of chip U1 to pin 5, is also connected in one end of capacitor C 3, resistance R 12 and the negative pole of electrochemical capacitor CE3 simultaneously; The pin 6 of chip U1 is connected in another common port of resistance R 10, resistance R 11 and the other end of resistance R 12; The pin 7 of chip U1 is connected in the other end of capacitor C 3 and one end of resistance R 13, and the other end of resistance R 13 is connected in the positive pole of electrochemical capacitor CE3 and the negative pole of diode D4; The terminals E of transformer T is connected in common port, the positive pole of diode D1 and pin 4 and the ground connection of USB interface CN1 of negative pole, resistance R 1, resistance R 4 and the resistance R 5 of electrochemical capacitor CE1 and electrochemical capacitor CE2; The terminals F of transformer T is connected in one end of resistance R 6 and the positive pole of diode D2.
As a kind of execution mode, described AC current rectifying and wave filtering circuit comprises lightning arrester F1, piezo-resistance RV1, rectifier bridge BD1, electrochemical capacitor CE4, electrochemical capacitor CE5 and magnet exciting coil LF1;
Wherein, after the pin one of rectifier bridge BD1 series connection lightning arrester F1, be connected in AC input L; Pin two is connected in AC input N, and pin one and pin two are connected respectively the two ends of piezo-resistance RV1; Pin 3 is connected in the terminals 1 of magnet exciting coil LF1 and the negative pole of electrochemical capacitor CE4; Pin 4 is connected in the terminals 2 of magnet exciting coil LF1 and the positive pole of electrochemical capacitor CE5; The terminals 3 of magnet exciting coil LF1 are connected in the first common port of terminals A, resistance R 7, resistance R 8 and the capacitor C 2 of positive pole, the second transforming circuit, the transformer T of electrochemical capacitor CE5; Terminals 4 are connected in negative pole and the second transforming circuit of electrochemical capacitor CE5.
As a kind of execution mode, described the second transforming circuit comprises that chip U1 ', transformer T ', resistance R 7 ' are to resistance R 13 ', capacitor C 2 ', capacitor C 3 ', electrochemical capacitor CE3 ', diode D3 ' and diode D4 ';
Wherein, the terminals A ' of transformer T ' is connected in the first common port of resistance R 7 ', resistance R 8 ' and capacitor C 2 ' and is connected in the terminals 3 of magnet exciting coil LF1 and the positive pole of electrochemical capacitor CE5, the second common port of resistance R 7 ', resistance R 8 ' and capacitor C 2 ' is connected in the negative pole of diode D3 ', and the positive pole of diode D3 ' is connected in one end of resistance R 9 '; The terminals B ' of transformer T ' is connected in the other end of resistance R 9 ' and the pin one of chip U1 ' '; The terminals C ' of transformer T ' is connected in common port of resistance R 10 ', resistance R 11 ' and the positive pole of diode D4 '; The terminals D ' of transformer T ' is connected in the pin two of chip U1 ' ' to pin 5 ', be also connected in one end of capacitor C 3 ', resistance R 12 ' and the negative pole of electrochemical capacitor CE3 ' simultaneously; The pin 6 ' of chip U1 ' is connected in another common port of resistance R 10 ', resistance R 11 ' and the other end of resistance R 12 '; The pin 7 ' of chip U1 ' is connected in the other end of capacitor C 3 ' and one end of resistance R 13 ', and the other end of resistance R 13 ' is connected in the positive pole of electrochemical capacitor CE3 ' and the negative pole of diode D4 '; The terminals E ' of transformer T ' and terminals F ' are all connected in the 2nd DC current rectifying and wave filtering circuit.
As a kind of execution mode, described the 2nd DC current rectifying and wave filtering circuit comprises resistance R 6 ', capacitor C 1 ', electrochemical capacitor CE1 ', electrochemical capacitor CE2 ', inductance L 1 ' and diode D2 ';
Wherein, one end of resistance R 6 ' is connected in the terminals F ' of transformer T ' and the positive pole of diode D2 ', and the other end is connected in one end of capacitor C 1 '; The other end of capacitor C 1 ' is connected in negative pole, the positive pole of electrochemical capacitor CE1 ' and one end of inductance L 1 ' of diode D2 ', the other end of inductance L 1 ' is connected in the positive pole, the 2nd USB output circuit, resistance R 1 of positive pole, a USB output circuit of electrochemical capacitor CE2 ' to the common port of resistance R 3, pin one, the other end of inductance L 1 and the positive pole of electrochemical capacitor CE2 of USB interface CN1, and the negative pole of electrochemical capacitor CE1 ' and electrochemical capacitor CE2 ' interconnects and be connected in terminals E ' and the 2nd USB output circuit of transformer T '.
As a kind of execution mode, described the 2nd USB output circuit comprises that USB interface CN1 ', voltage stabilizing didoe ZD1, resistance R 1 ' are to resistance R 5 ';
Wherein, the pin one of USB interface CN1 ' ' be anodal, and be connected in resistance R 1 ' to the common port of resistance R 3 ', negative pole, the other end of inductance L 1 ' and the positive pole of electrochemical capacitor CE2 ' of voltage stabilizing didoe ZD1, be also connected in resistance R 1 to the common port of resistance R 3, pin one, the other end of inductance L 1 and the positive pole of electrochemical capacitor CE2 of USB interface CN1; Pin two ' be connected in the common port of resistance R 2 ' and resistance R 4 '; Pin 3 ' is connected in the common port of resistance R 3 ' and resistance R 5 '; Pin 4 ' is negative pole and ground connection, and is connected in the common port of resistance R 1 ', resistance R 4 ' and resistance R 5 ', the negative pole of positive pole, electrochemical capacitor CE1 ' and electrochemical capacitor CE2 ' and the terminals E ' of transformer T ' of voltage stabilizing didoe ZD1.
Double-H groove weld SB charging circuit and the charger of the utility model embodiment, identification form double-H groove weld SB charged state automatically change current mode output automatically, have ground:
1. the charger of common 2.1A only has a USB interface, and the utility model embodiment has two USB interface, can be simultaneously for other terminal charges such as two mobile phones, and current limliting is respectively at 1.3A separately.
2. the output of common double USB interface is respectively 1A, but without 2.1A charging USB mouth, and the maximum exportable 2.1A of CN1 of the utility model embodiment.
3. when using separately, CN1 is 1A, and current limliting is 1.3A, and CN1 ' is 2A, and current limliting is 2.5A.
The above is embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection range of the present utility model.
Claims (10)
1. a double-H groove weld SB charging circuit, comprise AC current rectifying and wave filtering circuit, and be connected to described AC current rectifying and wave filtering circuit and anodal interconnective the first charging paths and the second charging paths, the first charging paths is by the first transforming circuit, the one DC current rectifying and wave filtering circuit and a USB output circuit are in series successively, the second charging paths is by the second transforming circuit, the 2nd DC current rectifying and wave filtering circuit and the 2nd USB output circuit are in series successively, it is characterized in that, between the one USB output circuit and the 2nd USB output circuit, be connected with the output mode commutation circuit for switching powering mode.
2. double-H groove weld SB charging circuit as claimed in claim 1, it is characterized in that, described output mode commutation circuit comprises diode D1, and the positive pole of diode D1 is connected in the negative pole of a USB output circuit, and the negative pole of the negative pole of diode D1 and the 2nd USB output circuit altogether.
3. double-H groove weld SB charging circuit as claimed in claim 2, is characterized in that, a described USB output circuit comprises that USB interface CN1, resistance R 1 are to resistance R 5;
Wherein, the pin one of USB interface CN1 is anodal, and is connected in resistance R 1 to the common port of resistance R 3, an anodal and DC current rectifying and wave filtering circuit of the 2nd USB output circuit; Pin two is connected in the common port of resistance R 2 and resistance R 4; Pin 3 is connected in the common port of resistance R 3 and resistance R 5; Pin 4 is negative pole and ground connection, is also connected in the positive pole of diode D1, the common port of resistance R 1, resistance R 4 and resistance R 5 and a DC current rectifying and wave filtering circuit.
4. as right, want the double-H groove weld SB charging circuit as described in 3, it is characterized in that, a described DC current rectifying and wave filtering circuit comprises resistance R 6, capacitor C 1, electrochemical capacitor CE1, electrochemical capacitor CE2, inductance L 1 and diode D2;
Wherein, one end of resistance R 6 is connected in the positive pole of the first transforming circuit and diode D2, and the other end is connected in one end of capacitor C 1; The other end of capacitor C 1 is connected in negative pole, the positive pole of electrochemical capacitor CE1 and one end of inductance L 1 of diode D2, the other end of inductance L 1 is connected in the positive pole, resistance R 1 of electrochemical capacitor CE2 to common port, the positive pole of the 2nd USB output circuit and the pin one of USB interface CN1 of resistance R 3, the negative pole of electrochemical capacitor CE1 and electrochemical capacitor CE2 interconnects and is connected in the first transforming circuit, is also connected in the common port of resistance R 1, resistance R 4 and resistance R 5 and the pin 4 of USB interface CN1.
5. double-H groove weld SB charging circuit as claimed in claim 4, is characterized in that, described the first transforming circuit comprises that chip U1, transformer T, resistance R 7 are to resistance R 13, capacitor C 2, capacitor C 3, electrochemical capacitor CE3, diode D3 and diode D4;
Wherein, the terminals A of transformer T is connected in the first common port of resistance R 7, resistance R 8 and capacitor C 2 and is connected in AC current rectifying and wave filtering circuit, the second common port of resistance R 7, resistance R 8 and capacitor C 2 is connected in the negative pole of diode D3, and the positive pole of diode D3 is connected in one end of resistance R 9; The terminals B of transformer T is connected in the other end of resistance R 9 and the pin one of chip U1; The terminals C of transformer T is connected in common port of resistance R 10, resistance R 11 and the positive pole of diode D4; The terminals D of transformer T is connected in the pin two of chip U1 to pin 5, is also connected in one end of capacitor C 3, resistance R 12 and the negative pole of electrochemical capacitor CE3 simultaneously; The pin 6 of chip U1 is connected in another common port of resistance R 10, resistance R 11 and the other end of resistance R 12; The pin 7 of chip U1 is connected in the other end of capacitor C 3 and one end of resistance R 13, and the other end of resistance R 13 is connected in the positive pole of electrochemical capacitor CE3 and the negative pole of diode D4; The terminals E of transformer T is connected in common port, the positive pole of diode D1 and pin 4 and the ground connection of USB interface CN1 of negative pole, resistance R 1, resistance R 4 and the resistance R 5 of electrochemical capacitor CE1 and electrochemical capacitor CE2; The terminals F of transformer T is connected in one end of resistance R 6 and the positive pole of diode D2.
6. double-H groove weld SB charging circuit as claimed in claim 5, is characterized in that, described AC current rectifying and wave filtering circuit comprises lightning arrester F1, piezo-resistance RV1, rectifier bridge BD1, electrochemical capacitor CE4, electrochemical capacitor CE5 and magnet exciting coil LF1;
Wherein, after the pin one of rectifier bridge BD1 series connection lightning arrester F1, be connected in AC input L; Pin two is connected in AC input N, and pin one and pin two are connected respectively the two ends of piezo-resistance RV1; Pin 3 is connected in the terminals 1 of magnet exciting coil LF1 and the negative pole of electrochemical capacitor CE4; Pin 4 is connected in the terminals 2 of magnet exciting coil LF1 and the positive pole of electrochemical capacitor CE5; The terminals 3 of magnet exciting coil LF1 are connected in the first common port of terminals A, resistance R 7, resistance R 8 and the capacitor C 2 of positive pole, the second transforming circuit, the transformer T of electrochemical capacitor CE5; Terminals 4 are connected in negative pole and the second transforming circuit of electrochemical capacitor CE5.
7. double-H groove weld SB charging circuit as claimed in claim 6, it is characterized in that, described the second transforming circuit comprises that chip U1 ', transformer T ', resistance R 7 ' are to resistance R 13 ', capacitor C 2 ', capacitor C 3 ', electrochemical capacitor CE3 ', diode D3 ' and diode D4 ';
Wherein, the terminals A ' of transformer T ' is connected in the first common port of resistance R 7 ', resistance R 8 ' and capacitor C 2 ' and is connected in the terminals 3 of magnet exciting coil LF1 and the positive pole of electrochemical capacitor CE5, the second common port of resistance R 7 ', resistance R 8 ' and capacitor C 2 ' is connected in the negative pole of diode D3 ', and the positive pole of diode D3 ' is connected in one end of resistance R 9 '; The terminals B ' of transformer T ' is connected in the other end of resistance R 9 ' and the pin one of chip U1 ' '; The terminals C ' of transformer T ' is connected in common port of resistance R 10 ', resistance R 11 ' and the positive pole of diode D4 '; The terminals D ' of transformer T ' is connected in the pin two of chip U1 ' ' to pin 5 ', be also connected in one end of capacitor C 3 ', resistance R 12 ' and the negative pole of electrochemical capacitor CE3 ' simultaneously; The pin 6 ' of chip U1 ' is connected in another common port of resistance R 10 ', resistance R 11 ' and the other end of resistance R 12 '; The pin 7 ' of chip U1 ' is connected in the other end of capacitor C 3 ' and one end of resistance R 13 ', and the other end of resistance R 13 ' is connected in the positive pole of electrochemical capacitor CE3 ' and the negative pole of diode D4 '; The terminals E ' of transformer T ' and terminals F ' are all connected in the 2nd DC current rectifying and wave filtering circuit.
8. double-H groove weld SB charging circuit as claimed in claim 7, is characterized in that, described the 2nd DC current rectifying and wave filtering circuit comprises resistance R 6 ', capacitor C 1 ', electrochemical capacitor CE1 ', electrochemical capacitor CE2 ', inductance L 1 ' and diode D2 ';
Wherein, one end of resistance R 6 ' is connected in the terminals F ' of transformer T ' and the positive pole of diode D2 ', and the other end is connected in one end of capacitor C 1 '; The other end of capacitor C 1 ' is connected in negative pole, the positive pole of electrochemical capacitor CE1 ' and one end of inductance L 1 ' of diode D2 ', the other end of inductance L 1 ' is connected in the positive pole, the 2nd USB output circuit, resistance R 1 of positive pole, a USB output circuit of electrochemical capacitor CE2 ' to the common port of resistance R 3, pin one, the other end of inductance L 1 and the positive pole of electrochemical capacitor CE2 of USB interface CN1, and the negative pole of electrochemical capacitor CE1 ' and electrochemical capacitor CE2 ' interconnects and be connected in terminals E ' and the 2nd USB output circuit of transformer T '.
9. double-H groove weld SB charging circuit as claimed in claim 8, is characterized in that, described the 2nd USB output circuit comprises that USB interface CN1 ', voltage stabilizing didoe ZD1, resistance R 1 ' are to resistance R 5 ';
Wherein, the pin one of USB interface CN1 ' ' be anodal, and be connected in resistance R 1 ' to the common port of resistance R 3 ', negative pole, the other end of inductance L 1 ' and the positive pole of electrochemical capacitor CE2 ' of voltage stabilizing didoe ZD1, be also connected in resistance R 1 to the common port of resistance R 3, pin one, the other end of inductance L 1 and the positive pole of electrochemical capacitor CE2 of USB interface CN1; Pin two ' be connected in the common port of resistance R 2 ' and resistance R 4 '; Pin 3 ' is connected in the common port of resistance R 3 ' and resistance R 5 '; Pin 4 ' is negative pole and ground connection, and is connected in the common port of resistance R 1 ', resistance R 4 ' and resistance R 5 ', the negative pole of positive pole, electrochemical capacitor CE1 ' and electrochemical capacitor CE2 ' and the terminals E ' of transformer T ' of voltage stabilizing didoe ZD1.
10. a double-H groove weld SB charger, described charger comprises housing, the plug of being located at respectively housing two ends and double-USB interface, is provided with circuit board in housing, it is characterized in that, is integrated with double-H groove weld SB charging circuit as claimed in any one of claims 1-9 wherein on circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669795.6U CN203589772U (en) | 2013-10-28 | 2013-10-28 | Double-USB charging circuit and charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669795.6U CN203589772U (en) | 2013-10-28 | 2013-10-28 | Double-USB charging circuit and charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203589772U true CN203589772U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320669795.6U Expired - Fee Related CN203589772U (en) | 2013-10-28 | 2013-10-28 | Double-USB charging circuit and charger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016074388A1 (en) * | 2014-11-12 | 2016-05-19 | 中兴通讯股份有限公司 | Charging method and apparatus |
| CN115733221A (en) * | 2022-11-28 | 2023-03-03 | 广东斯泰克电子科技有限公司 | USB quick charger |
-
2013
- 2013-10-28 CN CN201320669795.6U patent/CN203589772U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016074388A1 (en) * | 2014-11-12 | 2016-05-19 | 中兴通讯股份有限公司 | Charging method and apparatus |
| CN115733221A (en) * | 2022-11-28 | 2023-03-03 | 广东斯泰克电子科技有限公司 | USB quick charger |
| CN115733221B (en) * | 2022-11-28 | 2023-10-31 | 广东斯泰克电子科技有限公司 | USB quick charger |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20140507 Termination date: 20191028 |