CN221428772U - Stabilization system with hysteresis circuit - Google Patents
Stabilization system with hysteresis circuit Download PDFInfo
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- CN221428772U CN221428772U CN202323502040.XU CN202323502040U CN221428772U CN 221428772 U CN221428772 U CN 221428772U CN 202323502040 U CN202323502040 U CN 202323502040U CN 221428772 U CN221428772 U CN 221428772U
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- 230000006641 stabilisation Effects 0.000 title claims description 5
- 238000011105 stabilization Methods 0.000 title claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 16
- 238000004088 simulation Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Control Of Voltage And Current In General (AREA)
Abstract
The utility model discloses a stabilizing system with a hysteresis circuit, which relates to the technical field of power stabilizing systems, wherein a stabilizing system circuit comprises resistors R1, R2, R3, R4, rc1 and Rc2, triodes Q1 and Q2, the triodes Q1 and Q2 are NPN triodes, and a base electrode of the triode Q1 is connected with the resistor R1.
Description
Technical Field
The utility model relates to the technical field of power supply stabilizing systems, in particular to a stabilizing system with a hysteresis circuit.
Background
In an automobile power supply system, the output stability of the power supply system directly influences the normal operation of various electric appliances and circuits, the electric appliances are damaged easily due to the fact that too high or too low voltage is adopted, a voltage detection device is added into the automobile power supply system at present, signal detection processing is carried out through an MCU, and the stable operation of the automobile power supply system is guaranteed.
Disclosure of utility model
The present utility model is directed to a stabilizing system with a hysteresis circuit, which solves the problems of the prior art set forth in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The stabilizing system comprises resistors R1, R2, R3, R4, rc1 and Rc2, and triodes Q1 and Q2, wherein the triodes Q1 and Q2 are NPN triodes, the base electrode of the triode Q1 is connected with the resistor R1, the collector electrode is connected with the resistor Rc1, the emitter electrode is connected with the resistor R2, and the other end of the resistor R2 is grounded; the base electrode of the triode Q2 is connected with the emitter electrode of the triode Q1 through a resistor R3, the base electrode of the triode Q2 is also connected with a resistor R4, and the other end of the resistor R4 is grounded; the emitter of the triode Q2 is connected with the emitter of the triode Q1, and the collector of the triode Q2 is connected with the other end of the resistor Rc1 through the resistor Rc 2.
Preferably, the node where the resistors Rc1 and Rc2 are connected is inputted with an operating voltage V1.
Preferably, one end of the resistor R1 is a signal voltage input end, and the collector of the triode Q2 is a high-low level signal output end.
Preferably, the working voltage V1 is a direct current 5V voltage.
Compared with the prior art, the utility model has the beneficial effects that:
The utility model adopts a triode and resistor combined circuit to realize a hysteresis circuit system, the system circuit adopts the triode to be combined and turns on and off a back-end circuit in a signal mode, and according to the saturated on, reverse off and amplification characteristics of the triode, a simple combined circuit is designed to realize that when the external power supply voltage fluctuates abnormally, the system can accurately enter a designed under-voltage turn-off and over-voltage turn-off mechanism, so as to avoid the risks of unstable work and even failure of the back-end system circuit caused by ringing of the system and untimely turn-off of the back-end system circuit during under-voltage and over-voltage.
Drawings
Fig. 1 is an electrical schematic of the present utility model.
FIG. 2 is a diagram of the simulation results of the circuit of the present utility model.
Fig. 3 is a schematic diagram of the connection of the present utility model in an automotive power supply system.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
Referring to fig. 1-3, the present utility model provides the following technical solutions:
The utility model provides a stabilizing system who possesses hysteresis circuit, stabilizing system circuit includes resistance R1, R2, R3, R4 and Rc1, rc2, triode Q1 and Q2 are NPN triode, be connected with resistance R1 on triode Q1's the base, be connected with resistance Rc1 on the collector, be connected with resistance R2 on the transmitting electrode, the other end ground of resistance R2.
The base electrode of the triode Q2 is connected with the emitter electrode of the triode Q1 through a resistor R3, the base electrode of the triode Q2 is also connected with a resistor R4, and the other end of the resistor R4 is grounded; the emitter of the triode Q2 is connected with the emitter of the triode Q1, and the collector of the triode Q2 is connected with the other end of the resistor Rc1 through the resistor Rc 2.
The working voltage V1 is input at a node where the resistors Rc1 and Rc2 are connected, and the working voltage V1 is direct current 5V voltage; one end of the resistor R1 is a signal voltage input end, and the collector electrode of the triode Q2 is a high-low level signal output end.
The following simulation experiments were performed: the sawtooth wave V2 signal of 0V-5V is input, the IN on voltage is VH, the off voltage is VL, the triode VBE voltage is 0.7V, and other on voltages of the triode are ignored. State one: q2 is conducted, and VOUT is low level; state two: v2 voltage continuously rises, Q1 is on, Q2 is off, where vh=0.7+ (v1×r2)/(rc2+r2), VOUT is high; state three: v2 voltage continues to drop, Q1 turns off, Q2 turns on, where vh=0.7+ (v1×r2)/(rc1+r2), VOUT is low; simultaneous equations solve for Rc1 = 4.56 x r2, rc2 = 2.85 x r2. The guaranteed power consumption takes r2=2k, rc1=9.12k, rc2=5.70K. The simulation results according to the above parameters are as shown in fig. 2: the simulation result was that the VH voltage was 2.1V and the vl voltage was 1.4V.
According to the simulation result, when the input signal voltage V2 is larger than the VH voltage, the VOUT end of the stabilizing system outputs a high level, when the input signal voltage V2 is smaller than the VL voltage, the VOUT end of the stabilizing system outputs a low level, and when the input signal voltage V2 is between the VH and the VL, the VOUT end output state of the stabilizing system is the same as the previous state, and the specific parameters of components in the stabilizing system are adjusted according to the actual use environment.
The stabilizing system can meet the mechanism of under-voltage turn-off and over-voltage turn-off of the power supply system, so as to avoid the risk of unstable operation and even failure of the system circuit at the rear end caused by ringing of the system and untimely closing of the system circuit at the rear end during under-voltage and over-voltage.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The stabilizing system with the hysteresis circuit is characterized in that the stabilizing system circuit comprises resistors R1, R2, R3, R4, rc1 and Rc2, triodes Q1 and Q2, wherein the triodes Q1 and Q2 are NPN triodes, the base electrode of the triode Q1 is connected with the resistor R1, the collector electrode is connected with the resistor Rc1, the emitter electrode is connected with the resistor R2, and the other end of the resistor R2 is grounded;
The base electrode of the triode Q2 is connected with the emitter electrode of the triode Q1 through a resistor R3, the base electrode of the triode Q2 is also connected with a resistor R4, and the other end of the resistor R4 is grounded;
The emitter of the triode Q2 is connected with the emitter of the triode Q1, and the collector of the triode Q2 is connected with the other end of the resistor Rc1 through the resistor Rc 2.
2. A stabilization system with hysteresis circuitry according to claim 1, wherein: the node where the resistors Rc1 and Rc2 are connected is inputted with an operating voltage V1.
3. A stabilization system with hysteresis circuitry according to claim 1, wherein: one end of the resistor R1 is a signal voltage input end, and the collector electrode of the triode Q2 is a high-low level signal output end.
4. A stabilization system with hysteresis circuitry according to claim 2, wherein: the working voltage V1 is direct current 5V voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323502040.XU CN221428772U (en) | 2023-12-21 | 2023-12-21 | Stabilization system with hysteresis circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323502040.XU CN221428772U (en) | 2023-12-21 | 2023-12-21 | Stabilization system with hysteresis circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221428772U true CN221428772U (en) | 2024-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323502040.XU Active CN221428772U (en) | 2023-12-21 | 2023-12-21 | Stabilization system with hysteresis circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221428772U (en) |
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2023
- 2023-12-21 CN CN202323502040.XU patent/CN221428772U/en active Active
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