JPS558222A - Dc motor drive controller - Google Patents

Dc motor drive controller

Info

Publication number
JPS558222A
JPS558222A JP7934178A JP7934178A JPS558222A JP S558222 A JPS558222 A JP S558222A JP 7934178 A JP7934178 A JP 7934178A JP 7934178 A JP7934178 A JP 7934178A JP S558222 A JPS558222 A JP S558222A
Authority
JP
Japan
Prior art keywords
transistor
base current
saturated voltage
reduce
motor drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7934178A
Other languages
Japanese (ja)
Inventor
Takeshi Endo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Epson Corp
Original Assignee
Seiko Epson Corp
Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, Epson Corp filed Critical Seiko Epson Corp
Priority to JP7934178A priority Critical patent/JPS558222A/en
Publication of JPS558222A publication Critical patent/JPS558222A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To reduce the reactive current of a DC motor by detecting the saturated voltage of a drive transistor and controlling the base current of the transistor by a saturated voltage detection controller to thereby reduce the saturated voltage and to control the base current of the transistor.
CONSTITUTION: A saturated voltage detection controller 20 consists of a saturated voltage detecting transistor (TR)21, a base current supply resistor 22 of the transistor TR21 connected to one end of a power supply, a first diode 23 connected to a drive transistor 12 to become forward direction, a second diode 24 connected to the base of the transistor TR21 to become forward direction, and a load resistor 25 of the transistor TR21 as the base current supply resistor of the base current control transistor 26. Thus, it can reduce the saturated voltage of the drive transistor of a DC motor and decrease the reactive current by controlling the base current of the transistor.
COPYRIGHT: (C)1980,JPO&Japio
JP7934178A 1978-06-29 1978-06-29 Dc motor drive controller Pending JPS558222A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7934178A JPS558222A (en) 1978-06-29 1978-06-29 Dc motor drive controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7934178A JPS558222A (en) 1978-06-29 1978-06-29 Dc motor drive controller

Publications (1)

Publication Number Publication Date
JPS558222A true JPS558222A (en) 1980-01-21

Family

ID=13687188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7934178A Pending JPS558222A (en) 1978-06-29 1978-06-29 Dc motor drive controller

Country Status (1)

Country Link
JP (1) JPS558222A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57118654U (en) * 1981-01-15 1982-07-23
JPS63106101A (en) * 1986-05-27 1988-05-11 Bridgestone Corp Rim for two wheeler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57118654U (en) * 1981-01-15 1982-07-23
JPS63106101A (en) * 1986-05-27 1988-05-11 Bridgestone Corp Rim for two wheeler

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