JPS5510883A - Bridge type governor starting circuit for dc motor - Google Patents

Bridge type governor starting circuit for dc motor

Info

Publication number
JPS5510883A
JPS5510883A JP8418478A JP8418478A JPS5510883A JP S5510883 A JPS5510883 A JP S5510883A JP 8418478 A JP8418478 A JP 8418478A JP 8418478 A JP8418478 A JP 8418478A JP S5510883 A JPS5510883 A JP S5510883A
Authority
JP
Japan
Prior art keywords
transistor
resistor
motor
capacitor
bridge
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.)
Granted
Application number
JP8418478A
Other languages
Japanese (ja)
Other versions
JPS5951229B2 (en
Inventor
Nobuyuki Sada
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.)
Mabuchi Motor Co Ltd
Original Assignee
Mabuchi Motor Co Ltd
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 Mabuchi Motor Co Ltd filed Critical Mabuchi Motor Co Ltd
Priority to JP8418478A priority Critical patent/JPS5951229B2/en
Publication of JPS5510883A publication Critical patent/JPS5510883A/en
Publication of JPS5951229B2 publication Critical patent/JPS5951229B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Motor And Converter Starters (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To prevent overprotection of the temperature characteristics of a voltage detecting transistor of a DC motor by omitting the diode connected beween the transistor and a power supply and connecting a capacitor in parallel with diodes connected in a bridge circuit.
CONSTITUTION: The armature winding Ra and resistors R1∼R3 of a DC motor form a bridge. An armature voltage detecting transistor Q1 operates to control the base potential of a current feeding control transistor (TR)Q2 to thereby drive the motor as predetermined. A parallel circuit of a diode D2 and a capacitor C is connected between the bias resistor R6 and the bridge resistor R3 of the transistor Q2. When the transistor Q2 starts conducting, the potential of the connecting point between the capacitor and the resistor R3 is lowered to discharge the capacitor in the circuit of the resistor R3-motor M-resistor R4-transistor Q1-resistor R2-capacitor C to positively feed back the transistor Q1 to thereby accelerate the conduction of the transistor Q2.
COPYRIGHT: (C)1980,JPO&Japio
JP8418478A 1978-07-11 1978-07-11 Bridge type governor starting circuit for DC motor Expired JPS5951229B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8418478A JPS5951229B2 (en) 1978-07-11 1978-07-11 Bridge type governor starting circuit for DC motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8418478A JPS5951229B2 (en) 1978-07-11 1978-07-11 Bridge type governor starting circuit for DC motor

Publications (2)

Publication Number Publication Date
JPS5510883A true JPS5510883A (en) 1980-01-25
JPS5951229B2 JPS5951229B2 (en) 1984-12-12

Family

ID=13823386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8418478A Expired JPS5951229B2 (en) 1978-07-11 1978-07-11 Bridge type governor starting circuit for DC motor

Country Status (1)

Country Link
JP (1) JPS5951229B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757354A (en) * 1986-05-02 1988-07-12 Matsushita Electrical Industrial Co., Ltd. Projection optical system
US5886835A (en) * 1995-03-24 1999-03-23 Nikon Corporation Relay optical system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757354A (en) * 1986-05-02 1988-07-12 Matsushita Electrical Industrial Co., Ltd. Projection optical system
US5886835A (en) * 1995-03-24 1999-03-23 Nikon Corporation Relay optical system

Also Published As

Publication number Publication date
JPS5951229B2 (en) 1984-12-12

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