JPS6474086A - Forward and reverse device of dc small motor - Google Patents

Forward and reverse device of dc small motor

Info

Publication number
JPS6474086A
JPS6474086A JP62226818A JP22681887A JPS6474086A JP S6474086 A JPS6474086 A JP S6474086A JP 62226818 A JP62226818 A JP 62226818A JP 22681887 A JP22681887 A JP 22681887A JP S6474086 A JPS6474086 A JP S6474086A
Authority
JP
Japan
Prior art keywords
reverse
comparator
transistors
motor
output
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
JP62226818A
Other languages
Japanese (ja)
Other versions
JP2629199B2 (en
Inventor
Mitsuharu Ota
Muneyoshi Hirano
Isao Yoshida
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62226818A priority Critical patent/JP2629199B2/en
Publication of JPS6474086A publication Critical patent/JPS6474086A/en
Application granted granted Critical
Publication of JP2629199B2 publication Critical patent/JP2629199B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE:To make it possible to perform a forward and reverse function and a speed control function by low voltage and low power consumption by connecting the output of a comparator for forward and a comparator for reverse to an earth selectively. CONSTITUTION:When a switch 3 for forward and reverse is set to the A side, the transistors 19 and 20 are turned off, and 24 and 25 of them are turned on. Accordingly, the current in the forward direction is supplied to a DC motor 14 through the transistors 16 and 26. At this time, a bridge circuit is constituted of the DC motor 14 and the resistors 6, 7 and 8. A comparator 5 controls the transistors 16 and 26 according to a deviation of output of the bridge circuit from reference voltage. When the switch 3 for forward and reverse is set to the B side, the current in the reverse direction is supplied to the DC motor 14 through the transistors 15 and 21. At this time, a comparator 4 controls the transistor 15 and 21 according to output of the bridge circuit.
JP62226818A 1987-09-10 1987-09-10 Forward and reverse rotation device for DC motor Expired - Fee Related JP2629199B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62226818A JP2629199B2 (en) 1987-09-10 1987-09-10 Forward and reverse rotation device for DC motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62226818A JP2629199B2 (en) 1987-09-10 1987-09-10 Forward and reverse rotation device for DC motor

Publications (2)

Publication Number Publication Date
JPS6474086A true JPS6474086A (en) 1989-03-20
JP2629199B2 JP2629199B2 (en) 1997-07-09

Family

ID=16851079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62226818A Expired - Fee Related JP2629199B2 (en) 1987-09-10 1987-09-10 Forward and reverse rotation device for DC motor

Country Status (1)

Country Link
JP (1) JP2629199B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858887A (en) * 1981-09-30 1983-04-07 Nec Corp Motor speed regulator
JPS59103599U (en) * 1982-12-25 1984-07-12 株式会社日本コインコ Output adjustment circuit for small DC motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858887A (en) * 1981-09-30 1983-04-07 Nec Corp Motor speed regulator
JPS59103599U (en) * 1982-12-25 1984-07-12 株式会社日本コインコ Output adjustment circuit for small DC motor

Also Published As

Publication number Publication date
JP2629199B2 (en) 1997-07-09

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees