JPS54124445A - Intermittent wiper circuit - Google Patents

Intermittent wiper circuit

Info

Publication number
JPS54124445A
JPS54124445A JP3074678A JP3074678A JPS54124445A JP S54124445 A JPS54124445 A JP S54124445A JP 3074678 A JP3074678 A JP 3074678A JP 3074678 A JP3074678 A JP 3074678A JP S54124445 A JPS54124445 A JP S54124445A
Authority
JP
Japan
Prior art keywords
wiper
transistor
thyristor
contact side
common contact
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
JP3074678A
Other languages
Japanese (ja)
Inventor
Toshiaki Goto
Yoshihiko Miura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP3074678A priority Critical patent/JPS54124445A/en
Publication of JPS54124445A publication Critical patent/JPS54124445A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent generation of uncomfortable noises during operation of wiper, by eliminating the use of electromagnetic relayrs from the intermittent wiper circuit.
CONSTITUTION: At the rest position W1 of wiper, common contact C of synchronous switch 2 is located at its brake contact side B. In this state, if a trigger pluse is given to the gate of thyristor 3, ground terminal of wiper motor 1 is held at the grounding potential through the conduction of thyristor 3 and the wiper starts its swinging. By the voltage developed across resistor 4, transistor 7 conducts while transistor 5 is de-energized. When the wiper is swung to position W2, common contact C is switched to the grounding contact side E whereby thyristor 3 and transistor 7 are de-energized. On the other hand, when the wiper returns to position W2 from position W3, common contact C is again switched to braking contact side B, whereby transistor 5 conducts and both ends of the wiper motor 1 is shortcitcuited. Resultantly, the wiper is braked by the induction voltage and stopped at position W1.
COPYRIGHT: (C)1979,JPO&Japio
JP3074678A 1978-03-17 1978-03-17 Intermittent wiper circuit Pending JPS54124445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3074678A JPS54124445A (en) 1978-03-17 1978-03-17 Intermittent wiper circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3074678A JPS54124445A (en) 1978-03-17 1978-03-17 Intermittent wiper circuit

Publications (1)

Publication Number Publication Date
JPS54124445A true JPS54124445A (en) 1979-09-27

Family

ID=12312235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3074678A Pending JPS54124445A (en) 1978-03-17 1978-03-17 Intermittent wiper circuit

Country Status (1)

Country Link
JP (1) JPS54124445A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60176958U (en) * 1984-05-02 1985-11-25 アスモ株式会社 wiper drive device
US4614903A (en) * 1983-09-14 1986-09-30 Itt Industries, Inc. Windshield wiper speed control arrangement
JPS6382859A (en) * 1986-09-29 1988-04-13 Shindengen Electric Mfg Co Ltd Wiper motor driving circuit
US5306991A (en) * 1989-06-01 1994-04-26 Nippon Cable System Inc. Window wiper and wiper actuating mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614903A (en) * 1983-09-14 1986-09-30 Itt Industries, Inc. Windshield wiper speed control arrangement
JPS60176958U (en) * 1984-05-02 1985-11-25 アスモ株式会社 wiper drive device
JPH0315410Y2 (en) * 1984-05-02 1991-04-04
JPS6382859A (en) * 1986-09-29 1988-04-13 Shindengen Electric Mfg Co Ltd Wiper motor driving circuit
US5306991A (en) * 1989-06-01 1994-04-26 Nippon Cable System Inc. Window wiper and wiper actuating mechanism

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