KR930024246A - Driving Circuit of Photo Reflector in Headphone Stereo - Google Patents

Driving Circuit of Photo Reflector in Headphone Stereo Download PDF

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Publication number
KR930024246A
KR930024246A KR1019920008844A KR920008844A KR930024246A KR 930024246 A KR930024246 A KR 930024246A KR 1019920008844 A KR1019920008844 A KR 1019920008844A KR 920008844 A KR920008844 A KR 920008844A KR 930024246 A KR930024246 A KR 930024246A
Authority
KR
South Korea
Prior art keywords
voltage
driving circuit
phase motor
headphone stereo
transistor
Prior art date
Application number
KR1019920008844A
Other languages
Korean (ko)
Inventor
유성식
Original Assignee
황선두
삼성전기 주식회사
Filing date
Publication date
Application filed by 황선두, 삼성전기 주식회사 filed Critical 황선두
Publication of KR930024246A publication Critical patent/KR930024246A/en

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Abstract

세트의 Vcc 전압보다 높은 구동전압을 요구하는 포토리플렉터를 별도의 승압회로 없이 구동하기 위한 회로는 세트내의 3상모터의 일측전선에서 발생되는 역기전압과 Vcc 세트 동작전압과의 차에 의한 트랜지스터가 턴온되게 연결하여, 상기 트랜지스터(Q2)를 통한 3상모터(10)의 역기전압으로 포트리플렉터를 구동하도록 구성한다.The circuit for driving a photoreflector requiring a driving voltage higher than the set Vcc voltage without a separate boost circuit has a transistor turned on due to a difference between a counter voltage generated at one side wire of a three-phase motor in the set and a Vcc set operating voltage. It is configured to drive the port reflector with the counter electromotive voltage of the three-phase motor 10 through the transistor (Q 2 ).

이에따라 세트사이즈축소 및 원가절감을 기대할 수 있다.As a result, the set size and cost can be reduced.

Description

헤드폰스테레오에서의 포토리플렉터의 구동회로Driving Circuit of Photo Reflector in Headphone Stereo

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

Claims (1)

세트내에 3상모터(10)의 일측전선에서 발생되는 역기전압과 Vcc 세트 구동전압과의 차에 의해 트랜지스터(Q2)가 온되게 연결하여 상기 트랜지스터(Q2)를 통한 3상모터(10)의 역기전압에 의해 포토리플렉터(D1)가 동작하도록 구성하는 것을 특징으로 하는 헤드폰 스테레오에서의 포토리플렉터 구동회로.The three-phase motor 10 through the transistor Q 2 is connected by connecting the transistor Q 2 to be turned on due to a difference between the counter voltage generated from one wire of the three-phase motor 10 and the Vcc set driving voltage in the set. The photoreflector driving circuit in the headphone stereo, characterized in that the photoreflector (D 1 ) is configured to operate according to the counter electromotive voltage. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920008844A 1992-05-25 Driving Circuit of Photo Reflector in Headphone Stereo KR930024246A (en)

Publications (1)

Publication Number Publication Date
KR930024246A true KR930024246A (en) 1993-12-22

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