KR930024246A - Driving Circuit of Photo Reflector in Headphone Stereo - Google Patents
Driving Circuit of Photo Reflector in Headphone Stereo Download PDFInfo
- 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
Links
- 238000010586 diagram Methods 0.000 description 1
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
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)
Publications (1)
Publication Number | Publication Date |
---|---|
KR930024246A true KR930024246A (en) | 1993-12-22 |
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