The automobile steering alarm (1)

Published:2011/7/22 21:18:00 Author:qqtang | Keyword: steering alarm | From:SeekIC

The working principle of the circuit The automobile steering alarm consists of the audio trigger circuit and audio amplifier output circuit, see as figure 7-124. The audio trigger circuit consists of the resistors R1-R4, diodes of VD1 and VD2, capacitors of C1 and C2, regulated diodes of VS1-VS2 and audio integrated circuit IC1. The audio amplifier output circuit consists of the resistors C3-C6, resistor R5, audio power amplifier integrated circuit IC2 and loudspeaker BL.



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