Motor vehicle low temperature starter

Published:2011/7/20 19:10:00 Author:Lucas | Keyword: Motor vehicle , low temperature , starter | From:SeekIC

The motor low temperature starter circuit consists of control switch S, resistors Rl-R3, capacitor C, transistor V, and time-base integrated circuit IC, and the circuit is shown in Figure 7-175. In the circuit, IC, and Rl, R2, C forme 40OHz pulse oscillator circuit; V and R3 form electronic switching circuit. Rl-R3 select 1/4W metal film resistors. C uses the monolithic capacitors or polyester capacitors. V uses 3DDl5D or 3DDlO2D silicon NPN transistor. IC chooses NE555 time-base integrated circuit. S selects small toggle switch with contact current in 5A.



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