The automobile supervision circuit

Published:2011/6/3 2:21:00 Author:Seven | Keyword: automobile, supervision circuit | From:SeekIC

This circuit is used to supervise the automobile power supply of 12V. If the voltage ranges 12~14.5v, it is normal; if the voltage is lower than 12v or higher than 14.5v, there will be indicators glowing. A1 and A2 are the indicator comparator, which are used to adjust the relays of W1 and W2. When the voltage of automobile power supply is higher than 14.5v, the indicator of B is lighting; if it is lower than 12v, the indicator of A is lighting; when it is normal, neither of the indicators is glowing.



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