Electronics Projects Vol. 21

Electronics Projects Vol. 21

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1: Audio-visual indication of low-battery condition in emergency light circuit proposed by the author UNKNOWN Fig. ... mains supply, diode D3 keeps transistor T2 in its cut-off state, while diode D4 provides DC path for charging of the battery. ... The inverter can be switched a#39;off, when not required, by using a#39;on/ off switch SI.

Title:Electronics Projects Vol. 21
Author:EFY Enterprises Pvt Ltd
Publisher:EFY Enterprises Pvt Ltd - 2009-11-01


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