Electronics Projects Vol. 20

Electronics Projects Vol. 20

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The DC voltage across A-B should vary from 10V to 120V by adjusting potmeter VR1 (10k). If every thing is ... shows 0 volts. LOKESH KUMATH The circuit of automatic emergency light presented here has the following features: 1. When the mains supply (230V AC) is available, it charges a 12V battery up to 13.5V and then the battery is disconnected from the charging section. ... Once the battery is fully charged, charging section is cutoff from the battery due to energisation of relay RL2.

Title:Electronics Projects Vol. 20
Author:EFY Enterprises Pvt Ltd
Publisher:EFY Enterprises Pvt Ltd - 2009-11-01


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