Simple emergency lighting circuit
Source: InternetPublisher:公子李 Keywords: Lights emergency lighting batteries Updated: 2020/11/12
It uses thyristor V control. When the mains power is normal, V is turned off and the light EL does not light up. At the same time,
the battery GB is charged by the mains voltage step-down rectifier. When the mains power fails
, V is turned on and the lamp EL automatically lights up and is powered by the battery
.
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