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|