Light automatic regulator circuit

Published:2011/8/28 4:19:00 Author:chopper | Keyword: Light, automatic regulator | From:SeekIC

As shown, the circuit can adjust light level according to the strength of outside light automatically. If the external brightness is high, light will be dark, whereas the brightness is low, light will be bright. The thyristor VT1 and diodes VD1~VD4 in figure form full-wave phased circuit with the neontube N as trigger tube of VT1.AdjustingW canchange the charging time constant of capacitor C, that is to change the conduction angle of VT1, in order to control the brightness of the light.



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