dear sir,
i m a student of electronics and have a doubt in photosensitive relay circuit using SZIKLAI CONNECTION (COMPLEMENTARY DARLINGTON PAIR).. using BC147(NPN) SK100(PNP) and a LDR (connected between base and Vcc) using voltage divider bias.
i need to know when which transistor is in cut off and in saturation in regard to light falling on the LDR.
THANKING YOU
Aditya
i m a student of electronics and have a doubt in photosensitive relay circuit using SZIKLAI CONNECTION (COMPLEMENTARY DARLINGTON PAIR).. using BC147(NPN) SK100(PNP) and a LDR (connected between base and Vcc) using voltage divider bias.
i need to know when which transistor is in cut off and in saturation in regard to light falling on the LDR.
THANKING YOU
Aditya