With this circuit it is possible to obtain a higher voltage from a zener diode. The circuit is from a 1970’s EEE. The device used as a constant current source is uncommon today.
March 2017 - Texas Instruments is already making available through Mouser Electronics the LP5907 an...
We got this circuit in an old publication from 1978. The circuit uses a phototransistor and an...
This simple PWM control was found in American documentation. We can use any power transistor...