The circuit presented is from the Motorola Linear Databook of 1990. The integrated circuit is a transconductance operating and the power supply need not be symmetrical.
In the figure we have the photo-conductive way of using a photocell to control a small motor with...
Pressing S1 the LED glows by a time interval depending on the capacitor. Time intervals in the...
This is a protection circuit in which, under excess current in the load, the SCR trips by shorting the...