The circuit presented was suggested by Texas Instruments in an opto-electronics manual. The transistor can be the BC548 and the supply voltage depends on the application.
Found in the 1995 Encyclopedia of Electronic Circuits volume 5, this circuit has a constant...
This High Side Current Monitor was found in a 2005 Linear Technology White Paper. The circuit...
The relationship of values between R1 and R2 determines the reference voltage for this circuit that...