Even without the capacitor, the time constant and non-linear nature of the design idea’s (DI’s) PWM-driven circuit has limitations if used as a source of AC signals. Of course, the title of the DI ...

The measurement is actually the voltage drop induced by a constant current source, so it isn’t handy to read the actual resistance, but it will show you where a branch is shorted.

At first glance, [RobBest]’s constant current source looks old school. The box is somewhat old-fashioned, featuring switches and binding posts. Most importantly, there’s a large analog … ...

Through simple circuit modifications, designers can use peak current limiting to produce a constant current source.

Current source inverters and converters represent a crucial class of power electronics devices that convert direct current from a constant current source into alternating currents with precise ...

This design idea reprises another “ 1A, 20V, PWM controlled current source.” Like the earlier circuit, this design integrates an LM3x7 adjustable regulator with a PWM DAC to make a programmable 20 V, ...