Charging a capacitor with constant current results in ... another simulation to see how that works. In this circuit, a PNP transistor sources current. The base voltage is about 0.7 V less than ...

JFETs make a simple and cost-effective constant-current source ... Three approaches to a JFET current source: The simple circuit, with a source resistor chosen to reduce the temperature ...

In his video [Afroman] describes how the LM317 can be used to regulate current rather than voltage to provide a constant current source under ... While this circuit may not be as efficient as ...

Figure 1’s negative constant current source has been a textbook application for the LM337 regulator forever (or thereabouts). It precisely maintains a constant output current (Iout) by forcing the ...