Basic LM317 current source I wondered if the subcircuit consisting of the LM317 and resistors Rs and Rc could form the basis for such a circuit if it were driven from a suitable control current. In ...

In many applications, you need a real current source and luckily, they aren’t hard to create. As always with Circuit VR, we’ll be using LT Spice to examine the circuits.

Edward Norton of Bell Labs developed his current source theorem back in 1926 as a way to realize an alternative kind of circuit analysis. A current source supplies a fixed current with high ...

2. A better approach is to use a FET as a constant-current source. The IXTP3N50D2 Dmode FET from IXYS Corp. powers a 5-W white VLED such as the LZI-00NW05 from LEDengin (190 lumens at 1 A); the ...

The use of constant current sinks/sources (CCS’s) are common in Hi-Fi. They have a variety of purposes especially in tube audio electronics, most of which are employed to force other tubes in the ...

In this circuit, a PNP transistor sources current. The base voltage is about 0.7 V less than the emitter voltage. So with 10.3 V on the base, the emitter has about 11 V and R1 sees about 1 V ...

Additionally, innovative concepts such as the three-phase boost-stage coupled current source inverter have simplified multilevel modulation schemes and reduced switch stress, which is critical in ...

Instead, in this case, analogue and digital blocks are built from actively-controlled 12V enhancement-mode GaN hemts, combined with the pull-up effect of 12V depletion-mode GaN hemts used as ...