By using dual bipolar devices in one case, the manufacturer nearly perfectly matches the two devices. Although this Design Idea describes a positive power supply, you can realize a similar ...

But from there he moves on to the juicy bits. He builds a transistor-based constant current driver, then adds voltage regulation for the circuit as seen in the schematic on the left.

Can the classic discrete one transistor constant (ish) current source do something similar? – see the top diagram, where the same circuit is connected both ways around to an ac voltage source. The 50Ω ...

Response of Chemical Field-Effect Transistor (CHEMFET) electrochemical sensors are taken from the output of a readout interface circuit that maintains constant drain-source voltage and current levels.

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 ...

But from there he moves on to the juicy bits. He builds a transistor-based constant current driver, then adds voltage regulation for the circuit as seen in the schematic on the left.

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 ...

First Transistor Using Nanotechnology Is 50 Times More Energy Efficient Than Current Models Date: April 26, 2008 Source: Lund University Summary: Transistors are an indispensable building block in ...

Can the classic discrete one transistor constant (ish) current source do something similar? – see the top diagram, where the same circuit is connected both ways around to an ac voltage source. The 50Ω ...