EDN

FET Constant Current Sources in Circuits

FET constant current sources use JFETs and MOSFETs to deliver a load current, which remains constant despite changes in load resistance or supply voltage. A FET constant current source is a type of ...
EDN

LM4041 voltage regulator impersonates precision current source

The LM4041 has been around for over 20 years. During those decades, while primarily marketed as a precision adjustable shunt regulator, this classic device also found its way into alternative ...
Electronic Design

Alternating Control and Optimizing Bandwidth in Buck-Boost Circuits

H-bridge buck-boost ICs are widely used in applications requiring a constant voltage or current source even when the system ...
Electronic Design

Voltage-Controlled Current Source Uses Two Op Amps

Author Mazi Hosseini describes a simple, low-cost, voltage-controlled current source using two op amps that provides a good range of current and maximum load. One challenge in circuit design is ...
Hackaday

Biasing Transistors With Current Sources

Over on his YouTube channel [Aaron Danner] explains biasing transistors with current sources in the 29th video of his Transistors Series. In this video, he shows how to replace a bias resistor (and ...