A current source provides electrical energy with a constant current. The implication is that if the resistance of the load changes the current source will vary the voltage to compensate.

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 ...

The ever innovative and prolific Mr. Woodward has offered “PWM-programmed LM317 constant current source,” an intriguing programmable constant current source which elicited a lively conversation in its ...

(Image: Electrical Technology) Q: What is a current source? A: As the name implies, the current source is like a voltage source but different. It delivers a constant current to the load regardless of ...

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 ...

Since the SSR also needs to have a wide control voltage range, he describes how the two transistor constant-current input block works to limit opto-triac LED current over a range of 2 V to 30 V.

This article presents some constant sources that drive LED. It uses a constant current source instead of constant voltage to drive LED. This article presents some constant sources that drive LED. It ...

Most of us are used to thinking in terms of voltage sources so there is rarely a ... company will soon announce a proprietary line of constant current cells in the same form factor as existing ...

Abstract: Constant current source that converted from voltage source has worse temperature characteristics, as typical BCD process does not support high precision and low temperature coefficient ...

Abstract: A current source is one of the most important circuits in Electrical Impedance Tomography (EIT) hardware systems for measuring conductive multiphase flows. One of its important and ...