Current Source – Simple Circuit Diagram

Precision Current Source

March 6, 2010 Rend

This is a circuit of precision current source. This circuit uses two kinds of transistor, the 2N2219 bipolar and the 2N3069 JFET. Both of them are used as voltage devices between the current sensing resistor and the output. As the current sensing resistor this circuit uses R1. Here is the circuit : This circuit is called current source because this […]

Category: Control Electronics, Power Supply Tags: Current Source

Linear TEC (Thermo Electric Cooler) Driver

December 25, 2009 Adam

TEC is one of the cooler that was popular because of its robustness and maintenance free characteristic. This article shows one example of the TEC driver. To operate this circuit operates we need a single +5V supply and drives the TEC in the most preferred “constant-current” mode. It will deliver ±2A into a TEC. Picture below shows the schematic of […]

Category: Control Electronics Tags: Current Source

Tag: Current Source

Precision Current Source

Linear TEC (Thermo Electric Cooler) Driver