Posts Tagged ‘Current Source’
6th Mar 2010 | Comments Off
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 …
Read More 25th Dec 2009 | Comments Off
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 …
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