Ultra Low Current Oscillator


Posted on Feb 7, 2014

The circuit functions like a unijunction transistor relaxation oscillator. The base of the lower PNP transistor is biased at roughly half supply. As the 100pF capacitor is charged up through the 1G resistor, the base of the upper NPN transistor reaches a critical voltage, which begins to forward bias the base-emitter junction .


Ultra Low Current Oscillator
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