Friday, September 26, 2014
Lamp Flasher Circuit Using Thermistors
A simple very low frequency oscillator or flasher circuit can be made by interconnecting one positive temperature co-efficient and one negative temperature co-efficient thermistor in series.
For conditions of oscillation the characteristics of the two devices have to be chosen carefully. The operating point is determined by the intersection of the two curves.
For conditions of oscillation the characteristics of the two devices have to be chosen carefully. The operating point is determined by the intersection of the two curves.
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