SINGLE_OP_AMP_OSCILLATOR

Published:2009/6/25 4:40:00 Author:May | From:SeekIC

This circuit has a Schmitt trigger and in-tegrator built around one op amp. Timing is controlled by the RC network. Voltage at the inverting input follows the RC charging expo-nential within the upper and lower hysteresis levels. By closing the switch SWt, the dis-charge time of the capacitor becomes ten times as fast as the rise time. Thus a square wave with an 10:1 mark space ratio is generated.



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