80V effective value analog switch circuit

Published:2011/6/20 7:31:00 Author:TaoXi | Keyword: 80V, effective value, analog switch | From:SeekIC

The 80V effective value analog switch circuit is as shown in the figure. In this circuit, the A1 is the operational amplifier MC1436G, A2 is the 823 type power operational amplifier, T1 is the small transformer MT11. The feedback circuit stabilizes the output signal to reduce the influence of the circuit parameters changing. The AC input signal which is changed in the range of ±10V can be turned on and off by the FET gate's -12V voltage, when the gate voltage is 0V, the switch turns on and the voltage is amplified and output by the amplification transformer. This circuit can be used in the digital same-frequency converter.



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