The push-pull power amplifier circuit formed by MOSFET

Published:2011/6/9 3:02:00 Author:leo | Keyword: The push-pull power amplifier circuit formed by MOSFET | From:SeekIC

The picture 1 shows a push-pull power amplifier circuit formed by MOSFET. VT1 and VT2 form the propel circuit, which uses transformer T1 to get the same output value but different polarity signals. And the signals are driven separately by the power output ports formed by VT3 and VT4 (VT5 and VT6). In order to increase output power, when the operating power is 1 kHz, the minimum distortion is 0.25%. The voltage gain of median frequency period is 31.5 dB.When voltage gain is -3dB, the bandwidth is narrow, which is 11 kHz to 16.8 kHz. When input port is short or cut off, noise voltage is 0.22 mV. So it has excellent performance.



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