| 摘要 |
An amplifier circuit for reducing instantaneous variance between output power and input signal has function of reducing load reactance effect and belongs to power amplifier. On certain conditions, the circuit can make additional phase shift to be less than the load impedance angle by 77 % - 100 %, characterized by put a part of the load coid of the voltage/current converter circuit into the current sample branch. Therefore, this invention is equivalent to the sample control circuit for output power. It is suitable for the power amplifier devices of Hi-Fi sound electro-magnetic vibration platform etc.. |
