问题出在振荡线圈和晶体管之间。
Problems arose between oscillator coils and the transistors themselves.
举例说明，20兆赫兹的峰点是钳位过程结束后主要由场效应晶体管输出电容和变压器漏感引起的寄生振荡产生的。
For example, the peak at 20 MHz in the spectrum is caused by the parasitic oscillation due to the output capacitance of the MOSFET and the leakage inductance of the transformer.
研究晶体管变频器在各种振荡状况下及不同讯号频率时对有效变频跨导的影响。
The effective conversion transconductance of transistor converters using a PNP transistor operated at different oscillatory conditions and at various signal frequencies are studied.
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