Using the averaged switch modeling approach, a non-linear large-signal averaged model of non-ideal PWM switch is derived, taking into account all parasitic resistances and threshold voltage of diode. 运用平均开关建模法,建立非理想PWM开关的非线性大信号平均模型,包含全部寄生电阻和二极管的正向压降。
Because of the influence of some parasitic parameter in PIN diode and circuits, some measure must be taken to compensate the circuits. 由于PIN管和开关电路中存在一些寄生参量的影响,实际制作中可采取相应措施对电路进行补偿。
Although an unencapsulated diodes is used, parasitic reactances have increased at higher microwave frequencies when the diode is mounted in its microwave circuit. 在较高的微波频率上,所使用的无封装二极管装入微波电路引起的寄生电抗,其重要性显著增加。
It is concluded by those analysis that the proposed converter can realize ZVS from none load to full load, eliminate the duty cycle losses and parasitic ringing in secondary side diode, which hereby make higher efficiency and reduce the converter volume. 从分析可知该变换器可以在轻载到满负载的宽范围内实现软开关,实现了次级整流二极管的自然换流,消除了副边占空比丢失和次级二极管的振荡。
On-chip active inductor load, off-chip bonding-wire parasitic inductor load, self-biased technology and direct-coupled technology are employed to increase the gain, widen the bandwidth and reduce the power dissipation of the proposed laser diode driver. 电路采用了有源电感负载技术、键合线寄生电感负载技术、自偏置技术和放大级直接耦合技术以提高增益、拓展带宽、降低功耗。
For the capacity of MOSFET is small, high-power induction heating power require devices in parallel and in order to eliminate the inherent parasitic diode reverse recovery characteristics of the negative, quickly restore diodes must be used in series. 由于功率MOSFET器件单管容量小,大功率设备需要大量的器件并联使用,而为了消除其固有的寄生二极管的不良反向恢复特性,必须串联快恢复二极管。