重点讨论了超前管、滞后管实现零电压开关的差异以及副边占空比丢失的原因。
The difference of leading switches and lagging switches to realize the zero-voltage switching and the reason of duty-cycle loss is emphatically argued.
不需要任何辅助开关或无源谐振网络，变换器就可在双向变换工作中实现零电压开关。
Without the need of any auxiliary switches or complex passive resonant network, the converter can achieve ZVS in both forward and backward modes.
通过采用推挽变压器和两个附加的二极管，该变换器可以实现零电压开关，并且有较高的可靠性。
By using two additional diodes and a push-pull transformer, this converter achieves not only ZVS of all active switches but also high reliability.
研究采用正负斜率交替的锯齿载波，成功地解决了主电路在任何电压矢量下都能实现零电压开关动作；
The saw-tooth carrier waves with positive or negative slope alternately are studied and applied into the three-phase PWM inverter soft-switching operation.
三电平桥臂的开关管的电压应力为输入电压的一半，可在宽负载范围内实现零电压开关；两电平桥臂的开关管的电压应力为输入电压，它们利用变压器的漏感来实现零电压开关；
The voltage stress of the switches of the three-level leg is the half of the input voltage, and the switches can realize ZVS in a wide load range.
通过对这种变换器的工作原理分析可知，主辅开关管都可以实现零电压或零电流开关，且电压、电流应力较小。
Through the operational principle it can be verified that all the switches are capable of achieving ZVS or ZCS condition, and the voltage and current stress are relatively low.
这种高频电源较好地实现了开关管的零电压（ZVS）软化，得到了较宽的调功范围。
The high frequency inverter used here can achieve zero voltage soft switching (ZVS) and wide power regulation range.
提供了该变换器两个死区时间的设计方法，从而保证了开关电压应力限制在输入电压的一半，同时满足每个开关零电压关断的实现条件。
The design consideration for two dead times is presented to assure that voltage stress for main switches is within half of input voltage and ZVS for each main switch is achieved.
该变换器中的开关管实现了在零电压下关断，而且其中两个开关管在零电流零电压下开通。
All switches are turned off with zero voltage switching, and the two switches of them are turned on with zero current and zero voltage switching.
利用有源钳位电路实现主变压器铁心对称复位，功率开关在宽输入电压和宽负载电流范围内零电压开关。
By using an active clamp circuit, the power transformer core is symmetrically reset. Zero voltage switching conditions are achieved over a broad input voltage and output current range.
脉冲电源的形式和用途有多种，文章研究了一种软开关直流脉冲电源，主开关管可以实现零电流开通、零电压关断；
This paper research a soft-switch DC pluse power supply. The turning on of main switch can achieve ZCS, and turning off is ZVS.
移相控制全桥变换器能够实现开关管的零电压开关，但滞后桥臂难度很大。
Phase shifted converter realizes zero voltage switching (ZVS) with the use of leakage inductance of the main transformer, however, the realization of ZVS for lagging bridge leg is difficult.
它可使原边所有的开关管零电压导通、副边的整流管零电流关断，因而可实现极高的转换效率。
In resonant converter all switches are working on the ZVS and the secondary diodes are working on the ZCS, so we can achieve high efficiency.
而通过移相控制方式，利用开关管的结电容则实现了滞后管的零电压开关。
With the use of phase-shifted control mode and the junction capacitor of the switches, the lagging switches can realize ZVS under any load.
移相控制全桥变换器能够实现开关管的零电压开关，但滞后桥臂难度很大。
Phase - shifted converter realizes zero - voltage - switching with the use of leakage inductor of the main transformer, however, the realization of ZVS for lagging bridge leg is difficult.
通过设置死区时间实现开关功率器件的零电压开通与关断，利用该变换器研制出GTO门极驱动用电源。
The turn-on and turn-off of power devices under zero voltage are realized with addition of dead time. The power supply for GTO gate driver is developed by use of the converter.
此变流器采用一个耦合电感可在整个线路和负载范围实现主开关的零电压开关。
A coupled inductor is applied to implement ZVS of the primary switches for line and load.
研制了电流模式零电压零电流开关TIG焊机，其超前臂实现了零电压开关，滞后臂实现了零电流开关。
A current mode zero-voltage and zero-current switching (ZVZCS) inverter TIG welding machine is developed in this paper, which realizes ZVS for the leading leg and ZCS for the lagging leg.
在有源箝位正激电路中，为了使主开关管和辅助开关管能较容易地实现零电压开通条件，提出了一种改进型有源箝位正激拓扑方案。
To briefly introduce the operating mechanism for the soft switch of the active clamping and forward and flyback combination of ZVS-PWM with the single-end circuit topology.
在有源箝位正激电路中，为了使主开关管和辅助开关管能较容易地实现零电压开通条件，提出了一种改进型有源箝位正激拓扑方案。
To briefly introduce the operating mechanism for the soft switch of the active clamping and forward and flyback combination of ZVS-PWM with the single-end circuit topology.
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