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.
电感电流断续工作的反激式变换器一次侧开关可工作于硬开关或准谐振(或谷值开关或零电压开关)模式。
The flyback converter running in discontinuous conduction mode can be operated in hard switching or quasi resonant (or valley switching, or ZVS) mode regarding the primary side switch.
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.
对于大功率的GTO逆变器,提出了一种零电压转换(ZVS)的三电平辅助谐振变换极逆变器(ARCPI)。
A zero-voltage-switching (ZVS) three-level auxiliary resonant commutated pole inverter (ARCPI) is presented for high power GTO ones.
介绍了一种新型的零电压转换软开关技术在大升压比PW M直-直变换器上的应用。
In this paper, a novel Zero voltage Transition soft switching techniques have been investigated for a PWM DC DC large boost conversion application.
提出了一种新型的零电压开关全桥三电平直流变换器。
This paper presents a novel zero voltage switching full bridge three level converter.
本文提出了一种新型的零电压零电流开关pwm推挽三电平直流变换器,其中开关管的电压应力为输入电压。
This paper presents a novel zero voltage and zero current switching (ZCS) PWM push pull three level converter in which the voltage stress of switches is input voltage.
仿真和实验结果表明:所提出的变换器输入电流和输出电压为正弦,谐波小且输入功率因数可控,并可实现零电压换流。
Simulation and experimental results show that the proposed converter has sine wave input current and output voltage, low harmonic content, adjustable power factor, and zero voltage commutation.
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.
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.
介绍一种带缓冲电路的新型零电压过渡pwm (ZVT- PWM)软开关boost变换器。
It introduces a new zero voltage transition PWM (ZVT - PWM) soft switching BOOST converter with a snub circuit.
提出了一种新型的全桥移相零电压零电流变换器拓扑结构。
A novel full bridge (FB)-phase shift (PS)-zero voltage zero current switching (ZVZCS) converter is proposed.
研究了降压型和正激型两种类型的半坡零电压开关(ZVS)多谐振变换器(mrc)。
Two types (buck and forward) of the half wave zero - voltage-switching (ZVS) multi-resonant converters (MRCs) are investigated.
提出了一种零电压软开关高功率因数变换器电路。
The paper presents a kind of zero-voltage soft-switching unity power factor converter.
介绍提高我国弧焊逆变电源可靠性的途径以及零电压、零电流软开关变换研究现状。
Ways to improve the reliability of arc welding inverter power and the research condition of zero voltage, zero current soft switch inverter are introduced.
介绍了一种反激式变换器零电压关断缓冲电路,同时分析了其工作原理。最后简要地介绍一下其设计方法。
An introduction to a type of lossless snubber circuit applicable to flyback converter was given, and its working principles were analyzed.
最后,本文还提出了另外几种零电压零电流开关PWM推挽三电平直流变换器。
Several zero voltage and zero current switching PWM push pull three level converters are proposed.
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.
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.
介绍了零电压谐振dc—dc变换技术,分析了谐振变换原理。
The technology of zero voltage resonant DC-DC transform is developed, the principle of resonant transform is presented.
结果表明,变换器有良好的零电压软开关特性和负载特性,较高的功率转换效率和较低的电磁辐射。
The results show that the converter have good ZVS and a special property of loading character, and it has a higher efficiency of power conversion and lower EMI.
与基本ZVS三电平变换器相比,该变换器具有辅助网络简单、实现零电压范围宽、副边无电压过冲和占空比丢失以及控制方式灵活等优点。
It has many remarkable advantages such as simple auxiliary circuit, realizing ZVS in the wide load range, no voltage spike and surge of the transformer secondary side and easy to be controlled.
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.
论述了零电压过渡PWM正激变换器的原理与设计。
The principle and design of a zero voltage transition PWM forward converter are presented in this paper.
分析了一种新颖的零电压零电流(ZVZCS)开关之电平变换器,以及功率晶体管的驱动电路。
A novel zero-voltage and zero-current switching (ZVZCS) three-level converter, and the drive circuit of the transistor were analyzed.
最后,通过仿真分析和对50V/20A样机的调试实验,验证了零电压零电流移相控制PWM三电平直流变换器的工作原理。
Finally, the operation principle of Zero-voltage and Zero-current-switching PWM three-level converter is validated by the simulation analyze and the debugging experiment of 50V/20A sample device.
移相全桥直流变换器的软开关技术分为零电压开关(ZVS)和零电压零电流开关(ZVZCS)两大类。
There are two soft-switch schemes of phase-shift full-bridge DC/DC converter: zero-voltage switching (ZVS) and zero-voltage zero-current switching (ZVZCS).
阐述了零电压开关技术(ZVS)在移相全桥变换器电路中的应用。
The application of the ZVS switching technique on full-bridge converter is discussed.
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.
死区时间的合理选择是保证移相定频控制的全桥零电压开关DCDC变换器零电压开关状态的必要条件。
Proper selection of the switching dead time of the lagging arm is necessary for ensuring the ZVS operation of the phase shifting FB ZVS DC DC converter.
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