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buck电路
相关语句
  buck circuit
    The Efficiency Research of a ZVT-PWM BUCK Circuit
    ZVT-PWM BUCK电路效率的研究
短句来源
    In the end of the paper, a improved two-phases ZVT-PWM BUCK circuit is brought forward base the same principle.
    最后为了适应大功率应用的场合,根据相同的原理对原有的一种两相ZVT-PWM BUCK变换器做出改进,提出一工作效率更高,并且适合于大功率应用的两相ZVT-PWM BUCK电路
短句来源
  buck converter
    Low temperature operation was expected to result in lower switching losses,higher frequency,and improvement in the safe-operating area (SOA). At last, a 25kHZ,50V/20V,200W BUCK converter was designed , the active and passive components used in the circuit and the conversion efficiency of the converter were both tested in 77K and 300K. It was found that the operated efficiency of the converter improved about 5% in 77K.
    在器件研究的基础上,研制了200W、50V/20V、开关频率25kHZ 的BUCK 电路,完成了电路中有源和无源器件常温和低温下的测试比较,实验中分别对电路工作于开环和闭环状态在常温和低温下的转换效率进行了测试,从测试结果可以看出,电路的工作效率在低温环境下提高了5 个百分点左右。
短句来源
    On the base of the analyses of the basic Buck converter, the operation principle and the circuit features of the traditional ZVT PWM Buck converter are analyzed theoretically, and the converter is simulated with computer. To solve its problems, an improved ZVT PWM Buck converter is presented.
    在分析基本的Buck变换器的基础上,对典型的ZVT PWM Buck变换器的工作原理和性能特点进行了理论分析和仿真研究,并针对其存在的问题,提出了一种改进型ZVT PWM Buck电路
短句来源
    Moreover, based on the study above, a novel ZCS PWM Buck converter is proposed.
    在以上分析的基础上,进而提出了一种新型零电流开关PWM Buck电路
短句来源
    The improved ZVT PWM Buck converter adds a snubber capacitor and a diode being in series with the resonant inductor, to overcome the problems of the hard switching of auxiliary switch and the internal circulating current that exist in the traditional ZVT PWM Buck converter.
    对改进型ZVT PWM Buck电路,通过增加缓冲电容和与谐振电感串联的二极管,来克服原电路存在的辅助开关硬关断和由于开关管寄生参数产生的内部循环电流的缺点。
短句来源
    The auxiliary resonant cell of the novel ZCS PWM Buck converter offers the zero-current-switching condition for the main switch without additional current stress and conduction loss. Meanwhile, its auxiliary switch also achieves the soft turn-on and turn-off.
    对新型零电流开关PWM Buck电路,其辅助谐振单元为主开关创造零电流开关的条件,同时不增加主开关电流应力和导通损耗,且辅助开关也能在软开关条件下完成开通与关断。
短句来源
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  相似匹配句对
    The Efficiency Research of a ZVT-PWM BUCK Circuit
    ZVT-PWM BUCK电路效率的研究
短句来源
    Digital ICs
    数字电路
短句来源
    Circuit Classical
    电路经典
短句来源
    The Analysis of AC BUCK-BOOST Circuit Based on ARM Control and Its Design
    基于ARM控制的交流BUCK-BOOST电路分析与设计
短句来源
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  buck converter
The operation principles and a detailed steady-state analysis of a PWM buck converter implemented with this snubber cell are presented.
      
The theoretical analysis is verified with a prototype of a 5-kW and 50-kHz insulated gate bipolar transistor-(IGBT)-PWM buck converter.
      
Nonlinear and nonsmooth dynamics in a DC-DC Buck converter: Two experimental set-ups
      
In this paper we focuss on the experimental side of a DC-DC Buck converter controlled with two different strategies: classical Pulse Width Modulation (PWM) with a ramp and a more recently described Zero Average Dynamics (ZAD).
      
Using the example of the DC-DC buck converter, the formulation of the measure differential inclusions, state reduction and their numerical solution using the time-stepping method is shown for the flux approach.
      
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Advantages and disadvantages of conventional conversion Boost Buck circuits are analyzed.Based on Boost Buck converter,a novel control method is proposed.A 8kW IGBT DC/DC converter using this new control mode is developed with 80C196KC.Experiment results show this method can reduce the switching losses and enhance the efficiency and reliability.

分析了常见的几种升降压变换电路的优缺点,在BoostBuck 电路基础上提出了一种新型的升降压变流控制方案。采用此方案研制了一个由80C196KC控制的8k WIGBTDC/DC 变换器,实验结果证明,此方案可降低开关损耗,明显提高效率和可靠性。

This paper presents a soft switching method of the Buck converter.Soft switching can be achieved if synchronous rectifier is applied and inductor current is designed to be reversed in every period. According to different soft switching conditions,the conception of strong switch and week switch is presented.Design considerations of soft switching condition for strong switch and week switch are also proposed.A 200 kHz prototype of 48 V input,19 V output,whose efficiency is 96.1%,is built to verify the strategy....

This paper presents a soft switching method of the Buck converter.Soft switching can be achieved if synchronous rectifier is applied and inductor current is designed to be reversed in every period. According to different soft switching conditions,the conception of strong switch and week switch is presented.Design considerations of soft switching condition for strong switch and week switch are also proposed.A 200 kHz prototype of 48 V input,19 V output,whose efficiency is 96.1%,is built to verify the strategy.

提出了一种Buck电路软开关实现方法,即同步整流加上电感电流反向。根据两个开关管实现软开关的条件不同,提出了强管和弱管的概念,给出了满足软开关条件的设计方法。通过一个48V输入,19V/5A输出,开关频率为200kHz的同步Buck变换器样机,验证了上述方法的正确性,其满载效率达到了96.1%。

A hybrid model is given for power electronic circuits based on hybrid system theory. Based on this model, a parameter identification method that can be applied in fault diagnosis is presented. In this paper, the hybrid models of six kinds of DC/DC circuits are presented. The validity of this method is validated by experiments in which the inductance, capacitance and the ESR of capacitance of Buck circuits are identified.

基于混杂系统理论构建了电力电子电路的混杂系统模型,并基于该模型提出了电力电子电路参数辨识的一种方法,可应用于故障趋势判断和预知维护。文中给出了6种DC/DC电路的混杂系统模型,并以Buck电路的滤波电感、滤波电容及其等效串联电阻的参数辨识为例,通过实验验证了这一方法的有效性。

 
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