zero voltage switch meaning in English
零电压开关
Examples
- At the end , a half - bridge dc / dc transformer with zero voltage switching ( zvs ) is presented
最后本文研究了一种半桥软开关直流变压器电路。 - In all interleaving two - transistor forward switches , zero voltage switching can be obtained which can apparently improve the power density . however the isolated boost converters need to resolve two problems
但是隔离boost变换器需要重点解决两个问题: 1 )减小功率开关关断时两端浪涌电压; 2 )隔离boost变换器的起动。 - The whole high power switch supply have four bidirectional dc / dc converters which are parallel connection . the theory of phase - shifted full - bridge zvs pwm dc / dc converter and the theory of push - pull boost converter are introduced . the methods of realize zvs ( zero voltage switching ) is studied in detail
文中介绍了移相全桥式软开关变换及推挽式dc dcboost变换的工作原理，分析了移相全桥zvs的实现和占空比的丢失，并设计了各自的控制电路和保护电路。 - A topology of asymmetrical half bridge soft switching is researched in this thesis , which has inherent zero voltage switching ( zvs ) capability and thus potentially higher efficiency by its resonating of the leakage of power transformer with the parasitic capacitances of the power mosft switches , whereas it does n ' t raise the expense of the converter these studies in the thesis have been done as follows : ( 1 ) the topology of asymmetrical half bridge is introduced , and its principle and the relation of duty cycle and input voltage and output voltage discussed , the method of eliminating the deflection magnetism is also brought forward
虽然，软开关技术能够实现功率变换器的小型化、模块化等，但是，电路变得更加复杂，使得中小功率的变换器的成本增加，往往不利于商业竞争。本文研究了一种零电压的不对称半桥拓扑结构，它可以在不增加电路成本的基础上，利用电路自身的特点，实现软开关。本文所做的主要工作如下： ( 1 )对不对称半桥主电路工作原理进行分析，给出了占空比与输出电压、输入电压的关系以及消除变压器偏磁的方法。 - The main circuit of the design in this article we used is fb zvs pwm dc / dc converter , full bridge zero voltage switching pulse width modulation dc / dc converter , which is a full bridge circuit composed of four power switches using resonance to implement zero voltage when turning - on or turning - off
本文设计的通信电源充电模块的主电路采用的是fbzvspwmdc dc变换器，即全桥零电压开关脉冲宽度调制的直流变换器，它是由4个功率开关管组成的全桥电路，利用谐振使每个开关管在零电压的条件下完成导通和关断。