单向晶闸管的电压过零触发可利用简单的晶体管电路。
The zero voltage trigger for thyristor can be realized with simple transistor circuit.
采用了频谱分析法和电压过零点控制相应的滤波支路投入运行。
Frequency spectrum analysis and the crossing point of voltage are adopted to control the corresponding filter branch switch.
该功率因数补偿器具有相负载分别补偿，补偿电容在电压过零时投切，各相功率因数和电流值分时显示等特点。
This compensator can compensate phase loads respectively and display all the phase power factors and current values in a time-split way.
利用电力系统三相交流电压过零点和高速数字频率合成器解决了跳频系统中同步和快速频率合成的两个关键问题。
The zero-crossings of the AC voltage and digital frequency synthesizer are used in solving the two main problems in frequency hopping system-synchronization and fast frequency synthesizing.
该文基于TCSC的开关函数模型并借助MATLAB仿真工具，提出了研究电容电压过零点特性的数字仿真方法。
Based on switch function model of TCSC and MATLAB, the digital simulation method in researching zero-crossing point characteristic of the capacitor voltage is put forward.
提出一种采用控制简单的谐振极零电压过渡(RPZVT)软开关逆变器的异步电机直接转矩控制新方案。
A scheme of direct torque-control system of asynchronous machine with a simple Resonance Pole Zero Voltage Transfer (RPZVT) inverter is proposed.
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.
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.
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.
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.
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