The new type DC solid state relay is a kind of new contactless switching device, with the new type IGBT and power field effect tube as the core and composed completely by solid state electron devices.
新型直流固态继电器是一种以新型器件IGBT以及功率场效应管为核心的，全部由固态电子器件组成的新型无触点开关器件。
Operating principle of power factor compensating device for 8k electric locomotive is briefly described as well as its parameter selection, switching on and off control.
本文概述了8K机车功率因数补偿装置的工作原理、参数选择及投切控制。
Full bridge topology was used in the main circuit, IGBT was used as power switching device, and micro-crystal core was used in mid-frequency transformer.
其主电路采用全桥式拓扑结构，以IGBT管为功率开关器件，中频变压器使用微晶磁心。
The paper analyzes the phase-lock technique of serial resonant inverter with power MOSFET as switching device.
研究了以功率MOSFET为开关管的串联谐振逆变器的频率跟踪问题。
The single-chip switching mode power supply based on TOP221Y device is introduced in the paper. The performance characteristic and operation principle is analyzed.
介绍了基于TOP221Y器件设计实现的单片开关电源，分析了其基本的性能特点和工作原理。
A device which has an extremely high input impedance, low switching speed and low power consumption.
一种高输入阻抗、低开关速度及低功耗的半导体器件。
The device has a higher efficiency than the conventional switching power supply with PWM, and it is almost load-independent.
这类开关电源的效率比常规的脉冲宽度调制（PWM）高，且基本上与负载无关；
By linking the DC relay contactor with power electronic device, the DC hybrid switch apparatus without switching arcing was designed and accomplished.
采用直流开关电器与电力电子器件相结合方式，设计并实现了能够实现无弧通断的直流混合开关电器。
Transfer switch a transfer switch is an electrical device for switching loads between alternate power sources.
转换开关转换开关是能够把负载在备用电源和常规电源之间进行转换的电气设施。
Working in a 600v DC power supply system, the type ZDB battery charger USES new power electronic insulated-gate bipolar transistors (IGBT) as switching device and adopts PWM control technics.
ZD B型直流电源变换器是工作在直流600v供电系统的变流装置。该装置以新颖电力器件IGBT作为开、关器件并采用PWM控制技术。
This paper describes its advantages, introduces the current - mode control integrated device for switching power supply, and gives a experimental circuit.
本文就其优点作了叙述；对开关电源电流型控制集成器件作了简介；并给出试验电路。
Full bridge topological structure, the frequency of 22khz, IGBT switching power device were adopted for inverter.
逆变电路选用全桥式电路拓扑结构，逆变频率选为22khz，并以IGBT作为主电路的开关功率元件。
The power source device (100) comprises a switching regulator (30), a regulator (32), a control circuit (34) and a short-circuit detect circuit (36).
该电源装置（100）包括：开关调节器（30）、调节器（32）、控制电路（34）、以及短路检测电路（36）。
A power converter circuit (3) drives a switching device by the pulse-width modulated wave for converting a direct current into the three phase alternating current.
电力变换器主电路部（3），其根据该脉冲宽度调制波对开关元件进行驱动，将直流电压转换为三相交流电压；
The device makes the generator' s reactive power distribution and capacitors switching together, rationally adapts the reactive power involved in the system.
将发电机无功分配和电容器投切相结合，对系统中的无功进行合理调节。
The device makes the generator' s reactive power distribution and capacitors switching together, rationally adapts the reactive power involved in the system.
将发电机无功分配和电容器投切相结合，对系统中的无功进行合理调节。
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