采用德国西门子IGBT变频,电压反馈串联谐振电路。变换效率高达97.5%以上。
Adopt IGBT frequency conversion of German Siemens and voltage feedback series resonance circuit. The conversion efficiency is reaching up to above 97.5%.
介绍一种旨在提高信号传输可靠性而设计的信号转换电路,它将电压信号变换成电流信号进行传输。
This paper introduces signal switchover circuit that transforms voltage signal to current signal in order to improve signal reliability.
采用谐振电路和PWM开关结合,组成电压谐振开关,实现DC—D C功率变换。
In order to make DC DC power converted, voltage resonant switch is combined by resonant circuit and switching PWM.
新加入的是直流路网中用斩波器和中间电路电压可调的功率变换装置。
Major innovation is the power conversion with chopper and controlled converter DC-link in direct current networks.
检测电路采用阻抗—电压变换法,检测涡流探头阻抗变化。
Detection circuit use impedance - voltage transformation method to detect changes in eddy current probe impedance.
功率变换器主电路采用电压电流双闭环瞬时值反馈控制方式,电容电压和电流瞬时值控制环提高了系统的稳定性、硬特性、稳态特性及动态特性。
The voltage and current real-time feedback control method is adopted, which improves the stability, the stiffness, the static characteristics, and the dynamic characteristics of the system.
大功率直接变频电路的基本功能是实现频率和电压的直接变换,被应用于航空电源和调速电源中。
The large power AC-AC frequency-changers are used in the aircraft power source and AC speed-regulation systems to convert frequency and voltage directly.
受寄生元件的影响,DC - DC升压变换器的输出电压和功率传递效率受到限制,电压举升技术为改善电路特性提供了好方法。
Since the effect of parasitic elements limits the output voltage and power transfer efficiency of DC-DC converters, voltage lift technique opens a good way to improve circuit characteristics.
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.
针对矩阵变换器调制方式的特点,提出了基于输出电压误差函数分析的矩阵变换器离散调制技术,推导了基于时间离散和差分原理的电路方程。
Based on the output-voltage error function, a novel time-discrete modulation technique is proposed for matrix converters (MCs) and time-discrete difference equations of a MC circuit are derived.
对工作模态进行分析,给出了变换器在各个工作模态的等效电路以及谐振槽电压和电流的时域表达式。
The equivalent circuits and the expression of the current and the voltage of the resonant thank are shown with time-domain analysis.
分析了模拟电压一频率比变换电路原理,给出了元件参数的设计要求及其计算方法。
After the analyses of circuit theory of analogue voltage-to-frequency ratio converter, the design requirement of component parameters and the calculation method are presented.
为改善电能质量,提出了一种由PWM交流斩波变换器和变压器组成的动态电压恢复器电路拓扑。
The topology of dynamic voltage restorer is proposed for power quality improvement, which is composed of PWM AC chopper and power transformer.
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.
程控放大器能够把这样的信号变换成与测量或控制电路相匹配的输入电压。
Programmed amplifier is able to convert these signals into input voltage which match with testing circuits.
然而,由于漏感影响,反激变换器功率开关管关断时将引起电压尖峰,必须用钳位电路加以抑制。
However, due to leakage effects flyback converter power switch off when the voltage spike caused by the need to be inhibited by clamping circuit.
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.
该电机驱动电路还包括耦合到输入装置、第一能量存储装置、双向DC-DC电压变换器的耦合系统。
The motor drive circuit further includes a coupling system coupled to the input device, to the first energy storage device, and to the bi-directional DC-to-DC voltage converter.
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;
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.
提出了一种新颖的移相控制零电压开关三电平变换器,分析了该变换器的工作原理,并给出了移相控制电路和驱动电路。
This paper proposes a novel phase-shifted zero-voltage-switch three-level converter. The operation principle of this converter is analyzed, and its phase-shifted circuit and drive circuit are given.
提出了一种新颖的移相控制零电压开关三电平变换器,分析了该变换器的工作原理,并给出了移相控制电路和驱动电路。
This paper proposes a novel phase-shifted zero-voltage-switch three-level converter. The operation principle of this converter is analyzed, and its phase-shifted circuit and drive circuit are given.
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