single-pole switching

It consists of two basic units. The first unit is boost-type single-stage PFC converter, the second unit is soft-switching technology flyback converter.

该开关恒流源主要分为两个基本单元，前一单元为Boost型单级PFC变换器，后一单元为反激式软开关变换器。

The use for a single call of two circuits in tandem between a remote switching stage and its controlling entity.

在远程交换站及其控制实体间，串接的两条电路的一次呼叫的使用。

In practise these two switching operations can be performed in a single step.

在实践中,可以单一的步骤来执行这两个切换操作.

Research on single-stage uninterruptible DC switching power supplies with high power factor

单级不间断高功率因数直流开关电源研究

At present, the research of the single-stage power factor correction ( PFC) circuits is mostly concentrated on the application of low powers. A zero-current-switching ( ZCS) single-stage AC/ DC converter with high power factor is proposed to use in medium and high power conditions.

目前，对单级功率因素校正电路的研究大多集中在小功率应用领域，为此该文提出一种能够应用于中大功率场合、实现了零电流开关的单级高功率因数AC/DC变换器拓扑。

Using single terminal inverse excitation type converter priciple, eight independent output switching power supply is developed.

采用单端反激电流型变换器的原理，研制成多达8路独立输出的开关电源。

According to the analysis of some common input channel circuits of microprocessor multichannel temperature circular measurer, the authors present a new circuit so called "supplying current by single constant-current supply and synchronously switching with double multichannel switchers".

在分析了当前一些常见的微机多点温度巡检仪前向通道的基础上，提出一种单恒流源供电、双多路开关同步切换式前向通道新电路。

Analyzed with single power factor correction flyback switching supply of their working principle, advantages and disadvantages.

分析了带功率因数校正的单片反激式开关电源的其本工作原理, 优缺点.

Comparing with the traditional single stage video switching network, the number of crosspoints and switching units used in the three stage network is reduced substantially and the whole switching system is simplified greatly;

与传统的单级视频切换结构相比，大大减少了网络中交叉点开关数和交换模块数，简化了交换系统；

However, Due to the limitations of the single-stage converter, when the bus voltage is high and wide input voltage range, the single-stage converter is not suitable for multi-output low power switching power supply.

但是由于单级变换器自身的局限性，当电源母线电压宽输入范围时，单级变换器并不适合用作多路输出小功率开关电源的主功率拓扑。