主电路以反并联的晶闸管作为控制开关，控制焊接用的电阻点焊变压器通电与否。
In the main circuit, the inverse parallel couple SCRs (silicon-controlled rectifier) are used as a electric switch, switching the transformer of resistance spot welding.
用于第一开关和第二开关中的每一个的相关联的反并联二极管，其配置成当与该二极管相关联的开关无效时，提供电通路；
For each of the first and second switches, an associated anti-parallel diode is configured to provide an electrical path when the switch associated with the diode is inactive.
分析了传统的PWM_ON调制方式对无刷直流电动机在非换相期间由于截止相的反并联二极管续流而导致转矩脉动的原因。
The torque ripple caused by diode freewheeling of the inactive phase during non-commutation state of PM brushless DC motor(BLDCM)when using the PWM_ON type of pulse width modulation was analyzed.
它的关键思想是将改进结构的GTO与反并联二极管和门极驱动电路集成在一起，再与其门极驱动器在外围以低电感方式连接。
Its key idea is that integration of GTO with improved structure, antiparallel freewheeling diode and gate drive circuit, then connects its gate drive by low inductance.
本文研究了三相感应电动机软起动器，主电路由三组反并联的晶闸管构成。通过控制晶闸管的触发角，可降低三相感应电动机定子电压，从而达到抑制起动电流冲击的目的。
The principle of the soft starter is reducing the voltage applied to the stator of the induction motor by control the triggering angle of the thyristors in order to limit the starting current surge.
分析了该类机构的拓扑结构、并联机构的运动学反解，并对滚法推拿头进行运动学设计与分析。
It is analyzed the topology structure of the robot, the kinematic solutions of the parallel mechanism, the kinematic properties of the rolling part.
提出一种基于螺旋系线性相关性和约束反螺旋概念的空间并联机器人输入原动件选取合理性的判别方法。
Based on the concepts of reciprocal screws and their linear correlativity, a detecting method of input interference in a spatial parallel manipulator is presented.
提出一种采用8 -PSS冗余输入的6自由度并联地震模拟器，该地震模拟器具有唯一的位置反解。
The paper presented a 6-dof parallel earthquake simulator with 8-pss redundant input which has a unique inverse solution.
首先用反螺旋分析了3 -RRRRR并联机构在初始位置下和在一般情况下的瞬时运动特性。
Firstly, utilizing the reverse screw, the characteristics of instantaneous motion of 3-RRRRR parallel mechanisms under its initial position and under the general condition were analyzed.
对6 -DOF并联机器人的位置正解进行了研究和分析，通过位置反解的求解思路来解位置正解的问题。
This paper studies and analyzes the 6-dof parallel robot position forward solution, solves the forward solution problem through the inverse solution method.
本文分析了两路交错并联双管反激变流器的工作模式，采用开关平均法建立了电流断续模式（DCM）下的变流器小信号模型。
The operation modes of the interleaved double-transistor flyback converter have been analyzed. The DCM small signal AC model using the averaged switch method has been built up.
文中介绍了NCP1205的工作原理和主要特点，并将其应用于交错并联反激电路中，大大减小了开关管的开通损耗，减小了输出电压纹波，提高了电路效率。
NCP1205 is applied to the interleaving paralleled backward circuit to reduce the switch tube power loss and output voltage ripple, to enhense the circuit efficiency.
文中介绍了NCP1205的工作原理和主要特点，并将其应用于交错并联反激电路中，大大减小了开关管的开通损耗，减小了输出电压纹波，提高了电路效率。
NCP1205 is applied to the interleaving paralleled backward circuit to reduce the switch tube power loss and output voltage ripple, to enhense the circuit efficiency.
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