The signal power supply that this thesis proposed is a frequency variable power source used in test field. This thesis concentrates on analysis and designing the nuclear part: Inverter.
本文的信号电源就是变频电源在测试领域的应用，本文就信号电源的核心逆变器部分做了详细的分析和设计。
Shield current source is controlled by using variable power circuit, this greatly improves dynamic range.
深、浅屏流源采用可变功率控制，提高了仪器的动态范围。
The high-power IGBTs are adopted to design the dual inverter arc-welding power source for variable polarity pulse MIG welding.
提出采用大功率IGBT设计变极性脉冲MIG焊双逆变弧焊电源。
The AC-DCAC voltage source inverter composes the main circuit of this variable frequency system and CPLD is the logic control device of the power device (IPM).
该变频调速系统主电路采用交-直-交形式，以(CPLD)作为调速系统逆变电路功率开关器件(IPM)的逻辑控制器件。
The controlling system of the variable polarity power source for TIG welding by microprocessor-80C552 is developed with flexible setting time and scope of the DCEP and DCEN.
开发了变极性TIG焊电源的微机控制系统，通过调节输出电流的正负半波时间、幅值获得不对称方波。
A new kind of linear trigger circuit made up of integrated circuit is described. The trigger circuit is used in rectification circuit under the condition of the variable frequency of power source.
叙述了一种新型的由集成电路构成的线性触发器，该触发器用于在电源频率可变条件下工作的整流电路。
The main function of variable frequency power source is to change the current AC power to the needed stable pure power.
变频电源的主要功用是将现有交流电网电源变换成所需频率的稳定的纯净的正选拨电源。
The main function of variable frequency power source is to change the current AC power to the needed stable pure power.
变频电源的主要功用是将现有交流电网电源变换成所需频率的稳定的纯净的正选拨电源。
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