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四川蓉威电子技术开发公司最近推出三组400Hz的电源系列新产品。该产品是以单片机控制为中心、大功率晶体管模块IGBT为功率器件,采用当今先进中频电路方案设计的电源系列产品,现已投放市场。该系列产品的原理设计有如下特点:电源由功率级、控制电路及输出级三部分组成。功率级由桥式整流器和绝缘栅双极型三相IGBT逆变器组合,逆变器是由控制电路有规律地控制其主开关的通与断,可以得到所需频率的三相交流输出,所选用的逆变器开关能在150％的过载情况下运行1分钟。控制电路主要由微处理器、控制接口、驱动电路、检测电路、保护电路及操作按键、数码显示器等组成。控制接口主要由单
Sichuan Rong Wei Electronics Technology Development Company recently introduced three groups of 400Hz power supply series of new products. The product is based on single-chip microcomputer control, high-power transistor IGBT modules for power devices, using today’s advanced IF circuit design power supply products, is now on the market. The principle of the product design has the following characteristics: Power from the power stage, the control circuit and the output stage of three parts. The power stage is composed of a bridge rectifier and an insulated gate bipolar three-phase IGBT inverter. The inverter is controlled by the control circuit to control the on and off of its main switch regularly to obtain the three-phase AC output of the required frequency, The selected inverter switch can operate for 1 minute at 150% overload. Control circuit mainly by the microprocessor, control interface, drive circuit, detection circuit, protection circuit and operation keys, digital displays and other components. Control interface mainly by a single