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一般常用直流稳压电源,分为线性型和开关型两大类。随着微机的发展国内外出现了单片机控制线性型和开关型两种稳压电源。线性型具有高稳定度、低纹波和低噪声特点,但其体积大、效率低;开关型具有效率高、重量轻和小型化特点,但其纹波大。为了进一步提高稳压电源综合指标,在总结上述两种电源特点的基础上,研制了一种新型结构稳压电源——单片机控制的开关型与线性型串联的直流稳压电源。 1.电源的主要技术参数 输入电源电压为三相交流380V、50Hz,电压波动范围为+10％～-15％;输入电流为交流10A;输出电压为直流77、110和130V;输出电流为直流0～30A;电压稳定度<1％,电源电压范围为+10％～-15％,额定负载电流变化为10％～
Commonly used DC power supply, divided into linear and switch two categories. With the development of microcomputer appeared at home and abroad appeared monolithic integrated circuit control and switch type two kinds of regulated power supply. Linear type has high stability, low ripple and low noise characteristics, but its volume is large, low efficiency; switch with high efficiency, light weight and miniaturization, but its large ripple. In order to further improve the integrated power supply regulation, based on the above two power characteristics, a new type of structured power supply - a single-chip controlled switch-mode and linear series DC power supply was developed. 1. The main technical parameters of the power supply The input power supply voltage is three-phase AC 380V, 50Hz, voltage fluctuation range is + 10% ~ -15%; input current is AC 10A; output voltage is DC 77,110 and 130V; output current is DC 0 ~ 30A; Voltage stability <1%, the power supply voltage range of + 10% ~ -15%, rated load current change of 10% ~