针对精密电子设备中所要求的高电压、低电流的小功率电源系统,设计制作了一种高压开关电源。并对高压电源的响应特性进行了测试。制作出的电源系统具有体积小、稳定性好、响应速度快等特点。 关键词:高压电源;PWM 脉冲调制;开关电路 Design of a High-Voltage Switching Power Supply WANG Chao (Hunan Institute of Engineering, Xiangtan, 411101, China) Abstract: In order to satisfying the requirement of precision electronic systems for power supply systems, a high-voltage switching power supply was designed and fabricated. Its response performance was analyzed. The power supply has advantage of small volume, high reliability and fast response speed. Key words: High-voltage power supply;PWM;Switching power circuit