摘要
电源技术的发展方向之一是并联运行分布电源系统,以便通过N+1冗余获得故障容错及冗余功率,并且建立模块式分布电源系统,以增大总负载电流。采用双端驱动集成芯片TL494输出PWM脉冲控制主开关的导通来控制电压输出,以ATmega128单片机为核心,实现大电流时自动由单电源供电投切到双电源并联均流供电,增强了开关电源的带负载能力和提高电源的供电效率。
The N＋1 redundant fault tolerant and redundant power,as well as modular power distribution system the total load current increases.This design uses double-ends driven integrated microchip-TL494 generating PWM pulses to control main switch on-voltage output.The whole system based on the ATmega128 microcontroller core controls big electric current by the single power supply automatically switching to dual power supply parallel current sharing power supply,enhancing the load capacity of a switching power supply and power supply efficiency.
出处
《工业控制计算机》
2013年第1期126-127,共2页
Industrial Control Computer
