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    • 10. 发明申请
    • DC POWER SUPPLY
    • 直流电源
    • US20120224396A1
    • 2012-09-06
    • US13367653
    • 2012-02-07
    • Yuichiro NOZAKITetsuo KojimaMasafumi Makino
    • Yuichiro NOZAKITetsuo KojimaMasafumi Makino
    • H02M3/335
    • H02M3/3378Y02B70/1433
    • In a DC power supply in which a DC power source and a transformer are connected via a power conversion circuit and a secondary winding of the transformer is connected to a load via a rectifier diode bridge and a filter circuit to supply power to the load, a resonance reactor is provided on an output side of the transformer, a resonant switch circuit including a parallel circuit of a diode and a semiconductor switch and a resonant capacitor is connected in parallel to the rectifier diode bridge and a snubber circuit including a snubber capacitor, a snubber diode and a diode for discharge is connected to a serial resonant circuit including the resonance reactor and the resonant capacitor in the resonant switch circuit to absorb a surge voltage.
    • 在其中直流电源和变压器通过功率转换电路连接的直流电源和变压器的次级绕组经由整流二极管桥和滤波电路连接到负载以向负载供电, 谐振电抗器设置在变压器的输出侧,包括二极管和半导体开关的并联电路和谐振电容器的谐振开关电路并联连接到整流二极管桥和包括缓冲电容器的缓冲电路, 缓冲二极管和用于放电的二极管连接到包括谐振电抗器和谐振开关电路中的谐振电容器的串联谐振电路以吸收浪涌电压。