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    • 3. 发明专利
    • Pulse laser power supply unit for
    • JP4026697B2
    • 2007-12-26
    • JP32077398
    • 1998-11-11
    • 株式会社小松製作所
    • 真生 中野
    • H02M9/04
    • PROBLEM TO BE SOLVED: To enable maintaining high energy efficiency, even when pulse laser light is extended by extending pulse energy supplied to a laser discharging part with respect to of time and flexible setting of the pulse extension, which allows the setting range of the pulse extension to be widened, SOLUTION: This power supply for pulse laser transfers electric charge energy accumulated in a charging capacitor C0, while compressing the energy with magnetic pulse in sequence via a magnetic pulse compressing circuit made up of saturable reactors SL1-SL3 and capacitors C1, C2, when a switching element SM is turned on. Then, it supplies the energy to a laser discharging part LD connected parallel to a peaking capacitor CP. It is directly connected onto a shared transfer circuit, a final magnetic pulse compressing closed circuit, that compresses the energy with magnetic pulse to transfer it to the peaking capacitor CP, as well as a final energy transfer closed circuit that causes the pulse energy from the peaking capacitor CP to flow into the laser discharging part LD. The circuit comprises a coil LL that extends the pulse energy in terms of time, and a diode D that is connected parallel to the coil LL, treats the energy transfer direction by the energy transfer closed circuit as the forward direction.