Patent ID: 11929668
Assignee: KYOSAN ELECTRIC MANUFACTURING CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A DC pulse power supply device, comprising:
a DC power supply unit;
a pulsing unit that comprises a series circuit composed of a DC reactor and a switching element, and generates a pulse output from a DC voltage in the DC power supply unit;
a voltage clamping unit that comprises a capacitor connected in parallel to the DC reactor of the pulsing unit, and uses a capacitor voltage in the capacitor to limit a voltage across the DC reactor to a clamp voltage; and
a control circuit unit that controls an ON/OFF operation of the switching element of the pulsing unit, wherein
the control circuit unit comprises:
a switching cycle control unit that controls a duty of a switching operation of the switching element; and
a suspension/restart control unit that controls suspension and restart of the switching operation of the switching element,
the suspension/restart control unit performs the following operations,
at the time that the DC reactor reaches magnetic saturation:
bringing the switching element into an OFF state to suspend the switching operation; and
applying the DC voltage to a load during a suspension time of the switching element, and resetting the magnetic saturation by using a DC reactor voltage which is clamped to the capacitor voltage, and
at the time that the magnetic saturation of the DC reactor is reset:
restarting a drive operation of the switching element.