RUSH CURRENT SUPPRESSION AND INSTANTANEOUS VOLTAGE DROP COMPENSATION CIRCUIT

Japanese Patent JP2014192988

A

PROBLEM TO BE SOLVED: To suppress a rush current at connection of a load to a potential output end of a device to suppress potential reduction at a power supply input end of the device, and to compensate some instantaneous potential reduction at the power supply input end, in a device for supplying a DC current.SOLUTION: In a circuit, one end of a first coil to which a rectification element 1 is connected in parallel is applied with a potential of one polarity of an external DC. The rectification element 1 is a forward direction to the potential of one polarity of the DC. A potential at the other end of the first coil is applied to one end of a second coil. The first coil and the second coil are wound around a magnetic circuit in such a direction that magnetic fluxes generated by the first and second coils are cancelled each other, and connected in series. The first coil and the second coil are loosely coupled. Both ends of a circuit obtained by connecting in series a capacitive element to a parallel connection circuit of rectification means and the resistive element are applied with a potential difference between a potential at one end of the first coil and a potential of the other polarity of the external DC. The rectification means is in a reverse direction to the potential difference between the potential of one polarity of the external DC and the potential of the other polarity of the external DC.

HANEDA SHOJI
OKADA MINORU
WADA HARUKI
MURA FUMIO

JP2013065346A

October 06, 2014

March 27, 2013

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NTT DATA INTELLILINK CORP

H02H9/02; H02J1/00

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