DC POWER SOURCE, AND DC POWER SOURCE CONTROL METHOD

Title:

DC POWER SOURCE, AND DC POWER SOURCE CONTROL METHOD

Document Type and Number:

WIPO Patent Application WO/2015/045197

Kind Code:

A1

Abstract:

This DC power source for supplying DC power to a plasma generating device has a simple and more compact device configuration for forming a high voltage for generating plasma discharge. A process is repeated multiple times in which a short-circuit current is passed for a very short time to a voltage-type step-down chopper unit provided in the DC power source and the energy is stored in a reactor; the energy stored in the reactor is discharged to an output capacitance, gradually boosting the output voltage, thereby boosting the output voltage to an ignition set voltage. The short-circuit current is formed using a switching element in a step-up circuit provided in the DC power source. By repeatedly boosting the voltage of the output terminal by storing and discharging short-circuit currents, the voltage at the output terminal of the DC power source is boosted to the ignition set voltage.

Inventors:

YUZURIHARA ITSUO (JP)
KODAMA SHINICHI (JP)
ADACHI TOSHIYUKI (JP)

Application Number:

PCT/JP2013/084823

Publication Date:

April 02, 2015

Filing Date:

December 26, 2013

Export Citation:

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Assignee:

KYOSAN ELECTRIC MFG (JP)

International Classes:

H05H1/46; C23C14/34; H02J1/00; H02M3/155; H02M3/158; H02M1/00

Foreign References:

JP2002173772A	2002-06-21
JP2006006053A	2006-01-05
JP2010225308A	2010-10-07
JP2005050711A	2005-02-24
JP2010255061A	2010-11-11
JPH11229138A	1999-08-24
JP2002173772A	2002-06-21
JP2012072854W	2012-09-07

Other References: