Title:
SNUBBER-LESS TURN-OFF SURGE SUPPRESSING CIRCUIT, ENERGY RECOVERING METHOD AND PROGRAM
Document Type and Number:
Japanese Patent JP2021002950
Kind Code:
A
Abstract:
To provide a surge suppression circuit, etc., which can suppress surge voltage without using a snubber circuit.SOLUTION: There is provided a surge suppression circuit that suppresses surge voltage in a pulse generation circuit, comprising a capacitor, a transistor electrically connected to the capacitor, a diode connected in parallel and in the reverse direction to the transistor, a diode current detection unit that detects the diode current flowing in the diode, and a transistor control unit that controls the transistor. The transistor control unit turns off the transistor during the diode current time period, a time period when it is known in advance that the diode current detection unit is detecting the diode current.SELECTED DRAWING: Figure 1
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Inventors:
SAKUKAWA TAKASHI
Application Number:
JP2019115930A
Publication Date:
January 07, 2021
Filing Date:
June 21, 2019
Export Citation:
Assignee:
UNIV KUMAMOTO
International Classes:
H02M1/00; H02M1/08; H03K17/08; H03K17/687
Domestic Patent References:
| JP2014036502A | 2014-02-24 | |||
| JP2010110176A | 2010-05-13 | |||
| JP2012239361A | 2012-12-06 | |||
| JP2015220929A | 2015-12-07 |
Attorney, Agent or Firm:
Koji Hadachi
Masaki Mine
Masaki Mine