Title:
Current resonance type power supply
Document Type and Number:
Japanese Patent JP6323258
Kind Code:
B2
Abstract:
First and second switch are connected in series to both terminals of a DC power source. A series circuit comprising a reactor, a primary winding of a transformer, and a capacitor connected in series, and is connected to a node between the first and second switches and one terminal of the DC power source. A rectifier smoothing circuit rectifies and smoothens a voltage generated across a secondary winding of the transformer and outputs a DC voltage. A control circuit alternately turns the first and second switches on and off. A voltage detection circuit detects the DC voltage from the rectifier smoothing circuit. A signal generation circuit generates a feedback signal from the DC voltage detected by the voltage detection circuit, and outputs the signal for turning the first and second switches on and off. A load current detection circuit detects load current contained in resonance current flowing through the capacitor.
Inventors:
Takeki Sugawara
Otake Osamu
Otake Osamu
Application Number:
JP2014174959A
Publication Date:
May 16, 2018
Filing Date:
August 29, 2014
Export Citation:
Assignee:
Sanken Electric Co., Ltd.
International Classes:
H02M3/28
Domestic Patent References:
| JP2014060895A | ||||
| JP2012170218A | ||||
| JP2011004473A | ||||
| JP2009189108A | ||||
| JP2009017629A | ||||
| JP2005348560A | ||||
| JP8130871A | ||||
| JP5384973B2 |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu
Iwa Saki Kokuni
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu