Title:
SWITCHING POWER SUPPLY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2014/129126
Kind Code:
A1
Abstract:
Disclosed is a switching power supply apparatus that is provided with an apparatus connection state detection circuit which detects, in a power supply system having a load apparatus connection terminal, a connection state of the load apparatus connection terminal. The apparatus connection state detection circuit is provided with a transformer, a switch element, a pulse generator, and a waveform detection circuit. The waveform detection circuit detects a voltage or a current generated in a primary coil or a secondary coil of the transformer corresponding to operations of pulse signals, compares the voltage or the current with a previously set reference value, and outputs, to an OFF terminal, an output signal corresponding to the comparison results.
Inventors:
MOROTA NAOHIKO
SAKURAI TATSUYA
SAJI TAKASHI
KAWABE KEITA
MURATA KAZUHIRO
SUZUKI KOJI
MORI YOSHIHIRO
SAKURAI TATSUYA
SAJI TAKASHI
KAWABE KEITA
MURATA KAZUHIRO
SUZUKI KOJI
MORI YOSHIHIRO
Application Number:
PCT/JP2014/000557
Publication Date:
August 28, 2014
Filing Date:
February 04, 2014
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H02M3/28; H02J1/00; H02M1/00
Foreign References:
| JP2012147664A | 2012-08-02 | |||
| JPH05252662A | 1993-09-28 | |||
| JP2012105379A | 2012-05-31 |
Attorney, Agent or Firm:
TOKUDA, Yoshiaki et al. (JP)
Yoshiaki Tokuda (JP)
Yoshiaki Tokuda (JP)
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