Title:
POWER SUPPLY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2014/017146
Kind Code:
A1
Abstract:
Provided is a technology of detecting not only a main direct current voltage, but also a sub-direct current voltage, thereby contributing to protection of a main rectifying circuit and a sub-rectifying circuit. A main power supply circuit (119) drives a load (121). A main rectifying circuit (11) has an alternating current voltage inputted thereto via a first switch (102), and supplies a main direct current voltage (Vdc1) to the main power supply circuit (119). In the cases where an overcurrent is flowed to the main power supply circuit (119), or the load (121) is overload with respect to the main power supply circuit (119), the first switch (102) is shut. Operating power supply is supplied to the control circuit (123) from the sub-power supply circuit (117). A sub-rectifying circuit (12) bypasses the first switch (102), has the alternating current voltage inputted thereto, and supplies a sub-direct current voltage (Vdc2) to the sub- power supply circuit (117). A direct current voltage detecting circuit (13) detects the main direct current voltage (Vdc1) and the sub-direct current voltage (Vdc2).
Inventors:
TSUTSUI YASUYUKI
IMOTO MITSURU
SAKAE NORIO
JOUTAKI KOUJI
FUKADA KEISUKE
SHOUJI TETSUO
IMOTO MITSURU
SAKAE NORIO
JOUTAKI KOUJI
FUKADA KEISUKE
SHOUJI TETSUO
Application Number:
PCT/JP2013/063683
Publication Date:
January 30, 2014
Filing Date:
May 16, 2013
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
H02H3/08; F24F11/33; F24F11/46; F24F11/49; F24F11/62; F24F11/64; F24F11/86; F24F11/88; F24F11/89; H02J1/00; H02P29/02; H02P29/62; F24F11/02
Foreign References:
| JP2001241732A | 2001-09-07 | |||
| JP2007325448A | 2007-12-13 | |||
| JP2007116873A | 2007-05-10 | |||
| JP2006067754A | 2006-03-09 | |||
| JP2006304557A | 2006-11-02 | |||
| JP2000111123A | 2000-04-18 | |||
| JP2000069786A | 2000-03-03 | |||
| JP2011010494A | 2011-01-13 | |||
| JPH0879963A | 1996-03-22 |
Other References:
SEKIMOTO: "Development of Air Conditioner Compliant to IEC Harmonic Standard by Single-Phase to Three Phase Converter without Electrolytic Capacitors", IEEJ TECHNICAL MEETING ON MOTOR DRIVE, NO. MD-11, 2011, pages 51 - 56
See also references of EP 2876764A4
See also references of EP 2876764A4
Attorney, Agent or Firm:
YOSHITAKE, Hidetoshi et al. (JP)
Hidetoshi Yoshitake (JP)
Hidetoshi Yoshitake (JP)
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