(19)
(11) EP 2 618 475 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
11.09.2013 Bulletin 2013/37

(88) Date of publication A3:
24.07.2013 Bulletin 2013/30

(43) Date of publication:
24.07.2013 Bulletin 2013/30

(21) Application number: 11824820.2

(22) Date of filing: 18.03.2011
(51) International Patent Classification (IPC): 
H02M 7/48(2007.01)
 H02M 7/501(2007.01)
(86) International application number:
PCT/JP2011/056535
(87) International publication number:
WO 2012/035808 (22.03.2012 Gazette 2012/12)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 13.09.2010 JP 2010204318

(71) Applicant: Omron Corporation
Kyoto-shi, Kyoto 600-8530 (JP)

(72) Inventors:
  • MABUCHI, Masao
    Kyoto-shi Kyoto 600-8530 (JP)
  • IMAMURA, Kazuyoshi
    Kyoto-shi Kyoto 600-8530 (JP)
  • TSUBOTA, Yasuhiro
    Kyoto-shi Kyoto 600-8530 (JP)
  • MIZOKAMI, Takao
    Kyoto-shi Kyoto 600-8530 (JP)
  • TANABE, Katsutaka
    Kyoto-shi Kyoto 600-8530 (JP)
  • NAKAMURA, Kotaro
    Kyoto-shi Kyoto 600-8530 (JP)
  • MAEDA, Teruyuki
    Kyoto-shi Kyoto 600-8530 (JP)
  • TOYOURA, Nobuyuki
    Kyoto-shi Kyoto 600-8530 (JP)
  • YAMADA, Mio
    Kyoto-shi Kyoto 600-8530 (JP)
  • KATO, Hidetada
    Kyoto-shi Kyoto 600-8530 (JP)

(74) Representative: Kilian Kilian & Partner 
Aidenbachstraße 54
81379 München
81379 München (DE)

   


(54) POWER CONDITIONER


(57) In order to suppress distortion in part of a waveform for a sinusoidal voltage generated by one of a pair of serially connected switch elements effectively turning on during an on/off deadtime in a circuit of a type provided with an on/off deadtime for the pair of switching elements, the power conditioner of the present invention comprises a first and second group including two switching elements each connected in inverse-parallel and in series. The power conditioner alternately turns on and off both switching elements in the first group at a prescribed chopping frequency and alternately turns on and off both switching elements in the second group at a PWM frequency higher than the chopping frequency. In addition, if control is performed with a deadtime provided in the on/off timing for both switch elements in each group, the power conditioner adjusts and controls the on/off duty for the second group switching elements to correspond to the effective on drive in one switching element by each diode during the dead time for each switching element in the first group.