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Title:
POWER FACTOR COMPENSATION POWER SUPPLY DEVICE AND LED LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/087960
Kind Code:
A1
Abstract:
A power factor compensation power supply device (1) is provided with: a power supply main circuit unit (2) equipped with a converter (4) having a switching element (7); and a power supply control unit (3) for controlling the power supply main circuit unit (2). The power supply control unit (3) generates a correction amount (Kphase) in accordance with the detected phase of an input voltage to the power supply main circuit unit (2), generates an ON-time (ton2) obtained by correcting a reference ON-time (ton1) of the switching element (7) by use of the correction amount (Kphase), and performs control so that the phase difference between an input current and the input voltage becomes zero.

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Inventors:
ISHIGURO YOSHIAKI (JP)
WATANABE SHOTA (JP)
SAKASHITA TOMOKAZU (JP)
MAEDA TAKASHI (JP)
YAMAGAMI AKIRA (JP)
HIRAYAMA TATSUYA (JP)
Application Number:
PCT/JP2017/025760
Publication Date:
May 17, 2018
Filing Date:
July 14, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MITSUBISHI ELECTRIC LIGHTING CORP (JP)
International Classes:
H02M3/155
Domestic Patent References:
WO2014119040A12014-08-07
WO2010109694A12010-09-30
Foreign References:
JP2015008583A2015-01-15
JP2014110711A2014-06-12
JPH11299244A1999-10-29
JP2016093001A2016-05-23
JP2005253284A2005-09-15
Attorney, Agent or Firm:
MURAKAMI Keigo et al. (JP)
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