Title:
POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/011357
Kind Code:
A1
Abstract:
The purpose is to reduce cost and improve power conversion efficiency.
An power supply circuit (10) comprises a boost-type inductor (L10) of which one end is connected to the plus side of an electric power supply (11), a diode (D10) of which a cathode is connected to the other end of the inductor (L10) and an anode is connected to the plus side of a load (R10), an N-channel-type MOSFET (Q10) of which a drain is connected to the cathode of the diode (D10) and a source is connected to a ground (GND), a control circuit (12) which is connected to a gate of the MOSFET (Q10), a capacitor (C10) which is connected to a part located between the anode of the diode (D10) and the ground (GND), a diode (D11) of which a cathode is connected to one end of the inductor (L10), and a resistor (R11) which is connected to the anode of the diode (D11) and the plus side of the load (R10).
Inventors:
NOMURA, Masaru (())
野村 勝 (())
野村 勝 (())
Application Number:
JP2011/064365
Publication Date:
January 26, 2012
Filing Date:
June 23, 2011
Export Citation:
Assignee:
Sharp Kabushiki Kaisha (22-22, Nagaike-cho Abeno-ku, Osaka-sh, Osaka 22, 〒5458522, JP)
シャープ株式会社 (〒22 大阪府大阪市阿倍野区長池町２２番２２号 Osaka, 〒5458522, JP)
NOMURA, Masaru (())
シャープ株式会社 (〒22 大阪府大阪市阿倍野区長池町２２番２２号 Osaka, 〒5458522, JP)
NOMURA, Masaru (())
International Classes:
H02M3/155
Attorney, Agent or Firm:
KAJI, Yoshiyuki et al. (KAJI, SUHARA & ASSOCIATES Recruit Shin Osaka BLDG., 14-22, Nishinakajima 5-chome, Yodogawa-ku, Osaka-sh, Osaka 11, 〒5320011, JP)
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Claims:
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