Title:
SWITCHING POWER SOURCE
Document Type and Number:
WIPO Patent Application WO/2006/057107
Kind Code:
A1
Abstract:
[Problems] To provide a switching power source having a stable negative voltage output. [Means for Solving the Problems] The switching power source is characterized by comprising a switching power source controller having a soft start circuit, an output stage including a coil, a switching element for controlling an electric current to flow through the coil by driving the coil with the switching power source controller, and a diode having its anode side connected with the output end and its cathode side connected with the node between the switching element and the coil, a voltage dividing circuit for dividing the output voltage of the soft start circuit and the voltage of the output end, and a soft start period adjusting circuit for adjusting the soft start period.
Inventors:
MATSUGAKI YOSHIKATSU (JP)
YOSHIDA MASAFUSA (JP)
YOSHIDA MASAFUSA (JP)
Application Number:
PCT/JP2005/018569
Publication Date:
June 01, 2006
Filing Date:
October 06, 2005
Export Citation:
Assignee:
THINE ELECTRONICS INC (JP)
MATSUGAKI YOSHIKATSU (JP)
YOSHIDA MASAFUSA (JP)
MATSUGAKI YOSHIKATSU (JP)
YOSHIDA MASAFUSA (JP)
International Classes:
H02M3/155
Foreign References:
| JP2003061341A | 2003-02-28 | |||
| JP2003299348A | 2003-10-17 | |||
| JPS56164312U | 1981-12-05 | |||
| JP2004180385A | 2004-06-24 |
Attorney, Agent or Firm:
Takahashi, Hayashi and Partner Patent Attorneys, Inc. (5-24-2 Kamata Ota-ku, Tokyo 52, JP)
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