Invention Grant
- Patent Title: Multi-output type DC/DC converter
- Patent Title (中): 多输出型DC / DC转换器
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Application No.: US11692707Application Date: 2007-03-28
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Publication No.: US07733070B2Publication Date: 2010-06-08
- Inventor: Keizo Kumagai
- Applicant: Keizo Kumagai
- Applicant Address: JP Tama-Shi
- Assignee: Mitsumi Electric Co., Ltd.
- Current Assignee: Mitsumi Electric Co., Ltd.
- Current Assignee Address: JP Tama-Shi
- Agency: Frishauf, Holtz, Goodman & Chick, P.C.
- Priority: JP2006-163252 20060613
- Main IPC: G05F1/577
- IPC: G05F1/577

Abstract:
A multi-output type DC/DC converter including: a reactor connected to a direct-current power supply; a first switching circuit to apply a current to the reactor; a second switching to switch an output from the reactor to any one of output terminals; output voltage detection units to detect voltages of the output terminals; comparison circuits to compare outputs of the output voltage detection units with a waveform signal of a predetermined frequency; and an output selection unit to receive outputs of the comparison circuits as inputs, the output selection unit selecting an output of a comparison circuit, the output having an earlier rise or an earlier fall, to generate a plurality of control signals pertaining to on and off of the first switching circuit and/or the second switching circuit, the output selection unit treating the plurality of control signals in accordance with a predetermined priority order when the outputs of the plurality of comparison circuits change almost at the same time, wherein a current generated by a discharge of energy accumulated in the reactor is output to any one of the output terminals in accordance with the control signals generated by the output selection unit.
Public/Granted literature
- US20070285072A1 MULTI-OUTPUT TYPE DC/DC CONVERTER Public/Granted day:2007-12-13
Information query
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