Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2007-03-28
2010-06-08
Berhane, Adolf (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C206S285000
Reexamination Certificate
active
07733070
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.
REFERENCES:
patent: 7372239 (2008-05-01), Kumagai et al.
patent: 2007/0121350 (2007-05-01), Duvnjak
patent: 2005-117886 (2005-04-01), None
patent: 2006-121563 (2006-05-01), None
Berhane Adolf
Frishauf Holtz Goodman & Chick P.C.
Grubb Matthew
Mitsumi Electric Co. Ltd.
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