Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2007-03-28
2008-05-13
Han, Jessica (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S206000, C323S285000
Reexamination Certificate
active
07372239
ABSTRACT:
Disclosed a multi-output type DC/DC converter including: a reactor connected to a direct-current power supply; a first switching circuit composed of switches to apply a current to the reactor; a second switching circuit composed of switches to switch an output from the reactor to any one of output terminals; output voltage detection sections to detect voltages of the output terminals; comparison circuits to compare outputs with a waveform signal of a predetermined frequency; and an output selection circuit to receive inputs form comparison circuits, and to select an output of a comparison circuit, the output having the earliest rise or the earliest fall, so as to generate a control signal pertaining to on and off of the first and/or second switching circuit, wherein a current generated by a discharge of energy accumulated in the reactor is output to any one of the terminals in accordance with the control signal.
REFERENCES:
patent: 6204650 (2001-03-01), Shimamori
patent: 6452367 (2002-09-01), Watanabe
patent: 7081741 (2006-07-01), Ishii et al.
patent: 2005-117886 (2005-04-01), None
Kumagai Keizo
Yamanaka Yuji
Frishauf Holtz Goodman & Chick P.C.
Han Jessica
Mitsumi Electric Co. Ltd.
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