Prime-mover dynamo plants – Electric control – Engine control
Reexamination Certificate
2007-12-11
2007-12-11
Ponomarenko, Nicholas (Department: 2834)
Prime-mover dynamo plants
Electric control
Engine control
C290S04000F, C123S497000
Reexamination Certificate
active
11271311
ABSTRACT:
A power supply apparatus comprised of a bridge circuit made up of rectification diodes and MOSFETs for rectifying an output of a generator through a full-wave rectifier circuit comprised of rectification diodes and parasitic diodes of the MOSFETs and obtaining a supply voltage of a fuel injection apparatus, the power supply apparatus being comprised of an FET control section which turns ON/OFF the MOSFETs to step up the output voltage of the generator and a transistor provided for each MOSFET, which is set in an ON-state for a period during which a reverse voltage is applied to a parasitic diode of each MOSFET and set in an OFF-state for a period during which a forward voltage is applied to the parasitic diode of each MOSFET, wherein a control voltage for turning ON the MOSFET is given between the gate and source of the corresponding MOSFET for a period during which each transistor is in an OFF-state.
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Kokusan Denki Co. Ltd.
Pearne & Gordon LLP
Ponomarenko Nicholas
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