Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Reexamination Certificate
2005-01-18
2005-01-18
Berhane, Adolf (Department: 2838)
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
Reexamination Certificate
active
06845022
ABSTRACT:
A power conversion apparatus of this invention includes a power switching device, a voltage sensor, a current sensor, and a device controller connected to the switching device, the voltage sensor, and the current sensor. The voltage sensor detects an output voltage of the switching device to output a first signal depending on the output voltage, and the current sensor detects an output current of the switching device to output a second signal depending on the output current. The device controller includes a driver connected to the switching device and a correcter connected to the driver, the voltage sensor and the current sensor. The driver outputs a third drive signal to the switching device. The correcter monitors a switching loss and a surge voltage by using the first and second signals, and corrects the third signal depending on values of the switching loss and the surge voltage.
REFERENCES:
patent: 6081104 (2000-06-01), Kern
patent: 6154379 (2000-11-01), Okita
patent: 6201720 (2001-03-01), Tracy et al.
patent: 6603672 (2003-08-01), Deng et al.
Miyamoto Noboru
Yoshimura Kousuke
Berhane Adolf
Mitsubishi Denki & Kabushiki Kaisha
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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