High-frequency power apparatus

Details High-frequency power apparatus High-frequency power apparatus

2007-09-04

2007-09-04

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S284000, C323S286000, C363S016000

Reexamination Certificate

active

11467229

ABSTRACT:
A high-frequency power apparatus including: an oscillator, outputting an oscillating signal, an output level of the oscillating signal being variable; an amplifier, amplifying the oscillating signal output from the oscillator and outputting high-frequency power; a DC power supply, supplying DC power to the amplifier, an output level of the DC power being variable; a high-frequency power measuring unit, measuring a power value of the high-frequency power at an output terminal of the high-frequency power apparatus and outputting the measured power value as a high-frequency power measured value; a DC power measuring unit, measuring a power value of the DC power supplied to the amplifier and outputting the measured DC power value as a DC power measured value; a first controller, controlling the output level of the oscillating signal to be output from the oscillator such that the high-frequency power measured value is substantially equal to an output power set value; and a second controller, controlling the output level of the DC power to be supplied from the DC power supply to the amplifier such that a calculated value obtained by dividing the high-frequency power measured value by the DC power measured value is substantially equal to a predetermined efficiency set value.

REFERENCES:
patent: 6194885 (2001-02-01), Oshima
patent: 7106031 (2006-09-01), Hayakawa et al.
patent: 7129679 (2006-10-01), Inaba et al.
patent: 7221129 (2007-05-01), Matsuo et al.
patent: 2005/0259450 (2005-11-01), Kotani et al.
patent: 2006/0220573 (2006-10-01), Kotani et al.
patent: 2001197749 (2001-07-01), None
patent: 2004240880 (2004-08-01), None
patent: 2004320418 (2004-11-01), None
English language Abstract of JP 2001-197749.
English language Abstract of JP 2004-240880.
English language Abstract of JP 2004-320418.

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