Amplifiers – With control of power supply or bias voltage
Reexamination Certificate
2009-12-22
2011-10-04
Mottola, Steven J (Department: 2817)
Amplifiers
With control of power supply or bias voltage
C330S297000
Reexamination Certificate
active
08030995
ABSTRACT:
A power circuit used for an amplifier, which includes an amplifier provided with a linear amplifier serving as a voltage source, a DC/DC converter serving as a current source, a hysteresis comparator controlling the DC/DC converter, and a current detector detecting output current from the linear amplifier to output the detected output current to the hysteresis comparator; and a switching restricting device for restricting a switching interval in the DC/DC converter such that the switching interval is not equal to or less than a constant time or is not shorter than the constant time.
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Dosaka Junya
Hongo Naoki
Ito Taizo
Kawamoto Takashi
Maeki Akira
Hitachi Kokusai Electric Inc.
Mottola Steven J
Wenderoth , Lind & Ponack, L.L.P.
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