Amplifiers – With semiconductor amplifying device – Including push-pull amplifier
Reexamination Certificate
2007-07-10
2007-07-10
Nguyen, Patricia (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including push-pull amplifier
C330S297000, C330S264000, C330S271000
Reexamination Certificate
active
11091430
ABSTRACT:
A power amplifier includes an input circuit, three power supply lines with voltages successively decreasing in an order of first, second and third power supply lines, a push-side driving circuit and a pull-side driving circuit which receive control signals from the input circuit, three driving signal lines which are led out of the driving circuits, three output transistors which have current paths connected at one ends to the first, second and third power supply lines, and have gates connected to the three driving signal lines, respectively, an output terminal which is commonly connected to the other ends of the current paths of the output transistors, an impedance circuit which adjusts a gate impedance of the output transistor connected to the third power supply line, and a feedback circuit connected between the output terminal and the input circuit.
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Kabushiki Kaisha Toshiba
Nguyen Patricia
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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