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Class Information
Number: 330/67
Name: Amplifiers > Involving structure other than that of transformers per se > With capacitive structure
Description: Subject matter wherein the structure involved is that of a capacitor or capacitive element of the amplifier circuit.

Patents under this class:

Patent Number Title Of Patent Date Issued
8559650 Circuit apparatus and method for detecting earphone in portable terminal Oct. 15, 2013
8452025 Power supply circuit including voltage regulator and headphone driving circuit employing the same May. 28, 2013
7986184 Radio frequency amplifier with effective decoupling Jul. 26, 2011
7961470 Power amplifier Jun. 14, 2011
7911271 Hybrid broadband power amplifier with capacitor matching network Mar. 22, 2011
7683871 Display control circuit Mar. 23, 2010
7342443 Operational amplifier Mar. 11, 2008
7330180 Circuit and method for driving a capacitive load, and display device provided with a circuit for driving a capacitive load Feb. 12, 2008
7119613 RF amplifier Oct. 10, 2006
7084708 High-frequency amplification device Aug. 1, 2006
6806773 On-chip resistance to increase total equivalent series resistance Oct. 19, 2004
6473314 RF power amplifier assembly employing multi-layer RF blocking filter Oct. 29, 2002
6429745 Semiconductor device Aug. 6, 2002
6181200 Radio frequency power device Jan. 30, 2001
6133787 Method and apparatus for controlling the common mode impedance misbalance of an isolated single-ended circuit Oct. 17, 2000
5751555 Electronic component having reduced capacitance May. 12, 1998
5352991 Power amplifier assembly Oct. 4, 1994

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