Amplifying circuit for transmitter capable of reducing noise

Details Amplifying circuit for transmitter capable of reducing noise Amplifying circuit for transmitter capable of reducing noise

2005-09-06

2005-09-06

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including class d amplifier

C330S20700P

Reexamination Certificate

active

06940351

ABSTRACT:
In an amplifying circuit for a transmitter including a first switching device having one end thereof connected to a power supply, a second switching device having one end thereof connected to another end of the first switching device and another end thereof grounded and an antenna connected to a junction point of the first switching device and the second switching device, wherein the first switching device and the second switching device12are alternately driven by a driver, the driver and a control electrode of the first switching device as well as the driver and a control electrode of the second switching device are connected through a common mode filter.

REFERENCES:
patent: 3239771 (1966-03-01), Andreatta
patent: 4554512 (1985-11-01), Aiello
patent: 6577194 (2003-06-01), Delano
patent: 6605991 (2003-08-01), Midya et al.
patent: 07-254824 (1995-10-01), None

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