Amplifiers – With semiconductor amplifying device – Including push-pull amplifier
Reexamination Certificate
2007-05-08
2007-05-08
Choe, Henry (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including push-pull amplifier
C330S255000
Reexamination Certificate
active
11156851
ABSTRACT:
An amplifying circuit includes an n-type transistor having a source, a gate coupled to a first bias voltage, and a drain coupled to a first supply voltage through a first impedance circuit. A p-type transistor of the circuit has a source coupled to the source of the n-type transistor, a gate coupled to a second bias voltage, and a drain coupled to a second supply voltage through a second impedance circuit. A first differential input is coupled to the gate of the n-type transistor through a first capacitor and to the gate of the p-type transistor through a second capacitor. A second differential input is coupled to the sources of the n-type and the p-type transistors. A third capacitor has a first end coupled to the drain of the n-type transistor, and a fourth capacitor has a first end coupled to the drain of the p-type transistor and a second end coupled to a second end of the third capacitor. An output of the amplifier circuit is provided at the second ends of the third and the fourth capacitors. The n-type transistor and the first impedance circuit serve as a common-source amplifier for a signal at the first differential input and as a common-gate amplifier for the signal at the second differential input. Similarly, the p-type transistor and the second impedance circuit serve as a common-source amplifier for the signal at the first differential input and as a common-gate amplifier for the signal at the second differential input.
REFERENCES:
patent: 5721500 (1998-02-01), Karanicolas
patent: 6317000 (2001-11-01), Ivanov et al.
patent: 6384683 (2002-05-01), Lin
patent: 6556085 (2003-04-01), Kwon et al.
patent: 6714076 (2004-03-01), Kalb
Choe Henry
Oskorep, Esq. John J.
Texas Instruments Norway AS
LandOfFree
Integrated circuit having a low power, gain-enhanced, low... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrated circuit having a low power, gain-enhanced, low..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated circuit having a low power, gain-enhanced, low... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3788817