Invention Grant
- Patent Title: Electronic amplification device with current mirror for integrated power amplifiers
- Patent Title (中): 具有集成功率放大器电流镜的电子放大装置
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Application No.: US12643373Application Date: 2009-12-21
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Publication No.: US08195104B2Publication Date: 2012-06-05
- Inventor: Ranieri Guerra , Giuseppe Palmisano
- Applicant: Ranieri Guerra , Giuseppe Palmisano
- Applicant Address: IT Agrate Brianza (MI)
- Assignee: STMicroelectronics S.R.L.
- Current Assignee: STMicroelectronics S.R.L.
- Current Assignee Address: IT Agrate Brianza (MI)
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Priority: ITMI2008A2283 20081222
- Main IPC: H04B1/04
- IPC: H04B1/04

Abstract:
The disclosure relates to an electronic differential amplification device integrated on a semiconductor chip. The device may include first and second transistors having respective source terminals connected to a first potential, and drain terminals to receive a first differential current signal. The device may include third and fourth transistors having respective source terminals connected to the first potential, and drain terminals to provide a second differential current signal to a load obtained by amplifying the first signal. The third and fourth transistors may have a respective gate terminal connected to the drain terminal of the first and the second transistors, respectively, in order to form current mirrors with the latter. The device is characterized in that the first and second transistors may have the respective gate terminals electrically connected to a common terminal, and at least one first and at least one second resistive elements are connected between the common terminal and the drain terminals of the first and the second transistors, respectively.
Public/Granted literature
- US20100159853A1 ELECTRONIC AMPLIFICATION DEVICE WITH CURRENT MIRROR FOR INTEGRATED POWER AMPLIFIERS Public/Granted day:2010-06-24
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