Invention Grant
- Patent Title: Amplification device incorporating limiting
-
Application No.: US15763861Application Date: 2015-10-05
-
Publication No.: US10171043B2Publication Date: 2019-01-01
- Inventor: Magnus Nilsson
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Coats and Bennett, PLLC
- International Application: PCT/EP2015/072890 WO 20151005
- International Announcement: WO2017/059880 WO 20170413
- Main IPC: H04B1/16
- IPC: H04B1/16 ; H03F1/52 ; H03F3/193 ; H03F3/45 ; H03G3/30

Abstract:
An amplification device (100) comprises an amplifier circuit (110) and a limiter (120). The amplifier circuit (110) comprises a signal input (111) for an input signal to be amplified and a first signal output (112) for a first output signal. The limiter (120) comprises a differential amplifier (125) comprising a first differential amplifier input (129) for a threshold control signal, a second differential amplifier input (113) for a feedback signal, and a differential amplifier output (124) for a threshold signal indicative of a difference between the threshold control signal and the feedback signal. The limiter (120) also comprises a first diode (121) having a first anode (122) coupled to the first signal output (112) and a first cathode (123) coupled to the differential amplifier output (124), and a feedback stage (128) coupled between the differential amplifier output (124) and the second differential amplifier input (113). The feedback stage (128) is arranged to generate the feedback signal dependent on the threshold signal.
Public/Granted literature
- US20180287570A1 Amplification Device Incorporating Limiting Public/Granted day:2018-10-04
Information query