- 专利标题: AMPLIFICATION DEVICE INCORPORATING LIMITING
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申请号: EP15781317.1申请日: 2015-10-05
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公开(公告)号: EP3360249A1公开(公告)日: 2018-08-15
- 发明人: NILSSON, Magnus
- 申请人: Telefonaktiebolaget LM Ericsson (PUBL)
- 申请人地址: 164 83 Stockholm SE
- 专利权人: Telefonaktiebolaget LM Ericsson (PUBL)
- 当前专利权人: Telefonaktiebolaget LM Ericsson (PUBL)
- 当前专利权人地址: 164 83 Stockholm SE
- 代理机构: Ericsson
- 国际公布: WO2017059880 20170413
- 主分类号: H03F1/52
- IPC分类号: H03F1/52 ; H03F3/189 ; H03F3/45
摘要:
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.
公开/授权文献
- EP3360249B1 AMPLIFICATION DEVICE INCORPORATING LIMITING 公开/授权日:2019-08-14
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