Invention Grant
- Patent Title: Low-noise oscillator amplitude regulator
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Application No.: US16245804Application Date: 2019-01-11
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Publication No.: US10673441B2Publication Date: 2020-06-02
- Inventor: Christian Elgaard , Lars Sundström
- 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 & Bennett, PLLC
- Main IPC: H03L5/00
- IPC: H03L5/00 ; H03B5/12

Abstract:
A frequency generation solution controls an oscillator amplitude using two feedback paths to generate high frequency signals with lower power consumption and lower noise. A first feedback path provides continuous control of the oscillator amplitude responsive to an amplitude detected at the oscillator output. A second feedback path provides discrete control of the amplitude regulating parameter(s) of the oscillator responsive to the detected oscillator amplitude. Because the second feedback path enables the adjustment of the amplitude regulating parameter(s), the second feedback path enables an amplifier in the first feedback path to operate at a reduced gain, and thus also at a reduced power and a reduced noise, without jeopardizing the performance of the oscillator.
Public/Granted literature
- US20190149155A1 Low-Noise Oscillator Amplitude Regulator Public/Granted day:2019-05-16
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