Invention Grant
- Patent Title: Logarithmic power detector
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Application No.: US16990967Application Date: 2020-08-11
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Publication No.: US11223337B2Publication Date: 2022-01-11
- Inventor: Hwey-Ching Chien , Chun-Han Tai
- Applicant: RichWave Technology Corp.
- Applicant Address: TW Taipei
- Assignee: RichWave Technology Corp.
- Current Assignee: RichWave Technology Corp.
- Current Assignee Address: TW Taipei
- Agent Winston Hsu
- Priority: TW108131163 20190830
- Main IPC: H03F1/32
- IPC: H03F1/32 ; H03F3/24

Abstract:
A logarithmic power detector includes a power distributor, a first detection circuit, a second detection circuit and an output circuit. The power distributor is used to generate a first power signal and a second power signal according to an input signal. The first detection circuit is used to attenuate the first power signal to generate a first rectified signal, filter the first rectified signal to generate a first low-pass signal, and amplify the first low-pass signal to generate a first amplification current. The second detection circuit is used to attenuate the second power signal to generate a second rectified signal, filter the second rectified signal to generate a second low-pass signal, and amplify the second low-pass signal to generate a second amplification current. The output circuit is used to receive the first amplification current and the second amplification current to generate a converted voltage related to the input signal.
Public/Granted literature
- US20210067108A1 Logarithmic Power Detector Public/Granted day:2021-03-04
Information query
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