Title:
POWER DETECTION CIRCUIT HAVING TEMPERATURE COMPENSATION FUNCTION, AND RADIO-FREQUENCY FRONT-END MODULE COMPRISING POWER DETECTION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2023/138600
Kind Code:
A1
Abstract:
A power detection circuit (3) having a temperature compensation function, and a radio-frequency front-end module comprising the power detection circuit. The power detection circuit (3) comprises at least one class of power detection unit (Class 1, Class 2, Class 3) and an integration unit (Sum), wherein an input end of the integration unit (Sum) is connected to an output end of the power detection unit (Class 1, Class 2, Class 3); a resistor which is connected to a bias voltage in the power detection unit (Class 1, Class 2, Class 3) is a thermistor, and/or a resistor which is connected to a reference ground potential in the integration unit (Sum) is a thermistor. The technical problem of requiring a plurality of bias voltages (Vreg) with different temperature coefficients to supply power due to different circuit modules having different requirements for temperature coefficients of bias voltages (Vreg) is solved.
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Inventors:
LI HAO (CN)
BAI YUNFANG (CN)
BAI YUNFANG (CN)
Application Number:
PCT/CN2023/072797
Publication Date:
July 27, 2023
Filing Date:
January 18, 2023
Export Citation:
Assignee:
VANCHIP TIANJIN TECH CO LTD (CN)
International Classes:
G05F1/567
Foreign References:
| US20180145641A1 | 2018-05-24 | |||
| CN101924523A | 2010-12-22 | |||
| CN105577125A | 2016-05-11 | |||
| CN106405222A | 2017-02-15 | |||
| CN107370464A | 2017-11-21 | |||
| CN111384906A | 2020-07-07 | |||
| CN113359934A | 2021-09-07 | |||
| JP2015173313A | 2015-10-01 | |||
| CN114089803A | 2022-02-25 |
Attorney, Agent or Firm:
BELJING GENIUS ESSEN INTELLECTUAL PROPERTY OFFICE (CN)
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