Invention Grant
- Patent Title: Reference circuit with temperature compensation
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Application No.: US17172136Application Date: 2021-02-10
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Publication No.: US11609591B2Publication Date: 2023-03-21
- Inventor: Chun-Yao Lu
- Applicant: Hycon Technology Corp.
- Applicant Address: TW Taipei
- Assignee: Hycon Technology Corp.
- Current Assignee: Hycon Technology Corp.
- Current Assignee Address: TW Taipei
- Agency: Jackson IPG PLLC
- Agent Demian K. Jackson
- Main IPC: G05F3/24
- IPC: G05F3/24 ; G05F1/46

Abstract:
The present invention discloses a reference circuit with temperature compensation, which is characterized in that a current output circuit is designed to receive a reference voltage from a bias voltage generation circuit, generate two reference currents with opposite temperature variation characteristics, and then merge them into a compensated current with temperature compensation. In addition, a voltage output circuit is designed to receive a reference voltage from a bias voltage generation circuit, which includes several field-effect transistors operating in saturation regions, and a precision voltage increases with threshold voltages of the field-effect transistors to compensate for the temperature variation. Resistors can be incorporated or sizes of the field effect transistors can be changed to adjust the output current, output voltage or the temperature variation characteristics.
Public/Granted literature
- US20220253085A1 Reference Circuit with Temperature Compensation Public/Granted day:2022-08-11
Information query
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