Invention Grant
- Patent Title: Reference voltage generator having at least one bipolar junction transistor biased by negative base voltage and associated reference voltage generating method
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Application No.: US15340971Application Date: 2016-11-01
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Publication No.: US09755507B2Publication Date: 2017-09-05
- Inventor: Ta-Hsin Lin
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsin-Chu
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsin-Chu
- Agent Winston Hsu
- Main IPC: G05F3/30
- IPC: G05F3/30 ; H02M3/07 ; G01K7/00
Abstract:
A reference voltage generator has a bandgap reference circuit and a negative voltage generator. The bandgap reference circuit generates a reference voltage according to at least one base-emitter voltage of at least one bipolar junction transistor. The negative voltage generator generates a negative voltage, wherein at least one base terminal of the at least one bipolar junction transistor is arranged to receive a base voltage derived from the negative voltage.
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