Invention Grant
- Patent Title: Base current compensation for a BJT current mirror
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Application No.: US15367628Application Date: 2016-12-02
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Publication No.: US09864395B1Publication Date: 2018-01-09
- Inventor: Roman Prochazka , Chee Weng Cheong
- Applicant: STMicroelectronics Design and Application S.R.O , STMicroelectronics Asia Pacific Pte Ltd
- Applicant Address: SG Singapore CZ Prague
- Assignee: STMicroelectronics Asia Pacific Pte Ltd,STMicroelectronics Design and Application S.R.O.
- Current Assignee: STMicroelectronics Asia Pacific Pte Ltd,STMicroelectronics Design and Application S.R.O.
- Current Assignee Address: SG Singapore CZ Prague
- Agency: Gardere Wynne Sewell LLP
- Main IPC: G05F3/26
- IPC: G05F3/26

Abstract:
A current mirror circuit includes an input current leg and an output current leg. The input current leg includes: a first bipolar junction transistor (BJT) having a collector terminal configured to receive an input current sourced at a current node and a first metal oxide semiconductor field effect transistor (MOSFET) having a gate terminal coupled to the current node and a source terminal coupled to a base terminal of the first BJT. The output current leg includes: a second BJT having a collector terminal configured to supply an output current and a second MOSFET having a gate terminal coupled to the current node and a source terminal coupled to a base terminal of the second BJT.
Information query
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