Invention Grant
- Patent Title: Operational amplifier with current limiting circuitry
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Application No.: US16521762Application Date: 2019-07-25
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Publication No.: US10942535B2Publication Date: 2021-03-09
- Inventor: Mahraj Sivaraj , John Pigott
- Applicant: NXP USA, Inc.
- Applicant Address: US TX Austin
- Assignee: NXP USA, Inc.
- Current Assignee: NXP USA, Inc.
- Current Assignee Address: US TX Austin
- Agent Charlene R. Jacobsen
- Main IPC: G05F1/46
- IPC: G05F1/46 ; G05F1/575 ; G05F3/20
Abstract:
A method for current limiting an operational amplifier includes sensing a first current through a first branch of the operational amplifier. The first branch conducts the first current from a limited current supply connected to an operational amplifier output. The first current is compared to a reference current to generate a regulation signal. A variable current source is controlled with the regulation signal. An output current of a transconductance amplifier is limited with the variable current source to limit the first current in response thereto.
Public/Granted literature
- US20210026383A1 Operational Amplifier With Current Limiting Circuitry Public/Granted day:2021-01-28
Information query
IPC分类:
