Invention Grant
- Patent Title: Voltage regulator with improved electrical properties and corresponding control method
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Application No.: US15596895Application Date: 2017-05-16
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Publication No.: US09964976B2Publication Date: 2018-05-08
- Inventor: Antonino Conte , Carmelo Paolino
- Applicant: STMicroelectronics S.r.l.
- Applicant Address: IT Agrate Brianza (MB)
- Assignee: STMICROELECTRONICS S.R.L.
- Current Assignee: STMICROELECTRONICS S.R.L.
- Current Assignee Address: IT Agrate Brianza (MB)
- Agency: Slater Matsil, LLP
- Priority: IT102015000018398 20150527
- Main IPC: G05F1/575
- IPC: G05F1/575 ; H02M3/07 ; H03F3/45 ; H03F1/34 ; H03F1/42 ; G05F1/56
Abstract:
A voltage-regulator device includes an error-amplifier stage configured to receive a first reference voltage and a feedback voltage, an output amplifier stage coupled to the error-amplifier stage and configured to generate an output voltage related to the first reference voltage by an amplification factor, and a feedback stage configured to generate the feedback voltage. A compensation stage is configured to implement a second feedback loop, and cause, in response to a variation of the output voltage, a corresponding variation of a first biasing voltage for the output amplifier stage. The compensation stage includes a coupling-capacitor element coupled between the output amplifier stage and a first internal node, and a driving module coupled between the first internal node, and the output amplifier stage and configured to generate a compensation voltage for driving the output amplifier stage.
Public/Granted literature
- US20170248981A1 VOLTAGE REGULATOR WITH IMPROVED ELECTRICAL PROPERTIES AND CORRESPONDING CONTROL METHOD Public/Granted day:2017-08-31
Information query
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