Invention Grant
- Patent Title: Low dropout regulator with feedforward power supply noise rejection circuit
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Application No.: US17029991Application Date: 2020-09-23
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Publication No.: US11619959B2Publication Date: 2023-04-04
- Inventor: Gokce Gurun , Sanjeev K. Maheshwari , Wenbo Liu
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- Agent Dean M. Munyon
- Main IPC: G05F1/575
- IPC: G05F1/575
Abstract:
A voltage regulator circuit included in a computer system may include a switch device coupled between an input power supply node and a regulated power supply node. The switch device may change a value of a supply current flowing from the input power supply node and the regulated power supply node to regulate a voltage level of the regulated power supply node. A noise cancelation current may be feed forward onto a control terminal of the switch device to cancel noise on the regulated power supply node resulting from noise present on the input power supply node.
Public/Granted literature
- US20220091622A1 Low Dropout Regulator with Feedforward Power Supply Noise Rejection Circuit Public/Granted day:2022-03-24
Information query
IPC分类:
