Invention Grant
- Patent Title: Headroom control in regulator systems
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Application No.: US15256315Application Date: 2016-09-02
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Publication No.: US09886048B2Publication Date: 2018-02-06
- Inventor: Mengmeng Du , Hua Guan , Ngai Yeung Ho , Chi Fan Yung
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: Qualcomm Incorporated
- Current Assignee: Qualcomm Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Qualcomm Incorporated/Seyfarth Shaw LLP
- Main IPC: G05F1/565
- IPC: G05F1/565 ; G05F1/575
Abstract:
A voltage regulator control implementation dynamically detects and sets specified headroom for a low dropout (LDO) regulator at different loads to enable the LDO regulator to maintain high performance in conjunction with improved power efficiency. In one instance, an upstream voltage regulator may adaptively adjust an output voltage supplied to an input supply rail of a downstream LDO regulator based on an indication from the LDO regulator. The adaptively adjusted input voltage enables the downstream LDO regulator to achieve high performance and improved power efficiency across the entire range of load conditions.
Public/Granted literature
- US20170322575A1 HEADROOM CONTROL IN REGULATOR SYSTEMS Public/Granted day:2017-11-09
Information query
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