{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9753470","patent":{"patent_number":"US-9753470","title":"Adaptive headroom control to minimize PMIC operating efficiency","assignee":null,"inventors":[],"filing_date":"2013-08-30T00:00:00.000Z","publication_date":"2017-09-05T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M"],"num_claims":19,"abstract":"Various embodiments of the invention provide for an adaptive headroom controller circuit that increases the efficiency of switch mode pre-regulator circuits that supply power to multiple linear sub-regulators. Certain embodiments increase efficiency by dynamically modulating the output voltage of the pre-regulator in response to varying headroom voltages requirements, which allows sub-regulators to operate at their individually optimized headroom voltage, thereby, extending battery life and, at the same time, avoiding the triggering of a drop-out condition.In certain embodiments of the invention, further efficiency improvements are provided by selectively operating low drop-out regulators in regulator and load-switch mode. The innovation is applicable to modern mobile PMIC switching pre-regulator architectures (e.g., buck, buck/boost, or boost type) powered by a single high-voltage Li-ion battery and followed by a group of low drop-out type sub-regulators that share a common, pre-regulated low voltage input that drives multiple low-voltage outputs."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Adaptive headroom control to minimize PMIC operating efficiency","description":"Various embodiments of the invention provide for an adaptive headroom controller circuit that increases the efficiency of switch mode pre-regulator circuits that supply power to multiple linear sub-re","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9753470","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9753470","citation_suggestion":"Patentable. \"Adaptive headroom control to minimize PMIC operating efficiency\" (US-9753470). https://patentable.app/patents/US-9753470","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9753470","json":"https://patentable.app/api/llm-context/US-9753470","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:59:18.491Z"}