{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9787190","patent":{"patent_number":"US-9787190","title":"Power conversion device and in-vehicle power supply device equipped with same","assignee":null,"inventors":[],"filing_date":"2012-02-06T00:00:00.000Z","publication_date":"2017-10-10T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M","H02M"],"num_claims":20,"abstract":"In a DC/DC converter that performs zero-voltage switching, capacitors are connected respectively in parallel to first and second MOSFETs that are included in an inverter unit in the primary-side of a transformer, and an inductor is connected to an AC output line. In a range of a current being more than a predetermined value, a control circuit controls the inverter unit using a PWM control with a fixed dead time, and in a light load range where the current is equal to or less than the predetermined value, the control unit changes the control to a PFM control and decreases a frequency so that the dead time becomes longer as the current decreases, to thereby keep a duty ratio without change."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Power conversion device and in-vehicle power supply device equipped with same","description":"In a DC/DC converter that performs zero-voltage switching, capacitors are connected respectively in parallel to first and second MOSFETs that are included in an inverter unit in the primary-side of a ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9787190","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-9787190","citation_suggestion":"Patentable. \"Power conversion device and in-vehicle power supply device equipped with same\" (US-9787190). https://patentable.app/patents/US-9787190","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9787190","json":"https://patentable.app/api/llm-context/US-9787190","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:21:43.660Z"}