{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9735671","patent":{"patent_number":"US-9735671","title":"Charge pump-based drive circuitry for bipolar junction transistor (BJT)-based power supply","assignee":null,"inventors":[],"filing_date":"2014-05-16T00:00:00.000Z","publication_date":"2017-08-15T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M"],"num_claims":29,"abstract":"A bipolar junction transistor (BJT) may be used to generate a supply voltage for operating a controller, such as a lighting controller for a LED-based light bulb. A base of the BJT may receive current generated from the supply voltage to control operation of the BJT. Although the base of the BJT would be at a lower voltage than the emitter, a base drive circuit may be coupled between the emitter and the base of the BJT to increase the voltage. As one example, the base drive circuit may be a charge pump. In another example, the BJT may function as its own charge pump. In yet another example, a positive and a negative base current of the BJT may be independently controlled to regulate an output supply voltage VDD from the BJT."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Charge pump-based drive circuitry for bipolar junction transistor (BJT)-based power supply","description":"A bipolar junction transistor (BJT) may be used to generate a supply voltage for operating a controller, such as a lighting controller for a LED-based light bulb. A base of the BJT may receive current","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9735671","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-9735671","citation_suggestion":"Patentable. \"Charge pump-based drive circuitry for bipolar junction transistor (BJT)-based power supply\" (US-9735671). https://patentable.app/patents/US-9735671","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9735671","json":"https://patentable.app/api/llm-context/US-9735671","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:56:12.410Z"}