Universal input-voltage—compatible switched-mode power supply
US10848064B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2019 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Oct 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/392
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Switched-mode power supply (SMPS) integrated circuit including direct current step-down converter, switch, and element for potential energy storage in electric field and having T-On voltage. SMPS configured to: receive DC input current and output through load; operate in boundary conduction mode applying pulse-width-modulated voltage to switch for controlling T-On/T-Off duty cycle; generate regulated T-On current setting maximum T-On; monitor input voltage by reduction to voltage signal range; convert signal voltage to signal current value within current signal range; output T-On modulation current including signal current; combine T-On modulation current with regulated T-On current during T-On period to store potential energy in element while monitoring T-On voltage of element; and initiate T-Off period when potential energy stored in element reaches maximum T-On voltage. Further SMPS's. Method of operating SMPS's.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.