Using a linear pass element in quasi saturation mode to control ripple
US11412592B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 4, 2021 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | May 4, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/3725
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply system includes a rectifier configured to rectify an input signal to generate a rectified signal having a single polarity, a converter configured to generate a drive signal for powering a light source, and a ripple control system including a voltage-controlled resistor (VCR) coupled to a secondary-side of the converter and configured to dynamically adjust a resistance of the VCR to compensate for ripples in the drive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.