System and method for supplying power from a multi-cell battery to a single-cell power management system
US11721992B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2020 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Sep 17, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods for supplying power from a multi-cell battery to a single-cell power management integrated circuit. One implementation of the system includes a voltage converter circuit, a control circuit, and a signal buffer circuit. The voltage converter circuit is configured to scale a positive battery terminal voltage signal received from the multi-cell battery to generate a scaled voltage signal. The control circuit is configured to select one of the scaled voltage signal or a cell voltage signal received from the multi-cell battery. The control circuit is also configured to output a high-impedance single-cell power signal including the selected one of the scaled voltage signal or the cell voltage signal. The signal buffer circuit is configured to buffer the high-impedance single-cell power signal to generate a low-impedance single-cell power signal for a voltage sense pin of the single-cell power management integrated circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.