Digitally controlled buck-boost regulator having a custom mapping controller
US9389628B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2013 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Apr 11, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A digitally controlled buck boost regulator includes an H-bridge circuit including a plurality of switches configured to receive an input voltage signal and generate an output voltage signal based on the input voltage signal and switching signals provided thereto. A controller generates a pulse width modulation (PWM) control value in response to a value of the output voltage signal, and a quantizer/mapper receives the PWM control value and provides a first mapping to a mapped PWM control value if the PWM control value is outside a predetermined range of PWM control values, and generates a second mapping to a mapped PWM control value if the PWM control value is within the predetermined range. A digital pulse width modulator is configured to generate switching signals based on the mapped PWM control value, and provide the generated switching signals to the H-bridge circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.