Apparatus and method for controlling pulse frequency modulation in single-inductor dual-output power circuit
US9046904B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Feb 15, 2013 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Aug 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1582
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus configured to control a pulse frequency modulation in a single-inductor dual-output power circuit. The apparatus fixes a pulse width of one of a maximum on-time pulse signal (which is used to define a maximum on-time during which a current flowing through the inductor is generated) and a minimum off-time pulse signal (which is used to define a minimum off-time during which either the boost voltage converter or the buck-boost voltage converter produces a positive voltage or a negative voltage). The apparatus adjusts a pulse width of the other pulse signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.