Controller in a voltage mode buck converter for implementing a mode-switch function and an over-current protection by a multifunction pin and method thereof
US7098632B2 · kind B2 · utility
30Cited by
4References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 5, 2005 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Apr 5, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/158
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a voltage mode buck converter having a pair of switches connected in series by a phase node to be switched by a pair of drive signals generated from a first control signal, a phase resistor is connected between a multifunction pin and the phase node, and a controller generates a second control signal and a third control signal from the second drive signal to sense the voltage on the multifunction pin respectively to generate an over-current signal and a CCM mode switch signal to switch the converter between a CCM mode and a DCM mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.