Apparatus and method for over-voltage and over-current protection for a step-up current-mode converter
US7411379B2 · kind B2 · utility
21Cited by
1References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 19, 2005 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | May 20, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an apparatus for over-voltage and over-current protection for a step-up current-mode converter including an inductor connected via a phase node to a switch that is switched by a control signal to convert an input voltage to an output voltage, a controller has a multiplexed pin, and a resistor and a capacitor are connected in parallel between the multiplexed pin and the phase node. In an over-voltage protection mode, the controller senses the voltage on the multiplexed pin, and in an over-current protection mode, the controller supplies a current to flow through the resistor and senses the voltage on the multiplexed pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.