Power converter
US12278481B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2022 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Oct 11, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/687
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power converter including transistors, a converter controller, and a functional safety controller that outputs a gate drive allowing signal. Further, there is shutoff circuitry that outputs a result of a logical conjunction using the gate pulse and the gate drive allowing signal as a drive signal, gate drive circuitry that outputs a gate signal on the basis of the drive signal, and a current detector that detects current flowing through a phase including the transistors and outputs a current value. After confirming on the basis of the current value and the gate signal that the gate signal changes to an on state during a period of no current flow through the transistor, the functional safety controller puts the gate drive allowing signal into a temporarily off state while the gate pulse is on and determines whether or not the gate signal changes to an off state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.