Over-temperature protection circuitry and driving method
US10804694B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 18, 2017 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Jan 18, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H5/042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An embodiment of the present disclosure discloses an over-temperature protection circuitry and a driving method. The circuit includes a source circuit, a comparator circuit and an output circuit, wherein the comparator circuit includes a thermistor, a first resistor and a comparator, the source circuit is connected to a first input terminal of the comparator via the thermistor and is connected to a second input terminal of the comparator via the first resistor; and the comparator circuit is configured to compare a first signal from the first input terminal with a second signal from the second input terminal, and output a control signal according to a comparison result, the control signal is an over-temperature control signal in the case that the comparison result indicates that the temperature is greater than or equal to a protection threshold, and the output circuit is configured to output an disenabling signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.