Temperature control device adapted to prevent overheating
US7279662B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2006 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Feb 27, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L21/67109
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A temperature control device comprising a heater, a plurality of heater temperature sensors, a heater temperature controller, and a power supply unit, and adapted to prevent overheating and fires caused by the overheating of a heater, is disclosed. The heater adapted to increase in temperature in response to receiving power, each heater temperature sensor is adapted to sense a temperature of the heater and generate a corresponding sensed heater temperature, and the heater temperature controller is adapted to generate an interlock control signal when at least one of the sensed heater temperatures respectively sensed by the plurality of temperature sensors exceeds a heater reference temperature. In addition, the power supply unit is adapted to stop supplying power to a power supply controller, thereby stopping power from being supplied to the heater, when the heater temperature controller provides the interlock control signal to the power supply unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.