Control circuit for controlling heating element power
US8680440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2008 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Oct 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B1/0272
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit and associated method for dynamically controlling power to one or more heating elements are provided. A power source supplies power to a load through one or more current pass elements, which is controlled by a control signal. A processor determines a time period (T) having a time cycle beginning at Ton and a Time cycle end at Toff, where the Time cycle end is less than the time period (T), variable, and generates the control signal or signals each time period (T), thereby electrically connecting the power source to the load and the current sensing element each time period (T) to dispense precisely predetermined quantities of energy per pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.