CA2391688A1 - Electronic power control for cooktop heaters - Google Patents
Electronic power control for cooktop heaters Download PDFInfo
- Publication number
- CA2391688A1 CA2391688A1 CA 2391688 CA2391688A CA2391688A1 CA 2391688 A1 CA2391688 A1 CA 2391688A1 CA 2391688 CA2391688 CA 2391688 CA 2391688 A CA2391688 A CA 2391688A CA 2391688 A1 CA2391688 A1 CA 2391688A1
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- power
- power output
- control system
- control
- heating element
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Abstract
A power control system for an electric cooktop. The power level is set by a knob connected to a potentiometer. Potentiometer information is digitally communicated by a controller over a serial communication bus to a power unit. The power unit communicates power level display information back to the controller over the same serial communication bus. The display information is displayed as numbers on a digital display by the controller.
The power unit controls a heating element of the cooktop according to the potentiometer information. A second potentiometer can be added to control a second heating element by operating. as a slave to the first controller.
Further, multiple heating elements can be controlled by-a single potentiometer by dividing the angular rotation into.multiple segments or ranges.
The power unit controls a heating element of the cooktop according to the potentiometer information. A second potentiometer can be added to control a second heating element by operating. as a slave to the first controller.
Further, multiple heating elements can be controlled by-a single potentiometer by dividing the angular rotation into.multiple segments or ranges.
Claims (63)
1. A power control system for an electric heating element, the control system comprising:
a communication bus;
a controller connected to the communication bus;
a variably resistive device connected to the controller;
a digital display connected to the controller; and a power unit connected to the communication bus, the power unit having a power output.
a communication bus;
a controller connected to the communication bus;
a variably resistive device connected to the controller;
a digital display connected to the controller; and a power unit connected to the communication bus, the power unit having a power output.
2. The control system of claim 1, wherein the variable resistor comprises a potentiometer.
3. The control system of claim 1, wherein the variable resistor comprises a rheostat.
4. The control system of claim 1, further comprising a switch alternatively supplying the power output of the power unit with a first voltage and a second voltage, the second voltage being higher than the first voltage.
5. The control system of claim 1, further comprising a heating element connected to said power output.
6. The control system of claim 5, further comprising a thermal limiter operatively associated with the heating element.
7. The control system of claim 5; further comprising a temperature warning device for indicating that the heating element is unsafe to touch.
8. The control system of claim 7, wherein the warning device includes a timing mechanism.
9. The control system of claim 7; wherein the warning device includes a temperature sensor.
10. The control system of claim 1, wherein the variably resistive device controls a level of the power output.
11. The control system of claim 10, wherein a relationship between rotation of the first variably resistive device and the level of the power output is nonlinear.
12. The control system of claim 10, wherein a relationship between rotation of the first variably resistive device and the level of the power output is nonuniform.
13. The control system of claim 1, wherein the digital display indicates a level of the power output.
14. The control system of claim 1, wherein the digital display indicates a lockout condition.
15. The control system of claim 1, wherein the digital display indicates a hot element condition.
16. The control system of claim 1, further comprising:
an oven control communication bus connected to the power unit;
an oven control unit connected to the oven control communication bus for communication with the power unit for causing the power unit to lockout the delivery of power at the power output in response to the oven control.
an oven control communication bus connected to the power unit;
an oven control unit connected to the oven control communication bus for communication with the power unit for causing the power unit to lockout the delivery of power at the power output in response to the oven control.
17. The control system of claim 1; further comprising:
an oven control communication bus connected to the power unit;
an oven control unit for initiating one of a cleaning cycle and a lockout of an oven, the oven control unit being connected to the oven control communication bus for communication with the power unit for performing one of locking out the initiation of the cleaning cycle and entering a lockout mode in response to the power unit.
an oven control communication bus connected to the power unit;
an oven control unit for initiating one of a cleaning cycle and a lockout of an oven, the oven control unit being connected to the oven control communication bus for communication with the power unit for performing one of locking out the initiation of the cleaning cycle and entering a lockout mode in response to the power unit.
18. The control system of claim 1, further comprising an oven control communication bus connected to the tower unit:
an oven control unit comprising an audible warning device, the oven
an oven control unit comprising an audible warning device, the oven
19 control unit being connected to the oven control communication bus for communication with the power unit for causing the audible warning device to emit an audible warning in response to the power unit.
19. The control system of claim 1, wherein the controller is a master controller and the control system further comprises:
a slave variably resistive device connected to the master controller;
and a second power output of the power unit;
wherein the slave variably resistive device controls a level of the second power output.
19. The control system of claim 1, wherein the controller is a master controller and the control system further comprises:
a slave variably resistive device connected to the master controller;
and a second power output of the power unit;
wherein the slave variably resistive device controls a level of the second power output.
20. The control system of claim 19, further comprising a second digital display connected to the controller for displaying a level of the second power output.
21. The control system of claim 1, wherein the power unit has a second power output, and the variably a device controls a level of the first power output and a level of the second power output.
22. The control system of claim 1, wherein the power unit has a second power output, and wherein:
a position of the variably resistive device in a first range of angular rotation controls a level of the first power output; and a position of the variably resistive device in a second range of angular rotation controls a level of the second power output.
a position of the variably resistive device in a first range of angular rotation controls a level of the first power output; and a position of the variably resistive device in a second range of angular rotation controls a level of the second power output.
23. The control system of claim 22, wherein the position of the variably resistive device in the second range of angular rotation concurrently controls the level of the first power output and the level of the second power output.
24. The control system of claim 23, further comprising:
a second variably resistive device; and a third power output of the power unit;
wherein:
a position of the second variably resistive device in a first range of angular rotation controls a level of the third power output; and a position of the second variably resistive device in a second range of angular rotation disables control by the first variably resistive device and concurrently controls the level of the first power output, the level of the second power output, and the level of the third power output.
a second variably resistive device; and a third power output of the power unit;
wherein:
a position of the second variably resistive device in a first range of angular rotation controls a level of the third power output; and a position of the second variably resistive device in a second range of angular rotation disables control by the first variably resistive device and concurrently controls the level of the first power output, the level of the second power output, and the level of the third power output.
25. The control system of claim 23, further comprising a heating element comprising a first subelement connected to said power output and a second subelement connected to said second power output.
26. The control system of claim 25, further comprising a thermal limiter operatively associated with the heating element.
27. The control system of claim 1, further comprising:
a second power output of the power unit;
a third power output of the power unit; and a second variably resistive device;
wherein:
the first variably resistive device controls a level of the first power output;
a position of the second variably resistive device in a first range of angular rotation controls a level of the second power output; and a position of the second variably resistive device in a second range of angular rotation causes the first variably resistive device to concurrently control the level of the first power output, a level of the second power output and a level of the third power output.
a second power output of the power unit;
a third power output of the power unit; and a second variably resistive device;
wherein:
the first variably resistive device controls a level of the first power output;
a position of the second variably resistive device in a first range of angular rotation controls a level of the second power output; and a position of the second variably resistive device in a second range of angular rotation causes the first variably resistive device to concurrently control the level of the first power output, a level of the second power output and a level of the third power output.
28. The control system of claim 27, wherein:
a position of the first variably resistive device in a first range of angular rotation controls the level of the first power output; and a position of the first variably resistive device in a second range of angular rotation controls the level of the second power output.
a position of the first variably resistive device in a first range of angular rotation controls the level of the first power output; and a position of the first variably resistive device in a second range of angular rotation controls the level of the second power output.
29. The control system of claim 28, wherein the position of the first variably resistive device in the second range of angular rotation concurrently controls the level of the first power output and the level of the second power output.
30. The control system of claim 27, wherein the position of the second variably resistive device in the second range of angular rotation causes a position of the first variably resistive device in a first range of angular rotation to concurrently control the level of the first power output; the level of the second power output and the level of the third power output; and wherein the position of the second variably resistive device in the second range of angular rotation causes a position of the first variably resistive device in a second range to concurrently control the level of the first power output, the level of the second power output and the level of the third power output.
31. A method of controlling a power output, comprising steps of:
inputting power setting information to an electronic controller by a variably resistive device; and adjusting a duty cycle of a power output by the electronic controller according to the angular position of the variably resistive device.
inputting power setting information to an electronic controller by a variably resistive device; and adjusting a duty cycle of a power output by the electronic controller according to the angular position of the variably resistive device.
32. The method of claim 30, wherein the variably resistive device comprises a potentiometer.
33. The method of claim 30, wherein he variably resistive device comprises a rheostat.
34. A power control system for controlling a power output, the control system comprising:
a rotational resistive control means for setting a power level;
a digital display means for digitally displaying the set power level;
an electronic control means for receiving input from the control means;
and a power means for providing a source of power at a particular duty cycle based on a signal received from the electronic control means and corresponding to an angular position of the control means that indicates the set power level.
a rotational resistive control means for setting a power level;
a digital display means for digitally displaying the set power level;
an electronic control means for receiving input from the control means;
and a power means for providing a source of power at a particular duty cycle based on a signal received from the electronic control means and corresponding to an angular position of the control means that indicates the set power level.
35. A power control system for controlling a plurality of heating elements, the control system comprising:
a first rotational control input having a first range of angular rotation and a second range of angular rotation;
a first heating element; and a second heating element;
wherein a position of the control input in the first range controls the first heating element and a position of the control input in the second range controls the second heating element.
a first rotational control input having a first range of angular rotation and a second range of angular rotation;
a first heating element; and a second heating element;
wherein a position of the control input in the first range controls the first heating element and a position of the control input in the second range controls the second heating element.
36. The control system of claim 35, further comprising a thermal limiter associated with one of the first heating element and the second heating element.
37. The control system of claim 35, wherein the position of the control input in the second range concurrently controls the first heating element and the second heating element.
38. The control system of claim 37, wherein the second heating element surrounds the first heating element.
39. The control system of claim 35, further comprising a third heating element; and wherein the second heating element is a bridge element located between the first heating element and the third heating element.
40. The control system of claim 39, further comprising a second rotational control input having a first range of angular rotation and a second range of angular rotation;
wherein a position of the second control input in the first range controls the third heating element; and wherein a position of second control input in the second range disables control by the first control input and concurrently controls the first heating element, the second heating element, and the third heating element.
wherein a position of the second control input in the first range controls the third heating element; and wherein a position of second control input in the second range disables control by the first control input and concurrently controls the first heating element, the second heating element, and the third heating element.
41. A power control system for controlling a plurality of heating elements, the control system comprising:
a first rotational control input;
a second rotational control input having a first range of angular rotation and a second range of angular rotation;
a first heating element;
a second heating elements, and a third heating element;
wherein the second heating element is abridge element positioned between the first element and the third element;
wherein the first control input controls the first heating element;
wherein a position of the! second control input in the first range controls the third heating element; and wherein a position of the second control input in the second range controls the first control input to concurrently control the first heating element, the second heating element, and the third heating element.
a first rotational control input;
a second rotational control input having a first range of angular rotation and a second range of angular rotation;
a first heating element;
a second heating elements, and a third heating element;
wherein the second heating element is abridge element positioned between the first element and the third element;
wherein the first control input controls the first heating element;
wherein a position of the! second control input in the first range controls the third heating element; and wherein a position of the second control input in the second range controls the first control input to concurrently control the first heating element, the second heating element, and the third heating element.
42. The control system of claim 41, further comprising a thermal limiter operatively associated with at least one of the first heating element, the second heating element, and the third heating element.
43. The control system of claim 41, wherein the first rotational control input has a first range of angular rotation and a second range of angular rotation; wherein the a position of the first control input in the first range controls the first heating element; and wherein a position of the first control input in the second range concurrently controls the first heating element and the second heating element.
44. The control system of claim 43, wherein the position of the second control input in the second range causes each of the position of the first control input in the first range and the position of the first control input in the second range to concurrently control the first heating element, the second heating element, and the third heating element.
45. The control system of claim 43, wherein the position of the second control input in the second range causes a position of the first control input in a full range of the first control input to concurrently control the first heating element, the second heating element, and the third heating element.
46. A power control system for an electric heating element, the control comprising:
a power means for suppling power, the power means having a power output;
a control means for controlling the power unit, the control means being in communication with a communication bus;
a variably resistive control input means for setting a level of the power output, the variably resistive control input means connected to the control means; and a display means for displaying information corresponding to the power output setting received from the control means via the communication bus.
a power means for suppling power, the power means having a power output;
a control means for controlling the power unit, the control means being in communication with a communication bus;
a variably resistive control input means for setting a level of the power output, the variably resistive control input means connected to the control means; and a display means for displaying information corresponding to the power output setting received from the control means via the communication bus.
47. The control system of claim 46, further comprising a switching means for alternatively supplying the power output of the power unit with a first voltage and a second voltage, the second voltage being higher than the first voltage.
48. The control system of claim 46, further comprising a heating means for providing heat at a level corresponding to the power output.
49. The control system of claim 46, wherein the control input means controls a level of the power output.
50. The control system of claim 46, wherein the display means indicates a level of the power output.
51. The control system of claim 46, wherein the power output is a first power output;
the control system further comprising a second power output provided to the power means; and the control input means controls a level of the first power output and a level of the second power output.
the control system further comprising a second power output provided to the power means; and the control input means controls a level of the first power output and a level of the second power output.
52. A method of controlling a heating element comprising steps of:
inputting power setting information to a controller with a variably resistive device;
communicating the power setting information from the controller to a power unit;
communicating display information from the power unit to the controller;
the controller displaying the display information on a digital display;
and the power unit controlling a heating element according to the power setting information,
inputting power setting information to a controller with a variably resistive device;
communicating the power setting information from the controller to a power unit;
communicating display information from the power unit to the controller;
the controller displaying the display information on a digital display;
and the power unit controlling a heating element according to the power setting information,
53. The method of claim 52, wherein the variably resistive device comprises a potentiometer.
54. The method of claim 52, wherein the variably resistive device comprises a rheostat.
55. The method of claim 52, further comprising a step of selecting a power setting on the variably resistive device.
56. The method of claim 52, further comprising a step of the controller converting the power setting information into digital information.
57. The method of claim 52, wherein the power setting information is communicated over a common communication bus with the display information.
58. The method of claim 52, further comprising a step of disrupting power to the heater when a temperature associated with the heater exceeds a predetermined value.
59. The method of claim 52, further comprising a step of activating a warning indicator when a temperature associated with the heater exceeds a predetermined value.
60. A method of controlling a plurality of power outputs, comprising steps of:
inputting power setting information to an electronic controller by a variably resistive device;
the electronic controller adjusting a duty cycle of a first power output according to a position in a first predetermined range of positions of the variably resistive device; and the electronic controller adjusting a duty cycle of a second power output according to position in a second predetermined range of positions of the variably resistive device.
inputting power setting information to an electronic controller by a variably resistive device;
the electronic controller adjusting a duty cycle of a first power output according to a position in a first predetermined range of positions of the variably resistive device; and the electronic controller adjusting a duty cycle of a second power output according to position in a second predetermined range of positions of the variably resistive device.
61. The method of claim 60, wherein the variably resistive device comprises a potentiometer.
62. The method of claim 60, wherein the variably resistive device comprises a rheostat.
63. A power control system having a plurality of power outputs, the control system comprising:
a rotational resistive control means;
an electronic control means for receiving input from the control means;
and a power means for providing a first source of power at a particular duty cycle based on a signal received from the electronic control means and corresponding to a position in a first predetermined range of angular positions of the control means, and for providing a second source of power at a particular duty cycle based on a signal received from the electronic control means and corresponding to a position in a second predetermined range of angular positions of the control means.
a rotational resistive control means;
an electronic control means for receiving input from the control means;
and a power means for providing a first source of power at a particular duty cycle based on a signal received from the electronic control means and corresponding to a position in a first predetermined range of angular positions of the control means, and for providing a second source of power at a particular duty cycle based on a signal received from the electronic control means and corresponding to a position in a second predetermined range of angular positions of the control means.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/118,294 | 2002-04-08 | ||
| US10/118,294 US6933474B2 (en) | 2001-10-09 | 2002-04-08 | Electronic power control for cooktop heaters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2391688A1 true CA2391688A1 (en) | 2003-10-08 |
| CA2391688C CA2391688C (en) | 2011-08-09 |
Family
ID=29248217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2391688A Expired - Lifetime CA2391688C (en) | 2002-04-08 | 2002-06-26 | Electronic power control for cooktop heaters |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2391688C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8312873B2 (en) | 2005-08-01 | 2012-11-20 | Western Industries, Inc. | Low depth telescoping downdraft ventilator |
| WO2014040988A3 (en) * | 2012-09-11 | 2015-04-23 | Philip Morris Products S.A. | Device and method for controlling an electrical heater to control temperature |
| US9777930B2 (en) | 2012-06-05 | 2017-10-03 | Western Industries, Inc. | Downdraft that is telescoping |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD694569S1 (en) | 2011-12-30 | 2013-12-03 | Western Industries, Inc. | Cook top |
-
2002
- 2002-06-26 CA CA2391688A patent/CA2391688C/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8312873B2 (en) | 2005-08-01 | 2012-11-20 | Western Industries, Inc. | Low depth telescoping downdraft ventilator |
| US9777930B2 (en) | 2012-06-05 | 2017-10-03 | Western Industries, Inc. | Downdraft that is telescoping |
| WO2014040988A3 (en) * | 2012-09-11 | 2015-04-23 | Philip Morris Products S.A. | Device and method for controlling an electrical heater to control temperature |
| EP3002657A3 (en) * | 2012-09-11 | 2016-06-15 | Philip Morris Products S.a.s. | Device and method for controlling an electrical heater to limit temperature |
| US9713345B2 (en) | 2012-09-11 | 2017-07-25 | Philip Morris Products S.A. | Device and method for controlling an electrical heater to limit temperature |
| US9872521B2 (en) | 2012-09-11 | 2018-01-23 | Philip Morris Products S.A. | Device and method for controlling an electrical heater to limit temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2391688C (en) | 2011-08-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20220627 |