CA1130397A - Variable power and temperature control system for a microwave oven - Google Patents

Variable power and temperature control system for a microwave oven

Info

Publication number
CA1130397A
CA1130397A CA313,876A CA313876A CA1130397A CA 1130397 A CA1130397 A CA 1130397A CA 313876 A CA313876 A CA 313876A CA 1130397 A CA1130397 A CA 1130397A
Authority
CA
Canada
Prior art keywords
temperature
duty cycle
voltage
control system
capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA313,876A
Other languages
English (en)
French (fr)
Inventor
Walter R. Spofford, Jr.
Louis M. Sandler
Charles E. Scott
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duracell Inc USA
Original Assignee
PR Mallory and Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PR Mallory and Co Inc filed Critical PR Mallory and Co Inc
Application granted granted Critical
Publication of CA1130397A publication Critical patent/CA1130397A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/6447—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors
    • H05B6/645—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors using temperature sensors
    • H05B6/6452—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors using temperature sensors the sensors being in contact with the heated product
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1912—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can take more than two discrete values
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Control Of Temperature (AREA)
  • Electric Ovens (AREA)
CA313,876A 1977-12-28 1978-10-20 Variable power and temperature control system for a microwave oven Expired CA1130397A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86530977A 1977-12-28 1977-12-28
US865,309 1977-12-28

Publications (1)

Publication Number Publication Date
CA1130397A true CA1130397A (en) 1982-08-24

Family

ID=25345199

Family Applications (1)

Application Number Title Priority Date Filing Date
CA313,876A Expired CA1130397A (en) 1977-12-28 1978-10-20 Variable power and temperature control system for a microwave oven

Country Status (8)

Country Link
JP (1) JPS5496687A (de)
AU (1) AU4293378A (de)
CA (1) CA1130397A (de)
DE (1) DE2855376A1 (de)
FR (1) FR2414225A1 (de)
GB (1) GB2011660B (de)
MX (1) MX146095A (de)
NZ (1) NZ188672A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54142638A (en) * 1978-04-28 1979-11-07 Hitachi Heating Appliance Co Ltd High frequency heating device
JPS5568298U (de) * 1978-11-06 1980-05-10
JPS57169520A (en) * 1981-04-13 1982-10-19 Matsushita Electric Ind Co Ltd Cooking apparatus
JPS5883128A (ja) * 1981-11-12 1983-05-18 Matsushita Electric Ind Co Ltd 加熱調理器
JPH03144811A (ja) * 1989-10-31 1991-06-20 Tokyo Electric Co Ltd 調理器の温度制御方法とその装置
CN112203368B (zh) * 2020-10-09 2023-05-09 宁波昕科工贸有限公司 温度控制方法、电路及发热装置
CN112555917B (zh) * 2020-11-11 2023-07-25 深圳火王智能厨电股份有限公司 燃气灶的控制方法、燃气烹饪系统及计算机可读存储介质

Also Published As

Publication number Publication date
MX146095A (es) 1982-05-12
AU4293378A (en) 1979-07-05
FR2414225A1 (fr) 1979-08-03
GB2011660B (en) 1982-07-07
GB2011660A (en) 1979-07-11
DE2855376A1 (de) 1979-07-12
JPS5496687A (en) 1979-07-31
NZ188672A (en) 1982-08-17

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Legal Events

Date Code Title Description
MKEX Expiry