GB947927A - Heater control circuit - Google Patents

Heater control circuit

Info

Publication number
GB947927A
GB947927A GB26233/60A GB2623360A GB947927A GB 947927 A GB947927 A GB 947927A GB 26233/60 A GB26233/60 A GB 26233/60A GB 2623360 A GB2623360 A GB 2623360A GB 947927 A GB947927 A GB 947927A
Authority
GB
United Kingdom
Prior art keywords
heater
bridge
transformer
thermistor
heating
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
GB26233/60A
Other languages
English (en)
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.)
Monsanto Chemicals Ltd
Monsanto Chemical Co
Original Assignee
Monsanto Chemicals Ltd
Monsanto Chemical Co
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
Priority claimed from US833779A external-priority patent/US3042781A/en
Priority claimed from US833780A external-priority patent/US3040156A/en
Application filed by Monsanto Chemicals Ltd, Monsanto Chemical Co filed Critical Monsanto Chemicals Ltd
Publication of GB947927A publication Critical patent/GB947927A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Temperature (AREA)
  • Control Of Resistance Heating (AREA)
  • Measuring Volume Flow (AREA)
GB26233/60A 1959-08-14 1960-07-28 Heater control circuit Expired GB947927A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US833779A US3042781A (en) 1959-08-14 1959-08-14 Control circuit
US833831A US3042782A (en) 1959-08-14 1959-08-14 Control circuit
US833780A US3040156A (en) 1959-08-14 1959-08-14 Control circuit
US29798163A 1963-07-26 1963-07-26
US29795063A 1963-07-26 1963-07-26

Publications (1)

Publication Number Publication Date
GB947927A true GB947927A (en) 1964-01-29

Family

ID=27540832

Family Applications (2)

Application Number Title Priority Date Filing Date
GB41622/62A Expired GB947928A (en) 1959-08-14 1960-07-28 Heater control circuit
GB26233/60A Expired GB947927A (en) 1959-08-14 1960-07-28 Heater control circuit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB41622/62A Expired GB947928A (en) 1959-08-14 1960-07-28 Heater control circuit

Country Status (3)

Country Link
CH (2) CH373203A (en:Method)
GB (2) GB947928A (en:Method)
SE (1) SE320446B (en:Method)

Also Published As

Publication number Publication date
SE320446B (en:Method) 1970-02-09
GB947928A (en) 1964-01-29
CH373202A (fr) 1963-11-15
CH373203A (fr) 1963-11-15

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