[go: up one dir, main page]

GB1425072A - Temperature control switch - Google Patents

Temperature control switch

Info

Publication number
GB1425072A
GB1425072A GB5549573A GB5549573A GB1425072A GB 1425072 A GB1425072 A GB 1425072A GB 5549573 A GB5549573 A GB 5549573A GB 5549573 A GB5549573 A GB 5549573A GB 1425072 A GB1425072 A GB 1425072A
Authority
GB
United Kingdom
Prior art keywords
switching transistor
bridge
thermistor
transistor
diagonal
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
GB5549573A
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.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO AG
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 Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of GB1425072A publication Critical patent/GB1425072A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/002—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected at their ends
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/005—Circuits arrangements for indicating a predetermined temperature
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/26—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil having thermo-sensitive input
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/30—Modifications for providing a predetermined threshold before switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Control Of Direct Current Motors (AREA)
  • Control Of Temperature (AREA)

Abstract

1425072 Detecting voltages within given range; fail safe circuits VDO ADOLF SCHINDLING AG 29 Nov 1973 [21 Dec 1972] 55495/73 Heading H3T [Also in Division H2] A protective switching arrangement associated with a bridge in one of whose arms 2 is a thermistor 7 acting as a temperature sensor and in whose zero diagonal is an amplifier associated with a switching transistor 15 controlling current to a relay 16 comprises auxiliary resistances 21, 22 in parallel with the supply diagonal of the bridge and a switching transistor 25 connected between the auxiliary resistances and point 24 where the. lead 2 from the thermistor joins the zero diagonal of the bridge this transistor 25 being operatively connected to the switching transistor 15. If a disconnection occurs in lead 2 to prevent damage to the controlled system by non-functioning of the bridge due to the thermistor being cut out of the circuit the voltage at the point 24 causes the switching transistor 25 and thus consequently switching transistor 15 to conduct and cause relay 16 to close. Switching transistor 25 may be replaced by an operational amplifier, Fig. 2, not shown.
GB5549573A 1972-12-21 1973-11-29 Temperature control switch Expired GB1425072A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722262691 DE2262691C3 (en) 1972-12-21 1972-12-21 Electronic temperature switch

Publications (1)

Publication Number Publication Date
GB1425072A true GB1425072A (en) 1976-02-18

Family

ID=5865102

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5549573A Expired GB1425072A (en) 1972-12-21 1973-11-29 Temperature control switch

Country Status (5)

Country Link
JP (1) JPS4989091A (en)
DE (1) DE2262691C3 (en)
FR (1) FR2211738B1 (en)
GB (1) GB1425072A (en)
IT (1) IT1000491B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000534A1 (en) * 1980-07-31 1982-02-18 Epishin P Method and device for automatic temperature control
CN103389753A (en) * 2012-05-11 2013-11-13 四川优的科技有限公司 Water temperature monitoring system with water temperature signal amplification function

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5144786A (en) * 1974-10-15 1976-04-16 Canon Kk ONDOSEIGYO SOCHI
JPS5222897U (en) * 1975-08-07 1977-02-17
DE7800655U1 (en) * 1978-01-11 1979-11-15 Dokoupil, Jiri, Dipl.-Ing., 6251 Gueckingen Industrial steam iron with electrically heated and controlled sole
DE2837015C2 (en) * 1978-08-24 1984-09-27 Telefunken electronic GmbH, 7100 Heilbronn Electronic security devices and their uses
JPS56113908U (en) * 1980-01-29 1981-09-02
JPS57169825A (en) * 1981-04-13 1982-10-19 Yamato Scient Co Ltd Temperature controller

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299345A (en) * 1963-04-29 1967-01-17 Gen Motors Corp Voltage control system for heating loads
DE1285613B (en) * 1963-08-22 1968-12-19 Siemens Ag Protective device in a circuit arrangement for regulation, control and / or monitoring of an independent variable
DE1438705A1 (en) * 1963-08-22 1969-08-28 Siemens Ag Safety device for a circuit arrangement in which a DC or AC-fed bridge is used to regulate, control and / or monitor the operating parameters, such as temperature, humidity, flow rate or the fluid level of a system
NL122023C (en) * 1964-05-06 1900-01-01
US3500074A (en) * 1966-08-15 1970-03-10 Texas Instruments Inc Fail-safe controller
US3456455A (en) * 1967-09-22 1969-07-22 Itt Temperature controller for environmental chamber
JPS4731241Y1 (en) * 1969-12-16 1972-09-19
DE2003470A1 (en) * 1970-01-27 1971-08-05 Eberle Werke Kg Wire break protection
FR2102782A5 (en) * 1970-08-21 1972-04-07 Thomson Automatismes
FR2108275A5 (en) * 1970-09-30 1972-05-19 Agfa Gevaert Ag
GB1377062A (en) * 1970-11-28 1974-12-11 Lucas Industries Ltd Electrical system for use in an internal combustion engine cooling system
CH538733A (en) * 1971-02-26 1973-06-30 Linde Ag Method and circuit arrangement for monitoring the temperature of a cooling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000534A1 (en) * 1980-07-31 1982-02-18 Epishin P Method and device for automatic temperature control
CN103389753A (en) * 2012-05-11 2013-11-13 四川优的科技有限公司 Water temperature monitoring system with water temperature signal amplification function

Also Published As

Publication number Publication date
FR2211738A1 (en) 1974-07-19
IT1000491B (en) 1976-03-30
JPS4989091A (en) 1974-08-26
FR2211738B1 (en) 1977-06-10
DE2262691A1 (en) 1974-06-27
DE2262691C3 (en) 1982-02-11
DE2262691B2 (en) 1981-05-14

Similar Documents

Publication Publication Date Title
ES422887A1 (en) Temperature-sensitive control circuit
GB1425072A (en) Temperature control switch
GB1302357A (en)
GB1248776A (en) A circuit arrangement for protecting the winding of an a.c. motor against overheating
GB1175336A (en) Anti-Shock Control Devices for Electrically Heated Glass.
GB1202349A (en) Temperature stabilisation of transistor voltage regulators
GB1134879A (en) Fail safe controller
GB1249442A (en) Collector follower-type transistorized voltage regulator
GB940086A (en) Improvements in or relating to voltage monitoring devices
ES376299A1 (en) Control device having means for electrically simulating and compensating the inertia momentum of the moving parts of an electrical positioning means
GB1429306A (en) Control systems for fuel systems for engines
GB1008135A (en) Improvements in circuits for protecting electrical loads from an adverse condition
GB1115963A (en) Circuit arrangement for sensing overtemperatures
GB1384802A (en)
GB1387386A (en) Protection circuits for transistor circuits
GB1164826A (en) Protective Systems for Electric Lines
GB1250766A (en)
GB839192A (en) Improvements in or relating to electrical control arrangements
GB1141642A (en) Improvements relating to the control of the output of fuel cells
SU440738A1 (en) Device for emergency shutdown of consumers
SU594494A1 (en) Continuous-operation dc voltage stabilizer
JPS5541020A (en) Logic output circuit
GB1168972A (en) Thermally Responsive Electrical Control Circuit
GB1423510A (en) Overload protection devices
GB1042550A (en) An a.c. electrical switching circuit

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee