GB1225302A - Temperature-Dependent control of the supply of current to an electrical appliance - Google Patents
Temperature-Dependent control of the supply of current to an electrical applianceInfo
- Publication number
- GB1225302A GB1225302A GB2143968A GB2143968A GB1225302A GB 1225302 A GB1225302 A GB 1225302A GB 2143968 A GB2143968 A GB 2143968A GB 2143968 A GB2143968 A GB 2143968A GB 1225302 A GB1225302 A GB 1225302A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- threshold value
- temperature
- heater
- metal
- 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
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
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
- G05D23/303—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature using a sensing element having a resistance varying with temperature, e.g. 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
-
- 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
- G05D23/1913—Control of temperature characterised by the use of electric means using an analogue comparing device delivering a series of pulses
-
- 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)
- Control Of Temperature (AREA)
Abstract
1,225,302. Automatic temperature control systems. SIEMENS-ELECTROGERATE G.m.b.H. May 6, 1968 [May 5, 1967; Sept. 27, 1967], No.21439/68. Heading G3R. An electric heating element 1 e.g. in a hotplate is supplied through bi-metal switch 3-5 the heater of which is controlled by a threshold value switch e.g. a thyristor or breakdown diode so that when the temperature sensed e.g. by a thermistor 7 rises to a value set by a corresponding resistor 8, the threshold switch conducts hence causing the bi-metal switch to open. In an alternative arrangement Fig.2 (not shown), components 3, 7, 8, are arranged in a bridge network together with an added resistor 12. In a further arrangement Fig. 3 (not shown) the control circuit is fed from a tap on the heating element and the bi-metal heater is controlled by a transistor threshold value amplifier. In Fig. 4 (not shown) a diode is used a threshold value device controlling heater current to a reed relay (40, 42) and in Fig. 5 (not shown) a complementary pair of transistors (29, 34) are rendered conductive at the determined temperature with a lag of 90 degrees each half cycle, but in an alternative arrangement the lag may be reduced to zero by including an R. C. member (45) in the circuit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0109730 | 1967-05-05 | ||
| DES0112055 | 1967-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1225302A true GB1225302A (en) | 1971-03-17 |
Family
ID=25998775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2143968A Expired GB1225302A (en) | 1967-05-05 | 1968-05-06 | Temperature-Dependent control of the supply of current to an electrical appliance |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT283527B (en) |
| CH (1) | CH464383A (en) |
| FR (1) | FR1561786A (en) |
| GB (1) | GB1225302A (en) |
| SE (1) | SE332469B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000031480A1 (en) * | 1998-11-24 | 2000-06-02 | Miller Europe S.P.A. | Device for controlling the service loads of an electric household appliance, in particular a refrigerator |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2836882C2 (en) * | 1978-08-23 | 1986-08-14 | E.G.O. Elektro-Geräte AG, Zug | Control device for electric hotplates |
| IT1191524B (en) * | 1986-01-13 | 1988-03-23 | Zanussi Elettrodomestici | HOUSEHOLD APPLIANCE WITH ELECTRONIC PROGRAMMER WITH INTERFACE FOR THE CONTROL OF POWER BODIES |
| CN103049024A (en) * | 2013-01-01 | 2013-04-17 | 李兴宁 | Temperature controller |
-
1968
- 1968-03-20 CH CH414068A patent/CH464383A/en unknown
- 1968-04-12 AT AT364668A patent/AT283527B/en not_active IP Right Cessation
- 1968-05-03 FR FR150452A patent/FR1561786A/en not_active Expired
- 1968-05-03 SE SE06008/68A patent/SE332469B/en unknown
- 1968-05-06 GB GB2143968A patent/GB1225302A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000031480A1 (en) * | 1998-11-24 | 2000-06-02 | Miller Europe S.P.A. | Device for controlling the service loads of an electric household appliance, in particular a refrigerator |
| US6660976B1 (en) | 1998-11-24 | 2003-12-09 | Itw Industrial Components S.R.L. | Device for controlling the service loads of an electric household appliance, in particular a refrigerator |
| US6894253B2 (en) | 1998-11-24 | 2005-05-17 | Itw Industrial Components S.R.L. | Device for controlling the service loads of an electric household appliance, in particular a refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| SE332469B (en) | 1971-02-08 |
| FR1561786A (en) | 1969-03-28 |
| CH464383A (en) | 1968-10-31 |
| AT283527B (en) | 1970-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |
