FR2432255A2 - Electrical heating system including convectors with thermostats - has control circuit error compensated and including photosensor associated with transistor and potentiometer - Google Patents
Electrical heating system including convectors with thermostats - has control circuit error compensated and including photosensor associated with transistor and potentiometerInfo
- Publication number
- FR2432255A2 FR2432255A2 FR7822395A FR7822395A FR2432255A2 FR 2432255 A2 FR2432255 A2 FR 2432255A2 FR 7822395 A FR7822395 A FR 7822395A FR 7822395 A FR7822395 A FR 7822395A FR 2432255 A2 FR2432255 A2 FR 2432255A2
- Authority
- FR
- France
- Prior art keywords
- potentiometer
- temperature
- heating system
- electrical heating
- transistor
- 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.)
- Granted
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
- G05D23/1902—Control of temperature characterised by the use of electric means characterised by the use of a variable reference value
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
Abstract
The electrical heating system has convector units each having an individual electronic thermostat and a potentiometer(P1) setting the overall chosen temperature. A differential amplifier(A1) allows the local light level to automatically lower the overall heating requirement. It allows setting errors due to the inclusion of the temperature lowering circuit(D) to be compensated for by connecting this circuit in parallel with the temperature sensor(Th) or with the potentiometer. A second potentiometer(P2) can also be included, controlling night temperature and the former, day temperature. Potentiometer selection(R1) is then governed by the ambient light sensor(L). The light sensing element is connected in the emitter-collector loop of an NPN transistor(T) which controls the setting of the selector switch via a relay.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7822395A FR2432255A2 (en) | 1978-05-22 | 1978-07-28 | Electrical heating system including convectors with thermostats - has control circuit error compensated and including photosensor associated with transistor and potentiometer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7815073A FR2427025A1 (en) | 1978-05-22 | 1978-05-22 | Electric convector heater thermostat including differential amplifier - has photosensor between transistor base and emitter, latter in series with thermistor |
FR7822395A FR2432255A2 (en) | 1978-05-22 | 1978-07-28 | Electrical heating system including convectors with thermostats - has control circuit error compensated and including photosensor associated with transistor and potentiometer |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2432255A2 true FR2432255A2 (en) | 1980-02-22 |
FR2432255B2 FR2432255B2 (en) | 1981-10-02 |
Family
ID=26220602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7822395A Granted FR2432255A2 (en) | 1978-05-22 | 1978-07-28 | Electrical heating system including convectors with thermostats - has control circuit error compensated and including photosensor associated with transistor and potentiometer |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2432255A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0381846A2 (en) * | 1989-02-06 | 1990-08-16 | Behr GmbH & Co. | Apparatus for controlling the interior temperature of a motor vehicle |
EP0116486B1 (en) * | 1983-01-07 | 1991-01-09 | David Bensoussan | Electronic controller of the application of electric power to a temperature variation device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1005175A (en) * | 1961-05-31 | 1965-09-22 | Wilkinson Sword Ltd | Improvements in or relating to temperature controllers |
-
1978
- 1978-07-28 FR FR7822395A patent/FR2432255A2/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1005175A (en) * | 1961-05-31 | 1965-09-22 | Wilkinson Sword Ltd | Improvements in or relating to temperature controllers |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0116486B1 (en) * | 1983-01-07 | 1991-01-09 | David Bensoussan | Electronic controller of the application of electric power to a temperature variation device |
EP0381846A2 (en) * | 1989-02-06 | 1990-08-16 | Behr GmbH & Co. | Apparatus for controlling the interior temperature of a motor vehicle |
EP0381846A3 (en) * | 1989-02-06 | 1991-05-08 | Behr GmbH & Co. | Apparatus for controlling the interior temperature of a motor vehicle |
Also Published As
Publication number | Publication date |
---|---|
FR2432255B2 (en) | 1981-10-02 |
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