GB1077803A - Improvements in or relating to feedback control systems - Google Patents
Improvements in or relating to feedback control systemsInfo
- Publication number
- GB1077803A GB1077803A GB42999/65A GB4299965A GB1077803A GB 1077803 A GB1077803 A GB 1077803A GB 42999/65 A GB42999/65 A GB 42999/65A GB 4299965 A GB4299965 A GB 4299965A GB 1077803 A GB1077803 A GB 1077803A
- Authority
- GB
- United Kingdom
- Prior art keywords
- space
- temperature
- actuator
- heater
- variable resistor
- 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
- G05D23/20—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
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
- G05D23/1921—Control of temperature characterised by the use of electric means characterised by the type of controller using a thermal motor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
Abstract
1,077,803. Automatic temperature control of enclosed spaces. PENN CONTROLS Inc. Oct. 11, 1965, No. 42999/65. Heading G3R. A system for controlling the temperature of an enclosed space comprises an electro-thermal actuator 18 operating on the control means 51 of a furnace supplying heat to the space, the energization of the heater 11 in the actuator being under the control of a silicon controlled rectifier 12, the firing points of the rectifier 12 being controllable by the output of a bridge 40 which includes a thermistor 50 responsive to the actual temperature of the space being heated and a variable resistor 48 for setting the desired temperature of the space, the bridge including a second variable resistor 41 the slider of which is operated by the actuator 18. Thus any variation from the set temperature of the space will cause the impedance of a transistor 31 to vary so altering the time constant of the charging circuit of a capacitor 20 whereby the firing points of the silicon controlled rectifier 12 will be controlled to energize the heater 11 of the actuator 18 to restore the temperature of the space to the set value.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB42999/65A GB1077803A (en) | 1965-10-11 | 1965-10-11 | Improvements in or relating to feedback control systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB42999/65A GB1077803A (en) | 1965-10-11 | 1965-10-11 | Improvements in or relating to feedback control systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1077803A true GB1077803A (en) | 1967-08-02 |
Family
ID=10426900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB42999/65A Expired GB1077803A (en) | 1965-10-11 | 1965-10-11 | Improvements in or relating to feedback control systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1077803A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106817780A (en) * | 2017-01-18 | 2017-06-09 | 广东美的厨房电器制造有限公司 | Temperature-control circuit and electric heating equipment |
-
1965
- 1965-10-11 GB GB42999/65A patent/GB1077803A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106817780A (en) * | 2017-01-18 | 2017-06-09 | 广东美的厨房电器制造有限公司 | Temperature-control circuit and electric heating equipment |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1467654A (en) | Tape heater | |
GB1046120A (en) | Temperature control apparatus | |
GB1089905A (en) | A.c. control circuit | |
US4489882A (en) | Variable time constant anticipation thermostat | |
ES355560A1 (en) | Apparatus and method for regulating the temperature of an electrical furnace | |
SE7700658L (en) | PROCEDURE AND DEVICE FOR REGULATING THE TEMPERATURE OF A POTTERY OVEN OR SIMILAR | |
GB1077803A (en) | Improvements in or relating to feedback control systems | |
ES449549A1 (en) | Method and apparatus for controlling a heat transfer installation | |
GB573028A (en) | Improvements in or relating to temperature control systems | |
ES8100729A1 (en) | Temperature regulating device for electric heating apparatus | |
SE8503990D0 (en) | TEMPERATURE CONTROL DEVICE FOR A REAR OVEN | |
GB1174561A (en) | Improvements in or relating to Control Apparatus | |
US3075130A (en) | Temperature control apparatus with adjustable cycling | |
GB1083859A (en) | ||
US3015447A (en) | Control apparatus | |
GB907565A (en) | Improvements in temperature responsive control | |
JPS5649832A (en) | Temperature controller of air conditioner | |
GB1104381A (en) | A method and apparatus for controlling the climatic conditions in two or more areas | |
US3770194A (en) | Thermally activated control system | |
SU779983A1 (en) | Temperature regulator | |
SU468226A1 (en) | Thermostat | |
SU387335A1 (en) | DEVICE FOR AUTOMATIC REGULATION OF TWO PARAMETERS | |
ES347005A1 (en) | System to control temperature inside ovens. (Machine-translation by Google Translate, not legally binding) | |
GB1041438A (en) | Automatic control system | |
SU475607A1 (en) | Temperature controller |