FR2279150A1 - Electronic temp. regulator with low operating hysteresis - has triac switching power to load with high thermal inertia - Google Patents
Electronic temp. regulator with low operating hysteresis - has triac switching power to load with high thermal inertiaInfo
- Publication number
- FR2279150A1 FR2279150A1 FR7417645A FR7417645A FR2279150A1 FR 2279150 A1 FR2279150 A1 FR 2279150A1 FR 7417645 A FR7417645 A FR 7417645A FR 7417645 A FR7417645 A FR 7417645A FR 2279150 A1 FR2279150 A1 FR 2279150A1
- Authority
- FR
- France
- Prior art keywords
- load
- regulator
- low operating
- switching power
- high thermal
- 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
- G05D23/1906—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)
- Power Conversion In General (AREA)
Abstract
Power is applied to a regulator circuit in which a load (12) is connected. Power is applied to a capacitor (15) and resistor (16) in series in the regulator circuit. A resistor (17) is connected to their junction (20). A negative temperature coefficient resistor (19) and capacitor (18) are connector in series with this resistor (17) to obtain a short duration ramp voltage for a diac (14) in the trigger circuit (G) of a triac (13) in series with the load. Resistors (81, 82) connected in series between the diac and triac have a capacitor (83) connected from their junction (24) to a diac (84) in order to provide a low operating hysteresis valve.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7417645A FR2279150A1 (en) | 1974-05-21 | 1974-05-21 | Electronic temp. regulator with low operating hysteresis - has triac switching power to load with high thermal inertia |
IT23590/75A IT1038339B (en) | 1974-05-21 | 1975-05-21 | ELECTRONIC TEMPERATURE REGULATOR WITH SYNCHRONOUS CONNECTION |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7417645A FR2279150A1 (en) | 1974-05-21 | 1974-05-21 | Electronic temp. regulator with low operating hysteresis - has triac switching power to load with high thermal inertia |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2279150A1 true FR2279150A1 (en) | 1976-02-13 |
FR2279150B1 FR2279150B1 (en) | 1978-08-04 |
Family
ID=9139111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7417645A Granted FR2279150A1 (en) | 1974-05-21 | 1974-05-21 | Electronic temp. regulator with low operating hysteresis - has triac switching power to load with high thermal inertia |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2279150A1 (en) |
IT (1) | IT1038339B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0489462A2 (en) * | 1990-12-03 | 1992-06-10 | Koninklijke Philips Electronics N.V. | Improved system for triac trigger control in combination with a sensing element |
-
1974
- 1974-05-21 FR FR7417645A patent/FR2279150A1/en active Granted
-
1975
- 1975-05-21 IT IT23590/75A patent/IT1038339B/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0489462A2 (en) * | 1990-12-03 | 1992-06-10 | Koninklijke Philips Electronics N.V. | Improved system for triac trigger control in combination with a sensing element |
EP0489462A3 (en) * | 1990-12-03 | 1993-05-26 | N.V. Philips' Gloeilampenfabrieken | Improved system for triac trigger control in combination with a sensing element |
Also Published As
Publication number | Publication date |
---|---|
IT1038339B (en) | 1979-11-20 |
FR2279150B1 (en) | 1978-08-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |