GB1375605A – – Google Patents
GB1375605A – – Google Patents
Info
Publication number
GB1375605A
GB1375605A
GB1198172A
GB1198172A
GB1375605A
GB 1375605 A
GB1375605 A
GB 1375605A
GB 1198172 A
GB1198172 A
GB 1198172A
GB 1198172 A
GB1198172 A
GB 1198172A
GB 1375605 A
GB1375605 A
GB 1375605A
Authority
GB
United Kingdom
Prior art keywords
thermistor
current
temperature
solenoid
plate
Prior art date
1971-03-15
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
GB1198172A
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.)
1971-03-15
Filing date
1972-03-15
Publication date
1974-11-27
1971-03-15
Priority claimed from JP1448471A
external-priority
patent/JPS529120B1/ja
1972-03-15
Application filed
filed
Critical
1974-11-27
Publication of GB1375605A
publication
Critical
patent/GB1375605A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G05—CONTROLLING; REGULATING
G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
G05F1/10—Regulating voltage or current
G05F1/625—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc
G05F1/63—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc using variable impedances in series with the load as final control devices
G05F1/635—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc using variable impedances in series with the load as final control devices being Hall effect devices, magnetoresistors or thermistors
B—PERFORMING OPERATIONS; TRANSPORTING
B60—VEHICLES IN GENERAL
B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
B60Q1/38—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps
B60Q1/385—Electronic temporisation with relay amplification
B—PERFORMING OPERATIONS; TRANSPORTING
B60—VEHICLES IN GENERAL
B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 – B60Q9/00
B60Q11/005—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 – B60Q9/00 for lighting devices, e.g. indicating if lamps are burning or not
B60Q11/007—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 – B60Q9/00 for lighting devices, e.g. indicating if lamps are burning or not the lighting devices indicating change of drive direction
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
G05D23/192—Control of temperature characterised by the use of electric means characterised by the type of controller using a modification of the thermal impedance between a source and the load
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
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
H03K3/42—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
Abstract
1375605 Automatic control of current and temperature MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 15 March 1972 [15 March 1971(2)] 11981/72 Heading G3R [Also in Division H2] A control device comprises a thermistor associated with means for controlling the heat transfer to or from the thermistor whereby the current through the thermistor is prevented from exceeding a predetermined value. A load 13 is fed from a current source 10 by way of a PTC thermistor 11 and the winding of a solenoid 12 which controls the position, relatively to the thermistor, of a plate 14. With a normal current flow in the series circuit 11, 12, 13 the solenoid 12 is insufficiently energized and the plate 14 is held in physical contact with the thermistor 11 by springs 15. In this condition the plate 14 acts as a heat sink to the thermistor so that its temperature, and hence its resistance, remains within normal limits. If the current in the circuit 11, 12, 13 rises beyond the predetermined limit the solenoid 12 becomes energized sufficiently to remove the plate 14 from contact with the thermistor whereupon the temperature, and hence the resistance, thereof increases and the current flow therethrough reduced. In another embodiment a lamp is arranged to heat the thermistor and the control means is a shutter which can be interposed between the lamp and the thermistor. Fig.3 shows a temperature control arrangement wherein a second thermistor 22 senses the temperature of a heatable object 24 thereby to control the current flowing through the heating element 18. Other arrangements show the use of a thyristor, a transistor or a Zener diode or further the solenoid may be provided with two windings through one of which flows the charging and discharging current of a capacitor.
GB1198172A
1971-03-15
1972-03-15
Expired
GB1375605A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
JP1448471A
JPS529120B1
(en)
1971-03-15
1971-03-15
JP1448371
1971-03-15
Publications (1)
Publication Number
Publication Date
GB1375605A
true
GB1375605A
(en)
1974-11-27
Family
ID=26350428
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1198172A
Expired
GB1375605A
(en)
1971-03-15
1972-03-15
Country Status (6)
Country
Link
US
(1)
US3742308A
(en)
CA
(1)
CA956000A
(en)
FR
(1)
FR2130216B1
(en)
GB
(1)
GB1375605A
(en)
IT
(1)
IT957559B
(en)
NL
(1)
NL7203077A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2320145A
(en)
*
1996-12-06
1998-06-10
Switched Reluctance Drives Ltd
Current Limiter
1972
1972-02-09
US
US00224800A
patent/US3742308A/en
not_active
Expired – Lifetime
1972-02-11
CA
CA134,495A
patent/CA956000A/en
not_active
Expired
1972-03-08
NL
NL7203077A
patent/NL7203077A/xx
not_active
Application Discontinuation
1972-03-13
IT
IT48944/72A
patent/IT957559B/en
active
1972-03-14
FR
FR7208860A
patent/FR2130216B1/fr
not_active
Expired
1972-03-15
GB
GB1198172A
patent/GB1375605A/en
not_active
Expired
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2320145A
(en)
*
1996-12-06
1998-06-10
Switched Reluctance Drives Ltd
Current Limiter
US5995392A
(en)
*
1996-12-06
1999-11-30
Switched Reluctance Drives Limited
Current limiter
GB2320145B
(en)
*
1996-12-06
2000-11-22
Switched Reluctance Drives Ltd
Current limiter
Also Published As
Publication number
Publication date
US3742308A
(en)
1973-06-26
FR2130216A1
(en)
1972-11-03
NL7203077A
(en)
1972-09-19
FR2130216B1
(en)
1974-12-13
IT957559B
(en)
1973-10-20
DE2210022B2
(en)
1976-10-07
DE2210022A1
(en)
1972-10-12
CA956000A
(en)
1974-10-08
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Legal Events
Date
Code
Title
Description
1975-04-09
PS
Patent sealed [section 19, patents act 1949]
1979-01-31
746
Register noted ‘licences of right’ (sect. 46/1977)
1992-04-15
PE20
Patent expired after termination of 20 years
