GB1222279A – Circuitry for sequentially energizing a plurality of loads
– Google Patents
GB1222279A – Circuitry for sequentially energizing a plurality of loads
– Google Patents
Circuitry for sequentially energizing a plurality of loads
Info
Publication number
GB1222279A
GB1222279A
GB42295/68A
GB4229568A
GB1222279A
GB 1222279 A
GB1222279 A
GB 1222279A
GB 42295/68 A
GB42295/68 A
GB 42295/68A
GB 4229568 A
GB4229568 A
GB 4229568A
GB 1222279 A
GB1222279 A
GB 1222279A
Authority
GB
United Kingdom
Prior art keywords
rectifier
scri
circuit
loads
scrii
Prior art date
1967-09-19
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
GB42295/68A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokai Rika Co Ltd
Original Assignee
Tokai Rika Co Ltd
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.)
1967-09-19
Filing date
1968-09-05
Publication date
1971-02-10
1968-09-05
Application filed by Tokai Rika Co Ltd
filed
Critical
Tokai Rika Co Ltd
1971-02-10
Publication of GB1222279A
publication
Critical
patent/GB1222279A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
H03K17/725—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for ac voltages or currents
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
H—ELECTRICITY
H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
H05B47/10—Controlling the light source
H05B47/155—Coordinated control of two or more light sources
Abstract
1,222,279. Control systems for sequentially energizing loads. TOKAI RIKA DENKI SEISAKUSHO K.K. 5 Sept., 1968 [19 Sept., 1967], No. 42295/68. Heading H2H. [Also in Divisions G4-G6] A control system for sequentially energizing a plurality of electrical loads, such as lamps, relays or solenoids, and simultaneously deenergizing all the loads at a predetermined time after the last load has been energized comprises the circuit shown in the Figure, in which loads L1 . . . Ln (in this case lamps) are series-connected with respective silicon controlled rectifiers SCRI-1 … SCRI-n across an A.C. supply and are interconnected with variable resistors, diodes and capacitors providing firing circuits to sequentially energize the rectifiers SCRI-2 … SCRI-n at predetermined times after energization of the rectifier SCRI-1 by a control circuit II. This is effected by application of the A.C. potential to the circuit II, each stage of the load circuit I being given a time constant having a period longer than that of the A.C. supply. When the rectifier SCRI-n becomes conductive, gate current is applied to rectifier SCRII whose energization cuts off the gate current to rectifier SCRI-1 and so de-energizes the load circuit I. When the current through rectifier SCRII decreases below its holding value, this rectifier cuts off to allow subsequent energization of the rectifier SCRI-1 and repetition of the cycle previously described. The load circuit I may alternatively be controlled by a circuit III including a photoconductive element P, the arrangement being such that the rectifier SCRI-1 is energized when the intensity of illumination incident on the element P decreases below a predetermined value. A diode D III-2 in the circuit III ensures that the rectifier SCRI-1 is cut off when rectifier SCRII is energized, so that the above-described cycle of lamp operation continues for so long as the illumination intensity is below the predetermined value. The detailed functioning of the various circuit components is described.
GB42295/68A
1967-09-19
1968-09-05
Circuitry for sequentially energizing a plurality of loads
Expired
GB1222279A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP42059631A
JPS4814871B1
(en)
1967-09-19
1967-09-19
Publications (1)
Publication Number
Publication Date
GB1222279A
true
GB1222279A
(en)
1971-02-10
Family
ID=13118757
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB42295/68A
Expired
GB1222279A
(en)
1967-09-19
1968-09-05
Circuitry for sequentially energizing a plurality of loads
Country Status (3)
Country
Link
US
(1)
US3593033A
(en)
JP
(1)
JPS4814871B1
(en)
GB
(1)
GB1222279A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2321805A
(en)
*
1997-01-22
1998-08-05
Lin Yuan
Sequential lighting control for a lighting string
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5044395U
(en)
*
1973-08-18
1975-05-06
JPS5828776B2
(en)
*
1977-05-17
1983-06-17
株式会社ケンウッド
Output control circuit
US4885485A
(en)
*
1988-08-30
1989-12-05
Vtc Incorporated
CMOS Output buffer providing mask programmable output drive current
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3450901A
(en)
*
1966-04-11
1969-06-17
Weltronic Co
Sequencing circuit
US3456131A
(en)
*
1966-12-28
1969-07-15
Gen Electric
Sequential flasher circuits
1967
1967-09-19
JP
JP42059631A
patent/JPS4814871B1/ja
active
Pending
1968
1968-08-27
US
US755623A
patent/US3593033A/en
not_active
Expired – Lifetime
1968-09-05
GB
GB42295/68A
patent/GB1222279A/en
not_active
Expired
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2321805A
(en)
*
1997-01-22
1998-08-05
Lin Yuan
Sequential lighting control for a lighting string
GB2321805B
(en)
*
1997-01-22
2001-08-22
Yuan Lin
An electrical go-go light belt
Also Published As
Publication number
Publication date
US3593033A
(en)
1971-07-13
JPS4814871B1
(en)
1973-05-10
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