GB2351191A - Multi-way light switch - Google Patents

Multi-way light switch Download PDF

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Publication number
GB2351191A
GB2351191A GB9913971A GB9913971A GB2351191A GB 2351191 A GB2351191 A GB 2351191A GB 9913971 A GB9913971 A GB 9913971A GB 9913971 A GB9913971 A GB 9913971A GB 2351191 A GB2351191 A GB 2351191A
Authority
GB
United Kingdom
Prior art keywords
alternative
way
ref
way lighting
control
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.)
Withdrawn
Application number
GB9913971A
Other versions
GB9913971D0 (en
Inventor
Peter James Wetton
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.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9913971A priority Critical patent/GB2351191A/en
Publication of GB9913971D0 publication Critical patent/GB9913971D0/en
Publication of GB2351191A publication Critical patent/GB2351191A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/041—Controlling the light-intensity of the source
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The switching arrangement has a plurality of parallel connected press release switches providing input to a bistable/latching circuit. Pressing or releasing any of the parallel switches results in a change of state of the output of the bistable/latching circuit, the output being used to control the energisation of an incandescent lamp. The bistable/latching circuit comprises a series of set/reset relay coils operating at 24v D.C. and the circuitry may be housed in a separate junction box or integrated into a ceiling rose.

Description

2351191 ALTERNATIVE TO 2-WAY SW1 i k-niiN
DESCRIPTION
The Alternative to 2-way Switching invention relates to the replacement of the traditional 2way lighting circuit. Used domestically, the principal of which; is the ability to control a light source from more than one location, i.e. controlling an upstairs light from the ground floor and first floor.
The existing circuit is well established but suffers from the following:
A technical ability is required to implement the installation.
Special switches (2-way and intermediate) and cables (3-core and earth) are required.
The switches are integral in their design; therefore any additional switch would require this integrity to be broken. This could result in the entire installation being disrupted, a waste of material, cost and time.
New Installation My invention breaks away from the switch integrity of the existing system. Using this invention, new switches may be added in parallel from any new location as required. All switches are of the same type (press release). Cables used are 2-core + earth throughout the installation.
Existing 1-Way Installation To enable the adaptation from 1 -way to a 2-way lighting circuit, the existing light connection (i.e. ceiling rose) is replaced with my invention. The existing switch is replaced with a press release switch. Any additional switches can then be connected in parallel with the invention. All existing wiring is undisturbed.
Existing 2-Way Installation My invention is not suitable for an existing 2-way installation, unless all the present wiring is removed between the switch drops and re-wired separately back to the invention and the switches replaced (press release).
Using this invention as a new installation would allow any future changes to be adaptable (i.e. adding/removing switches with no disruption to the existing system).
This would save on labour and materials. Little technical ability would be required for the installation or adaptation.
2 - The invention incorporates a latching relay. This addition to the bistable circuit better emulates the traditional switch. Power fluctuation or loss once re-established returns the light source to its original condition.
Figure 1 (1/7) Components and Their Use Power Supply As shown in Figure 1 (1/7), the D.C. power supply consists of voltage droppers (Rl, R2) A.C. rectification (Rect 1), D.C. smoothing (Cl), stabilisation 51 volts (R3, ZI) R4, R5 and contact RLB/I create a common reference point to the above 51 volt supply.
Additional smoothing and stabilisation Z2/R6/C2/C5 for coils RLB/RLC (RES) Z3/R7/C3/C4 for coils RLA/RLC (SET) The bi-stable circuit consists of press release switches (P.B/I... PB/3) limiting resistors (R4... R7) relays RLA and RLB.
The latching circuit consists of relay RLC incorporating two coils (SET and RES). This is required as a memory if mains failure/fluctuations occur. Please note relays RLA/RLB/RLC are all sub-miniature 24v D.C. operated.
The lamp driver consists of R9, RLC/I contact enabling gate signal for TRIAC (TRI) to trigger conduction.
3 Table 1 (117)
Reference will be made to this table in the Circuit Description/Operation.
Circuit Description 1 Operation
Row A) Circuit in rest state no relays energised lamp not lit.
Row B) Pressing either PB/1... PB/3 will via RLB/1... RLB/2 energise RLA/RLC (SET) RLA/1 contact closes, RL13/RLC (RES) will not energise due to the shunting effect of R4, coil voltage needs to be greater than 14 volts to energise.
RLC/1 closes triggering TRIAC (TR1) into conduction turning lamp on.
Row C) Release selected PB/1... 3 will now energise RLB due to the removal of the shunt effect.
RLA/RLC (SET) stay energised.
Row D) Operating either PB/1... PB/3 de-energises RLA/RLC (SET) by the shunting effect of R5. RLA/2 contact closes, energises RLC (RES) coil, RLC/1 contact opens switching off TRIAC (TR1) turning lamp off.
Releasing selected PB/1... PB/3 de-energises all relays.
Figure 2 (217) shows the copper track view of the printed circuit board with component overlay (2.0 magnification).
The diameter is crucial as it fits into a manufactured batten holder. This will allow demonstration as a working model.
Figure 3 (317) is the working copper track layout used in the process of producing a printed circuit board.
Figure 4 (4/7) shows variations available for the invention to be housed in.
Figure 5 (5/7) is a standard 2-way lighting circuit. This is used for comparing against the invention of Figure 6 (5/7). This highlights the invention's flexibility of adding or removing switches in a parallel system to that of the intractable standard serial system.
Figure 7 (5/7) is a simple block diagram of the invention.
A commercial installation lay-out is shown in drawing Figure 9 (7/7) this consists of two modules, each module would be fed by a 3-phase supply and neutral, a built in 24 volt D.C. control voltage (SELV), 3 contactors, 3 P.C.B. cards as shown in drawing Figure 8 (6/7) and 9 miniature circuit breakers controlling the lighting circuits. All electrical connections would be plug and socket allowing for fast installation / replacement.
DRUINGS PnGE 117... SCHEMTIC FIGURE 1 PnGE 217.... MnGNIFIED LnY-OUT.. FIGURE 2 PnGE 3/7 ETCHED BOnRD FIGURE 3 PnGE 1/7. CONFIGURnTIONS FIGURE 1 PnGE 5/7 STANDnRD 2-WAY FIGURE 5 pnGE 5/7 INVENTION 2-WnY FIGURE 6 pnGE 5/7 BLOCK DInGRnM FIGURE 7 PnGE 6/7...COMMERCInL BOnRD....FIGURE 8 PnGE 7/7....COMMERCInL LM-OUT. FIGURE 9 P)

Claims (6)

  1. ALTERNATIVE TO 2-WAY SVAIMN 1) An alternative to 2-way Lighting allows control of a Lamp / Contactor in parallel as opposed to traditional series control.
  2. 2) An alternative to 2-way Lighting claimed in Claims 1 will consist of an electrical circuit with the following building blocks: power supply, bi-stable, latching and output driver. Ref Drawing 5/7 Figure 7.
  3. 3) An alternative to 2-way Lighting claimed in Claims 1,2 will consist of a printed circuit board and its components mounted internally into a light fitting /junction box. Ref.. Drawing 4/7 Figure 4.
  4. 4) An alternative to 2-way Lighting claimed in Claims 1,2 will have Claim 2 repeated several times and housed in a steel enclosure. Ref. Drawing 7/7 Figure 9.
  5. 5) An alternative to 2-way Lighting claimed in Claims 1, 2, 4 will have multiple out-puts each of which will control the operation of a 3 phase 415 volt electrical contactor. Ref. Drawing 6/7 Figure 8.
  6. 6) An alternative to 2-way Lighting claimed in Claims 1, 2, 4, 5 will have an isolated 24 volt D.C. control volta e (SELV) operating said contactor. 9
GB9913971A 1999-06-16 1999-06-16 Multi-way light switch Withdrawn GB2351191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9913971A GB2351191A (en) 1999-06-16 1999-06-16 Multi-way light switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9913971A GB2351191A (en) 1999-06-16 1999-06-16 Multi-way light switch

Publications (2)

Publication Number Publication Date
GB9913971D0 GB9913971D0 (en) 1999-08-18
GB2351191A true GB2351191A (en) 2000-12-20

Family

ID=10855430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9913971A Withdrawn GB2351191A (en) 1999-06-16 1999-06-16 Multi-way light switch

Country Status (1)

Country Link
GB (1) GB2351191A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011482A (en) * 1975-08-28 1977-03-08 Seib James N Electric circuit control system using exclusive "or" gate
US4090107A (en) * 1976-12-08 1978-05-16 Seib James N Electric circuit control system using logic device
GB2148629A (en) * 1983-10-13 1985-05-30 Lutron Electronics Co Wall box dimmer switch with plural remote control switches
US4525634A (en) * 1983-05-10 1985-06-25 Southard James S Alternating current switching device
GB2273402A (en) * 1991-08-29 1994-06-15 Genlyte Group Inc Lighting system with remote and master on/off control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011482A (en) * 1975-08-28 1977-03-08 Seib James N Electric circuit control system using exclusive "or" gate
US4090107A (en) * 1976-12-08 1978-05-16 Seib James N Electric circuit control system using logic device
US4525634A (en) * 1983-05-10 1985-06-25 Southard James S Alternating current switching device
GB2148629A (en) * 1983-10-13 1985-05-30 Lutron Electronics Co Wall box dimmer switch with plural remote control switches
GB2273402A (en) * 1991-08-29 1994-06-15 Genlyte Group Inc Lighting system with remote and master on/off control

Also Published As

Publication number Publication date
GB9913971D0 (en) 1999-08-18

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)