GB1211223A - Electrical power supplies - Google Patents

Electrical power supplies

Info

Publication number
GB1211223A
GB1211223A GB1064467A GB1064467A GB1211223A GB 1211223 A GB1211223 A GB 1211223A GB 1064467 A GB1064467 A GB 1064467A GB 1064467 A GB1064467 A GB 1064467A GB 1211223 A GB1211223 A GB 1211223A
Authority
GB
United Kingdom
Prior art keywords
capacitor
source
supply
failure
main
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
Application number
GB1064467A
Inventor
Miles David Adam Bulky Rackowe
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.)
TDK Lambda UK Ltd
Original Assignee
Coutant Electronics 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.)
Filing date
Publication date
Application filed by Coutant Electronics Ltd filed Critical Coutant Electronics Ltd
Priority to GB1064467A priority Critical patent/GB1211223A/en
Publication of GB1211223A publication Critical patent/GB1211223A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

1,211,223. Auxiliary supply sources. COUTANT ELECTRONICS Ltd. 31 Jan., 1968 [7 March, 1967], No. 10644/67. Heading H2H A D.C. supply obtained from an A.C. source by way of a rectifier and provided with a filter capacitor is maintained, should momentary failure of the A.C. source occur, by the discharge of a further capacitor which may either assist or take over from the filter capacitor thereby ensuring continuance of the D.C. supply during the failure. A main D.C. supply obtained by means of a rectifier from an A.C. source is provided with a filter capacitor CR which potential across which varies about a mean value as it charges and discharges during operation. A second capacitor C2 connected to the main D.C. terminals by way of a resistor R2 charges up to the mean potential of the capacitor CR. An auxiliary D.C. supply is formed by a capacitor C1 which is normally charged to a higher potential than the potential of the main D.C. supply and, if desired, this auxiliary D.C. supply may be obtained from the same A.C. source as is the main D.C. supply. Should a failure of the A.C. source occur the potential of the cathode and gate of a controlled rectifier SOR1 become such that the rectifier becomes conductive whereupon the charge on the capacitor C1 is dumped into capacitor CR to maintain the function of capacitor CR during the failure. When the A.C. source is restored the controlled rectifier SCR1 becomes non-conductive thereby allowing the capacitor C1 to become charged once again. In a second embodiment the arrangement is such that upon a failure of the A.C. source the capacitor CR is isolated from the main A.C. source and its function taken over by the capacitor C1.
GB1064467A 1967-03-07 1967-03-07 Electrical power supplies Expired GB1211223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1064467A GB1211223A (en) 1967-03-07 1967-03-07 Electrical power supplies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1064467A GB1211223A (en) 1967-03-07 1967-03-07 Electrical power supplies

Publications (1)

Publication Number Publication Date
GB1211223A true GB1211223A (en) 1970-11-04

Family

ID=9971642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1064467A Expired GB1211223A (en) 1967-03-07 1967-03-07 Electrical power supplies

Country Status (1)

Country Link
GB (1) GB1211223A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159351A (en) * 1984-05-23 1985-11-27 Seiko Instr & Electronics Charge/discharge circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159351A (en) * 1984-05-23 1985-11-27 Seiko Instr & Electronics Charge/discharge circuit

Similar Documents

Publication Publication Date Title
US4012310A (en) Electrostatic water treatment system
GB1170177A (en) Switching Arrangement for Firing Detonators.
MY113396A (en) Fast acting control system
GB1357409A (en) Battery charging circuit
US3085234A (en) Magnetostatic relay
GB1211223A (en) Electrical power supplies
US3453453A (en) One-shot circuit with short retrigger time
GB1231910A (en)
US2419606A (en) Linear saw-tooth generator
GB1330251A (en) Thyristor switch-arrangement
US2935648A (en) Bridge wire triggered spark gap
US2922079A (en) Apparatus for producing flash illumination
GB684648A (en) Improvements in and relating to wave generators
US2979640A (en) Spark gap
US3132586A (en) Electric detonator
GB1031462A (en) Voltage stabilisers
GB1443198A (en) Emission spectroscopy apparatus including an arc discharge supply
ES340053A1 (en) Energizing circuit for degaussing apparatus
GB1207912A (en) Electric motor speed control
US3002094A (en) Electric apparatus
US2799002A (en) System of excitation and of regulation of the output potential of electrostatic generators
US2500311A (en) Electric fence
GB868998A (en) Improvements in or relating to transistor circuits
GB1356609A (en) Circuit for rapid or boost charging accumulators
JPS54140893A (en) Laser unit

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee