GB734273A - Improvements in or relating to transformers - Google Patents

Improvements in or relating to transformers

Info

Publication number
GB734273A
GB734273A GB5876/52A GB587652A GB734273A GB 734273 A GB734273 A GB 734273A GB 5876/52 A GB5876/52 A GB 5876/52A GB 587652 A GB587652 A GB 587652A GB 734273 A GB734273 A GB 734273A
Authority
GB
United Kingdom
Prior art keywords
secondary winding
voltage
winding
open
starting voltage
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
GB5876/52A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB734273A publication Critical patent/GB734273A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge lamps

Abstract

734,273. Transformers; supply systems for space discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 6, 1952 [March 9, 1951], No. 5876/52. Classes 38 (2) and 38 (4). A transformer for feeding a capacitive load whose starting voltage is higher than its working voltage, such as a gas- or vapour-filled discharge tube 5 serially connected with a condenser 4, has a main secondary winding 9 closely coupled to or in part identical with the primary winding 3 and which produces .an open-circuit voltage substantially greater than the starting voltage, and an auxiliary secondary winding 10 coupled loosely, with the primary winding and. connected in oppsoition to the secondary winding 9 to reduce the resultant open-circuit voltage to not less than the starting voltage, it being stated that the flux linked with the auxiliary winding 10 is the same in both the open-circuit and working conditions. As shown, an additional lamp 13 may be supplied with lagging current from another secondary winding 12 and the transformer core 1 has magnetic shunts 7, 11 to produce the required leakage flux paths.
GB5876/52A 1951-03-09 1952-03-06 Improvements in or relating to transformers Expired GB734273A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL734273X 1951-03-09

Publications (1)

Publication Number Publication Date
GB734273A true GB734273A (en) 1955-07-27

Family

ID=19820371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5876/52A Expired GB734273A (en) 1951-03-09 1952-03-06 Improvements in or relating to transformers

Country Status (1)

Country Link
GB (1) GB734273A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2400245A (en) * 2003-04-01 2004-10-06 Power Gems Ltd Ignition system for a high-frequency high-intensity discharge lamp system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2400245A (en) * 2003-04-01 2004-10-06 Power Gems Ltd Ignition system for a high-frequency high-intensity discharge lamp system
GB2400245B (en) * 2003-04-01 2005-09-28 Power Gems Ltd Ignition system for a high-frequency high-intensity discharge lamp system

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