Patent US4066955A successfully refreshed from Google Patents.
US4066955A
Expired / Lapsed
US
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High voltage transformer winding assembly with multiple frequency tuning
Assignee: RCA Licensing Corp
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Filing: 1975-12-29
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Granted: 1978-01-03
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Expires: 1995-12-29
Abstract
Abstract A high voltage transformer winding assembly is disclosed which enables tuning to preferably provide a rectangular pulse output for improving voltage regulation. The winding assembly comprises a pair of winding subassemblies mounted on opposite legs of a magnetic core. Each winding subassembly is provided with a plurality of windings. The plurality of windings of the two subassemblies are interconnected to form a plurality of winding pairs. The interconnection is such as to form an a-c null or minimal a-c voltage substantially at the connection point between the windings making up a winding pair. When the start turns of the windings are interconnected to form the winding pairs the a-c null of each winding pair appears adjacent the core to reduce the likelihood of corona discharge. The plurality of winding pairs are connected in d-c series aiding by means of diodes which provide a-c isolation between the winding pairs. By selecting the spacing between windings of a subassembly and the height and width of such windings one of the resonant frequencies making up the output pulse of the winding assembly is determined in frequency and amplitude. Additionally, by selecting the spacing between subassemblies the aggregate leakage inductance and intersubassembly capacitance are altered to determine the frequency and amplitude of another of the frequencies making up the output pulse.
Inventors
- 👤 Charles E. Suthers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:18
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
174 words
In a television receiver, a transformer for providing substantially rectangular shaped high-voltage output pulses to the cathode ray tube of said television receiver in response to input pulses, said transformer comprising: a magnetic core having at least a pair of legs, a primary winding mounted on at least one of said legs and responsive to said input pulses to produce magnetic flux in said core, a high voltage winding assembly comprised of first and second subassemblies of windings, each subassembly being mounted on one of the legs of said core, means interconnecting the windings of said first and second subassemblies to form a plurality of winding pairs, each winding pair being comprised of a winding of said first subassembly and a winding of said second subassembly, the interconnection being such that said windings are connected in series aiding relationship, said pair of legs and the subassemblies mounted thereon being spaced from each other by a distance selected to enhance the leakage inductance to produce substantially rectangular output pulses from said high voltage winding assembly.
Claim 2
Dependent Claim
174 words
In a television receiver, a transformer for providing substantially rectangular shaped high-voltage output pulses to the cathode ray tube of said television receiver in response to input pulses, said transformer comprising: a magnetic core having at least a pair of legs, a primary winding mounted on at least one of said legs and responsive to said input pulses to produce magnetic flux in said core, a high voltage winding assembly comprised of first and second subassemblies of windings, each subassembly being mounted on one of the legs of said core, means interconnecting the windings of said first and second subassemblies to form a plurality of winding pairs, each winding pair being comprised of a winding of said first subassembly and a winding of said second subassembly, the interconnection being such that said windings are connected in series aiding relationship, said pair of legs and the subassemblies mounted thereon being spaced from each other by a distance selected to enhance the leakage inductance to produce substantially rectangular output pulses from said high voltage winding assembly.
Claim 3
Dependent Claim
42 words
The transformer recited in claim 1 wherein said primary winding comprises first and second sections each section being mounted on one of the legs of said core and the first and second subassemblies being mounted over said first and second sections, respectively.
Claim 4
Dependent Claim
38 words
The transformer recited in claim 1 wherein said means interconnecting said windings include conductor means interconnecting windings of said first and second subassemblies to form said winding pairs and diodes interconnecting said winding pairs in series aiding relationship.
Claim 5
Dependent Claim
45 words
The transformer recited in claim 3 wherein said electrical conductor interconnects the start turns of each of the windings of each winding pair and the windings of each winding pair are wound to be symmetrical to form an a-c null substantially at said start turns.
Claim 6
Dependent Claim
183 words
In a television receiver, a transformer for generating high voltage output pulses for the cathode ray tube of said television receiver in response to input pulses, said transformer comprising: a magnetic core having at least a pair of legs, a primary winding mounted on at least one of said legs and responsive to said input pulses to produce magnetic flux in said core, a high voltage winding assembly comprised of first and second subassemblies of windings, each subassembly being mounted on one of the legs of said core, electrical connection means interconnecting the windings of said first and second subassemblies to form a plurality of winding pairs, each winding pair being comprised of a winding of said first subassembly and a winding of said second subassembly, diode means interconnecting said winding pairs in series aiding relationship and providing a-c isolation between winding pairs, the height and width of each of said windings and the spacing between windings within a subassembly being selected in conjunction with the spacing between said legs and subassemblies mounted thereon to realize a predetermined shape for said output pulses.
Claim 7
Dependent Claim
183 words
In a television receiver, a transformer for generating high voltage output pulses for the cathode ray tube of said television receiver in response to input pulses, said transformer comprising: a magnetic core having at least a pair of legs, a primary winding mounted on at least one of said legs and responsive to said input pulses to produce magnetic flux in said core, a high voltage winding assembly comprised of first and second subassemblies of windings, each subassembly being mounted on one of the legs of said core, electrical connection means interconnecting the windings of said first and second subassemblies to form a plurality of winding pairs, each winding pair being comprised of a winding of said first subassembly and a winding of said second subassembly, diode means interconnecting said winding pairs in series aiding relationship and providing a-c isolation between winding pairs, the height and width of each of said windings and the spacing between windings within a subassembly being selected in conjunction with the spacing between said legs and subassemblies mounted thereon to realize a predetermined shape for said output pulses.
Claim 8
Dependent Claim
45 words
The transformer recited in claim 5 wherein said electrical connection means comprises electrical conductors interconnecting the start turns of the windings comprising each winding pair and the windings of each winding pair being wound symmetrical to form an a-c null substantially at said start turns.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |