US6147583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transformer assembly
Assignee: ARTESYN TECHNOLOGIES
•
Filing: 1999-05-26
•
Granted: 2000-11-14
•
Expires: 2019-05-26
Abstract
Abstract A transformer (1) for a printed circuit board (2) is provided with physically separate flat metal windings (6) which are chosen to take the highest or the two highest currents handled by the transformer (1). The lower currents which will often include the power input to the primary are printed on the surfaces (3,4) of the printed circuit board (2). The flat metal windings (5) may be pre-assembled with the core halves (6,7).
Inventors
- 👤 Karl Rinne
- 👤 Joe Duigan
- 👤 Brian Gaynor
- 👤 Frank Keane
- 👤 Sean Spelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:50
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/16; H05K1/165; H01; H01F; H01F27/00; H01F27/28; H01F27/2804; H01F27/2847; H05K1/02; H05K1/0213; H05K1/0263; H05K2201/00; H05K2201/08; H05K2201/083; H05K2201/086; H05K2201/09; H05K2201/09009; H05K2201/09063; H05K2201/10; H05K2201/10007; H05K2201/10166; H05K2203/00; H05K2203/14; H05K2203/1476; H05K3/00; H05K3/22; H05K3/222
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
127 words
A transformer comprising: a printed circuit board; a main low current winding comprising a printed winding for the transformer formed on the circuit board; a high current winding comprising a physically separate winding formed from a flat metal sheet and integral terminals formed by portion of the sheet; a core mounting means formed by core receiving through holes in the printed circuit board; a core formed from upper and lower core halves having portions extending respectively through the core receiving through holes and mounting the separate winding in register with the printed winding and in close contact therewith; means for connecting the core halves; and the printed winding incorporates an auxiliary winding for modified voltage output for other parts of a circuit of the printed circuit board.
Claim 2
Dependent Claim
127 words
A transformer comprising: a printed circuit board; a main low current winding comprising a printed winding for the transformer formed on the circuit board; a high current winding comprising a physically separate winding formed from a flat metal sheet and integral terminals formed by portion of the sheet; a core mounting means formed by core receiving through holes in the printed circuit board; a core formed from upper and lower core halves having portions extending respectively through the core receiving through holes and mounting the separate winding in register with the printed winding and in close contact therewith; means for connecting the core halves; and the printed winding incorporates an auxiliary winding for modified voltage output for other parts of a circuit of the printed circuit board.
Claim 3
Dependent Claim
26 words
A transformer as claimed in claim 1 in which there are two metal sheets, one on either side of the board, forming the high current winding.
Claim 4
Dependent Claim
29 words
A transformer as claimed in claim 1, in which there are two metal sheets, one on either side of the printed circuit board, forming two separate high current windings.
Claim 5
Dependent Claim
33 words
A transformer as claimed in claim 1, in which the printed circuit board is a multilayer board and the printed winding is printed on a plurality of surfaces of the printed circuit board.
Claim 6
Dependent Claim
17 words
A transformer as claimed in claim 1, in which there is a plurality of low current windings.
Claim 7
Dependent Claim
36 words
A transformer as claimed in claim 1, in which there are more than one printed winding which includes an auxiliary winding for modified voltage output for other parts of the circuit of the printing circuit board.
Claim 8
Dependent Claim
49 words
A transformer as claimed in claim 1, in which the printed winding incorporates an auxiliary winding for modified voltage output for other parts of the circuit of the printing circuit board and in which the auxiliary winding is used as a gate drive voltage source for field effect transistors.
Claim 9
Dependent Claim
52 words
A tansformer as claimed in claim 1, in which the printed winding incorporates an auxiliary winding for modified voltage output for other parts of the circuit of the printing circuit board and in which the auxiliary winding is used to control the timing signals for the circuit of the printed circuit board.
Claim 10
Dependent Claim
55 words
A transformer as claimed in claim 1 in which the printed circuit board has through holes for reception of the core and in which the core comprises two separate core halves for mounting on the two outermost surfaces of the board and means for releasably securing the core halves together for mounting on the board.
Claim 11
Dependent Claim
69 words
A transformer as claimed in claim 1 in which the printed circuit board has through holes for reception of the core and in which the core comprises two separate core halves for mounting on the two outermost surfaces of the board and means for releasably securing the core halves together for mounting on the board and in which the separate winding and a core half are a preformed unit.
Claim 12
Dependent Claim
130 words
A transformer comprising: a multi-layer printed circuit board; a main low current winding comprising a printed winding for the transformer formed on the circuit board; at least one auxiliary winding incorporated in the printed winding for modified voltage output for other parts of a circuit of the printed circuit board; a high current winding comprising a physically separate winding formed a flat metal sheet and integral terminals formed by portion of the sheet; a core mounting means formed by core receiving through holes in the printed circuit board; a core formed from upper and lower core halves having portions extending respectively through the core receiving through holes and mounting the separate winding in register with the printed winding and in close contact therewith; and means for connecting the core halves.
Claim 13
Dependent Claim
130 words
A transformer comprising: a multi-layer printed circuit board; a main low current winding comprising a printed winding for the transformer formed on the circuit board; at least one auxiliary winding incorporated in the printed winding for modified voltage output for other parts of a circuit of the printed circuit board; a high current winding comprising a physically separate winding formed a flat metal sheet and integral terminals formed by portion of the sheet; a core mounting means formed by core receiving through holes in the printed circuit board; a core formed from upper and lower core halves having portions extending respectively through the core receiving through holes and mounting the separate winding in register with the printed winding and in close contact therewith; and means for connecting the core halves.
Claim 14
Dependent Claim
51 words
A transformer as claimed in claim 11 in which there is more than one low current winding, at least one of which incorporates an auxiliary winding for modified voltage output for other parts of the circuit of the printed circuit board, and in which the auxiliary winding is a fractional winding.
Claim 15
Dependent Claim
26 words
A transformer as claimed in claim 11 in which there are two metal sheets, one on either side of the board, forming the high current winding.
Claim 16
Dependent Claim
29 words
A transformer as claimed in claim 11 in which there are two metal sheets, one on either side of the printed circuit board, forming two separate high current windings.
Claim 17
Dependent Claim
17 words
A transformer as claimed in claim 11 in which there is a plurality of low current windings.
Claim 18
Dependent Claim
119 words
A transformer comprising: a multi-layer printed circuit board; a plurality of main low current windings printed on different layers of the printed circuit board; at least one auxiliary low current winding printed on one of the layers of the printed circuit board said auxiliary low current winding having a current output different to that of the main low current windings for modified voltage output for other parts of the printed circuit board; a core formed from upper and lower core halves having portions extending respectively through the core receiving through holes and mounting a separate winding in register with at least one main low current printed winding and in close contact therewith; and means for connecting the core halves.
Claim 19
Dependent Claim
119 words
A transformer comprising: a multi-layer printed circuit board; a plurality of main low current windings printed on different layers of the printed circuit board; at least one auxiliary low current winding printed on one of the layers of the printed circuit board said auxiliary low current winding having a current output different to that of the main low current windings for modified voltage output for other parts of the printed circuit board; a core formed from upper and lower core halves having portions extending respectively through the core receiving through holes and mounting a separate winding in register with at least one main low current printed winding and in close contact therewith; and means for connecting the core halves.
Claim 20
Dependent Claim
16 words
A transformer as claimed in claim 16, in which the auxiliary winding is a fractional winding.
Claim 21
Dependent Claim
119 words
A transformer comprising: a multi-layer printed circuit board; a plurality of main low current windings printed on different layers of the circuit board; a plurality of auxiliary low current windings printed on one of the layers of the printed circuit board said auxiliary low current printed windings having a current output different to that of the main low current windings for modified voltage output for other parts of the printed circuit board; a core formed from upper and lower core halves having portions extending respectively through the core receiving through holes and mounting a separate winding in register with at least one main low current printed winding and in close contact therewith; and means for connecting the core halves.
Claim 22
Dependent Claim
119 words
A transformer comprising: a multi-layer printed circuit board; a plurality of main low current windings printed on different layers of the circuit board; a plurality of auxiliary low current windings printed on one of the layers of the printed circuit board said auxiliary low current printed windings having a current output different to that of the main low current windings for modified voltage output for other parts of the printed circuit board; a core formed from upper and lower core halves having portions extending respectively through the core receiving through holes and mounting a separate winding in register with at least one main low current printed winding and in close contact therewith; and means for connecting the core halves.
Claim 23
Dependent Claim
39 words
A transformer as claimed in claim 18, in which one auxiliary winding is used as a gate drive voltage source for field effect transistors and another auxiliary winding is used to control the timing signals the printed circuit board.
References Cited (Backward Citations)
GB1510084A
Cited
EP0267108A1
Cited
EP0318955A1
Cited
US4914561A
Cited
GB2252208A
Cited
US5321380A
Cited
US5929733A
Cited
US5694104A
Cited
GB2285892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-11-14 | 2004-05-15 | 2004-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-11-14 | 2008-05-15 | 2008-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-11-14 | 2012-05-15 | 2012-11-14 | $7700.00 | Window Closed / Lapsed |