US5872492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit boardless common mode filter and transformer connector
Assignee: Amphenol Corp
•
Filing: 1996-06-03
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Granted: 1999-02-16
•
Expires: 2016-06-03
Abstract
Abstract A common mode filter with a choke portion and an electrical isolation portion is made up of two core members, each core member having two legs. A first winding is wrapped around the first leg of the first core member to form a first coil of the isolation section, but the secondary coil of the isolation section and both coils of the choke section are formed by a single winding which may be a single wire or may include a portion connected through a circuit board. The ends of the second winding may be shaped so as to form the mating sections of a pair of RJ contacts, while the ends of the first winding may be shaped to form pins for insertion into openings in a LAN interface card, the core structures being positioned in a rear chamber of an RJ connector.
Inventors
- 👤 Kamal Shawiky Boutros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:40
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/42; H03H7/425; H03H7/427; H01; H01F; H01F38/00; H01F38/48; H01F38/50; H01R; H01R13/00; H01R13/66; H01R13/6608; H01R13/6633; H01R13/719; H01F37/00; H01R2201/00; H01R2201/04; H01R24/00; H01R24/60; H01R24/62; H01R24/64; H03H1/00; H03H2001/0021; H03H2001/005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
174 words
An electrical connector, comprising: an electrical connector housing having an opening arranged to receive a mating connector; a first core structure including first and second core sections, said said first core structure forming the core of a transformer, said transformer including a primary winding comprising a coil wrapped around the first core section; and a secondary winding comprising a coil wrapped around the second core section; a second core structure including third and fourth core sections, said second core structure forming a common core for first and second choke coils, the first choke coil comprising a coil wrapped around the third core section and the second choke coil comprising a coil wrapped around the fourth core section, wherein said coils wrapped around the second, third, and fourth core sections are formed by a single wire extending continuously around and between said first and second core structures, thereby eliminating the need for a circuit board internal to the connector housing in order to connect the secondary winding of the transformer to the two choke coils.
Claim 2
Dependent Claim
174 words
An electrical connector, comprising: an electrical connector housing having an opening arranged to receive a mating connector; a first core structure including first and second core sections, said said first core structure forming the core of a transformer, said transformer including a primary winding comprising a coil wrapped around the first core section; and a secondary winding comprising a coil wrapped around the second core section; a second core structure including third and fourth core sections, said second core structure forming a common core for first and second choke coils, the first choke coil comprising a coil wrapped around the third core section and the second choke coil comprising a coil wrapped around the fourth core section, wherein said coils wrapped around the second, third, and fourth core sections are formed by a single wire extending continuously around and between said first and second core structures, thereby eliminating the need for a circuit board internal to the connector housing in order to connect the secondary winding of the transformer to the two choke coils.
Claim 3
Dependent Claim
25 words
A connector as claimed in claim 1, wherein ends of the single wire are shaped to form mating sections of a pair of RJ contacts.
Claim 4
Dependent Claim
30 words
A connector as claimed in claim 1, wherein ends of the first winding are shaped for electrical connection to a printed circuit board on which the connector housing is mounted.
Claim 5
Dependent Claim
215 words
An electrical connector, comprising: an electrical connector housing having an opening arranged to receive a mating connector; a first core structure including first and second core sections, said said first core structure forming the core of a transformer, said transformer including a primary winding comprising a coil wrapped around the first core section; and a secondary winding comprising a coil wrapped around the second core section; a second core structure including third and fourth core sections, said second core structure forming a common core for first and second choke coils, the first choke coil comprising a coil wrapped around the third core section and the second choke coil comprising a coil wrapped around the fourth core section, wherein said connector housing is mounted on a circuit board, ends of said primary winding are electrically connected to circuitry on the circuit board, and the first and second choke coils are electrically connected to the secondary winding of the transformer by terminating ends of said first and second choke coils and ends of said transformer secondary winding to traces on said circuit board on which the connector housing is mounted, thereby eliminating the need for a circuit board internal to the connector in order to connect the secondary winding of the transformer to the two choke coils.
Claim 6
Dependent Claim
215 words
An electrical connector, comprising: an electrical connector housing having an opening arranged to receive a mating connector; a first core structure including first and second core sections, said said first core structure forming the core of a transformer, said transformer including a primary winding comprising a coil wrapped around the first core section; and a secondary winding comprising a coil wrapped around the second core section; a second core structure including third and fourth core sections, said second core structure forming a common core for first and second choke coils, the first choke coil comprising a coil wrapped around the third core section and the second choke coil comprising a coil wrapped around the fourth core section, wherein said connector housing is mounted on a circuit board, ends of said primary winding are electrically connected to circuitry on the circuit board, and the first and second choke coils are electrically connected to the secondary winding of the transformer by terminating ends of said first and second choke coils and ends of said transformer secondary winding to traces on said circuit board on which the connector housing is mounted, thereby eliminating the need for a circuit board internal to the connector in order to connect the secondary winding of the transformer to the two choke coils.
Claim 7
Dependent Claim
29 words
A connector as claimed in claim 4, wherein one of end of each of the choke coils is shaped to form mating sections of a pair of RJ contacts.
Claim 8
Dependent Claim
18 words
A connector as claimed in claim 4, further comprising a second transformer and third and fourth choke coils.
References Cited (Backward Citations)
US4795991A
Cited
US4772224A
Cited
US5015204A
Cited
US5132655A
Cited
US5069641A
Cited
US5139442A
Cited
US5282759A
Cited
US5397250A
Cited
US5587884A
Cited
US5736910A
Cited
US5687233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-02-15 | 2002-08-17 | 2003-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-15 | 2006-08-17 | 2007-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-15 | 2010-08-17 | 2011-02-16 | $7700.00 | Window Closed / Lapsed |