Patent
Inductive element, particularly repeater
Baum Helmut,Heinz Pfizenmaier,Ewald Schmidt,Franz Strauss +3 more
- 26 May 1984
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TL;DR: In this paper, an inductive element, particularly repeater, having at least one coil (2, 3 resp. 30 resp. 56) arranged on an insulating support is described.
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Abstract: Inductive element, particularly repeater, having at least one coil (2, 3 resp. 37, 38 resp. 55) arranged on an insulating support (1 resp. 30 resp. 50) in the form of printed conducting tracks (10 to 13 resp. 31 to 36 resp. 51 to 54), as well as a closed ferrite core (6 resp. 41 resp. 56). The insulating support (1 resp. 30 resp. 50) is comprised of a resilient material which, after deformation, automatically and resiliently returns to its plane. In the insulating support (1 resp. 30 resp. 50) recesses (4, 5 resp. 39, 40 resp. 58) are provided to receive the ferrite core (6 resp. 41 resp. 56) as well as insertion slots (7, 8 resp. 42, 43 resp. 57) opening in the recesses for the core (6 resp. 41 resp. 56). The bridge (15 resp. 48 resp. 60) traversing the ferrite core (6 resp. 41 resp. 56) and the segment (16 resp. 45 resp. 61) of the insulating support (1 resp. 30 resp. 50) which is delimited by two adjacent slots (7, 8, resp. 42, 43) form together a resilient tongue (17 resp. 46 resp. 59) which may be lifted from the plane of the insulating support (1 resp. 30 resp. 50) for inserting the core (6 resp. 41 resp. 56) into the recesses (4, 5 resp. 39, 40 resp. 58) and which returns to its place in the plane after having being released, due to its own resilience, the tongue bridge (15 resp. 48 resp. 60) centering and unloosably holding the ferrite core (6 resp. 41 resp. 56) in the recesses (4, 5 resp. 39, 40 resp. 58).
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Citations
Patent
Low profile printed circuit board
Paul W. Godek,Michael J. Grennan +1 more
- 06 Nov 1992
TL;DR: In this article, a low-profile printed circuit board including a substrate having at least one planar magnetic element supported thereon is presented, where electrical communication is made from one side of the board to the other side via plated through holes provided in the substrate.
76
Patent
High-frequency component
Heinz Pfizenmaier,Ewald Schmidt +1 more
- 18 Feb 1988
TL;DR: In this paper, a high-frequency transformer is proposed in which at least one elastic carrier is constructed with openings (22 to 29, 52, 69, 73, 74) and also with cutouts (30 to 33, 53, 70, 71, 75, 76, 77) in such a way that the regions on the carrier delimited by the cutouts form a tongue (72, 78), which may be lifted to insert a magnetic core (13 to 16).
2
Patent
Microwave tubular core transformer
Epple Ralf,Wendel Wolfgang +1 more
- 24 Dec 1993
TL;DR: In this paper, a tubular core microwave transformer with printed transformer windings for printed microwave circuits arranged on laminated support boards is provided in accordance with the invention of two joined half shells (2, 3) and passes with its legs (8) through one recess (9) each in the support board on which the winding conductor tracks (5, 6) have minimum lengths.
2
Patent
Electronic cross-level detection system
Wesley H. Patton,Jeffrey L. Thompson +1 more
- 01 Aug 1984
TL;DR: In this paper, an electronic levelling apparatus using an inclinometer mounted to a platform for sensing deviations from the horizontal and generating an output signal representative thereof, filtering the output signal to remove electromagnetic and radio frequency interference, level-shifting the filtered in-sensor output signal, determining positive and negative voltage level shifts to generate a level control signal therefrom and transmitting the level-control signal to an actuating mechanism for maintaining the platform level.
2
References
Patent
Mounting ferrite core of transformer on circuit card - is by fitting it into slots in card edge to link with printed winding
Ewald Ing Grad Schmidt,Heinz Dipl Ing Pfizemaier +1 more
- 06 Jul 1979
TL;DR: In this paper, the authors simplify the mfr of a small transformer with a ferrite core by using a single-piece toroidal core, which can be made in a single piece.
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