Abstract:
The invention relates to a transmission-line network of the foam stripline type. To reduce dielectric losses in the foam (6, 7), at least a part of the foam in the region of the stripline (1) is removed such that the wave properties of the transmission-line network are not impaired. Moreover the ducts (9, 10) that are formed may be used for the forced cooling of the stripline (1) using air or another cooling agent.
Abstract:
Eine Leiterplattenanordnung mit mindestens zwei Leiterplatten, die mit elektrischen Leiterbahnen versehen und mit Wärme erzeugenden Bauelementen bestückt sind, umfaßt als integrierten Bestandteil der Leiterplattenanordnung eine Kühlplatte (18) die mit Kühlkanälen (24) versehen ist. Die Kühlplatte umfaßt eine auf einer Trägerschicht (26) angeordnete wärmeleitende Kühlschicht (22), wobei die Kühlkanäle als einseitig offene Kanäle in der Kühlschicht verlaufen und durch eine zur Kühlplatte gehörende Isolierplatte (20) abgedeckt sind.
Abstract:
Es wird eine mehrschichtige Verbindungs- und Schaltungsanordnung mit integrierten Halbleiter- und Hybridbauelementen vorgeschlagen. Auf einem mindestens auf einer Seite mit einer Leiterplatte (21,23) versehenen Trägerelement (30,30ʹ) sind in mehreren, matrixartig in der Leiterplatte (21,23) angeordneten Ausnehmungen (22,24) Modul-Baueinheiten (10, 10ʹ;110,110ʹ) angeordnet und lösbar auf dem Trägerelement befestigt. Die einzelne, elektrisch mit der Leiterplatte (21,23) des Trägerelements (30,30ʹ) wirkverbundene Modul-Baueinheit (10,10ʹ;110,110ʹ) umfasst eine mehrlagige Leiterplatte (17), auf welcher mehrere passive und/oder aktive elektrische Komponenten (11 bis 15) angeordnet und elektrisch mit der auf einer Bodenplatte (16) auflamierten Leiterplatte (17) wirkverbunden sind.
Abstract:
Disclosed is a PCB used in multifunctional LED applications, having an electronic side with circuit components and a LED side with lighting components; which has at least one metal surface coated on the ground of the mentioned electronic side, at least one metal surface coated on the ground of the mentioned LED surface, or at least one pipe located in the inner cross-section of the mentioned PCB in order to reduce the heating generated on the mentioned PCB by dissipating it over the surface of board.
Abstract:
A thermal management system for an electrical component includes a printed circuit board (PCB) capable of receiving the electrical component on a first side of the PCB. An elongate member has one end attached to a second side of the PCB, and another end disposed away from the PCB. The elongate member also has an open interior that facilitates fluid communication between the two ends. One of the ends defines an at least partially closed boundary on the PCB. The PCB includes an aperture disposed therethrough proximate the boundary such that fluid communication is facilitated between the first side of the PCB and the second side of the PCB, and along at least a portion of the elongate member.
Abstract:
A fluid-cooled balun transformer that includes a substrate plate with a first and an opposite second face, a first and a second conductive element arranged on the first and the second face, respectively, wherein a first and a second signal port electrically is connected to the first and the second conductive element, respectively, and a cooling module, where the second conductive element is transformingly coupled to the first conductive element and electrically isolated therefrom, the cooling module includes a first tubular member, the first tubular member has a fluid inlet to receive a coolant fluid into the first tubular member, a flow channel to conduct a flow of coolant fluid within the first tubular member and a fluid outlet to release the coolant fluid from the first tubular member, and where the flow channel of the first tubular member is arranged in thermal contact with the first conductive element.
Abstract:
The present disclosure relates to a power semiconductor module comprising a printed circuit board (PCB), and to method of cooling such a power semiconductor module. The module comprises a power semiconductor device and an island of thermally conducting foam embedded into the printed circuit board. The power semiconductor device and the island of thermally conducting foam are positioned on top of each other, and the island is arranged to form a path for a flowing coolant cooling the power semiconductor device.