Abstract:
A semiconductor power device package (300) having a lead frame-based integrated inductor (350) is disclosed. The semiconductor power device package (300) includes a lead frame (100) having a plurality of leads, an inductor core (200) attached to the lead frame (100) such that a plurality of lead ends are exposed through a window (210) formed in the inductor core (200), a plurality of bonding wires (320), ones of the plurality of bonding wires (320) coupling each of the plurality of lead ends to adjacent leads about the inductor core (200) to form the inductor (350), and a power integrated circuit (330) coupled to the inductor (350). In alternative embodiments, a top lead frame (1400) couples each of the plurality of lead ends to adjacent leads about the inductor core (200) by means of a connection chip (500).
Abstract:
The packaged device of the invention combines common mode filtering and ESD protection and is tuned to give optimum common mode protection at RF frequencies in use for mobile telephony, particularly, the lower frequency band of GSM.
Abstract:
A transformer comprises circuit board having a first and a second surface. A plurality of electrically conductive paths are provided on the first and second surfaces of the circuit board, wherein some of the electrically conductive paths (20a-20f) are interconnected so as to form a primary winding of the transformer, and some of the electrically conductive paths (30a-30r) are interconnected so as to form a secondary winding of the transformer. By providing the electrically conductive paths so that they form an essentially circular pattern, the space of the PCB surfaces is utilized in an efficient way. Also, the transformer can be designed to provide impedance matching. A method of manufacturing a transformer is also disclosed.
Abstract:
Disclosed is an apparatus and method for a magnetic component. The magnetic component includes a substrate having a feature and a first conductive pattern disposed on the feature. The magnetic component also includes a permeability material disposed within the feature. A substrate material is disposed on the substrate to facilitate substantial enclosure of the permeability material between the substrate and the substrate material, where the substrate material has a second conductive pattern. The first conductive pattern and the second conductive pattern cooperate to be capable of facilitating magnetic properties of the permeability material.
Abstract:
Die vorliegende Erfindung bezieht sich allgemein auf das Gebiet der Interfacetechnik. Aus der Interfacetechnik sind elektronische Bauelemente, beispielsweise modulare Konverter für die Mess- Steuer- und Regelungstechnik, insbesondere Trennverstärker bekannt. Solche Trennverstärker können zur galvanischen Trennung, Umsetzung, Verstärkung und Filterung von Standard-, Normsignalen und Anpassung analoger Signale benutzt werden. Diese Trennverstärker sind im Eingangs-, Ausgangs- und Versorgungskreis galvanisch voneinander getrennt. Zur Trennung wird erfindungsgemäß ein separates Bauteil eines Übertragers in eine Leiterplatte eines Trennverstärkers, mit Hilfe der SMD- Montagetechnik, integriert, wobei der Übertrager eine Kombination aus induktiven Bauelementen, bestehend aus einem Magnetkern und Wicklung und einem Substrat welches innen liegende Leiterbahnen, die planare Kurzschlusswicklungen bilden, enthält.
Abstract:
A toroidal inductor, including a substrate (100) , a toroidal core region (434) defined within the substrate, and a toroidal coil including a first plurality of turns formed about the toroidal core region and a second plurality of turns formed about the toroidal core region. The second plurality of turns can define a cross sectional area (440) greater than a cross sectional area (442) defined by the first plurality of turns. The substrate and the toroidal coil can be formed in a co-firing process to form an integral substrate structure with the toroidal coil at least partially embedded therein. The first and second plurality of turns can be disposed in alternating succession. The toroidal core region can be formed of a substrate material having a permeability greater than at least one other portion of the substrate.
Abstract:
An apparatus for connecting primary conductive lines of a flexible transformer which assures the simple and reliable connection between the primary conductive lines. The apparatus includes a circular rigid supporting plate having an opening at the center thereof, a connecting member having an opening at the center thereof fabricated of a flexible insulator sheet having one surface where the supporting plate is adhered and the other surface where a plurality of radial conductive lines are deposited. The connecting member has a plurality of projecting portions at inner and outer peripheral edge portions thereof by cutting out the inner and outer peripheral edge portions where the radial conductive lines are not deposited. The projecting portions are folded to connect inner and outer parallel primary conductive lines.
Abstract:
A transformer or coupled inductor with any arbitrary turns ratio (for example non-integral), and optionally with multiple secondary windings (S1, S2), has primary and secondary windings interleaved (P, S1, S2; P, S1, S2) on the same winding layer, preferably around a magnetically permeable or an air core. This is capable of giving optimum magnetic coupling, minimum leakage fields and negligible proximity effect losses. The electrical turns ratio is determined by series or parallel, or combination series-parallel, connections of the physical turns of each winding.