LC FILTER ARRANGEMENT AND ELECTRICAL OR ELECTRONIC DEVICE WITH SUCH AN LC-FILTER ARRANGEMENT

摘要

An LC filter arrangement (1) for mounting on a printed circuit board (16) with printed conductors (15) comprises: - an input with a first and second input terminal (2a, 2b), - an output with a first and second output terminal (3a, 3b ), - a filter capacitor (8) between the first and second output terminals (3a), - a magnetic core (5), and - a choke (4) having first and second choke terminals (4a, 4b) and a plurality of the magnetic cores ( 5) enclosing turns (6.1-6.n) .Each of the turns (6.1-6.n) is electrically connected to a by means of a separate, the magnetic core (5) at least partially surrounding, in each case in a mounted with the circuit board (16) state Conductor track (15) of the printed circuit board (16) connected conductor segment (7.1-7.n), each having a first and second end (7.1.a-7.na, 7.1.b-7.nb) formed. Each of the conductor segments (7.1-7.n) is arranged in a holder (20) which positions the conductor segments (7.1-7.n) and is electrically insulated from the magnetic core (5). In this case, the second end (7.1.b - 7.n-1.b) of a conductor segment (7.1-7.n-1) with the first end (7.2.a-7.na) of an adjacent conductor segment (7.2-7. n), the first throttle connection (4a) and the second throttle connection (4b) being formed by outer conductor segment ends (7.1.a, 7.nb). The first throttle port (4a) is electrically connected to the first input port (2a) and the second throttle port (4b) is electrically connected to the first output port (3a). The electrical connections of the conductor segments (7.1-7.n) have at least one tap (9.1-9.n-1) with each other, to which at least one additional impedance (10.1-10.n-1) is connected.