EMC filters for suppressing interfering signals

An electromagnetic compatibility and interference suppression technology, which is applied in the direction of fixed signal inductance, inductor, crosstalk/noise/electromagnetic interference reduction (etc.), can solve time-consuming, costly and expensive problems

Active Publication Date: 2020-12-15
HANON SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] A disadvantage of such passive EMC filters is that they require a large installation space, for example on the main circuit board, for filtering large interference amplitudes or for observing correspondingly low limit values.
It is therefore very frequently necessary to: Time-consuming and cost-intensive adaptation of the layout of the converter circuit board to the proposed specifications
[0022] Due to the described disadvantages, there is a need for a suitable solution which limits the variety of required deformations of the inverter circuit board

Method used

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  • EMC filters for suppressing interfering signals
  • EMC filters for suppressing interfering signals
  • EMC filters for suppressing interfering signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] figure 1 An exemplary circuit arrangement of a passive EMC filter 1 according to the prior art is shown, which is connected to a converter 2 . The EMV filter circuit 1 configured as a passive filter has an input 3 to which a voltage of, for example, 400 V can be applied and includes choke coils L arranged in the supply lines HV+ and HV− 1 4 and L 2 5. The chokes in the case of common mode chokes are arranged on a common core with winding turns L 1 4 and L 2 5 composition.

[0047] with reference sign C 1 A first capacitor 6 is arranged between the conductors HV+ and HV- directly at the input of the passive EMV filter circuit 1 and at the choke L 1 4 and L 2 5, while having the reference designation C 2 The second capacitor 7 in the choke L 1 4 and L 2 5 is then arranged at the output of the EMV filter circuit 1 and thus at the input of the converter 2 .

[0048] with reference sign C 3 The third capacitor 8 is arranged between the conductor HV− and gr...

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PUM

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Abstract

The invention concerning the EMV filter (1) for suppressing interference signals is based on the object of proposing a solution whereby the overproduction of the converter circuit boards is reduced and also achieves a restricted installation space and reduced development and manufacturing cost. Said object is achieved in that in an EMV filter module (10) at least one core (11) of a choke coil (4, 5) with turns (16) is arranged on a first carrier circuit board (14) On, at least one of the capacitors (6, 7, 8, 9) is arranged on a first carrier circuit board (14), the first carrier circuit board (14) has at least two contact mechanisms (17), and the EMV filter A first carrier circuit board (14) of the converter module (10) is arranged by means of its contact means (17) on a main circuit board (12) of the converter (2) and is arranged in electrical connection with said main circuit board.

Description

technical field [0001] The invention relates to an EMV filter for suppressing interference signals, the EMV filter having at least one choke coil, at least one core and a plurality of capacitors. Background technique [0002] In electronic components that carry out switching processes with the aid of voltage or current, these switching processes lead to the generation of disturbances, which are caused by the electrical pulses that occur, with the transmission of interference signals. These disturbances can propagate not only via wired connections but also via free space, ie wirelessly, as electromagnetic waves. [0003] The ability of a technical device not to interfere with or be disturbed by other devices by undesired electrical or electromagnetic interactions is known as Electromagnetic Compatibility (EMV). [0004] In order to avoid or minimize the propagation of such interference, it is known from the prior art that these components be equipped with filter units, so-ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/44H02M1/14
CPCH02M1/14H02M1/44H01F17/062H01F27/40H01F2017/065H01F2027/065H02M7/003H03H2001/0035H05K1/0233H05K1/141H05K3/366H05K2201/042H05K2201/1006H03H1/0007H03H7/0138H03H11/32H01F27/24H01F27/28H03H1/00H03H7/0115H03H7/427H05K1/09H05K1/111H05K1/144H05K2201/10015H05K2201/1003H05K2201/10386H05K2201/10409
Inventor 斯特凡·韦尔克霍尔格·格贝里希托马斯·比特尼古劳斯·博施曼
Owner HANON SYST
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