System and method for creating high powered EMC compliant power supply for industrial and military applications

摘要

The present invention is an apparatus and method for provisioning a compact power filter connection to a well-grounded connector in such a way as to include a capacitive and inductive circuit connection, extremely near the connector and filter, such that EMC compatibility is created in a space roughly 30% of traditional mechanisms and design approach to satisfy the aforementioned needs, provide the previously stated objects, include the above-listed features, and achieve the already articulated advantages. The present invention is carried out in a “post-internal ferrite bead re-radiation noise-less” manner, in a sense that ability to have noise introduced back onto a post-ferrite bead line has been greatly reduced.

主权项

1. A 1U rack system for provisioning at least 300 watts of power, which is compliant with MIL-STD 461 and DO-160 comprising:
a rack configured for containing a plurality of 1U industrial electronic components; and a 1U industrial power supply disposed in said rack, said power supply comprising:
a shielded case;a power output connector grounded to said case said power output connector comprising a plurality of pins;a power provisioning line coupled to a power provisioning pin of said plurality of pins in said power output connector;power source circuitry, completely disposed with said case, which is configured to provide at least 300 watts of power at least 20V through said power provisioning line;a ferrite bead disposed at and about a terminal portion of said power provisioning line, where said ferrite bead is not a core of a toroidally wound inductor;a circuit board electrically and mechanically coupled to said power output connector and directly coupled to said power provisioning line;said circuit board containing a combination of resistive, capacitive and inductive components configured to provide electro-magnetic interference (EMI) filtering; andsaid ferrite bead and said circuit board configured to operate in combination to filter high frequency noise from said power provisioning line and to reduce EMI emissions from said shielded case.