Arrangement for protection of electronic components
AssigneeSiemens Aktiengesellschaft
InventorsWerner Hartmann, Michael Römheld
Life of this patent
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Abstract
In devices for producing strong current high power impulses, the electronic components, which include passive components including capacitors and/or switch elements, including semi-conductor switches, diodes or similar elements, need to be protected against overcurrents in the event of an error function. Generally, serial resistance and serial inductance are used. The serial resistance and the serial inductance are combined together in such a manner that a coil having necessary resistance and inductance values is produced.
Claims6
An arrangement for protection of electronic components in appliances producing high-current, high-power pulses and having passive components, comprising:
- a component having a series resistance with a preset resistance value and a preset series inductance value, formed as a coil from a non-magnetic, alloyed stainless steel having an electrical resistivity with a high temperature coefficient, whereby the series resistance is dependent on temperature and upon occurrence of a short circuit the series resistance has a heated resistance value larger than the preset resistance value, and having a thermal capacity that allows a preset amount of energy to be consumed by said component without electrical resistivity of the material in the coil causing the series resistance to exceed the preset resistance value by a predetermined amount.
Dependencies are inferred from the claim text.