Back to results
US 11,451,045 B2Granted
Automotive auxiliary unit with an electronic protection unit
AssigneePierburg Pump Technology GmbH
InventorsWitold Joschko, Stephan Riefers
Life of this patent
Estimating the term…
Abstract
An automotive auxiliary unit includes an electronic protection unit. The electronic protection unit includes an inverse-polarity protection unit having a semiconductor switch, and an overcurrent protection unit which detects a voltage drop at the semiconductor switch of the inverse-polarity protection unit so as to determine a present current level.
Claims2
An automotive auxiliary unit comprising an electronic protection unit, the electronic protection unit comprising:
- an inverse-polarity protection unit comprising a semiconductor switch which comprises an input and an output;
- an overcurrent protection unit which is configured to detect a voltage drop at the semiconductor switch of the inverse-polarity protection unit so as to determine a present current level and to provide an overcurrent signal if the present current level is higher than a specified maximum current level, the overcurrent protection unit being directly electrically connected with the input of the semiconductor switch and directly electrically connected with the output of the semiconductor switch;
- and
- a protection control unit which is configured to switch the semiconductor switch of the inverse-polarity protection unit off if the overcurrent protection unit provides the overcurrent signal.
1 more element
Dependencies are inferred from the claim text.