The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 19, 2021
Filed:
Feb. 09, 2018
Pilz Gmbh & Co. KG, stfildern, DE;
Jürgen Pullmann, Ostfildern, DE;
Bernd Neuschwander, Ostfildern, DE;
Frieder Scharpf, Ostfildern, DE;
Pilz GmbH & Co. KG, Ostfildern, DE;
Abstract
A circuit arrangement comprises: an electronic switch; at least one relay including a relay coil; a shunt resistor; a voltage supply device to supply an operating voltage to the at least one relay, wherein the electronic switch, the relay coil of the at least one relay, and the shunt resistor are electrically connected in series to one another between the operating voltage and ground; a current regulator to drive the electronic switch with a pulse width modulation to adjust a control current that flows through the relay coil; at least one sensor to generate sensor data indicative of shocks, impacts or vibrations acting on the at least one relay; and an evaluating unit to evaluate the sensor data, wherein the current regulator is configured to adjust the control current based on the sensor data evaluated by the evaluating unit.