US 12,068,709 B2
Electrical circuit arrangement and drive arrangement for driving a motor vehicle
Sebastian Ackermann, Offenburg (DE); Patrick Augustin, Bühl (DE); Vincent Leonhardt, Haguenau (FR); Denis Muller, Batzendorf (FR); and Eduard Enderle, Gengenbach (DE)
Assigned to Schaeffler Technologies AG & CO. KG, Herzogenaurach (DE)
Appl. No. 17/927,568
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Apr. 14, 2021, PCT No. PCT/DE2021/100342
§ 371(c)(1), (2) Date Mar. 20, 2023,
PCT Pub. No. WO2021/239173, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 10 2020 114 283.8 (DE), filed on May 28, 2020.
Prior Publication US 2024/0072714 A1, Feb. 29, 2024
Int. Cl. H02P 29/024 (2016.01); B60L 15/00 (2006.01); H02P 27/06 (2006.01)
CPC H02P 29/024 (2013.01) [B60L 15/007 (2013.01); H02P 27/06 (2013.01); B60L 2210/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrical circuit arrangement comprising an inverter, a driver circuit and a protective circuit, wherein the inverter includes a plurality of inverter switching elements each having a drive connection, wherein the drive connection of at least one inverter switching element is connected to the driver circuit via a first switching element of the protective circuit, wherein a drive connection of the first switching element is connected to a circuit node, which is connected to a first potential via a resistor and to a second potential via a second switching element, wherein the protective circuit includes a comparison device having an input which connected to an operating voltage and a reference voltage and an output connected to a drive connection of the second switching element, so that if the operating voltage deviates from the reference voltage, the second switching element is switched and the first switching element is switched due to one of the first potential or the second potential being applied to the circuit node as a result of the switching of the second switching element.