EP 4285478 A1 20231206 - ELECTRONICS UNIT FOR AN ELECTRICAL DEVICE
Title (en)
ELECTRONICS UNIT FOR AN ELECTRICAL DEVICE
Title (de)
ELEKTRONIKEINHEIT FÜR EIN ELEKTROGERÄT
Title (fr)
UNITÉ ÉLECTRONIQUE POUR UN APPAREIL ÉLECTRIQUE
Publication
Application
Priority
- DE 102021200781 A 20210128
- EP 2021087800 W 20211229
Abstract (en)
[origin: WO2022161732A1] The invention relates to an electronics unit (10) for an electrical device, in particular for a motor-operated electrical device, comprising a printed circuit board (40), which is populated in particular on one side and comprises a plurality of power transistors (16) for actuating a multiphase load (12), in particular a multiphase electric motor (14), of the electrical device, wherein each phase (U, V, W) of the load (12) is assigned at least one power transistor (16). It is proposed that a first electrical damping element (30, 32) for damping transients caused by the switching processes of the power transistors (16) is connected in parallel with at least one of the power transistors (16) of a first phase (W) with the highest leakage inductance and that no electrical damping element (30, 32) acting in this manner is provided for at least one of the other phases (U, V), in particular for the phase (U) with the lowest leakage inductance. In addition, the invention relates to an electrical device, in particular a motor-operated electrical device, comprising an electronics unit (10) according to the invention for actuating a multiphase load (12), in particular a multiphase electric motor (14).
IPC 8 full level
H02M 1/34 (2007.01); H02M 7/00 (2006.01); H02M 7/48 (2007.01)
CPC (source: EP US)
H02M 1/009 (2021.05 - US); H02M 1/34 (2013.01 - EP); H02M 1/348 (2021.05 - EP US); H02M 7/003 (2013.01 - EP); H02M 7/48 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021200781 A1 20220728; CN 116888876 A 20231013; EP 4285478 A1 20231206; US 2024088783 A1 20240314; WO 2022161732 A1 20220804
DOCDB simple family (application)
DE 102021200781 A 20210128; CN 202180094698 A 20211229; EP 2021087800 W 20211229; EP 21847720 A 20211229; US 202118263069 A 20211229