EP 4244966 A1 20230920 - DEVICE FOR THE LOW-COMMON-MODE CONVERSION OF ALTERNATING VOLTAGE
Title (en)
DEVICE FOR THE LOW-COMMON-MODE CONVERSION OF ALTERNATING VOLTAGE
Title (de)
VORRICHTUNG ZUR GLEICHTAKTARMEN UMRICHTUNG VON WECHSELSPANNUNG
Title (fr)
DISPOSITIF DE CONVERSION DE MODE COMMUN FAIBLE DE TENSION ALTERNATIVE
Publication
Application
Priority
- DE 102020214265 A 20201112
- EP 2021081496 W 20211112
Abstract (en)
[origin: WO2022101396A1] The invention relates to a device for the low-common-mode conversion of alternating voltage, comprising: • a voltage feed (E1... E4), the voltage feed being provided, during operation, by means of a single-phase, two-conductor alternating voltage network, a single-phase, three-conductor alternating voltage network or a three-phase, multi-conductor alternating voltage network; • three first switching branches, each first switching branch having a bidirectional switch (SA, SB, SC) which can be cycled at low frequency; • wherein the outputs of the first switching branches can each be switchably led to a first conductor (m); • wherein during operation each of the inputs of the voltage feed (E1... E4) is led to a second conductor (p) by means of a first rectifier apparatus (D1a, D2a, D3a) in a positive half-wave; • wherein during operation each of the inputs of the voltage feed (E1... E4) is led to a third conductor (n) by means of a second rectifier apparatus (D1b, D2b, D3b) in a negative half-wave; • wherein the device also has at least two second switching branches, each second switching branch having a switch (S1, S2) which can be cycled at high frequency; • wherein a first of the second switching branches (S1) is located between the first conductor (m) and the second conductor (p), and a second of the second switching branches (S2) is located between the first conductor (m) and the third conductor (n); • wherein exactly one first effective step-up reactor (Lp) is located in the feed of the second conductor (p) to the first of the second switching branches (S1); • wherein exactly one second effective step-up reactor (Ln) is located in the feed of the third conductor (n) to the second of the second switching branches (S2).
IPC 8 full level
H02M 1/10 (2006.01); H02M 1/12 (2006.01); H02M 1/42 (2007.01)
CPC (source: EP)
H02M 1/10 (2013.01); H02M 1/123 (2021.05); H02M 1/126 (2013.01); H02M 1/4216 (2013.01); H02M 1/4225 (2013.01); Y02B 70/10 (2013.01)
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)
WO 2022101396 A1 20220519; DE 102020214265 A1 20220512; EP 4244966 A1 20230920
DOCDB simple family (application)
EP 2021081496 W 20211112; DE 102020214265 A 20201112; EP 21814724 A 20211112