Search International and National Patent Collections

1. (WO2018020015) CIRCUIT FOR PRE-CHARGING AN INTERMEDIATE CIRCUIT, AND ELECTRIC SYSTEM

Pub. No.:    WO/2018/020015    International Application No.:    PCT/EP2017/069202
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Sat Jul 29 01:59:59 CEST 2017
IPC: H02M 1/36
H02M 7/12
Applicants: SCHMIDHAUSER AG
Inventors: ITTEN, Alex
DOCS, Zoltan
Title: CIRCUIT FOR PRE-CHARGING AN INTERMEDIATE CIRCUIT, AND ELECTRIC SYSTEM
Abstract:
The invention relates to a circuit (1) for pre-charging an intermediate circuit (50). The intermediate circuit (50) has a positive branch (2) and a negative branch (3), and the circuit (1) for pre-charging an intermediate circuit (50) has the following: - a first controllable energy source (4), - a second controllable energy source (5), said first control energy source (4) and second controllable energy source (5) being looped in series between the positive branch (2) and the negative branch (3) on the output side, - a suppression unit (26), said suppression unit (26) being looped between a connection node (N1) of the output of the first controllable energy source (4) and the output of the second controllable energy source (5) and a reference potential, and - a controller (30), wherein - the controller is connected to the first energy source (4) and the second energy source (5) for signaling purposes and - is designed to actuate the first energy source (4) and the second energy source (5) in order to generate an output signal pattern (Va, Vb) in order to pre-charge the intermediate circuit (50).