Inventor

SCHIERLING HUBERT

DE49 patents

⚠️ This page may combine multiple inventors who share the name “SCHIERLING HUBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SCHIERLING HUBERT

SIEMENS AG

Inverter with a line-side and load-side freewheeling pulse converter using SiC switching elements

Method for controlling a matrix converter

Electronic power circuit

Method and apparatus for standstill recognition when restarting a power converter-fed AC motor without a tachometer generator

Method for controlling freewheeling paths in a matrix converter

Method and device for detecting a degree of pollution of an operational converter

Drive controller for a self-commutated converter

Frequency converter having an intermediate circuit without any capacitors

Method and apparatus for determining the rotor resistance of a rotating-field machine

Method for determination of the risk to disturbance-free operation of a frequency converter

Method and device for shutting down a drive with a matrix converter during a power outage

Pulse circuit for providing a fault current in a DC voltage power supply grid

Electronic switch

Electronic switch with overvoltage limiter

Method and device for bridging brief power outages in a matrix converter

Method and apparatus for current regulating in a voltage-injecting converter

Method for controlling a direct current switch, direct current switch, and DC voltage system

Method for controlling a Vienna rectifier

Frequency converter with DC link capacitor and method for pre-charging the DC link capacitor

Transmission system for interchanging information data between an electrical load and an upstream converter

Process for determining the loading condition of a diode rectifier of a frequency converter

Reduction of interference currents in a group of synchronized, variable speed electric drives

Locating a ground fault in a DC system

Method for preventing a dangerous, higher-frequency earth fault current for an electrical drive system

Method for precharging a network section

Machine tool or production machine or robot

Frequency converter with simplified pre-charging circuit

Apparatus and method for switching a direct current

Electronic module comprising a pulsating heat pipe

Method and apparatus for determining an electrical torque of an electrical machine

Detection of a ground fault in a direct-current network

Method and device for automatically testing a switching member

Locating a ground fault in a DC network

Method for operating a direct-current grid and direct-current grid

Method for operating a power distributing apparatus, and power distributing apparatus

Arrangement comprising two elements which can be rotatably displaced in respect of one another

Clamping circuit in a rectifier with more than two potentials provided on the output side

Switching device for a DC voltage circuit

Circuit breaker device for DC voltage

Energy recovery rectifier device

Efficient pre-charging of sections of a DC voltage network

Converter and method for operating same

Method for operating a drive control device, facility with means for executing the method and drive control device with such a facility

Method and apparatus for correction of a detected faulty actual valve of a signal affected by harmonic vibrations

DILLIG REINHOLD

Method for operating a ground fault interrupter as well as ground fault interrupter for a frequency converter

Frequency converter and method for identifying and blocking a fault current in a frequency converter

SCHIERLING HUBERT

Lossy triphase low-pass filter

Machine with optical communication from a first machine part to a second machine part which rotates relative to the first machine part

BIRNER MARTIN

Electronic circuit composed of sub-circuits and method for producing