Electrical Engineering

Smart solutions, alternative energies, miniaturization of electronic products – PROvendis offers attractive technologies from the field of electrical engineering for licensing, to purchase or for development cooperation.

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PICOihc

The invention pertains to an integrate-and-hold circuit which is used as a sampler. The typical structure of an integrate-and-hold circuit (IHC) is a multiplier serving as a switch followed by a resettable integrator with a hold capacitor.

Cleaning robot swarm

Particularly in the commercial sector (e.g. hotels, offices, retirement homes, hospitals) but also in private use, it is desirable if a floor cleaning by robots in the shortest possible time is completed (noise, accessibility).

DynLinkwitz

Loudspeaker enclosures for low frequency reproduction face the developer with a goal conflict. Either he achieves a small volume enclosure or he achieves a low cutoff frequency.

SUpDEq

Headphone-based binaural 3D audio gives us a realistic sound experience that can be enhanced even further by considering the head movements of the listener.

MPTSC

For a fast and precise control of mechatronic systems usually non-linear PID controllers are used. The more nonlinearities a system contains, the more complex the control task becomes.

CurrentShare

To reduce the input resistance of power modules, single semiconductor switches are usually connected in parallel.

Brake resistor

To decelerate an electric motor, the remaining kinetic and magnetic energy must be removed from the system. This is usually done with brake resistors that convert the energy to heat.

Opto-THC

Sample-and-hold circuits or track-and-hold (TH) circuits, along with analog-to-digital converters (ADCs), are the link from the analog to the digital world.

ITraRo

A method for the movement guidance of mobile robots by means of an intuitive trajectory control was recently developed at Bochum University for Applied Sciences.

CMOS biosensors

Production process for a highly sensitive biosensor made from a crossed nanowire-structure field-effect transistor. The cost effective CMOS compatible production process allows for e.g. biosignal monitoring of molecules like c-reactive protein (CRP), cardiac troponin (cTnI), electrogenic cells, or peptides such as amyloid-beta.

Modular charging station

This modular charging station for small, battery-operated devices like electric toothbrushes enables low-wear charging of batteries and reduces messy cabling.

Smart charging for electric vehicles

There is a growing trend for electric vehicles. Their drive batteries require charging at high power from the available AC power grid. Three-phase on-board chargers (OBCs) are used for this purpose at high power outputs of at least 11 KW.

Lock-In Amplifier

Lock-In amplifiers are firmly anchored in everyday research. They offer excellent noise suppression for repeating signals. The degree of suppression, however, depends critically on the low-pass filter at the end of the signal processing chain.

Synthetic Image Data

Almost all car manufacturers are currently developing camera-based autonomous or semi-autonomous vehicles.

Optically switched resonant-tunneling diode

Resonant-tunneling diodes are semiconductor components that, due to the quantum mechanical effect of the tunnel, have a current-voltage characteristic with a negative differential resistance.

DC-DC resonant converter

Flexible chargers for batteries (especially in the field of e-mobility), fuel cell applications or flexible photovoltaic battery combinations all contain switch-mode power supplies with DC converters, DC-DC converters in short.

Method for current measurement in half-bridge topologies

A number of different instrument transformers are used to determine voltage and current in regulated power electronics. Current measurement becomes more and more difficult with increasing current intensity, especially since the switching frequencies increase due to the use of modern (e.g. GaN) transistors and parasitic properties of the sensors must be minimized.

GridMaximizer

The electrical power grid is undergoing a major transformation. Increasing numbers of decentralized feeders have been added in recent years and, in the future, there will be a large number of charging stations for electric vehicles that temporarily draw a large amount of electrical power from the power grid.

Charge-Sensitive Amplifier

The charge-sensitive amplifier is an electronic circuit for amplifying the lowest voltages. It is suitable for the usual applications of an electrometer.

Future Display Technology

The presented technology is a two dimensional optical waveguide with very low attenuation.