The wide scope of services from characterization and test to application is addressed to both manufacturers and users of power electronic circuit components.

We do offer in detail:

Power Semiconductor Devices

Electrical Characterization

static characterization

• forward characteristic and parameters

• forward and reverse blocking characteristic and
  parameters
  

dynamic characterization

• switching losses and switching times

• di/dt and dv/dt parameters

• storage charge

• overcurrent and short circuit investigations

• avalanche tests (single, repetitive)

• latch-up tests

• hard, soft and resonant switching

• safe operating areas

to top

Thermal Characterization

static characterization

• R_thmeasurement (static heat transition)

• temperature measurements

dynamic characterization

• Z_th measurement (transient heat transition)

• measurement of temperature-time-function

to top

Making and verifying data sheets

• measurement of data sheet parameters using synthetic test circuits
  under standardized measurement conditions

• verifying parameter accuracy and tolerances of devices and
  comparison with data sheet specification

• data sheet editing

to top

Application-supporting services

• application advice

• power losses calculation based on device measurements

• design-in support for new components

• developing appnotes and user manuals

• development and production of demo-boards for presentation of new
  devices and components in typical application environments

• development and test of drive-units

• protection concepts (overcurrent, overvoltage, overtemperature)

• state-of-the-art device benchmarking

• customer support in finding second source components

• application and customer specific tests

• investigation of parameter drifts under defined device stress

• optimization of series and parallel connection of power devices

• concepts for synchronous rectifiers

• destruction tests

• developing device and circuit models for network simulation

• investigation of heat-conducting materials, cooling technologies and
  cooling assemblies: benchmarking

• Thermische Kopplung und Symmetrierung

• thermal design of devices and assemblies

• measurement of thermal parameters of devices and assemblies

• temperature and climate tests according to standards (DIN, IEC, …)

• thermal modeling, parametrization and simulation (network, FEM)

• methods for online-calculation of junction temperature of power
  devices in power converters

• layout optimization (electrical, thermal, EMI)

to top

Passive Components (Capacitors, Inductors, Transformers)

• calculation, design and optimization of inductors and transformers for
  converters and switch mode power supplies (SMPS) based on network
  simulation and magnetics-design-tools

• making magnetics samples

• investigation of electrical, thermal and EMI-behaviour of magnetics and
  capacitors in typical applications

• benchmarking

• cooling of passive components

to top

Using the available technical equipment, device measurements in a wide range from low-voltage (…12V…) to high-voltage (...3300V...) and low-current to high-current (some kiloamps) can be done.

• special power semiconductor device measurement setups for dynamic
  characterization

• curve tracers

• setups for special tests (e.g. repetitive avalanche)

• controlled heating systems

• R_th/Z_th-measurement equipment

• cooling unit and chiller for temperature and flow controlled closed cycle cooling
  systems

• high resolution digital scopes

• active and passive voltage probes, clip-on ammeters and Pearson-probes

• digital power analyzers

• arbitrary waveform generators

• high-voltage and high-current lab power supplies

• multi-channel temperature measurement equipment

• fast infrared thermo-cameras

• temperature and climate test systems according to standards

• network simulation tools

• magnetics design tools

• network and impedance analyser

• EMI measurement equipment

to top

Prof. Dr.-Ing. Tobias Reimann

Tel.:++49 3677 4613-46
Fax.:++49 3677 4613-90

t.reimann@isle-ilmenau.de