Category | Measurement

Methods of Current Measurement in Mid-Frequency Power Circuits

Posted on 14 March 2019

      Fast-changing power current precise measurements are very important in modern measuring equipment for power semiconductor devices. It is quite important for converter equipment as well, since improved control algorithms are used there, which require knowledge of instantaneous current value in a certain period of time. By Alexey Poleshchuk, R&D Center, Proton-Electrotex JSC [...]

Power meets Precision

Posted on 13 March 2019

      The PX8000 Precision Power Scope is a mixture of power-analyzer and oscilloscope DLM4000, WT3000, DL850E – Yokogawa’s last year’s developments focused on power measurement in a special way. The new Power Scope PX8000 is supposed to fill a gap in this power measurement solution as it combines power-analyzer and oscilloscope functions. By [...]

IGBT Modules Benefit from Inverted Acoustic Inspection

Posted on 29 November 2019

      When a high-current IGBT module experiences sudden electrical failure in service, the consequences are generally expensive and sometimes dangerous. Because they are used as high-speed switches for heavy power and current, IGBT modules play demanding roles in transportation (electric railways, electric autos), mining and other industries. By Tom Adams, consultant, Sonoscan, Inc. [...]

The Revolutionary New Impedance Analyzer

Posted on 26 November 2019

      Originally conceived as a time domain analysis device the HIL is now entering the frequency domain which will revolutionize the way power electronics controllers are developed, tuned and tested. By Elaina Chai Massachusetts Institute of Technology and Adrien Genic Typhoon HIL Inc. Introduction As the applications and complexity of power electronics systems [...]

Oscilloscope Reinvented

Posted on 06 November 2019

      The convergence of power stage modeling and signal processing within the HIL gives its oscilloscope function a high-bandwidth probeless access to all signals within the test setup. This convergence opens up unheard-of possibilities for automatic testing and reporting. By Subhashish Bhattacharya NC State University, Toni Gualtieri, Predrag Nikolic and Dusan Majstorovic Typhoon [...]

Expanding the Dynamic Range of Current Measurement

Posted on 05 November 2019

      ASIC-based current transducers can expand the dynamic range and increase the sensitivity and reliability of current measurement. In power electronics, the accuracy with which electrical current is measured is not solely based on the selection of a suitable transducer. By Erik Lange, Marketing & Applications Engineer, LEM USA, Inc. Level-shifting and intermediate [...]

Precise Characterization of Power Semiconductor Devices Made Affordable

Posted on 02 September 2019

      Power semiconductor devices are core components of power electronic systems. Knowing their characteristics well helps reducing costs and increasing reliability. When designing a system, it is important to consider the spread of parameters of the various components. But when it comes to the verification of the design, how can we know about [...]

Hardware-in-the-Loop Laboratory for Hands-on Learning of Power Electronics Controls

Posted on 02 July 2019

      From development and engineering departments in leading power electronics companies to major research and teaching institutions ultra-high fidelity Hardware-in-the-Loop technology is revolutionizing the way power electronics control is designed, optimized and tested. By Prof. Kaushik Rajashekara and Prof. Bilal Akin, UT Dallas; Chris Clearman, Texas Instruments Inc., and Marko Vekic, Typhoon HIL [...]

TO and D-PAK Components Evaluated Acoustically

Posted on 02 July 2019

      Plastic-encapsulated component packages with the TO and D-PAK designations are often used as transistors that regulate voltage in power modules. TOs are used in through-hole mounting, while D-PAKs are used in surface mounting. Often the packages have 3 external leads, although some types have as many as 15. By Tom Adams, consultant, [...]

State of the Art PE Control Solutions Development

Posted on 30 April 2019

      The development and validation of control algorithms in record time Since 1991 Končar Electrical Engineering Institute (KEEI) Inc. has been involved in development and delivery of embedded power electronics controls solutions to companies within KONČAR Group and for the open market. By Zlatka Tecec Ribaric, Sinisa Marijan, KONČAR Electrical Engineering Institute Inc. [...]