Category | July

Three Stability Assessment Methods Every Engineer Should Know About

Posted on 09 July 2014

      Many engineers are familiar with the Bode plot as an effective stability assessment method. However, some authors suggest and even teach that the Bode plot is the only method needed. This article shows why this thinking is short-sighted. A single, low cost instrument that can produce Bode plots, as well as two [...]

Sensor Module Ensures Optimum Battery Utilisation in Heavy-Duty Vehicles, called omniMoves

Posted on 08 July 2014

      Precise battery diagnostics makes maneuvering large, heavy-duty loads easier Isabellenhütte’s shunt-based IVT Modular sensor module measures the basic battery components’ current and voltage with an error rate of less than 0.1 per cent. This exceptional degree of accuracy provides for consistent power control and efficient utilisation, especially for high-capacity battery systems. This [...]

Efficient Microcontroller Peripheral Modeling with PLECS

Posted on 01 July 2014

      Microcontrollers play an integral part in controlling modern power electronic systems. Often, for system level simulations, the peripheral modules are simplified to improve overall simulation efficiency. In this study, efficient modeling of high fidelity peripheral models is discussed and the advantages of simulating power electronic systems with these models have been investigated [...]

Precise Evaluation of Input, Output, and Reverse Transfer Capacitances of Power Devices

Posted on 30 June 2014

      Increasing importance of capacitance measurement The switching frequency in power conversion circuits is increasing. This is primarily to reduce the size of passive components such as smoothing capacitors and reactors. Accurate characterization of device parameters affecting switching performance become more important as higher switching frequencies increase power circuit switching losses. By Hisao [...]

Freewheeling Diodes for High Performance Inverter Systems

Posted on 25 June 2014

      The engineers at Proton-Electrotex developed freewheeling diodes to operate at the reverse recovery process with high change rate of reverse recovery current (dIrrm/dt), and high power supply reverse voltage (VR) by means of proton irradiation technology, sintering technology and implementation of n’-buffer. The diodes are designed to be used as reverse diodes [...]