Source - Electronic and Electrical Components http://source.theengineer.co.uk http://source.theengineer.co.uk http://source.theengineer.co.uk/magazine/graphics/logo.png http://source.theengineer.co.uk Case study: hardware-in-the-loop test systems for the BMW Hydrogen 7 http://source.theengineer.co.uk/software-and-communications/data-acquisition-and-analysis/data-acquisition-software/case-study-hardware-in-the-loop-test-systems-for-the-bmw-hydrogen-7/2013950.article http://source.theengineer.co.uk/software-and-communications/data-acquisition-and-analysis/data-acquisition-software/case-study-hardware-in-the-loop-test-systems-for-the-bmw-hydrogen-7/2013950.article Instruments and hardware from National Instruments have been used in the development of a complete HIL testing environment for engines used in the BMW Hydrogen 7. Tue, 21 May 2013 11:40 GMT Application note: parasitic capacitance effects in step-up transformer design http://source.theengineer.co.uk/electronic-and-electrical-components/active-components/analogue-and-mixed-signal-ics/application-note-parasitic-capacitance-effects-in-step-up-transformer-design/2013952.article http://source.theengineer.co.uk/electronic-and-electrical-components/active-components/analogue-and-mixed-signal-ics/application-note-parasitic-capacitance-effects-in-step-up-transformer-design/2013952.article Transformers have parasitic components that can cause them to deviate from their ideal characteristics, and the parasitic capacitance associated with the secondary can cause large resonating current spikes on the leading edge of the switch current waveform. These spikes can cause the regulator to exhibit erratic operating conditions that manifests itself as duty-cycle instability. Attention to transformer design will cure this problem. Tue, 21 May 2013 11:01 GMT Data sheet: LTC3639 synchronous buck converter from Linear Technology http://source.theengineer.co.uk/electronic-and-electrical-components/active-components/power-supply-ics-and-controllers/data-sheet-ltc3639-synchronous-buck-converter-from-linear-technology/2013866.article http://source.theengineer.co.uk/electronic-and-electrical-components/active-components/power-supply-ics-and-controllers/data-sheet-ltc3639-synchronous-buck-converter-from-linear-technology/2013866.article The LTC3639 from Linear Technology is a 150V input-capable synchronous buck converter that delivers up to 100mA of continuous output current. Thu, 16 May 2013 16:26 GMT