Louis Vlemincq is a transmission specialist at Belgacom, Evere, Belgium. He has a master's degree in electronics from the Institut de Radio-Cinematographie, Forest, Belgium. Email address: louis.vlemincq@belgacom.be
4 results found for Louis Vlemincq, displaying items 1 - 4
October 2, 2008[Ideas For Design] "Ultimate" Continuity Tester Hides Many Tricks Up Its Sleeve
I WAS REMINDED RECENTLY of a tester I designed years ago. At the time, I wanted to build “The Ultimate Continuity Tester,” and I established a wish list of all the features I required: • A “real continuity” tester. Too many multimeters and sounders react at resistances as high as hundreds or even thousands of ohms, which makes them practically useless in many cases. Within a board or a system, there are always medium-conductivity...
June 26, 2008[Ideas For Design] Trick A BJT-Based Converter Into Starting At Only 250 mV DC
The converter described below, based on a silicon bipolarjunction transistor (BJT), can operate at as low as 250 mV, which is probably a record for a converter not based on a JFET or germanium transistor. How is this possible? The VBE threshold is not clear-cut, depending on current density and other factors. But 250 mV is way below the lowest accepted values. There has to be a trick and there is, sort of. The big difficulty is in the starting....
April 28, 2003[Ideas For Design] "AC Vias" Can Improve Decoupling
Good decoupling is nearly always essential in a world of mixed-signal designs that exhibit increasing speed, performance, and component density. There are cases, though, where proper decoupling is absolutely critical if the circuit is to deliver its...
