A cascode configuration reduces reference modulation error in a 4-20 mA current mirror, improving active impedance by orders of magnitude.

Lego has been a much-loved toy brand for more than 90 years, with its signature building sets appealing to kids and adults alike. From the Star Wars enthusiast to the Twilight fanatic, there's a set ...

Lois Borny works on the product review section of The Independent, IndyBest, where she helps readers to save money and shop savvy, scouting out the very best deals and sharing her tried and tested ...