Bipolar

An AVR-Based Microstepping Bipolar Chopper Stepper Motor Driver (STMD)

Features Open Source – The schematic, parts list, and software are all freely downloadable! Hobbyist-friendly – No surface mount parts means allows this drive to be easily repaired! DMOS driver chips rated at 55V and 3 Amps. Easy parts availability – Electronic parts are all available at Digikey. Just add your own heat sink and […]

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Use a transistor and an ammeter to measure inductance

Raju Baddi writes: Bipolar junction transistors transfer a current from a lower-resistance emitter to a higher-resistance collector. You can use this property to measure inductance by connecting a series inductance/resistance circuit in the emitter and biasing on the transistor long enough for the current to reach a maximum value that is at least five LR time constants

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Plessey Semiconductors Announces Bipolar Process Technology Now Available

(PRWEB) July 16, 2010 Plessey Semiconductors Limited today announced that they had successfully transferred their first bipolar process, the W-series process, onto their 8-inch line in Plymouth, England. The W-series bipolar process is a critical process for a number of new product releases as well as part of the ongoing support Plessey is providing to

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