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Pololu High-Power Motor Driver 24v20
This discrete MOSFET H-bridge motor driver enables bidirectional control of one high-power DC brushed motor. The little 1.8×0.8-inch board supports a wide 5.5 to 40 V voltage range and is efficient enough to deliver a continuous 20 A without a heat sink.
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IRF7842 datasheet (167k pdf)
Datasheet for IRF7842PBF MOSFET.
Active Magnetic Bearing: Tripod Floater v2.0
Meindert Norg from Norg Consulting (www.NorgConsulting.com) demonstrates his active magnetic bearing, Tripod Floater. The closed-loop system uses three Pololu 18v15 high-power motor drivers as PWM amplifiers to power the magnetic coils that keep the module floating beneath the metal plate. By Meindert Norg, August, 2009. February, 2010 update: the Tripod Floater is now wireless! Version 2.2 video