IR2101PWM

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By: Eric R, created: 2013-04-10 | updated: 2013-04-10

Motor driver using two IR2101 driver chips from International Rectifier. These chips drive an H bridge made with MOSFETS or IGBTs. For driving DC permanent magnet motor or other inductive DC load. After driver is started writing a "duty cycle" value of -4000 to 4000 to a long variable creates nearly full negative and nearly full positive voltage output. Duty cycle may be commanded by a Spin or an Assembly program.