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Optimize DC Motor Drivers with Current Regulation (.PDF Download)

June 30, 2021

Read this article online.

Oftentimes, the motor driver and power supply are burdened by large currents upon starting a dc motor. Using examples from Monolithic Power Systems (MPS), this article looks into the current-regulation function integrated into myriad motor-driver ICs to address high-current conditions. In many cases, using current regulation can allow designers to use a smaller motor-driver IC.

For simplification, a brushed dc motor is used in all examples, but the processes described here also can be applied to brushless dc (BLDC) motor systems.