Portescap in Motion

Sunil Kedia

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Key Concepts For Running a Brushed DC Motor as a Generator

Posted by Sunil Kedia   Jan 20, 2022

Key Concepts For Running a Brushed DC Motor as a Generator

Although design engineers know that both brush DC and brushless DC (BLDC) motors can operate as generators, many tend to avoid running a brushed DC motor in generating mode because they believe this strategy is inefficient compared with motor use. Unfortunately, by avoiding using brushed DC motors as a generator, engineers pass up a number of benefits.

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Topics: BLDC Motors, Portescap, driving torque, miniature DC motors, Brushed DC motor as a generator, BLDC motor as a generator, back-EMF, power balance, motor selection, BLDC motor efficiency, DC coreless motors

Controlling Brushed DC Motors with Pulsed-width Modulation (PWM)

Posted by Sunil Kedia   Sep 23, 2021

Controlling Brushed DC Motors with Pulsed-width Modulation (PWM)

The enduring popularity of coreless brushed DC motors comes from a combination of their simplicity of design, fast transient responses, negligible iron losses and ease of control. With speed proportional to applied voltage, the motor can be simply driven using a continuous linear regulation power supply. But is this always the best solution?

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Topics: pulse width modulation, PMW, motor performance, Coreless brush DC motor

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