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4 Reasons why you should use a PWM Controller!

Brushed DC motors are some of the most commonly used electric motors, found in a wide range of applications from electronic cooling fans to electronic fuel pumps. These motors are simple and reliable, but their speed and torque can be difficult to control with traditional on/off switches. That’s where the CWI Performance Pulse Width Modulation (PWM Controller) comes in. By using a PWM controller with a brushed motor, you can achieve finer control over the motor’s speed and torque, resulting in a more efficient and effective system.

The PWM controller works by rapidly switching the voltage to the motor on and off at a fixed frequency. The duty cycle of the signal determines the amount of time the voltage is on versus off, which in turn controls the average voltage supplied to the motor. In contrast, a standard on/off switch simply connects and disconnects the motor from the power supply, resulting in a fixed voltage and limited control over the motor’s speed.

So, what are the benefits of using a PWM controller with a brushed motor? Let’s take a closer look.

One of the main advantages of using a PWM controller with a brushed motor is the ability to achieve greater control over the motor’s speed and torque. By adjusting the duty cycle of the PWM signal, you can precisely control the amount of power delivered to the motor. This can be especially useful in applications where precise speed control is necessary, such as preemptive cooling with fans, maintaining constant fuel pressure with multiple fuel pumps, and a skew of other applications.

Another benefit of using a PWM controller with a brushed motor is energy efficiency. Because the PWM signal controls the average voltage delivered to the motor, you can reduce the voltage when less power is needed, resulting in less energy consumption. This can lead to significant energy savings over time in OEM applications, especially in applications where the motor runs for extended periods of time.

Using a PWM controller with a brushed motor can also help reduce wear and tear on the motor. When a motor is started with a standard on/off switch, it experiences a sudden surge of power that can cause excessive wear and tear on the motor’s components. By using our PWM controller the voltage is gradually ramped up, reducing stress on the motor and extending its lifespan.

Finally, using a PWM controller with a brushed motor can help reduce heat generation. Because the voltage is switched on and off rapidly, the motor spends less time operating at full power, which can reduce heat generation and help keep the motor cool. This can be especially important in applications where the motor is located in a confined space or where heat buildup can be a safety hazard.

In conclusion, using our PWM Controller with a brushed motor can provide a range of benefits, including greater control over speed and torque, improved energy efficiency, reduced wear and tear, and reduced heat generation. If you’re using a brushed motor in your application, it’s worth considering whether a PWM controller could help you achieve better performance and cost savings over time.



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