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2024
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08
Brushless low voltage motor vs high voltage motor, which is better
Author:
There is no one-size-fits-all answer. Choose different motors according to the application scenario. Brushless low-voltage motors and high-voltage motors have their own advantages and disadvantages.
1. power and efficiency comparison
The brushless low-voltage motor is driven by a DC converter, which has higher efficiency and higher speed range, can provide higher output power, and is suitable for application scenarios that require high speed and high power. The high-voltage motor is usually driven by AC power supply or frequency converter. Although it can also provide high power, there will be energy loss in the transmission process, and the efficiency is not as good as that of brushless low-voltage motor.
2. noise contrast
Since the rotor of the brushless low-voltage motor does not rub against the brushes of the traditional brush motor, the noise level of the brushless low-voltage motor is relatively low. The brushes of high-voltage motors cause wear and noise, so the noise level is higher.
3. life comparison
The brushless low-voltage motor has no brushes, so it has a longer service life, more reliable and more stable. The brushes of high-voltage motors will wear out with the extension of use time and need to be replaced regularly, otherwise it will affect the service life of the motor.
Discussion on 4. Application Scenarios
Brushless low-voltage motors are suitable for scenarios that require high efficiency, low footprint and precise control, such as power tools, household appliances, and even electric engines in electric vehicles. The high-voltage motor is suitable for scenarios that require large-capacity output and rough control, such as industrial production, ships and other fields.
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