Are there any noise benefits of a Brushless motor?
Yes, with the elimination of brushes, BLDC motors can be regulated to slower operating speeds without sacrificing torque. Brushless motors can also utilize skewed magnets to reduce the effect of cogg |
What is the difference between Unipolar and Bipolar motors?
A traditional unipolar wound motor has six lead wires. Each winding has a center tap. Unipolar wound motors are typically used in applications requiring high speed and high torque. A traditional bipo |
How can I calculate my power needs?
A simple formula can be used to roughly determine what is needed power-wise. Here’s an example:
Motor Speed:
3600 RPM
Motor Torque:
340 mNm = 48 inoz = 3
|
What determines the life expectancy of a Brushed DC motor?
Typically, the brushes are the limiting component in a Brush DC motor's life expectancy. The life expectancy of the brush is dependent on application parameters such as torque, speed, duty cycle and |
What is a brushless motor?
A Brushless DC (BLDC) motor is a rotating electric machine where the stator is a classic three-phase stator like that of an induction motor and the rotor has surface-mounted permanent magnets. In thi |
What are the advantages of using a brushless motor versus a brush style motor?
No brush noise, efficient, durable, robust, easy to cool Linear current/torque Synchronous speed control Position and Speed Servo (open/closed loop) Customizable Performance Extended Life |
How do I control speed and keep it constant?
A sophisticated control system would be required to keep the speed regulated to a tight tolerance. Utilizing an encoder feedback, the customer’s control can monitor and adjust the 0-5VDC input can |
Can I run my application at extremely low speeds?
Three major problems exist with both conventional methods of
motor control and VFD control. (1) When a motor is directly coupled and run at low speed it
becomes very inefficient. One could go with |
Can a mechanical motor coupling affect the operation of the drive?
Yes, but more as a problem to the entire system including
the drive. Here is a list of Do’s and Don’ts:
DO:
Determine power requirements using both HP and torque to
choose the proper |
My pump is losing speed; does the drive have a problem?
Pumps are divided into three basic categories: centrifugal,
rotary, and reciprocating. Take any of the three types and break it down
further into four parts, the rotating element, the casing, the m |