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May 14,2023
Security cameras help businesses protect their property and assets. To perform their functions many of them use small motors that allow the camera to move up and down and left and right.A sensorless brushless DC motor drive uses back EMF and current sensing instead of position sensors to control its speed. This eliminates the need for Hall-effect sensors and makes the drive simpler, cheaper and more reliable.For many applications, particularly those used for video surveillance or for handheld devices that must be operated around people, noise and vibration are of particular concern. This can have a significant impact on system performance, reliability, and cost of operation. It can also result in stress injuries for users.Brushless motors have no brushes and commutator to wear out so they operate more reliably than their brushed cousins. They can also be synchronized with a digital clock signal to provide precise speed control.
The current in a brushless DC motor is controlled by switching the base drive transistor TR1 and the main switch transistor TR2 on and off at each duty cycle. Varying this pulse width can vary the armature current to vary the motors rotational speed. This is known as Pulse Width Modulation (PWM). A PWM driven motor with high current ripple will generate audible noise, which is why it is essential to select a low voltage DC brushless motor.Security camera equipment requires precise movements to capture accurate footage and images. Brushless motors are ideal for this type of equipment because they provide high torque, low noise, and smooth operation.For example, PTZ cameras require a fast movement to catch a moving threat and then slow down to ensure that it is recognizable by the camera’s lens. This motion control presents unique technological challenges that require a motor to operate smoothly at low speeds and high speed.
They can also be customized for your application with a variety of shaft and rotor options, voltages, speeds, and more. You can even choose between a RS-485 communication or digital driver for maximum flexibility and reliability. Check out our full line of security camera motors for more information.There are a lot of things to consider when choosing the right security camera for your home. You might want one that records video footage, identifies faces or even recognises vehicles. Or perhaps you want a camera that can be operated by voice control. You might also want it to have night vision.These cameras are packed with smart tech, so that you can monitor your home and business remotely. They can alert you when someone is at the door, let you know that a courier has left a package and provide enhanced low light imaging.
A key component of these systems is the motor. You will need a robust and reliable motor to ensure that your security camera can move.We manufacture some of the most rugged and dependable stepper motors for surveillance cameras on the market. You can find the perfect motor for your needs right here. We have a wide variety of options, including some that are autoclavable and can be used in medical applications.Security cameras are important tools that can help you keep an eye on your home and business when you're away. However, they also require precise movement to capture the best footage and images possible. Using a brushless motor can ensure smooth and accurate movements that will allow your camera to record high-quality footage, day or night.Additionally, a brushless motor is more efficient than a brushed motor, meaning that it uses less power and produces fewer ionizing sparks. This can help to improve battery life and reduce maintenance requirements.
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