Four quadrant control algorithm boosts motor control performance

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By Nick Flaherty

The Juno Velocity and Torque Control devices are aimed at next-generation life science and healthcare applications to provide greater motor efficiency, precise current control and accurate velocity profiles. Used in servo motor applications in liquid pumping or high-speed motor control, tthe controllers opereate over a wide range of operating conditions for brushless DC, DC brush and stepper motors.

The Juno ICs eliminate the need for multi-component designs that demand significant amounts of board space and firmware development and have limited speed control accuracy that result in noisy motor operation and significant heat generation. Engineers have also been required to create their own interface and safety protocols. Juno ICs ensure safe and optimal motor performance and include over current, over and under voltage, over temperature, current integration limits, and communication monitoring.

“The Juno IC’s four-quadrant control allows precise ramp up and down,” said Chuck Lewin, President of Performance Motion Devices. “There is no other velocity IC on the market today that offers this functionality. The combination of velocity and torque control with intelligent safety and performance monitoring delivers the ultra-efficient motor control that will help our customers improve development time and system safety.”

The Juno ICs are compact and available in a 64-pin TQFP or 56-pin VQFN package, and measure 10 mm x 10 mm or 7.2 mm x 7.2 mm, respectively. The Juno ICs are easy to deploy with preprogrammed motion commands and on-board intelligence.

Lab Automation applications include liquid pumping, centrifuges, and laser scanners. Medical device applications include dialysis, heart assist-pumps, drug infusion and ventilators. Juno IC’s compact size, four-quadrant functionality, ultra-efficient operation, and ability to bring motor intelligence to customer systems make it ideal for any spinning motor application.


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