In a world where electric motors rotate, how can we explore a more elegant movement posture?

Even with a current control chopper mode like SpreadCycle, there is still a little audible noise and vibration due to motor coil differences, a few millivolts of adjustment noise on the sense resistor, and PWM jitter. StealthChop, based on voltage chopping technology, overcomes this problem by modulating the current according to the PWM duty cycle, thereby generating a perfect current sine wave. In addition to the unavoidable sound of the motor bearing steel ball friction, StealthChop can drive the motor to work in extreme silence, achieving a control motor sound below 10dB, which is much lower than the traditional current control method.

How can large energy consumers support the future of a “dual-carbon” world?

According to the International Energy Agency, motors account for 45% of the world's total electricity consumption. Therefore, the reliability and energy efficiency of electronic products driven by motors not only have a direct impact on the comfort and convenience of various applications, but also have a profound impact on the sustainability of the world's environment. Under the pressure of the global dual-carbon goals, the low-energy consumption technology of energy-consuming "big-user" motors will become the key force to support the "dual-carbon" world.

Motor energy consumption usually depends on the drive current control, which is also the key focus of low-power optimization of motor drive control. In the absence of feedback from the stepper motor, the system always assumes that the motor is running at the set current. Conventional motor drive currents are constant currents, that is, the power consumption of the motor is constant, and its drive current remains the same regardless of whether the load is large or small. In fact, in many application scenarios, load changes are very frequent, and low load and high power consumption make energy meaningless waste. Closed-loop operation of the motor can effectively improve the efficiency and overall performance of the application by reducing the current when the motor is in standby and increasing the current under load conditions. However, if the load is to be monitored to achieve closed-loop control of the drive current, the increased cost is usually unacceptable for many applications.

Ecovent, a Comfort IoT System for Homes and Buildings, features a smart stepper motor IC from ADI Trinamic at the heart of the smart vent, which runs on four AA batteries, keeping the system wirelessly connected while ensuring a 3 to 5 year battery life.

ADI Trinamic sensorless load measurement technology StallGuard™ provides a cost-effective real-time load feedback technology. By measuring the back EMF of the motor, it can know when the motor may stall and send a signal to the system. Based on the StallGuard load value, the sensorless current adaptive control CoolStep technology detects the motor load through the change of back EMF and adapts the current to the actual load conditions, thereby achieving the goal of energy saving and consumption reduction. CoolStep always drives the motor with the optimal current, saving a lot of energy by reducing the current to a minimum when the motor is lightly loaded and increasing the current when the load increases. Especially for some battery-powered systems, or for some situations where the motor heats up after long-term operation in some workshops, as well as some biological sample detection applications that are sensitive to high temperatures, CoolStep can effectively reduce power consumption and overcome heating problems. Motor heat dissipation can be reduced by up to 80%, keeping the motor temperature normal and improving the reliability of the entire system.

Motor applications are everywhere, key technologies enable a better world

In order to make people enjoy using 3D printers at home and in the office, BCN3D, a Spanish 3D printing equipment manufacturer, uses the ADI Trinamic TMC2130 solution to achieve truly silent printing (currently the top ten 3D printing equipment manufacturers in the world have all chosen the ADI Trinamic motor control solution); in order to more quickly and consistently identify, enumerate and characterize suspected malaria blood samples, Israeli company Sight Diagnostics has developed a unique diagnostic technology device based on the ADI Trinamic drive solution; Swiss coffee machine manufacturer Thermoplan combines original design with the latest technology of ADI Trinamic to make every cup of coffee a perfect brew with latte art as the ultimate embellishment...

Thanks to professional precision motion control solutions like ADI Trinamic, today, motors have been widely used in all aspects of society under the technological development trend of miniaturization, digitization, energy saving and intelligence. Almost all electronic products that can be seen everywhere in life have motors playing an important role . The high precision, quietness, intelligence and energy saving of motor drives allow these products to be integrated into our lives in a more elegant way. This is also the corporate philosophy that ADI has always advocated - "Engineering Good", making our lives better with innovative technology.