Evolving Motor Controller Design For Modern Robotics And Complex Automation Tasks

Pharmaceutical manufacturing is increasingly driven by robotics and automation, demanding precise, reliable, and sterile solutions. From accurate dispensing to sterile packaging, modern automation systems rely on high-performance motor and drive technologies. Brushless DC (BLDC) motors are emerging as a preferred choice, offering superior efficiency, low maintenance, and compatibility with steam sterilization—making them ideal for clean manufacturing environments.

As automated systems become more complex, motor controllers are evolving to meet new challenges. Key trends include the growing use of BLDC and Permanent Magnet Synchronous Motors (PMSMs), which require compact, high-power-density controllers. Sensorless control techniques are gaining traction due to reduced hardware complexity and improved reliability, although they present challenges at low speeds and require precise rotor position estimation via advanced algorithms.

These evolving demands also reshape the role of capacitors in motor drive systems. Higher switching frequencies and elevated DC bus voltages increase thermal and electrical stress, making capacitor selection critical. Capacitors in modern motor controllers must offer high voltage ratings, low equivalent series resistance (ESR), high ripple current tolerance, and compact designs. Durability and long operational life are essential to minimize downtime in mission-critical environments.

Knowles addresses these challenges with a portfolio of capacitors engineered for industrial motor drive applications, including Class X and Y safety capacitors, high-temperature MLCCs, film capacitors, and supercapacitors. These components help optimize performance, size, and longevity—ensuring automation systems in pharmaceutical and industrial settings operate efficiently and reliably, even under the most demanding conditions.