Orchid Technologies combined cost-sensitive engineering with precision power electronics to craft an efficient, high-performing, three-phase power-output stage. Working closely with silicon vendors, Orchid carefully selected FET output stage devices while perfectly matching drive and sensing technology characteristics.
Orchid selected an ST7MC microcontroller as the brains of this brushless DC motor controller. The ST7MC’s feature-rich complement of flash program store, static RAM, Eeprom, patented motor controller, timers, analog-to-digital conversion circuitry, and robust processor reliability controls make the ST7MC a perfect fit in the motor control marketplace. The ST7MC’s patented motor control subsystem provides a highly cost-effective method to control many different types of brushless DC motors. Sensor and sensorless motors, 120- and 60-degree styles are all supported.