MUNICH, Germany For engineers trying to combine industrial and consumer motor control design targets such as very low cost and high power efficiency, Infineon offers a design kit tailored for this purpose.
Uncontrolled motor applications in home and industrial appliances such as dish washers, washing machines, air conditioners and the like have a bad reputation as energy hogs. Experts say that the total electric power consumption could be reduced by up to 30 percent if AC and DC motors would be controlled in a way to optimize their energy usage. Field Oriented Control (FOC) is a technique developed for this purpose, and since it does away with sensors it also enables very cost-effective solutions. The catch is that FOC applications are very computational intensive and hence require relatively powerful processors.
Infineon now offers a design kit that enables the design of FOC applications, using the company's XC886 series of 8-bit MCUs which support FOC. The design kit also makes use of the vendor's CIPOS (Control Integrated Power System). The three-phase Motor Drive Applications Kit also offers designers a shorter time-to-market, while allowing for excellent torque dynamics, reduced noise and high system reliability, Infineon claims.
With its FOC motor control software, the development kit incorporates a reference platform capable of driving both permanent magnet synchronous motors (PMSMs) as well as induction motors (ACIMs) with power ratings of up to 750 watts.
The XC886 MCUs combine an enhanced 8051 core with a 16-bit vector unit and a broad range of peripherals including a 10-bit ADC and a capture compare unit. The CIPOS power module further improves the cost efficiency in that it eliminates 23 discrete components, Infineon says.