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The XC800 8-bit MCU family is ideal for a broad range of applications including motor control, transportation, building automation, automotive body, air conditioning or industrial automation. With the XC886/888 MCUs the family includes the industry first 8-bit microcontrollers providing the powerful Field Oriented Control (FOC), while the high-end XC878 supports both FOC and PFC (Power Factor Control) for complex and very efficient motor control applications. These advanced motor control techniques are increasingly used in consumer and industrial drives addressing the design focus on higher efficiency, better dynamic response and reduced audible noise. In addition to starter kits and evaluation boards Infineon provides complete application kits in order to enable rapid development of cost and energy efficient designs.
With the XC800 family Infineon has combined an 8051-core with embedded flash memory of 4KByte to 64KByte and pin-count from 20 to 64 pins. To reduce system costs features such as oscillator, voltage regulator, EEROM and supervisory circuits are integrated. Different flash sizes, scalable peripherals and innovative features like FOC make it easy to select the right product for a dedicated application. The scalable XC 800 MCUs are well-suited for a wide range of 5V and 3V applications.
Key features of the XC866 at the low-end side are: up to 16KByte Flash, 20 to 38 pins, fast 10-bit ADC and a high-performance PWM unit (CCU6). In addition to the features and peripheral set of the XC866 the XC886/XC888 offers: up to 32KByte Flash, 48 to 64 pins, a MultiCAN module and a vector computer for FOC motor control. The high-end XC878 provides up to 64KByte Flash and 64 pins. It also includes a vector computer for FOC. The XC878 family is capable of supporting both PFC and FOC and enables excellent torque dynamics, reduced noise and higher energy efficiency for motor drives in industrial and automotive applications. A complete set of development tools and starter/application kits enable the fast and cost-effective application development based on the different variants of the XC800 family.
Application focused development support
Development systems may be classified into two distinctive groups: product focus and application focus. The product-focused systems are typically designed by the semiconductor manufacturer to highlight and evaluate the features of the product. Application-focused systems, such as motor control demos, may also vary from a narrow or broad market scope. That is, the suitability to a specific application will vary.
Application focused systems can be very helpful when an engineer has been tasked with expanding a company's design capabilities. For example, a company that produces electronic controls for brushed DC motors may need to move to Brushless DC (BLDC) motors quickly for some newer product lines. The best solution for rapid development and demonstration would be to find a system that is easy to use, self-contained, includes an IDE and application software and also provides fairly extensive documentation. With all the needed elements, including the BLDC motor, the design team can demonstrate the working technology. The solution is general and still needs to be adapted to the target products but the basic feature set is in place. This type of platform is called the application kit.
Fig. 1: 3-Phase motor drive kit.
Support for 3-phase motor drive designs
Addressing the increasing need for advanced motor drive solutions, a 3-phase motor drive application kit for permanent magnet synchronous motors (PMSM) and induction motors (ACIM) is available. The key components of the kit are the 8-bit XC886 MCU capable of running field oriented control, the CIPOS intelligent power module (IPM), the onboard switched mode power supply (SMPS) based on COOLSET and a complete software package.
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