IRMCF341

· MCETM(Motion Control Engine) - Hardware based computation engine for high efficiency sinusoidal sensorless control for Permanent Magnet AC motors
· Built-in hardware peripheral for single shunt current feedback reconstruction
· Supports both interior and surface permanent magnet motor sensorless control
· No external current or voltage sensing OP amp circuit required
· Loss minimization Space Vector PWM
· Three-channel analog output (PWM)
· Embedded 8-bit high speed microcontroller (8051) for flexible I/O and man-machine control
· JTAG programming port for emulation/debugger
· Serial communication interface (UART)
· I2C/SPI serial interface
· Three general purpose timers/counters
· Three special timers: watchdog timer, periodic timer, capture timer
· Three general purpose timers/counters
· External EEPROM and internal RAM facilitates debugging and code development
· Pin compatible with OTP ROM version

IRMCF341 is a high performance RAM based motion control IC designed primarily for appliance applications. IRMCF341 is designed to achieve low cost and high performance control solutions for advanced inverterized appliance motor control. IRMCF341 contains two computation engines. One is the Motion Control Engine (MCE^TM) for sensorless control of permanent magnet motors; the other is an 8-bit high-speed microcontroller (8051). Both computation engines are integrated into one monolithic chip. The MCETM contains a collection of control elements implemented in hardware such as Proportional plus Integral, Vector rotator, Angle estimator, Multiply/Divide, Low loss SVPWM and Single Shunt IFB. The user can program a motion control algorithm by connecting these control elements using a graphic compiler. Key components of the complex sensorless control algorithms, such as the Angle Estimator, are provided as complete pre-defined control blocks. A unique analog/digital circuit and algorithm to fully support single shunt current reconstruction is also provided. The 8051 microcontroller performs 2-cycle instruction execution (60MIPS at 120MHz). The MCE and 8051 microcontroller are connected via dual port RAM for signal monitoring and command input. An advanced graphic compiler for the MCE^TM is seamlessly integrated into the MATLAB/Simulink environment, while third party JTAG-based emulator tools are supported for 8051 software developments. IRMCF341 comes in a small QFP64 pin package.