infineon公司的IRMCK099是基于低成本高性能OTP存儲器的運動控制專用集成電路(ASIC),包括用于無傳感器控制永磁電機的靈活的微小運動控制引擎(TinyMCE),具有內部振蕩器,頻率高達100MHz,內置了用于單個或兩個并聯電流反饋重構和模擬電路的硬件接口,OTP存儲器16KB,MCE數據RAM 1.5KB,MCE程序RAM12KB,主要用在泵和風扇,無人機,家用電器和其它PMSM驅動.本文介紹了IRMCK099主要特性,框圖,引腳連接圖和應用電路,以及評估板EVAL-M1-36-45A主要特性,電路圖,材料清單和PCB設計圖.

IRMCK099 is a low cost, high performance OTP memory based motion control ASIC designed primarily for appliance applications. IRMCK099 is designed to implement high performance control solutions for advanced inverterized appliance motor control. IRMCK099 contains the flexible Tiny Motion Control Engine (TinyMCE) for sensorless control of permanent magnet motors over the full speed range. The TinyMCE implements sensorless Field Oriented Control using single or leg shunt current feedback by a combination of hardware and IR-supplied firmware elements. Key components of the complex sensorless control algorithms, such as the Angle Estimator, are provided as complete pre-defined control blocks. The ASIC is designed to eliminate external components and reduce cost by including an A/D converter, analog amplifiers, an overcurrent comparator, watchdog timer and internal oscillator. Strong startup and configuration tools get the motor running quickly without any programming. A standby power mode can help to increase overall system efficiency. IRMCK099 comes in a 5mmx5mm, 32 pin QFN package.

IRMCK099 is a new generation International Rectifier integrated circuit device primarily designed as a one-chip solution for inverterized appliance motor control applications. Unlike a traditional microcontroller or DSP, the IRMCK099 provides a built-in closed loop sensorless control algorithm using the unique flexible Tiny Motion Control Engine (TinyMCE) for permanent magnet motors. The MCETM consists of a collection of control elements, motion peripherals, a dedicated motion control sequencer and internal memory to map internal signal nodes. IRMCK099 also employs a unique single shunt current reconstruction circuit in addition to two leg shunt current sensing circuit to eliminate additional analog/digital circuitry. Integrated op-amps and A/D converter enable a direct shunt resistor interface to the IC. Four analog inputs and up to eight digital I/O provide resources for application specific functions. Figure 1 shows a typical application schematic using the IRMCK099. IRMCK099 contains 16 Kbytes of OTP program memory and comes in a compact 5mm x 5mm 32-pin QFN package.

IRMCK099主要特性:

? TinyMCE (Tiny Motion Control Engine) - Dedicated computation engine for high efficiency sinusoidal sensorless motor control
? Internal Oscillator – no clock required
? Built-in hardware peripheral for single or two shunt current feedback reconstruction and analog circuits
? Supports both interior and surface permanent magnet motor sensorless control
? Loss minimization Space Vector PWM
? Internal ITRIP comparator
? Two-channel analog output (Sigma Delta D/A)
? JTAG programming port for debugging
? UART and I2C serial interface
? Factory Calibrated Analog Inputs
? Capture input
? Watchdog timer with independent internal clock
? Standby low power mode
? Internal 16 Kbyte OTP memory
? CRC Memory Check
? 3.3V single supply
IRMCK099概述:
Internal clock frequency (SYSCLK) 100MHz
MCETM computation time 1 SYSCLK
MCETM computation data range 16 bit signed
OTP Memory 16KB
MCE Data RAM 1.5KB
MCE Program RAM 12KB
FAULT latency (digital filtered) 2 μsec
PWM carrier frequency 1 – 20kHz
A/D input channels 6
A/D converter resolution 12 bits
A/D converter conversion speed 2 μsec
Analog output (PWM) resolution 8 bits
UART baud rate (typ) 57.6 Kbps
Number of digital I/O (max) 8
Package (lead free) QFN 5x5 32L
Typical 3.3V operating current < 30mA
Standyby mode power consumption 3.5mW
Integrated Temperature Sensor(typ) ±5degC

IRMCK099應用:

Pumps & fans
Drones, multicopters
Home appliances
Any other PMSM drive

圖1.IRMCK099框圖

圖2.IRMCK099引腳連接圖

圖3. IRMCK099典型應用框圖

評估板EVAL-M1-36-45A

The EVAL-M1-36-45A evaluation board is a part of the iMOTION? Modular Application Design Kit for drives(iMOTION? MADK).

The MADK-platformis intended to use various power stages with different control boards. These boards can beeasily interfaced through the 20 pin iMOTION?MADK-M1 interface connector.

This evaluation board was designed to give comprehensible solutions of a power stage featuring CIPOS?. Theboard is equipped with all assembly groups for sensor less field oriented control (FOC). DC-link is provided bydirect DC-input to give direct control to DC-ripple by external source. It contains in every of three output phasesemitter-shunts for current sensing and a voltage divider for DC-link voltagemeasurement.

The EVAL-M1-36-45A evaluation board is available fromInfineon. The features of this board are described in thedesign feature chapter of this document, whereas the remaining paragraphs provide information to enable thecustomers to copy,modify and qualify the design for production, according to their own specific requirements.

Environmental conditions were considered in the design of the EVAL-M1-36-45A. The design was tested asdescribed in this document but not qualified regarding safety requirements ormanufacturing and operationover the whole operating temperature range or lifetime. The boards provided by Infineon are subject tofunctional testing only.

Evaluation boards are not subject to the same procedures as regular products regarding Returned MaterialAnalysis (RMA), Process Change Notification (PCN) and Product Discontinuation (PD). Evaluation boards areintended to be used under laboratory conditions by specialists only.

圖4.評估板EVAL-M1-36-45A外形圖
評估板EVAL-M1-36-45A主要指標:

圖5.評估板EVAL-M1-36-45A電路圖:三相逆變器(CIPOS nano IPM)

圖6.評估板EVAL-M1-36-45A電路圖:過流保護

圖7.評估板EVAL-M1-36-45A電路圖:電源
評估板EVAL-M1-36-45A材料清單:

圖8.評估板EVAL-M1-36-45A PCB設計圖:頂層裝配

圖9.評估板EVAL-M1-36-45A PCB設計圖:底層裝配

圖10.評估板EVAL-M1-36-45A PCB設計圖:頂層走線

圖11.評估板EVAL-M1-36-45A PCB設計圖:底層走線