User guide
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V 1.0.1
2021-01-27
REF-AIRCON-C302A-IM564 user guide
Air conditioner application reference design kits
System and functional description
2.2
Description of the functional blocks
The motor inverter and PFC convertor of the REF-AIRCON-C302A-IM564 reference design are implemented by
the IM564-X6D IPM module, and the PFC MOSFET gate driver is 1ED44175.
The control functions of the air conditioning system, motor and PFC are implemented by IMC302A.
Motor current sensing is single shunt mode, with lowest cost configuration of direct AD sample.
An external 14.7 X gain operational amplifiers (OPA) SGM8968-1 is used for PFC current sensing.
The flyback auxiliary power supply is based on fixed-frequency CoolSET
TM
ICE5AR4770BZS.
2.2.1
Overview of IMC302A
The IMC302A combined dual core computation, Motion Control Engine (MCE) and ARM® Cortex®-M0 based user
application controller (MCU). The internal block and application diagram is shown in Figure 10.
Figure 10
IMC302A internal block and application schematics diagram
Main features of the iMOTION™ controller IMC302A include:
Motion control engine (MCE)
MCE as ready-to-use controller solution for sensorless motor drives
Field-oriented control (FOC) for permanent magnet synchronous motor (PMSM)
Integrated protection features (overvoltage /undervoltage, overcurrent and over-temperature, etc.)
Current sensing via single shunt or leg shunt
