Infineon REF-AIRCON-C302A-IM564 User Manual Download Page 44

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User guide

44 of 45

V 1.0.1

2021-01-27

REF-AIRCON-C302A-IM564 user guide

Air conditioner application reference design kits

Revision history

Document
version

Date of release

Description of changes

1.0

2020-11-25

First release

1.0.1

2021-01-27

Correct some textual details

Summary of Contents for REF-AIRCON-C302A-IM564

Page 1: ...The starter kit features and demonstrates Infineon s CIPOSTM Mini IPM and advanced motion control engine MCE 2 0 technology for PMSM BLDC motor and PFC driver up to a rating of 600 V and 20 A It is op...

Page 2: ...d by the customer The customer shall ensure that all Evaluation Boards and Reference Boards will be handled in a way which is compliant with the relevant requirements and standards of the country in w...

Page 3: ...power to discharge the bus capacitors Do not attempt to service the drive until the bus capacitors have discharged to zero Failure to do so may result in personal injury or death Caution The heat sink...

Page 4: ...ew of ICE5AR4770BZS 19 2 2 5 Design tips for direct motor current sensing 20 2 2 6 Design tips for PFC current sensing 22 3 System design 24 3 1 Inverter section of REF AIRCON C302A IM564 24 3 2 PFC s...

Page 5: ...content The board is equipped with all assembly groups for sensorless field oriented control FOC and reserved interface for BLDC AC fan control relays and 4 way valve control and 3 channel temperature...

Page 6: ...N C302A IM564 reference design 2 1 10 7 9 1 220 VAC PE input connector 2 EMI filter 3 In rush relay control 4 On board PFC inductor 5 Heat sink IM564 1ED44175 input rectifier 6 UVW motor phase connect...

Page 7: ...is 250 mm 157 mm 2 layers 1 oz copper RoHS compliant 1 4 Board parameters and technical data Table 2 depicts the key specifications of the reference design of REF AIRCON C302A IM564 Table 2 REF AIRCON...

Page 8: ...output current Iout1 150 mA Auxiliary power supply 2 12 V Output voltage Vout2 Used for relay control 12 10 V Maximum output current Iout2 300 mA Auxiliary power supply 3 5 V Output voltage Vout2 Used...

Page 9: ...o UART cable is needed to bridge the PC debugger side and motor drive system the target iMOTION device hot side with 1 kV DC galvanic isolation The iMOTION software tools MCEDesigner and MCEWizard are...

Page 10: ...AIRCON C302A IM564 user guide Air conditioner application reference design kits System and functional description Figure 4 shows the MCEWizard welcome page and interface of MCEDesigner Figure 4 MCEWiz...

Page 11: ...ted then save the drive parameter set into your project directory by clicking Export to MCEDesigner file txt Figure 5 if an error is detected double click on the error message highlighted in RED and a...

Page 12: ...page click Tools Programmer and select Program Firmware and Parameters shown as Figure 7 below The encrypted firmware is available in IMC302A MCE Software Package regarding the parameters file browse...

Page 13: ...ent sensing related parameters are correctly configured If PCB layout and DC bus decoupling have been done correctly After VF Diagnostic is done click STOP button the red traffic light button to stop...

Page 14: ...ce the firmware has been programmed in case a new parameters file has to be programmed follow the same instructions given in step 9 In this case firmware programming is no longer needed and it is poss...

Page 15: ...al amplifiers OPA SGM8968 1 is used for PFC current sensing The flyback auxiliary power supply is based on fixed frequency CoolSETTM ICE5AR4770BZS 2 2 1 Overview of IMC302A The IMC302A combined dual c...

Page 16: ...uit withstand time is 5 s Recommended minimum input pulse width is 1 s Recommended external dead time of motor PWM is 1 5 s Maximum motor PWM carrier frequency is 20 kHz PFC continuous input ability i...

Page 17: ...guide Air conditioner application reference design kits System and functional description Figure 11 Block diagram of IM564 X6D The IM564 X6D is in DIP 36x21D package the pin definition and package ou...

Page 18: ...otection and fault enable pin Overcurrent detection with negative input 246 mV overcurrent threshold with accurate 5 tolerance Enable input and fault output Output in phase with input active high inpu...

Page 19: ...switching frequency with 700 V integrated MOSFET Power delivery of up to 15 W with universal wide input range 85 300 VAC DCM design Brown in protection fast and robust start up operation with cascode...

Page 20: ...y the divider of R83 R77 with bias of 49 mV and gain of 0 99 83 77 83 1 1 0 01 1 1 0 99 1 R77 C51 is a low pass filter LPF for switching noise suppression whose time constant is about 0 1 0 5 s normal...

Page 21: ...or power dissipation RS2 must be much higher than 10 mOhm to achieve enough current sensing signal to noise ratio SNR and improve control performance For example to achieve sufficiently high SNR motor...

Page 22: ...REF AIRCON C302A IM564 board i e PFC current sensing cannot use the direct AD sample mode any more An 11 MHz rail to rail I O CMOS OPA SGM8968 1 is used for PFC current sensing to achieve enough comm...

Page 23: ...er configuration Figure 19 PFC current feedback with external op amp For better CMR ability a balanced differential amplifier is highly recommended which means R73 is equal to the value of R5 R60 in p...

Page 24: ...ir conditioner applications To meet individual customer requirements and to make the REF AIRCON C302A IM564 reference design a basis for development or modification all board design data such as schem...

Page 25: ...e 21 Schematics for PFC driver and current sensing A 1ED44175 used for PFC MOS drive and PFC overcurrent protection R66 R71 select the threshold of 1ED44175 s OCP default setup is 33 3 APEAK which is...

Page 26: ...ation fixed frequency CoolSETTM ICE5AR4770BZS is used for the flyback auxiliary power controller to output 15 V and 7 V Figure 22 depicts the schematic of the auxiliary power supply for the REF AIRCON...

Page 27: ...This board has two electrical layers with 35 m copper 1 oz copper and dimensions of 250 mm 157 mm The thickness of the PCB board is 1 6 mm Contact our technical support team for more detailed informa...

Page 28: ...Air conditioner application reference design kits System design The top layer and bottom layer routing of the PCB is provided in Figure 24 and Figure 25 Figure 24 Top layer routing of the REF AIRCON...

Page 29: ...A low side driver with OCP Infineon 1ED44175 2 U7 iMOTIONTM Motor control IC with additional microcontroller Infineon IMC302A F064 3 U9 Fixed frequency 700 V CoolSETTM Infineon ICE5AR4770BZS DIP 7 4 U...

Page 30: ...1 J12 Table 5 J11 iMOTIONTM Link connector Pin Label Function 1 SWDCLK A core debug CLK 2 SWDDIO A core debug IO 3 6 5 V On board 5 V supply 4 5 GND Ground 7 RXD0 MCEDesigner firmware download Same as...

Page 31: ...SDA Data wire for I2C bus 5 WC Write protection for EEPROM 3 7 Test points Table 9 provides the assignments of the on board test points Table 9 Test points on REF AIRCON C302A IM564 Pin Name Function...

Page 32: ...e maximum motor power at different cooling modes 1400 W at natural cooling mode IPM TC reaches 105 C 2500 W at 1 m s air cooling mode input common mode choke reaches 105 C Figure 26 REF AIRCON C302A I...

Page 33: ...C thermistor is 85 kOhm at 25 and its B constant is 4092 typical resistance and output of the temperature sensing voltage is listed in Table 10 Table 10 NTC Thermistor characteristics Temperature Resi...

Page 34: ...n can be calculated as shown below and configured in MCEWizard as shown in Figure 28 The MCEWizard default setup is at 3 9 V which sets the shutdown NTC temperature Tprotection to about 90 C when the...

Page 35: ...ternal comparators is set by IMC302A s internal DAC and external C36 is the LPF capacitor for DAC MCEWizard calculates the DAC reference voltage based on the question input of Device Overcurrent trigg...

Page 36: ...User guide 36 of 45 V 1 0 1 2021 01 27 REF AIRCON C302A IM564 user guide Air conditioner application reference design kits System performance Figure 31 Motor overcurrent protection setup in MCEWizard...

Page 37: ...ernal GateKill Comparator with a reserve of at least a 20 margin Or set 70 90 of the motor demagnetization current for the OCP threshold Figure 32 shows the OCP test result of REF AIRCON C302A IM564 S...

Page 38: ...302A s MCE firmware has two options for PFC overcurrent protection cycle by cycle and latch up OCP Figure 33 shows the OCP behavior of cycle by cycle current protection When input current Iac reaches...

Page 39: ...plication reference design kits System performance Figure 34 shows the behavior of latch up OCP When input current Iac reaches 18 APEAK and IPFCTRIP reaches 4 86 V OCP threshold PFC Gatekill fault occ...

Page 40: ...ON C302A IM564 reference design The high side resistor is 1880 kOhm and the low side resistor is 20 k 0 475 V DCBUS reflecting 0 5 V at the ADC input pin Figure 35 DC bus sense resistor on REF AIRCON...

Page 41: ...PWM periods 25 s for 40 kHz PFC and higher than motor PWM periods 166 s for 6 kHz motor PWM C34 can be adjusted to fit PFC voltage loop response Figure 37 shows the MCE firmware behavior of overvoltag...

Page 42: ...performance test Figure 38 shows the test result of PFC performance test at the conditions below Set VDC 340 V input VAC 200 V Increase motor load input power about 1430 W IAC 7 15 A PF 0 999 THD 3 44...

Page 43: ...protection OTP over temperature protection IDU Indoor unit FOC Field oriented control CMR Common mode noise rejection LPF Low pass filter 5 2 References 1 Datasheet of Infineon IM564 X6D 2 Datasheet...

Page 44: ...IRCON C302A IM564 user guide Air conditioner application reference design kits Revision history Revision history Document version Date of release Description of changes 1 0 2020 11 25 First release 1...

Page 45: ...nditions and prices please contact your nearest Infineon Technologies office www infineon com WARNINGS Duetotechnicalrequirementsproductsmaycontain dangerous substances For information on the types in...

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