December 2016, Vincent Mignard SPIN IT IN A MINUTE December 2016, Vincent Mignard WAIT 3 SECONDS BEFORE STARTING – PAUSE. 1. Hello Ladies & Gentleman, thanks for joining us today at Electronica, on the Renesas Booth. My name is Vincent Mignard, responsible for inverter and motor control solutions within Renesas. 2. For any project leader today , any designer and electronics engineers meeting their deadlines is a priority. It’s becoming year after year very tough. Especially when they need to integrate new functionalities in their equipment. Motor Control technology is one example which requires strong expertise in hardware designs, in PCB layout, in software controls and sensorless algorithms. That’s why, Renesas is addressing such concerns with the RX23T/RX24T MCU families. 3. The purpose of my talk is to show you how to overcome the main challenges related to inverter design: each motor has specific features: max speed, torque at low speed… high current or high voltage, … which are linked to each application. You will see how Renesas designed kits to solve such issues and how it enables you to speed-up your designs, at lower costs. 4. I divided my presentation into 3 parts: a) Which are the key challenges to overcome? B) Which MCU and solutions is Renesas offering c) Which collateral will help you to spare time & money.

RX Family reach the highest noise immunity 5 1 2 3 4 Below Average Average Excellent Expert Rating: 5 Electro-magnetic tests done on RX23T and RX24T “The MCU reached the test limits without being disturbed.” First of all, the first challenge is the equipment robustness against external noise. that 5V MCU offers the highest immunity ever after each pin test. Key benefits for the designer: robust 1st PCB, no re-spin to do, meet deadlines, cheaper BoM, as no external protection circuit needed.

VDE certified IEC60730 Self-Test software ALU/CPU checks RAM March C & X tests Flash tests using CRC Clock Check A/D Converter check Complete VDE s/w certified IEC60730 for 3-phase inverter available ! Second challenges is the safety compliance: IEC either for Sil2, Sil3 or the IEC60730. Key benefits: we did the job for you, so you spare up to EUR 20K and 4 months of s/w design, test and certification costs. The software package is delivered as source code and free of charge.

RX MCU today are in MP in noisy environments… Induction cooking Generators digital regulated e-bus inverter Dishwasher inverter Finally the 3rd key challenges that are facing engineers is to use robust MCU which are already in MP and used in existing products. The 4 examples here are showing you high switching frequencies, high voltages , high currents and dual motor control boards. All PCBs are ran with RX MCU and Renesas Software.

MCU line-up driving up to 3 motors + Active PFC In Mass production MCU line-up driving up to 3 motors + Active PFC Under Development RX24T 32-bit, FPU, 5V 100pin-144pin Flash: 384-512KB 8KB Data flash 4 x Diff. PGA, CAN Performance 32-bit, FPU, 5V 80pin-100pin Flash: 128-256KB 8KB Data flash 4 x PGA RX24T RX24T 32-bit, FPU, 5V 64pin Flash: 128-256KB 8KB Data flash 4 x PGA 80MHz 160 DMIPS RX23T 32-bit, FPU, 5V 48pin-64pin Flash: 64-128KB 40MHz 80 DMIPS Let’s move on to the second part, the Microcontroller families: 23-bit MCU, 5V, on-chip FPU , even on the smaller version of 48-pin. Common features: IEC60730 safety features. High integrated MCU. FY15 FY16 FY17

single MCU driving 2 x motors simultaneously Drain Brushless AC e.g. PMAC T0 T1 T2 T3 T4 T5 600V IPM Single/Three shunt Fault I/O DATA FLASH MTU3 DOC RAM Testing RX24T POE 12-bit A/D & PGA LVD POR RX v2 Core Floating Point Unit CAC - Clock monitoring Fault Circulation Pump Brushless AC e.g. PMAC T0 T1 T2 T3 T4 T5 Single/three shunt 600V IPM MTU3 Memory Protection Unit CODE Flash Let’s have a look at a specific example where two motors are used. The RX24T running at 80MHz is able to drive two motors using sensorless vector control algorithm and manage the Power factor correction. ECC I/O Check IWDT POE 12-bit A/D & PGA SPI A/D Self-diagnosis

What brings the RX 32-bit Floating Point Unit? Code reduction and faster implementations: no scaling or saturation Higher accuracy, as the real-life units are used Faster computation time for PI controller, estimators… Floating Point Unit General Registers 32-bit Single-Precision IEEE-754 compliant In the context of inverter, the FPU enables: Code reduction, and much more simple to read & develop, faster implementations More accuracy, as the real-life units are used Faster computation time. => Float is a way to represent real number on a Microcontroller

What about the s/w implementation on RX? FPU Each variables are used in real units: volt, hertz, henry, ampere, weber Motor models can be easily worked out without scaling efforts on each value… Higher variables resolution Easy to develop / maintain FPU Each variable needs to be normalized…

Blocks of the Royalty-Free Software using FPU Sensorless drive at low-speed Dead-time compensation Position control/torque control/ speed control Auto-tuning Stator resistance compensation Parameters self-identification Bus Voltage automatic compensation Current PI automatic calibration Vector Control Algorithm PI control Current & Speed Modulation Space Vector Clamped Anti-windup Centred Current control Max. torque control Flux weakening control Max. efficiency control Power factor control Direct Current control Let’s move to the second point: the Solutions benefits and details. Sensorless estimation Method using Integral estimation Model using Direct Integration αβ conversion dq conversion Decoupling control Salient pole Non-salient pole Position detection Speed detection

Sensorless Algorithm: Fast time response & Dynamics CPU USAGE 35% LOW CPU LOAD FLASH USAGE 20KB RAM 2KB SMALL MEMORY FOOTPRINT RX23T 32-bit @ 40MHz 80 DMIPS with FPU Based on the RX23T, a complete inverter kit is available, we spent effort to design a very open and flexible one. The software is royalty free. Full sensorless vector control algorithm ready for Mass Production, Timing given with debug functionalities turned OFF and tuning capabilities turned OFF

Enhanced Auto-tuning s/w enable driving of unknown motors in a few minutes Current PI coefficients tuned ! Stator resistance, synchronous inductance, permanent magnet flux tuned ! Oscilloscope to display Motor Phase and current Partname: YROTATE-IT-RX23T Key benefits: no expensive tools or oscilloscope is needed, after a fey clicks the motor is spinning.

HIGH SCALABLE and compatible power stages Compatible to any Renesas Inverter kits designed over the last 10 years: From low voltage, low current Up to high voltage, high current From low to high speeds motors 60VDC 120APeak 300VDC 20APeak 48VDC 6APeak Let’s move now to the final part: the collaterals. => Such existing hardware enable you to address any type of motors, so you will spare time and efforts for a first running prototype.

Up to 80 motors quickly tuned thanks to the Auto-tuning and Self-Calibration Rated current 40A 10A 7A 6.5A 5A 3.5A PROVEN software! 3A 2.2A 2A 1.8A 1A Bus Voltage 8V 15V 24V 36V 42V 44V 300V

Latest development: RX24T Dual motor control Kit Two Motors Control & Active PFC YROTATE-IT-RX24T-2MC-PFC 32-bit RX @ 80MHz / 160 DMIPs 5V MCU, Floating Point Unit Comparators, Op-Amp, safety shutdown, outstanding noise immunity Inverter kits: royalty-free vector control software, sensorless, Auto-tuning by default, Low footprint, highly proven software reliability

New Collaterals, Tutorials dedicated to engineers Video link: https://www2.renesas.eu/videos/europe.html?p=&v=Rp45IQyWB0I

Spin it in a minute Highest noise immunity Single/dual inverter kits available Auto-tuning software enable by default Large Scalable power stages offer FPU ensures fast sensorless control Royalty free embedded Software VDE Certified Self-test SW Thanks for your time, now you deserve a kit ! Visit us at www.renesas.eu/motor

Thanks a lot for your attention | vincent.mignard@renesas.com