22/09/2014 PILOTAGGIO EFFICACE DI MOTORI BASSA TENSIONE a cura di Luca Salati EMEA Marketing Manager STMicroelectronics To drive LV motors in… Industrial Medical • • • • • Diagnostic Equipment • Breath support equipment • Pumps Stage lighting Textile industry (sewing, knitting) PCB assembly / analysis Robotics, NC machines Point Of Sales Gaming • • • • • Casino machine • Gambling machines • Coin / banknotes management Ticket machines Bill counters ATM systems Vending machines Intelligent buildings Press equipment • Security systems • Camera positioning / focusing • Antenna / satellite positioning • Industrial Printers • Paper folding, cutting machines • Shredders Wherever Stepper, DC & BLDC motors are used! 1 22/09/2014 The right product is inside HV Motor Driver LV Motor Driver DC & BLDC Stepper powerSPIN powerSPIN Dual H-bridge • L6205 • L6206 • L6207 • L6225 • L6226 • L6227 • L6206Q • L6207Q • L6226Q • L6227Q Three ph. bridge • L6229 • L6230 • L6234 • L6235 • L6229Q • L6230Q • L6235Q Dual H-bridge with controller • L6208 • L6228 • L6208Q • L6228Q Micro-Stepper Micro-Stepper up to 100V gapDRIVE cSPIN dSPIN SPI µStepper driver with motion engine • L6470 • L6472 • L6460 4kV Isolated driver for IGBT/Mos • STGAP1S SPI µStepper controller with motion engine • L6480 • L6482 powerSTEP easySPIN Basic Line Dual H-bridge with controller • L6219 SPI µStepper driver • L6474 µStepper driver • L6258 DC, AC & BLDC SPI µStepper controller with motion engine + 8 mosfet 16mohm integrated • powerSTEP01 Smart L638x DRIVE series Smart DRIVE 600V HB driver for IGBT/Mos • L6384 • L6385 • L6386 • L6387 • L6388 • A6387 600V HB driver for IGBT/Mos with OPAmp, smart ShutDown • L6390 • L6391 • L6392 • L6393 • L6395 • L6398 TD3xx series Fully protected single ch. driver • TD350 • TD351 • TD352 • TD310 Basic Line Single H-bridge • L6201 • L6202 • L6203 Enhanced family: powerSTEP01 introduction Controllers + integrated MOS L62xx / Q Full set of protections Controller L6474 L6470 / 72 PowerSTEP01 L6480 / 82 Full set of protections Full set of protections Full set of protections Full set of protections current control with adaptive decay Voltage and current mode control Voltage and current mode control Voltage and current mode control SPI and programmable diagnostic Digital core allows simpler SW Digital core allows simpler SW Digital core allows simpler SW SPI and programmable diagnostic SPI and programmable diagnostic SPI and programmable diagnostic Integrated power stage 8 x 16mW / 85V MOS Output for external mosfet driving Integrated power stage up to 100W TARGET APPLICATION: BASIC – MID PERFORMANCE LEVEL TARGET APPLICATION: PERFOMANCES MARKET BENCHMARK SUPERIOR INTEGRATION LEVEL 2 22/09/2014 3 things to remember 1. Digital Motion Engine 2. Voltage / current mode current control 3. Compactness 1. Digital Motion Engine µC SPI Power Positioning command example µC sends just high level command via SPI Speed command example …and it generates the motion + switches from mstep to full-step mode to increase the torque at high speed with a low impact on motion smoothness + manage an external switch to immediately stop/calibrate + select a wide range of PWM frequencies + slew-rate setting via SPI in order to fit the application EMI / Power dissipation tradeoff 3 22/09/2014 1. Digital Motion Engine Intelligence inside the driver – System advantages Application benefits • No need of complex subroutines development, just simple commands via SPI (position, speed profile) • Lighter architecture thanks to integrated Digital Motion Engine • Higher precision and smoothness in the motor control with the widest set of protection standard APPROACH ST APPROACH: simpler, cheaper Smaller MCU dSPIN SPI dSPIN SPI dSPIN SPI DIGITAL MOTION ENGINE is available in dSPIN, cSPIN and powerSTEP 2. Current mode control PowerSTEP Features c d cSPIN dSPIN Chip regulates average current vs. the conventional peak current control Predictive current control • • Best smoothness Most accurate positioning PowerSTEP Adaptive decay • • • • Torque ripple reduction Less vibrations Soft and silent Motion Precise positioning Chip automatically performs the best decay during the motor driving Slow, fast or combination of both mixed decay c d cSPIN dSPIN Performance 4 22/09/2014 2. Voltage mode control From current to voltage mode • • • • Current profile is very smooth No compromise on current ripple. No mixed decays No tuning of the decays Best decay is always used with each motor Average current is controlled. Accurate positioning Smooth current transient reduces mechanical vibrations. Motor movement is soft and silent! Constant switching frequency Torque ripple and EMI are under control. 3. Integration & compactness The new PowerSTEP01 • Operating voltage: 7.5 V - 85 V • Dual full-bridge with RDSON = 16 mΩ • Up to 1/128 microstepping • Digital Motion Engine for voltage/current mode • Adjustable output slew-rate • Programmable speed profile • Positioning commands • • • • Sensorless stall detection Integrated voltage regulators SPI interface Full set of protections Full production by December 5 22/09/2014 If “discrete” can fit better when PowerSTEP is too oversized or small Controller New series of 30 ÷ 120V Power MOSFET H7 / F7 series L6480 / 82 Full set of protections 3-directions leadership Voltage and current mode control Digital core allows simpler SW SPI and programmable diagnostic Output for external mosfet driving F7/H7 series LV Mosfet Product snapshot 6 22/09/2014 SUPPORT TO THE DESIGN Evaluation Boards All-in-one Discovery Kits New Nucleo Motor Control shields Graphical User Interface for PC Firmware Libraries (for STM32) Communication board (same for all): STEVAL-PCC009V2 + easySPIN EVAL6474H / PD + dSPIN EVAL6470/2 H / PD + cSPIN EVAL6480/2 H / PD dSPIN discovery: EVAL6470 / 2H-DISC Coming soon: cSPIN discovery kits EVAL6480/2-DISC easySPIN: X-NUCLEO-IHM01A1 dSPIN shield to come in November/2014 Available on st.com for all the listed products Available on st.com product pages for: dSPIN and easySPIN L647xH L647xPD has the widest product range for LV motor control with features / performances differentiation offers easy-to-use tools (HW & SW) guarantees best-in-class technical support GRAZIE 7
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