TI Solution for Vacuum Cleaning Robot

Transcription

1 TI Solution for Vacuum Cleaning Robot

2 TI Solution for Vacuum Cleaning Robot TOPICS System Block Diagram Overview TI Battery Management for Vacuum Cleaning Robot TI Motor Driver Solution for Vacuum Cleaning Robot TI Power Solution for Vacuum Cleaning Robot TI TOF Technology for Vacuum Cleaning Robot 2

3 Presenter Introduction Patrick Zeng is Field Application Engineer in South China Team and now focuses on industry market and is responsible for supporting appliances customers 3

4 System Block Diagram Overview

5 Typical System Block Diagram of Vacuum Cleaning Robot Wide Input DC Battery Management System Monitor Reset M Side Brush AFE(Protection & Monitor& Gauge) Charger Temp Sensor Digital Processor BLDC Motor Driver BDC Motor Driver MOSFET MOSFET Power Stage OP AMP Signal Sampling M M M Hall Sensors ESD Signal Protection Suction Motor Rotating Motor Wheel Drive Right & Left DCDC LDO Power Supply Wide Input DC Touch Knob/Dial User Interface LED Driver Audio Imager Controller Obstacle Detection MCU/MPU Power Vision Sensor

6 Typical System Block Diagram of Vacuum Cleaning Robot Wide Input DC Battery Management System Monitor Reset M Side Brush AFE(Protection & Monitor& Gauge) BQXXX Charger BQXXX Temp Sensor Digital Processor DSP BLDC Motor Driver BDC Motor Driver MOSFET MOSFET Power Stage OP AMP Signal Sampling M M M Hall Sensors ESD Signal Protection Suction Motor Rotating Motor Wheel Drive Right & Left DCDC LDO Power Supply Wide Input DC LDCXXX FDCXXX Captivate Haptics User Interface LED Driver Audio 3D TOF Controller 3D TOF Sensor MCU/MPU Power Vision Sensor

7 TI Battery Management Solution for Vacuum Cleaning Robot 7

8 TI Battery Management Solution Overview Gauge Flash based (1% accuracy) ROM based (5% accuracy) Low cost gauge Energy storage and transfer BMU (Charger and Gauge) Wireless Power Supercapacitor Renewable Energy Harvesting Monitor & Protection High cell count precision AFE & cell balancing Primary, secondary & total protection Enhanced safety w/ ID and authentication Linear Charger 2s-4s SMBUS controllers 1s-7s w/ integrated FET Stand alone linear chargers (<1A) Switch-mode Charger High efficiency switch-mode solutions (>1A) Faster and cooler (MaxChargeTM) TI BMS solution makes your battery higher efficiency and safer

9 Features & Integration Industrial Monitoring New bq76200 bq S Monitor Analog output: cell V, pack I 5mV cell voltage accuracy Cell balancing drivers SCD fault detect 3.3V LDO I2C 20p TSSOP 4.4x6.5x1.2 24p VQFN 4x4x0.9 bq76940 bq76930 bq V High Side Dual NCH FET Driver Companion device See Peripheral Devices bq76940 Monitor Family for 18V - 48V 3 Versions: 5S, 10S, 15S Int. ADCs for cell voltage, thermistor temp, pack current Integrated OV, UV, OCD, SCD Cell balancing drivers Low side NCH drive 2.5 / 3.3V LDO I2C with CRC Ship mode ICC 0.6µA Optionally pairs with bq78350-r1 CEDV Fuel Gauge 20p TSSOP 4.4x6.5x1.2 30p TSSOP 4.4x7.8x1.2 44p TSSOP 4.4x11.3x1.2 Time

10 Advanced Protection Features & Integration bq77905 bq s Primary Protection OVP, UVP, OCD, OCC, SCD Low-side DSG/CHG FET drive OCD sensing across FETs ±10mV (typ) 0V charging Low Power < 3uA 6p WSON 1.5x1.5x s Advanced Protection Incredibly low power (7µA) Open-wire detection (OW) Overvoltage, Undervoltage (OV, UV) 2-level over-current in discharge (OCD) Short-circuit in discharge (SCD) Low-side DSG/CHG FET drive 20p TSSOP 4.4x6.5x1.2 Time

11 Features & Performance Multi-Cell Switch-Mode Charger Portfolio Production Sampling bq24170/1/2 4A ifet, V, 1-3 Cell Standalone 3.5x5.5mm QFN-24 bq A Version 2.5A ifet, V, 1-3 Cell Standalone 3.5x5.5mm QFN-24 bq V, 33V Max, 1-7Cell LiFePO4 300kHz; >10A DPM, Power Path 4x4mm QFN-24 bq24610/6/7/8 5-28V, 33V Max, 1-6Cells 600kHz; >10A DPM, Power Path (bq24616: JEITA) (bq24617: 5-22V, 1-5Cells) (bq24618: V INMIN 4.75V) 4x4mm QFN-24 bq24640 Super Capacitor 600kHz; 0.5A-10A 3.5x3.5mm QFN-16 bq24650 Solar Charger MPPT 600kHz; 0.2A-10A 3.5x3.5mm QFN-16 bq24780s V, 30V Max, 1-4 Cells Turbo Boost PMON and PROCHOT N-FETs Selector 4.0x4.0mm QFN-28 bq V, 30V Max, 1-4 Cells Turbo Boost DPM, 750kHz N-FETs Selector 3.5x3.5mm QFN-20 bq25700/ V, 1-4 Cells Buckboost for USB Type-C / USB PD OTG 5-20V, Current limit PMON and PROCHOT 4.0x4.0mm QFN-32 bq24770/ V, 30V Max, 1-4 Cells NVDC-1 PMON and PROCHOT N-FET Power Path 4.0x4.0mm QFN-28 bq2410x/12x bq24600 bq2000/02/13 bq24725a bq A ifet, V, 1-3 Cells 1.1MHz, Standalone 3.5x4.5mm QFN V, 33V Max, 1-6Cells 1.2MHz; >10A DPM, No Power Path 3.5x3.5mm QFN-16 NiMH/NiCd charger Lead Acid Charger DIP-8 or SOIC V, 30V Max, 1-4 Cells DPM, 750kHz N-FETs Selector 3.5x3.5mm QFN V, 2-3 Cells NVDC-1, 600k/800k/1Mhz N-FET Power Path 3.5x3.5mm QFN S w/ FETS Standalone 1-7S Controller SMBUS/I2C 1-4S Controller

12 Key Charger Parameters to Consider Inputs: Min/Max Voltage Current Charging Voltage Current System: Min Voltage Current Battery Chemistry Configuration (?S?P) Capacity Control Interface Standalone I2C SMBus Temperature Profile Standard Cold/Hot JEITA Packaging: CSP or QFN Safety and Protection OVP (Input, BAT and OTG) OCP/UCP Thermal Regulation

13 Multi-cell Switch-mode Battery Charger Specifications bq2461x TI Benefit Input Voltage Range 5V-28V, 33V Max TI: is more robust against voltage spikes and functions under a wider voltage range Charge Voltage 2.1V to 26V - Charge Voltage Accuracy 0.5% TI- more accurate Number of Cells it can Charge Maximum Charge Current 10A TI- Can charge faster Charge Current Accuracy 3% - Maximum Duty Cycle 99.5% TI: Can have higher duty cycle Recharge Threshold (V/cell) 50mV - Timer Yes - Enable Pin or SHDN Yes - Charge Status Yes - 1,2,3,4,5, or 6 TI- Can support more series cells OVP Yes TI: has over voltage protection Iin DPM Yes TI: prevents an adaptor with known current capability from hitting the brown-out condition (ex: USB or OEM adaptor) Control Interface Stand Alone - Switching Frequency 600KHz TI: can switch faster Package VQFN- 4x4: 16mm^2 TI: smaller package size

14 TI Motor Driver Solution for Vacuum Cleaning Robot 14

15 Broad portfolio of Industrial & PE Motor Drivers Brushed-DC Stepper Brushless-DC Solenoid Supply voltage support: Supply voltage support: Supply voltage support: Supply voltage support: Low voltage, 12, 24, 36, 48 V Low voltage, 12, 24, 36, 48 V Low voltage, 12, 24, 36, 48 V Low voltage, 12, 24, 36, 48 V Technologies: Technologies: Technologies: Technologies: Integrated Current Sensing, Integrated Current Sensing, Smart Gate Drive Daisy-chain Interface Smart Gate Drive AutoTune, & Smart Gate Drive 1x PWM Open load detection Differentiation: Differentiation: Differentiation: Differentiation: Small footprint & high efficiency Indexers & precision microsteps Sensorless & sensored support Multi-channel drivers Inrush current protection Advanced Current Control Integrated shunt amplifiers Serial or parallel interface Faster time to market Passive component integration Integrated power management Protection & Diagnostics Hero devices: Hero devices: Hero devices: Hero devices: DRV8837 DRV8833 DRV8301 DRV8839 DRV8870/1 DRV8885 DRV8305 DRV8860 DRV8701 DRV8880 DRV8313 DRV8844

16 Motors on ti.com End Equipment

17 Motor Power Broad portfolio of Brushless-DC Drivers Production Development Status New Brushed-DC Stepper Brushless-DC Solenoid Integrated FETs Gate Driver (External FETs) DRV8350R/3R 8 to 100V, Smart Gate Drive, 3x CSA, buck DRV8312/32 12 to 6.5 or 13A DRV to 2.5A DRV8301/2 6 to 60V, 2x CSA, buck DRV8320R/3R 6 to 60V, Smart Gate Drive, 3x CSA, buck DRV to 60V, 2x CSA DRV to 45V, Smart Gate Drive, 3x CSA, LDO DRV to dual 1.8A DRV to 32V sensored trap DRV to 32V sensored sine

18 Motor Power Broad portfolio of Brushed-DC Drivers Production Development Status New Brushed-DC Stepper Brushless-DC Solenoid Single Channel (1x BDC) Multi Channel DRV to 9.5 A, integrated current sense DRV to 47V, Smart Gate Drive DRV8412/32 12 to dual 6 or 12A DRV to 52V, Smart Gate Drive, dual channel DRV8828/40/ to 3.0 or 5.0A, regulation DRV to dual 2.5A DRV8800/01/16 8 to 2.8A, current shunt amplifier DRV8870/71/ to 2.6A, integrated current sense DRV8802/12/13/14/41/ to dual 1.6 or 2.5 A, regulation DRV to dual 2.5A, regulation, AutoTune DRV8837/37C/38/ to 1 A or 1.8A DRV to dual 2A, regulation DRV to quad 1.5A DRV8830/ to 1A, voltage regulation DRV to 8A, 100 ma LDO DRV8835/ to 11V or 7 dual 1.5A DRV8833/33C 2.7 to dual 2 or 1 A, regulation

19 DRV8870/1/2 3.6A Brushed DC Driver with Integrated FETs for 12V and 24V Motors Features Single H-Bridge motor driver Supply voltage: 6.5 to 45 V Output current: 2.0A continuous / 3.5A peak R DS(ON) : 565mΩ HS + LS (at 24 V, 25 C) Small 8 pin HSOIC package Simple PWM interface with brake mode support Slow and mixed decay modes with fixed off-time current regulation Integrated protection features including UVLO, thermal, shootthrough and over-current (with automatic retry) protection Internal current sensing (DRV8871 only) and fault detect (DRV8872 only) support Applications Printers Bidirectional brushed DC motor Vacuum Cleaner 4.9 x 6.0mm, 8-pin HSOIC package Benefits Wide supply range supports 12V and 24V industry standard supplies and high peak supports large startup and stall current Reduced component count and reduced system cost Scalable family of low pin count and small package size drivers Easy to drive and stop with a single-pin control interface Higher system reliability and reduced design complexity with integrated current regulation (DRV8870 and DRV8871) and fault detect (DRV8872) features Controller PWM Fault (opt) Current sense (opt) 6.5V to 45V DRV887x 40W Motor Driver 3.5A M

20 18-V/400-W, 98% Efficient, Compact Brushless DC Motor Drive With Stall Current Limit Reference Design TI Designs Number: TIDA Solution Features Operates at Voltage Ranging from 5-V to 21-V (5s Li-ion Battery) 18-ARMS Continuous (60A Peak for 1s) Winding Current Without Heat Sink or Airflow Small PCB Form Factor of 45mm x 50mm Inverter Drive Efficiency >98% Cycle by-cycle Overcurrent Protection with <1us Response Time and Short Circuit Latch Protection by V DS Sensing Shoot-through, Under Voltage, Over Temperature & Blocked Rotor Protection Operating ambient: -20 to C Tools & Resources TIDA Tools Folder User Guide Design Files: Schematics, BOM, Gerbers, Software, and more Device Datasheets: CSD18502Q5B DRV8305 MSP430G2553 SN74LVC126A TPD1E10B06 LMT87 Solution Benefits Small form factor enables flexible mounting and minimize impedance on connections with high current Low R DS_ON MOSFETs brings high efficiency and eliminates heat sink Optimum inverter efficiency and EMI performance using slew rate control of gate driver Three Phase Gate Driver with Internal Charge Pump Ensures Maximum Inverter Efficiency Even at 5V DC Low Component count and low BOM cost

21 More TI Reference Design on TI.com Products Why We Win DRV8848 Best supply capability, high current capability, flexibility for BDC or Stepper TIDA DRV8860 Integrated serial interface, 8 channel driver saves MCU GPIOs TIDA DRV8860 Integrated serial interface, 8 channel driver saves MCU GPIOs TIDA DRV8801/16 High current capability, low solution cost w/ device integration, 2 channels TIDA DRV8307/2x Smart Gate Drive integrates passive components TIDA DRV8701 DRV8307/2x Smart Gate Drive integrates passive components TIDA TIDA DRV8880 AutoTune automatically tunes the motor TIDA DRV8307 Smart Gate Drive integrates passive components TIDA More on TI.com

22 TI TOF Technology for Vacuum Cleaning Robot 22

23 Theory of operation Q 3 Q arctan 4 Q1 Q2 d c 2 f 2 Distance measured by emitting a modulated light and measuring phase delay of returned light

24 Typical Applications

25 3D Technologies - Overview Stereoscopic Structured Time Of Flight Two or more cameras at different angle retrieve RGB images Image processing SW identifies common feature, triangulates and finds depth IR source projects patterns on object. IR sensor records the deformation of pattern Image is processed in software to calculate depth Modulated light is sent out and the phase difference between Transmit & Received signal is measured Phase delay is used to calculate the depth Stereoscopic vision Fixed pattern Structured light Programmable Pattern (DLP) Time of Flight Depth accuracy low medium (mm to cm) high (um to mm) medium mm to cm Scanning Speed medium Slow Slow/medium fast Distance Range Mid range Very short to mid range Very short to mid range short to long range HW cost low middle middle/high middle SW complexity High (correspondence prob) low/middle middle/high low Low Light Performance weak good good good Outdoor Performance good weak/fair weak/fair good

26 Machine Vision in Service & Cleaning Robots AC chord Shoe laces Key Care-About Clean around pets, cable cords and furniture Vacuum more efficiently Self docking and recharging Easy to program and interact Operate in dark Why 3D-TOF 320 x fps sufficient to see chair legs and small wires 320x240 with good depth resolution sufficient for room mapping and to execute planned path. Lower cost 80x60 model also available High pixel count and depth enable automatic alignment for docking and self-recharge 3D-TOF enable segmenting of human (foreground) from background using depth, and then recognize hand and body gesture from the foreground image Active IR illumination allows operation in both daylight and in dark

27 3D ToF Solutions Solutions Development Kits SDK Viewer, Demos & Reference Designs OPT8241 CDK Voxel SDK VoxelViewer OPT8320 CDK

28 Technical Documents Data Sheets OPT8241 OPT9221 OPT8320 White Papers Time-of-Flight Camera an Introduction Time-of-Flight Camera Calibration Filtering for 3D Time-of-Flight Sensors System Design Guide CDK Quick Start Guide CDK User Guide VoxelViewer User Guide Getting Started with 3D Time-of-Flight Sensor Video Series For free! As long as you have myti registration!

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