Presentation on theme: "Hall and AMR Technology"— Presentation transcript:
1 Hall and AMR Technology Aug, 2012Hall and AMR Technology
2 AgendaBasic theoryProduct PortfolioSuccess storyQ&ABack up
3 - Theory of Operation + S N I I S Hall-Effect Sensing Mechanism Magnetoresistive (MR) Sensing MechanismIV=0SN+-Current source is appliedthrough a thin sheet ofsemiconductor materialA magnetic field applied parallel to the element changes its resistance and creates a currentchangeISNV=Vhall2SSSNMagnet2SSA magnetic field appliedperpendicular to the element creates a voltage change = VhallNSMR is omnipolar - Either Pole will operate the SensorHall is generally bipolar - The output is pole-dependent, butit can be designed to be omnipolar (pole independent, e.g. next gen Hall SS351AT/SS451A)
6 Magnetic Sensing Types DIGITALBipolarTypically requires 2 poles: One pole to turn ON, and opposite pole to turn OFFOperate point to turn ON is typically +Gauss (South), release is -Gauss (North)Although not typical, operate and release points may both be + (South) orboth – (North) Note: latching is not guaranteedBipolar LatchingTrue latching device, always requires 2 poles: 1 to turn ON, opposite to turn OFFGuaranteed to turn ON with +Gauss (South) only, OFF with –Gauss (North) onlyUnipolarOnly one pole required to operate and release the sensorTurns ON with +Gauss (South) for all products, except SS3xx that turns ON with North poleWill turn OFF when magnetic field is removedOmnipolarOperates with any pole (North or South)e.g. magnetoresistive sensors, or omnipolar Hall sensorsANALOGLinearAnalog output proportional to magnetic field strength, operates with North or South.Offset (Output at Zero Gauss) = Typically ½ of Supply voltage+Gauss (South) will increase Vout, -Gauss (North( will decrease Vout
7 Magnetic Sensing Types Bipolar: Typical graph is Sensor 2, butcould also be Sensor 1 or 3Latching: Typical Graph is only Sensor 2Unipolar: Typical graph is Sensor 3, but itcould be Sensor 1 in some casesOmnipolar: Typical Graph is Sensor 1 andSensor 3Digital**Max OP – Gauss level which can guarantee to switch on the sensor;Min RP- Gauss level which can guarantee to switch off the sensor;Differential- OP-RPAnalog
8 Bipolar vs Bi-CMOS Fab Process Bipolar (Analog)• Used on legacy Hall designs• Improved matching (reduced offset)• Robust/rugged• Well-established Hall element design techniques• Digital circuits are possible with bipolar, but they are large and costlyCMOS (Digital)• High impedance (low current draw)• Complex circuitry in small area• More precise analog switches• Analog circuits are possible with CMOS, but performance is inferior to bipolar• Competitors using CMOS fab process include Melexis, Micronas, and DiodesBi-CMOS (Mixed Signal)•Allows the designer to choose the best from both technologies to combine high performing analog components with compact, low cost, low current digital circuitry• Competitors using Bi-CMOS include Allegro and Infineon
14 1st Level Hall & MR Sensors 2SS52M Digital Magnetoresistive Sensor SS552MT SMT versionSS400 Series Digital Hall & VF401 20Wire MRSS400R/SS400P Series Digital Hall (New)SS490 Series Miniature Ratiometric Linear HallOmnipolar magnetics-40 to +150°C temp range3.8 to 30 VDC operationHigh sensitivity (15 G operate) allows up to 1” sensing distanceFlat TO-92 type packageLow-cost: R and P series-40 to +150°C temp rangeSinking output w/ bipolar or unipolar magnetics (Digital)Sink/Source output (linear)Hi & lo sensitivities availableMarketsApplicationsAPS00B MR ±90° Hi-res AngularDisplacement SensorMotion ControlInstrumentationHVACInfoTechMedicalVar Speed Drive, RPMBDCM, Piston detectionFlux, current, flow meterValve/damper positionTape drive head positionDrug dispensing controlAnalog responseHigh resolution angular or rotary position sensingSS300 Series Digital Hall (New)SS94 Series High-performance Ceramic Linear HallSOT-23 subminiature surface-mount packageLow voltage 3 V operationReverse polarity protectionLow costLaser-trimmed resistors provide accurate specs and compensate temp variationsSinking or sourcing output-40 to +125°C temp range±100 to ±2500 G flux rangesSensing element in CSLA2 open-loop current sensorsSS500 Series Digital Hall & VF526DT Speed & Dir SS59ET low-cost Linear HallSOT-89 type surface-mount package-40 to +150°C temp range (digital)3.8 to 30 VDC operation (digital)Same features as SS400-Series (digital)Low-cost, good performance (linear)
16 2nd Level Value-Added Hall & MR Assemblies SR16 / SR17 Low-Cost Hall Vanes4AV Series Hall VaneCompact, robust package, mechanically interchangeable w/Honeywell opto sensorsOperated by low-cost, easy to fabricate ferrous vane for accurate pulse countingPackaged magnet & sensor protected from dust or dirtOperated by low-cost, easy to fabricate ferrous vaneTightly controlled magnetics provides accurate pulse widthLead wire, PC-board, and 4-pin connector termination options40 to +125°C temp rangeMarketsApplicationsSinking output w/medium level magnetics for stray field immunityIndustrialSurface TransportationCommercial/MedicalWheel rotation/RPMPedal MovementThrottle PositionLever PositionSuspensionGear shift positionRPM in fitness equipment-20 to +85°C temp rangeNon-contact sensing protected from dust & dirt1GT Series High-performance Hall Gear-Tooth sensorVX10 / VX80 Solid State SwitchBack-biased Hall senses ferrous metal targets10 to 3600 RPM, output independent of RPM-40 to +150°C temp range, +160°C short termEMI resistant - Will operate in noisy environmentBuilt-in reverse polarity and transient protectionPlunger operated, non-contact digital output w/ direct interfacing to solid state circuitsLow force operationRugged construction, reverse voltage protection, tested to >100 M operationsWide variety of std levers & actuators availableUL recognized, CSA certifiedRely on Honeywell’s quality and experience
17 Value-Added Hall & MR Assemblies 103SR Series Hall (Prox-Type)SR3 & SR4 Series Digital Hall (Prox-Type)Metal bushing - Rugged, sealed, threaded, aluminum housingMeets NEMA 1, 3, 3R, 3S, 4, 12 and 13Digital sink or analog output.Unipolar, bipolar or linear magnetics, various sensitivities-40 to 100°C temp range,(up to -40° to 125° for some products)Cable / connector optionsPlastic housing w/color coded wiresMeets NEMA 1, 3, 3R, 3S, 4, 4X,12 and 13Sinking output w/ bipolar, unipolar (SR3) or omnipolar (SR4) magneticsMarketsApplications-40 to +85°C temp rangeCable / connector optionsMaterial HandlingPackaging MachineryIndustrialSurface TransportationCommercial/MedicalWheel rotationConveyor controlMotion encodingGear shift positionRPM in fitness equip.UPSWelding EquipSR13/SR15 Series Low-cost Hall ProbesQuick-mount plastic housingUnipolar or bipolar magnetics, various sensitivities-40 to +85°C temp rangeCable / connector optionsInexpensive position sensing alternative.
18 Honeywell Magnetic Position Sensors Summary – Honeywell differentiatorsValue-added and custom magnetic sensor capability (2nd level assemblies, packaging, cables and connectors, etc.)Availability of low-cost products w/ Honeywell quality & performance (new 1st level platform, introduced in )Alternative magnetic sensing technologies (Magneto Resistive)Broad linear Hall portfolio (from low-cost SS49E to hi-perf SS94)Advanced products (APS00B, VF401, VF526DT)
19 Next Gen Hall Key Features & Benefits New featuresLow supply voltage (most: 3Vdc, some as low as 2.7Vdc)SOT-23 subminiature SMT PackageReverse voltage protection (all except sensors w/built-in pull-up resistor)Omnipolar HallUnipolar and bipolar sensors with built-in pull-up resistorsBenefitsLow voltage capability helps reduce power consumptionSubminiature package supplied on tape and reel allows for a compact design with automated component placement, helping to reduce manufacturing costsBuilt-in reverse polarity protection protects device from potential damage during installationOmnipolar magnetics eliminates the need to know magnet polarity, potentially saving on magnet and assembly costSensors with built-in pull-up resistors save eliminate the need to provide an external resistor, saving on component cost and PC board real estate.
20 Honeywell Next Generation Hall Selection Guide Rated Magnetic Specs are over full Operating and Voltage Ranges - 25°CDigital MagneticsAnalog (Linear) MagneticsOperate Point (Gauss)Release Point (Gauss)Differential (Gauss)Supply Voltage (Vdc)Sensitivity (mV/Gauss)Null Offset (V)Range (Gauss)Average Current (mA)Operating Temp (°C)Description / Magnetic TypeSOT-23 P/NFlat TO-92 P/NIC TechnologyMinTypMaxNom25°C@ Vs (Vdc)Reverse PolarityBipolarSS30AT55170-170-55504.5244.4-40125YesUltra Low Cost Bipolar with Built-In Pull-Up ResistorSS311PTSS411P-3060140-140-8030402.775.55150NoHigh Sensitivity Low Cost LatchingSS361CTSS461C80-50-510016048595-95190Low Cost LatchingSS361RTSS461R120-12033.5Ultra High Sensitivity Bipolar LatchingSS360STSS460SBiCMOS3.024.0SS360NTHigh Sensitivity Unipolar (Low Gauss)SS341RTSS441R357513510Medium Sensitivity Unipolar (Medium Gauss)SS343RTSS443R45205180Low Sensitivity Unipolar (High Gauss)SS349RTSS449R240305460225370Ultra Low Cost Unipolar with Built-in Pull-Up ResistorSS345PTSS445P28025105Omnipolar Hall - Regular PowerSS351ATSS451A±35±85±135±10±40±120Low-Power Omnipolar - High Duty CycleSL353HTBiCMOS Not Chopper Stabilized±20±60±110±5±45±95152.20.332.8Low-Power Omnipolar - Low Duty CycleSL353LT0.0018Low cost LinearSS39ET5.06.51.01.41.752.252.502.75±10006
21 SL353 Micropower Hall-Effect Sensor ICs – Features/Benefits Energy efficientSupply voltage as low as 2.2 Vdc, combined with very low average current (1.8 µA typ. for SL353LT), reduces power consumption, provides extended battery life, and promotes energy efficiencyVersatileOmnipolar capability with high and low duty cycle options allows for use in many potential applications with low power requirements and/or battery operation, including motion control, lid closure detection, presence-absence, metering, and displacement sensingNon-chopper stabilized designDoes not use chopper stabilization, eliminating noise generated by products using this techniqueNo unnecessary filters are needed to compensate for the noise, which minimizes board space, parts counts and costsStableThermally balanced integrated circuit provides for stable operation over a wide temperature range, from -40° to 85 °C [-40° to 185 °F]Subminiature sizeSOT-23 subminiature package size requires less PCB space, allowing for use in smaller assemblies
22 SL353 Micropower Hall-Effect Sensor ICs – Features/Benefits Price competitiveBy using BiCMOS technology, Honeywell has been able to design a reduced size integrated circuit, saving on manufacturing costs while still meeting customer requirements; these savings can result in lower costs to customersHelps reduce total system costBecause these sensors can be operated by a North or a South pole, they do not require the magnet polarity to be identified, thus making installation easier and potentially reducing system costReduces manufacturing costsSupplied on tape and reel, often allowing for automated, lower-cost pick and place assembly which can help the customer reduce manufacturing costsSimplifies interfacingPush-pull output allows for easy interfacing with common electrical circuits without the need for a pull-up resistorCompliantRoHS-compliant materials meet Directive 2002/95/EC
23 SL353 Micropower Hall-Effect Sensor ICs – Competition Key competitors include Allegro’s A3211ELH and A3212ELH sensors, and Diodes’ AH180N-W sensorHoneywell’s key competitive advantages include:Honeywell’s slightly lower minimum supply voltage capability improves flexibility of use within the application and can help reduce power consumptionHoneywell’s lower active mode time, lower sleep mode current, and average current help to reduce power consumption and extend battery lifeDoes not need external capacitor to filter out chopper noise, potentially saving PC board space and costPush-pull output does not require external pull-up resistor, potentially saving PC board space and cost
26 Magnetic Sensors Market & Applications Hall/MR TypeMajor ApplicationsDigital / BipolarBrushless DC MotorsAxial fansE BikesHVAC (Air Conditioners)Digital / LatchAutomotive – Window lift motorsIndustrial motorsAppliance motorsDigital / UnipolarAppliance – Lid detectionDoor positionDigital / OmnipolarFlow control – water softnersSpeed sensing for fitness equipmentProximity sensingCylinder position sensingAnalog / LinearThrottle controls – E BikesCurrent sensingLiquid level sensingLinear displacementElectronic power steeringRotary/angular position sensing
27 Potential Markets and Applications for New Platform Potential ApplicationsCustomer NeedsProductsMedication bin and drawer monitor on portable drug carts, anemometer, electronic balance sensor, door latch on medical carts, fluid level float location; motor assemblies for medical equipmentMaterial handling, automation, machine control, variable speed drivesSpeed detection of blower motors, brushless DC motors, pressure transducer bellows, damper / valve positioning (variable air volume)Valves, flow meters for utilities/petro-chem, chemical, oil/gas, food/bevSteering angle position, window lift control, rotary position sensing, vehicle motor control, speed/RPM sensing, position controlMotor control, flow control, RPM sensing in fitness equipment, door lock sensing in appliances, lid closure detection in laptop computers and office equipmentHospital HardwareAccurate position monitoringAccess controlLow audible noiseValueStability over temperatureSmall footprintAccurate flow monitoringEnhanced reliability, reduced repair costsEasy integrationEnhanced energy efficiencyEnhanced durability, reduced maintenanceEnhanced reliability, reduced repair costsCompact sizeAccurate position or RPM monitoringLow power consumptionSmall sizeLower costSS361RT/SS461RSS311PT/SS411PSS30AT/SS40ASS343RT/SS443RSS345PT/SS445PSS341RT/SS441RSS349RT/SS449RSS351AT/SS451ASS30ATMedicalHVACIndustrialFlow ControlMotion ControlHeavy duty vehicles, Agriculture, ConstructionTransAppliances, Electric Bicycles & Scooters, ComputersOther
28 Motion Control – Magnetoresistive Position Sensors Industry LeadersDelco (AD) - USASICK - GermanyBalluff - GermanyZhangJi - ChinaGimatic – ItalyFritsch - GermanyEmbedded Control ProductsDigital Magneto Resistive Sensors 2SS52M, SS552MTAnalog Magneto Resistive sensors – APS00B
31 BLDC clockwise Hall IC： Detect direction and speed based on three hall IC outputH3 H2 H1NSMagnet(4-Pole Shown)clockwiseHall IC：Symmetry of high and low level outputConsistence of operate and release pointGood Electric strengthH1StandardH2Behind H1Behind H2H3
32 Motion Control – Brushless DC Motors Controller+VDriverCircuitLogicCommand SignalWindingsHall EffectBipolar SensorsInputPowerAC or DCLogic PowerPower SupplyIndustry LeadersComair Rotron - USAEBM - GermanyPacific Scientific - USATianma - ChinaServo Magnetics - USAEmbedded Control ProductsHall Sensors – SS4 series, SS5 series, SS421 SeriesSpeed & Direction Dual Hall Sensors – VF526DTCustomised value added multiple sensor systemsMajor ApplicationsMotor Controls for:HVAC FansComputer Cooling FansComputer Disc DrivesMetering PumpsAudio & Video Equipment
34 Application, Performance, Customer Relationship Success StoryProductSS343RT (Next Gen Hall)IndustryIndustrialApplicationSewing Machine’s NeedleHow we wonWorking with Design Engineer w/ full tech supportRight product- performance/priceGood customer relationship while compete w/ MELEXIS (US5881)ValueUS$50~60K/year* 2~3yrsProductSS311PTApplicationBLDC for toy (aircraft, car etc)How we wonGood Price/performance, SOT-23 package with pull-up resisterearly design in supportApplication, Performance, Customer Relationship
35 Success Story HON Ref: Hall Sensor SS443R Application: handspike (The hall is used to stop the treadmill when someone pulls a magnet. The application is to protect the old man in the running process)Competition: AKE, and AP local hall competitorsWhy won: Technical supportLife size: $0.28 MSOP: Q3, 2011
36 Success Story: Next Gen Hall Sensors for Infusion Pumps ProductSS49 , SS495A1IndustryMedical/Infusion PumpsApplicationOne SS49 is used to determine the presence/absense of the cartridgeOne SS495A1 is used to determine the amount of fluid delivered from the pump motor.How we wonthe sensor performed better in the application than the current Allegro partRight product- Omnipolar sensor , do not need to identify the poles of the magnetGood customer relationshipValueUS $125,000 over 5 yearsInternal Use Only. Not for distribution outside your organization.
37 Success Story Potential rev 200KUSD Tubular Motor Product SS30AT (Next Gen Hall)IndustryIndustrialPotential rev 200KUSDApplicationTubular MotorWhat I doWorking with Design Engineer w/ full tech supportRight product- performance/price
38 Success Story HON Ref: Hall Sensor SS413A Application: E-bike motor (Tricycle)Competition: AP local hall competitors (AH product and SX products)Why won: Quality, Honeywell reputationLife size: $0.66 MSOP: Q3, 2011
39 Application, Performance, Customer Relationship Success StoryProductSS541GTIndustryTransportationApplicationShifter positionHow we wonProduct performance (e.g. sensitivity)Working with Design Engineer w/ full tech supportRight product- performance/priceGood customer relationship while compete w/ AllegroValueUS$60~ 70K/year* 3yrsApplication, Performance, Customer Relationship
40 Success Story Product SS59ET (Linear Hall) Industry Industrial Potential rev 140KUSDApplicationDrain pump for washing machineWhat I doNew applicationWorking with Design Engineer w/ full tech supportRight product- performance/price
41 Success Story Product SS466A (Bipolar Latch Hall) Industry Appliances Potential rev 450KUSDApplicationRunning machineCompetitorAllegro: A3281What I doWorking with Design Engineer w/ full tech supportDesign and manufacture test equipment for the customerRight product- performance/price
42 Success Story Product SS59ET (Linear Hall) (12pcs per set) Industry AppliancesPotential rev 100KUSDApplicationMoney CounterWhat I doNew market and applicationWorking with Design Engineer w/ full tech supportDesign and choose right magnet for the customerRight product- performance/price
43 Success Story HON Ref: Next Gen Hall SS466A Application: Brushless DC Motor for fanDetect the position of the rotor to control and switch the power supplyCompetition: AllegroWhy won: lead time and phase out of the Allegro’s productLife size: $ 3.12 MSOP: 4Q 2011
44 Project of design in-won Product:SS526GTAmount rev: 100KUSDApplication:Tubular motorWhat I do:Working with Design Engineer w/ fullytech support.Provide right product to customer.Product:SS543ATAmount rev: 116KUSDApplication:Cash registerWhat I do:Working with Design Engineer w/ fullytech support.Provide right product to customer.Product:SS413AAmount rev: 158.4KUSDApplication:Speed sensorWhat I do:Working with Design Engineer w/ fullytech support.Provide right product to customer.Product:SS41Amount rev: 100KUSDApplication:Micro motorWhat I do:Working with Design Engineer w/ fullytech support.Provide right product to customer.
45 Project of design in-won Product:SS443R (2pcs per set)Amount rev: 280KUSDApplication:Massage machineWhat I do:Working with Design Engineer w/ fullytech support.Provide right product to customer.Product:SS495A1Amount rev: 480KUSDApplication: ATMWhat I do:Working with Design Engineer w/ fullytech support.Provide design of magnetic field for customer.Provide right product to customer.Product:SS40AFAmount rev: 921.6KUSDApplication:PG motorWhat I do:Product training for the customer.Provide right product to customer.Product:SS49FAmount rev: 180KUSDApplication:Handle barWhat I do:Provide right product to customer.
46 Potential Application ProductSS361RTIndustryTransportationApplicationShifter positionHow we wonProduct performance (e.g. sensitivity)Working with Design Engineer w/ full tech supportRight product- performance/priceGood customer relationship while compete w/ AllegroValueUS$30~ 50K/year* 3yrsTypical customerECS (2~3pcs per set)*Source- sea/pac sales team
47 Potential Application Mouse wheel controller2pcs unipolar hall sensor at each sideIntelligent mouse examplePlus another 2pcs linear hallintelligent mouse-HallHongshiIndustrialintelligent mouseSS495A$ 0.55 $ 1,056,0002011/12/31$ 264,000.00