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PSoC 3 and PSoC 5LP For Temperature Sensing

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Presentation on theme: "PSoC 3 and PSoC 5LP For Temperature Sensing"— Presentation transcript:

1 PSoC 3 and PSoC 5LP For Temperature Sensing
Reduce Your Manufacturing Cost and Time-to-Market Presentation: To provide an engineering overview to customers for a Cypress solution. Title slide: To define what the presentation will cover. The subtitle is a one-sentence statement of the key opportunity. Rev *H

2 Re-engineering Temperature Sensing
Every sensor requires a special analog IC, which adds cost Companies are re-engineering older products to reduce cost Replacing older analog ICs as they become obsolete Consolidating platforms to reduce PCB variants Designing new products in smaller enclosures This is a great opportunity to reduce your BOM, manufacturing cost, and time-to-market for your product portfolio Temperature Sensors, each with its special analog IC RTD Thermocouple ADI REF192 $2.01 TI LMP90078 $2.45 ADI AD7792 $4.04 Thermistor Diode TI TMP431 $0.55 Maxim MAX6682 $1.82 Microchip Microcontroller $2.94 Temperature Controllers: End-product variants require multiple PCBs Market Vision: To define the market opportunity. Presents compelling data and end product photos relevant to the local market. Should use compelling photographs of actual PSoC products. 3

3 Terms You Will Hear Today
Temperature Sensors − convert temperature to an analog signal Thermocouple (e.g., type K, J, T): generates ~40 µV/ oC, requires ADC and a reference Temperature Sensor RTD (Resistance Temperature Detector): changes ~0.387 Ω/ °C, requires current source and ADC Thermistor: changes ~400 Ω/ °C at room temperature, requires voltage source and ADC Temperature diode: ~250 µV/ oC, requires current source and ADC Current/Voltage Sources for Sensors ICs that generate precise voltage or current supplies for sensors IDAC (Current Output Digital to Analog Converter) IC that generates programmable current sources for sensors ADC (Analog to Digital Converter) IC that converts analog sensor signals, such as Temperature Sensor outputs, to digital for a microcontroller AFE (Analog Front End) IC that integrates ADC and either a current or voltage source Terms of Art (ToAs): To clearly define tor engineers all ToAs used in the presentation. To carefully and fully define Cypress-proprietary ToAs needed to explain our system solution. 4a

4 PSoC Terms PSoC® Creator™ Components Component Configuration Tools
100+ other Components to complete the system design PSoC® Creator™ PSoC 3 and PSoC 5LP Integrated Design Environment (IDE) Software that installs on your PC Allows concurrent hardware/firmware design of PSoC systems Components Free “Virtual ICs” represented by an icon in PSoC Creator software Used to integrate multiple ICs and system interfaces into one PSoC Dragged and dropped as icons to design systems in PSoC Creator Inherently connected to MCU via the main system bus Sensor Components automatically convert ADC output to temperature with sophisticated algorithms and excellent accuracy Component Configuration Tools Simple Graphical User Interfaces in PSoC Creator Embedded in each Component Used to customize Component parameters Launched by right-clicking a Component Sensor Components: RTD, Thermistor, and Thermocouple Analog Components integrate analog ICs MCU Inherent system bus connection The colored header on Component icons signifies system bus connection The ADC Component integrates from 8-bits to 20-bits ADC ICs ADC Component Icon Terms of Art (ToAs): To clearly define for engineers all ToAs used in the presentation. To carefully and fully define Cypress-proprietary ToAs needed to explain our system solution. 4b

5 Design Problems Engineers Face
1. Temperature-sensing system requires multiple ICs ($) AFEs for each sensor A microcontroller with firmware algorithms to convert and correct sensor outputs and to communicate the temperature to other devices (e.g., displays) 2. Multiple-sensor interface design is complicated Single-IC obsolescence may cause redesign PCB designs change every time a chip or wire changes Sourcing ICs from multiple vendors complicates and slows development 3. Fitting products into small enclosures is challenging Multiple ICs require larger PCBs PSoC overcomes these three problems PSoC one-chip solution supports multiple Temperature Sensors (simultaneously) PSoC Sensor Components provide algorithms and firmware for accurate sensor conversion PSoC integrates the microcontroller and analog ICs with ADC and IDAC Components PSoC enables fast, easy design modifications without PCB changes PSoC simplifies design by integrating many ICs in a single chip PSoC reduces PCB size and PCB layers, enabling smaller enclosures PSoC is an easy-to-use, low-cost, one-chip temperature-sensing solution Each design has different ICs and PCBs Multiple AFE ICs Traditional Approach and Challenges: To present the traditional approach and the challenges engineers will face when using it to realize the Market Vision. Ends with a one-sentence segue clearly stating the benefit of the Cypress solution. 5

6 PSoC One-Chip Solution
Complex Temperature Sensor designs with many analog ICs… That are prototyped and validated using the PSoC 3 Kit… Are integrated as PSoC Creator Components to create system designs… Thermocouple Connect LED display RTD And programmed into a single PSoC to create multiple end products. Thermistor (internal) Temperature controllers require multiple PCBs PSoC 3 Kit Precision Analog Sensor Kit Actual Temperature Controller design by Cell System To get started, you should: Buy $99 Precision Analog Sensor Kit (CY8CKIT-025) Buy $99 PSoC 3 Kit (CY8CKIT-030) or PSoC 5LP Kit (CY8CKIT-050) Install PSoC Creator software and Precision Analog Sensor Kit on your PC Open and work with multiple temperature-sensing Example Projects Use your sensor specific (e.g., RTD) App Note for complete system design guidelines Cypress Solution: Compelling CY Creator introduction to solve the challenges highlighted on the previous slide. Provides a short, clear list of what to do to get started. 6a

7 System Design in PSoC Creator IDE
Multiple-sensor Example Project in PSoC Creator IDE Explore the library of 100+ Components Drag and drop Component icons to complete your hardware system design in the main design workspace Configure Components using the Component Configuration Tools Access Component datasheets with technical specifications directly from the Component Configuration Tools Codesign your application firmware with the PSoC hardware using the PSoC Creator IDE C compiler Use included sensor specific App Notes for complete system design guidelines Cypress Solution: Compelling CY Creator introduction to solve the challenges highlighted on the previous slide. Provides a short, clear list of what to do to get started. 6b

8 Upgrading RTD Sensing OLD: Traditional RTD Solution with 0.1% accuracy
Discrete ICs NEW: PSoC RTD Solution with 0.1% accuracy ADC output goes to RTD Component ADC with integrated voltage reference and amplifier DAC with current output Traditional RTD solution requires 6 ICs OLD: Typical MCU code needed for RTDs 100+ lines of code NEW: PSoC Creator RTD Component and Configuration Tool RTD Component converts ADC output to accurate temperature with embedded algorithm library Cypress Solution: To introduce CY products and show compellingly how they solve the challenges highlighted on the previous slide. To provide a short, clear list of what to do to get started. 6c

9 PSoC RTD Sensing Solution
Create your RTD solution in minutes Download App Note AN70698 – Temperature Measurement with RTDs Use the provided Example Project as a starting point (includes ADC and IDAC Components) Configure the RTD Component based on your sensor type (PT100, PT500, PT1000) and temperature range Select temperature calculation error budget vs. instruction cycles requirement Design the remainder of your system in PSoC Creator Build your project and prototype your system using the Precision Analog Sensor Kit RTD Component Configuration Tool Select RTD type, temperature range and calculation error budget; view temperature calculation error vs. temperature PSoC RTD Solution for broken-wire reconfiguration Mechanical stress causes one of four wires to break PSoC auto-reconfigures to three-wire mode Cypress Solution: To introduce CY products and show compellingly how they solve the challenges highlighted on the previous slide. To provide a short, clear list of what to do to get started. 6d

10 OLD: Traditional thermocouple solution with 0.1% accuracy
Upgrading Thermocouple Sensing OLD: Traditional thermocouple solution with 0.1% accuracy Discrete ICs ADC output goes to Sensor Components that automatically convert to temperature ADC with integrated voltage reference and amplifier NEW: PSoC thermocouple solution with 0.1% accuracy Traditional thermocouple solution requires 7 ICs NEW: Thermocouple Component and Configuration Tool Thermocouple Component converts ADC output to accurate temperature with ninth-order polynomial 500+ lines of code OLD: Typical MCU code needed for thermocouples Cypress Solution: To introduce CY products and show compellingly how they solve the challenges highlighted on the previous slide. To provide a short, clear list of what to do to get started. 6e

11 PSoC Thermocouple Sensing Solution
Create your Thermocouple Solution in minutes Download App Note AN75511 – Temperature Measurement with Thermocouples Use the provided Example Project as a starting point (includes thermistor circuit for cold junction compensation) Choose thermocouple type (J, K etc.) in Component Configuration Tool Choose temperature calculation error budget vs. instruction cycles requirement for thermocouple Enter thermistor resistance at three temperatures in Thermistor Component Configuration Tool (for cold junction compensation) Select calculation implementation method for thermistor based on instruction cycles vs. accuracy requirements Design the remainder of your system in PSoC Creator Build your project and prototype your system using the Precision Analog Sensor Kit Thermocouple Component Configuration Tool Choose thermocouple type, calculation error budget; view temperature calculation error vs. temperature Thermistor Component Configuration Tool Select implementation method Configure thermistor parameters Cypress Solution: To introduce CY products and show compellingly how they solve the challenges highlighted on the previous slide. To provide a short, clear list of what to do to get started. 6f

12 Example Project with Multiple Sensors
Example Project from the Precision Analog Sensor Kit with five Temperature Sensors Current and voltage source for Temperature Sensors Five Temperature Sensors with only passives external to PSoC Multi-channel differential 20-bit ADC reading all Temperature Sensors Sensor Components automatically convert ADC output to temperature CapSense user interface and LCD display to select sensor to display and to calibrate sensors Watch the demo video: Cypress Solution: To introduce CY products and show compellingly how they solve the challenges highlighted on the previous slide. To provide a short, clear list of what to do to get started. 6g

13 Precision Analog Sensor Kit
Prototype Your Solution Use the Precision Analog Sensor Kit (CY8CKIT-025) Connect to your PSoC 3 Kit (CY8CKIT-030) or PSoC 5LP Kit (CY8CKIT-050) Select from four provided sensors: RTD, thermocouple, thermistor or diodes Or attach your own sensor using on-board connectors Use any other sensor to measure cold-junction temperature for thermocouple Use CapSense touch buttons to implement user interface Validate your custom solution for temperature sensing Watch our demo video: PSoC 3 Kit (CY8CKIT-030) CapSense buttons select sensor to display Precision Analog Sensor Kit (CY8CKIT-025) Thermocouple Input Diode Inputs PSoC 3 Kit connector Thermistor (on board) Thermistor (ext input) RTD (ext input) RTD (on board) Cypress Solution: To introduce CY products and show compellingly how they solve the challenges highlighted on the previous slide. To provide a short, clear list of what to do to get started. 6h

14 PSoC® Solution Example – RTD Temperature Sensing with CAN
PSoC Value Block Diagram Design Challenges Support 10 RTDs, each with four wires Provide auto-reconfiguration for broken wire Offer high reliability to operate remote equipment Reduce PCB size PSoC Solution Supports 10 four-wire RTDs in a single PSoC Detects RTD broken wire and provides auto reconfiguration Increases reliability with lower chip count Integrates 12 ICs into PSoC one-chip solution PSoC One-Chip Solution Integrated Analog Components M U X IDAC 8051 MCU RTD UART ( RS 485 ) CAN 10 M U X ADC RTDs + PGA 8 Suggested Collateral App Notes: RTD, CAN Interface Kits: Precision Analog Sensor Kit (CY8CKIT-025) PSoC 3 Kit (CY8CKIT-030) FLASH SRAM DMA PSoC Creator Components RTD (converts ADC output to temperature) ADC (16-bit Delta Sigma ADC with PGA) IDAC (programmable current source) MUX (Analog Multiplexer) DMA (Direct Memory Access between ADC and CAN module) CAN (communicate with host module) UART (communicate with external modules) Windmills by Vestas With 10-sensor temperature measurement Solution Examples: To give detailed one-page PSoC Solution Examples from the field in the specified format. 7a

15 PSoC® Solution Example – Temperature I/O Module with Custom UART
PSoC Value Block Diagram Design Challenges Eliminate level shifter IC Support customized UART Support multiple Temperature Sensors Achieve higher system reliability PSoC Solution Eliminates level shifter IC with 5-V I/O Enables customized UART eliminating external CPLD Simplifies multiple-sensor design with integrated AFE Improves reliability by reducing chip count PSoC One-Chip Solution Integrated Analog Components IDAC ARM Cortex-M3 MCU Thermocouple RTD RTD VREF Customized UART in PLD M U X ADC PLD UART + PGA Thermocouple Suggested Collateral App Notes: RTD, Thermocouple, Thermistor, Diode Kits: Precision Analog Sensor Kit (CY8CKIT-025) PSoC 5LP Kit (CY8CKIT-050) 8 Voltage input FLASH SRAM DMA PSoC Creator Components Thermocouple (converts ADC output to temperature) RTD (converts ADC output to temperature) ADC (16-bit Delta Sigma ADC with PGA) MUX (Analog Multiplexer) IDAC (programmable current source) UART (customized UART in PLD) Logic Gates (customized UART in PLD) I/O Module by Unimat Converts temperature and voltage inputs to digital data for Programmable Logic Controller used in plant automation Solution Examples: To give detailed one-page PSoC Solution Examples from the field in the specified format. 7b

16 PSoC® Solution Example – Special Purpose Temperature Controller
Design Challenges Provide temperature control with four Peltier modules Support multiple types of Temperature Sensors Achieve higher system reliability and safety PSoC Solution Integrates 18 ICs into one-chip solution for temperature control with four Peltier modules Simplifies multiple-sensor design with integrated AFE Enables hardware current limiting for protection PSoC Value Block Diagram PSoC One-Chip Solution M U X Integrated Analog Components Peltier modules with Temperature Sensors IDAC M U X 2x RTDs VREF 8051 MCU RTD Thermocouple 4x Peltier Element ADC + PGA 2x Thermocouples Output to Peltier Module Op Amp 4x 4 Current Sense App Notes: Diode, Thermocouple, RTD Kits: Precision Analog Sensor Kit (CY8CKIT-025) PSoC 3 Kit (CY8CKIT-030) Suggested Collateral PWM#1 PWM#2 Op Amp 4x CAN 4 Current Sense Comparator 4x 8 UART VREF PWM#2 8 DMA PWM#1 Current Limiting RSENSE Current Sense FLASH Thermocouple (converts ADC output to temperature) RTD (converts ADC output to temperature) ADC (16-bit Delta Sigma ADC with PGA) IDAC (programmable current source) CAN (communication interface) UART (communication interface) PSoC Creator Components PWM PLD H-Bridge 4x Temperature Controller by Cell System Controls four Peltier modules that convert power into heating or cooling Solution Examples: To give detailed one-page PSoC Solution Examples from the field in the specified format. 7c

17 Current sources for RTD sensing
PSoC® Solution Example – Refrigeration Control System PSoC Value Block Diagram Design Challenges Support 22 temperature sensing inputs Enable simultaneous sensing of two or more inputs Support multiple types of Temperature Sensors PSoC Solution Supports 22 inputs with multiple ADCs and current sources Enables simultaneous sensing using multiple ADCs Simplifies multiple-sensor design with integrated AFE PSoC One-Chip Solution Current sources for RTD sensing Integrated Analog Components M U X IDAC M U X SAR ADC ARM Cortex-M3 MCU RTD Thermistor Thermocouple To Other System Modules SPI VREF 32 4 M U X 22 Temperature Inputs SAR ADC App Notes: RTD, Thermocouple, Thermistor Kits: Precision Analog Sensor Kit (CY8CKIT-025) PSoC 5LP Kit (CY8CKIT-050) Suggested Collateral + VREF M U X ∆ ∑ ADC +PGA 32 VREF FLASH Thermocouple (converts ADC output to temperature) RTD (converts ADC output to temperature) Thermistor (converts ADC output to temperature) ADC (12-bit SAR ADC) ADC (16-bit Delta Sigma ADC with PGA) MUX (Analog Multiplexer) SPI (8-Mbps interface to host processor) IDAC (programmable current source) PSoC Creator Components Refrigeration Control Unit Monitors temperature inside shipping containers Solution Examples: To give detailed one-page PSoC Solution Examples from the field in the specified format. 7d

18 (Temperature, 4-20mA Current Loop)
PSoC® Solution Example – I/O Expander for HVAC Control System PSoC Value Block Diagram Design Challenges Support 20 analog input measurements Provide 8 analog outputs and 16 digital outputs Provide option for future memory expansion PSoC Solution Supports 20 analog inputs at 16-bit resolution Supports 8 analog outputs at 8-bit resolution and 16 digital outputs Provides External Memory Interface for future memory expansion PSoC One-Chip Solution Integrated Analog Components M U X Op Amp To thermistor Inputs VREF M U X ARM Cortex-M3 MCU Thermistor VDAC 4 8 Analog Outputs 4x VREF PWM LOW PASS FILTER 20 Analog Inputs (Temperature, 4-20mA Current Loop) 4 4x 4x 16 Digital Outputs ADC + PGA 16 UART Suggested Collateral To External Modules App Note: Thermistor Kits: Precision Analog Sensor Kit (CY8CKIT-025) PSoC 5LP Kit (CY8CKIT-050) 32 FLASH EMIF DMA PSoC Creator Components I/O Expander for HVAC (Heating, Ventilation and Air Conditioning) Control System Used for home automation and temperature control Thermistor (converts ADC output to temperature) ADC (16-bit Delta Sigma ADC with PGA) VDAC (Voltage output Digital to Analog Converter) MUX (Analog Multiplexer) CAN (communication interface with external modules) EMIF (External Memory Interface for future expansion) Solution Examples: To give detailed one-page PSoC Solution Examples from the field in the specified format. 7e

19 PSoC Solution vs. Competition’s
Precision Analog Sensor Kit Connected to PSoC 3 Kit TI / National AFE Expansion Kit and Microcontroller interface board AFE Expansion Kit Microcontroller interface board PSoC 3 Kit Thermocouple Input 3 Diodes 1 2 1 4 Thermistor (on-board or external input) RTD (on-board or external input) Four ICs from three different vendors Single-chip PSoC3 solution reading Thermocouple CapSense buttons select sensor to display Feature Cypress PSoC 3 TI AFE and microcontroller Chips Required for Temperature Controller 1 4 Number of Sensor Inputs 1 to 61 1 to 7 Number of Current/Voltage Sensor Sources Up to 4 sources Up to 2 sources Graphical Design Tool Yes AFE only Complete System Example Projects No Kit Price $198 $248 Competitive Comparison: To define key features of the Cypress solution and demonstrate its superiority over NBA(s). Must be credible and objective to the salesperson and customer. 8

20 PSoC 3 Temperature Sensing Solution Value
Competitor Sensor AFE IC: TI Multi-Channel, Low-Power 16-bit AFE LMP90078 Price: $2.45 BOM Integration Voltage Reference IC: TI LM4132B Price: $0.78 Analog MUX IC: On Semi MC14067 (16:1) Price: $1.00 MCU IC: Microchip PIC18F85K90 (100-pin, 32K Flash, LCD drive, 5V) Price: $2.94 Competitor $2.45 Voltage Reference IC $0.78 Analog MUX IC $1.00 MCU IC $2.94 BOM Integration Value $4.72 Total Value Delivered $7.17 Target PSoC Solution: Total Cost: 16% Total Savings: CY8C3865AXI-204 $6.03 $1.14 All pricing 1 Ku from supplier website EVC Slide: To clearly define the value of the Cypress solution, including BOM integration and unique functionality. 9

21 Here’s How to Get Started
View our demo videos: Download your sensor specific App Note: Buy the Precision Analog Sensor Kit and PSoC 3 Kit or PSoC 5LP Kit (CY8CKIT-030) $99 (CY8CKIT-050) $99 (CY8CKIT-025) $99 Windmills by Vestas I/O Module by Unimat 10-sensor temperature measurement Special Purpose Temperature Controllers by Cell System Temperature Transducer Converts temperature and voltage inputs to digital data for Programmable Logic Controller used in plant automation Controls four Peltier modules that convert power into heating or cooling Measures temperature and communicates information over 4-20mA or HART protocol Call to Action: To tell salespeople how to proceed. To ask them to volunteer account names, to schedule joint account visits, to use the scripted , and to set up a demo. 11

22 References and Links Demo Videos: www.cypress.com/go/tempsense
Demonstrates Precision Analog Sensor Kit operation and accuracy measurement Precision Analog Sensor Kit (CY8CKIT-025) Page: Contains kit documentation and three Example Projects for multi-sensor designs PSoC 3 Kit (CY8CKIT-030) Page: PSoC 5LP Kit (CY8CKIT-050) Page: Temperature Sensing and Control application page: Contains links to all temperature sensing related collateral from Cypress App Note AN75511 for Thermocouple: App Note AN70698 for RTD: App Note AN66477 for Thermistor: App Note AN60590 for Diode: App Note AN66444 for offset cancellation technique: App Note AN65977 for TMP05 / TMP06 digital sensor: App Note AN66627 for Intelligent Fan Controller: Other available materials: Provide distributors with comprehensive view of resources to assist in selling the solution. 13


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