基于ADI双核处理器及ADC构建灵活的智能电子设备

1、The World Leader in High Performance Signal Processing Solutions 基于基于ADIADI双核处理器及双核处理器及ADCADC 构建灵活的智能电子设备构建灵活的智能电子设备 Sept. 2013 叶健叶健 Ken.Y Analog Devices Analog Devices ADI 专注于能源应用 3 Precision Amplifiers and References Blackfin and SHARC DSPs Interface Power Mgmnt iCoupler Digital Isolators Voltage/

2、Current Power Line Monitoring Electric Metering AFEs RF Transceivers MEMS Vibration Sensors Leveraging ASSP and Core Technology #1 WW Market Share Analog Devices 4 二次侧电子设备目前的趋势：二次侧电子设备目前的趋势： 精度越来越高精度越来越高 计算量通讯量越来越大计算量通讯量越来越大 应用环境越来越恶劣应用环境越来越恶劣 客户要求越来越多变客户要求越来越多变合理？不合理？合理？不合理？ 终端客户可接受的价格越来越低终端客户可接受的价

3、格越来越低 成功的要素：成功的要素： 关注细节，灵活变通关注细节，灵活变通 Analog Devices 举个例子来看如何细节如何影响成败 5 电流互感器电流互感器 I1I2 一个电流采集通道一个电流采集通道 模数转换器模数转换器 采采 样样 电电 阻阻 电流互感器电流互感器 I1I2 模数转换器模数转换器 采采 样样 电电 阻阻 电流互感器电流互感器 I1I2 采采 样样 电电 阻阻 + - 模数转换器模数转换器 电流互感器电流互感器 I1I2 V1 + - 采采 样样 电电 阻阻 模数转换器模数转换器 Analog Devices 运放相位反转的问题 q一些运放，当运放输入电压超过共模电压

4、范围时发生相位反转一些运放，当运放输入电压超过共模电压范围时发生相位反转 q当运放配置为正向放大器或跟随器时当运放配置为正向放大器或跟随器时 q相位反转相位反转 = 差动保护误动差动保护误动 6 Analog Devices OP1177/OP2177/OP4177 Precision Low Noise, Low Input Bias Current Operational Amplifiers uPrecision and Low Power lLow Power Precision RRO: 400uA l8 nV/sqrtHz 1 kHz lLow Input Bias Current

5、: 2nA max lLow Offset Voltage Drift: 0.7m mV/C lUnity Gain Stable lNo Phase Reversal VOSIsyNoiseBandwidth VoltagesPackageTemp 60 V max 500 A max7.9 nV/Hz1.3 MHz 2.5 V 18 VSee Below-40C 125C OP1177OP2177OP4177 uSingle uPackage (MSOP-8, SOIC-8) uDual uPackage (MSOP-8, SOIC-8) uQuad uPackage (SOIC-14,

6、TSSOP-14) VIN OP1177 + RL Excellent For Precision Analog Gain Front End 7 Analog Devices 8 Analog Devices 电容和谐波 9 Analog Devices T.C (0.1%/C = 40C 0.6V) and Junction Capacitance 10 Trade-off: Vsy, Breakdown voltage and reverse leakage current 电容和谐波 Analog Devices AD7606 16 bit, 8 channel Data Acquis

7、ition SystemAD7606 16 bit, 8 channel Data Acquisition System q8-ch simultaneous sampling qSingle 5V supply operation q+/-10V or +/-5V bipolar input qAnalog input clamp protection q1Meg analog input impedance q2nd Order Filter qFlexible Digital filter q2.5V REF and reference buffer qSerial and Parall

8、el interface. q64 lead LQFP Package q90dB SNR 200k q95.5dB SNR (OS x16) q100mW Power qINL +/- 2 LSB, DNL +/- 0.99 LSB (max) qInput Clamps to +/-16.5V qNFS/PFS 32LSB (max) 11 Analog Devices Analog Input Impedance System architecture for real time GOOSE in power distribution system ( TCP/IP Single thread programming Real-time tasks: Relay protection algorithm GOOSE; SMV? L2 Memory MMS GOOSE SMV IEC61850 system architecture in power transmission SMV required FPGA Ethernet 2 Et