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POWER

POWER函數的主要作用是返回給定數字的乘冪。POWER函數的語法為:POWER(number,POWER),其中參數number表示底數;參數POWER表示指數。兩個參數可以是任意實數,當參數POWER的值為小數時,表示計算的是開方;當參數number取值小于0且參數POWER為小數時,POWER函數將返回#NUM!錯誤值。[1]
  • 交流電壓,電流轉換器

    交流電壓,電流轉換器 特點: 精確度0.25%滿刻度(RMS) 多種輸入,輸出選擇 輸入與輸出絕緣耐壓2仟伏特/1分鐘 沖擊電壓測試5仟伏特(1.2x50us) (IEC255-4,ANSI C37.90a/1974) 突波電壓測試2.5仟伏特(0.25ms/1MHz) (IEC255-4) 尺寸小,穩定性高 2:主要規格 精確度:0.25%F.S.(RMS) (23 ±5℃) 輸入負載: <0.2VA(voltage) <0.2VA(current) 最大過載能力: Current related input:3 x rated continuous 10 x rated 30 sec. ,25 x rated 3sec. 50 x rated 1sec. Voltage related input:maximum 2x rated continuous 輸出反應時間: <250ms (0~90%) 輸出負載能力: <10mA for voltage mode <10V for current mode 輸出漣波: <0.1% F.S. 歸零調整范圍: 0~±5% F.S. 最大值調整范圍: 0~±10% F.S. 溫度系數: 100ppm/℃ (0~50℃) 隔離特性: Input/Output/POWER/Case 絕緣抗阻: >100Mohm with 500V DC 絕緣耐壓能力: 2KVac/1 min. (input/output/POWER) 行動測試: ANSI C37.90a/1974,DIN-IEC 255-4 impulse voltage 5KV (1.2 x 50us) 突波測試: 2.5KV-0.25ms/1MHz 使用環境條件: -20~60℃(20 to 90% RH non-condensed) 存放環境條件: -30~70℃(20 to 90% RH non-condensed) CE認證: EN 55022:1998/A1:2000 Class A EN 61000-3-2:2000 EN 61000-3-3:1995/A1:2001 EN 55024:1998/A1:2001

    標簽: 交流電壓 電流轉換器

    上傳時間: 2013-11-09

    上傳用戶:非衣2016

  • 微電腦型數學演算式隔離傳送器

    特點: 精確度0.1%滿刻度 可作各式數學演算式功能如:A+B/A-B/AxB/A/B/A&B(Hi or Lo)/|A|/ 16 BIT類比輸出功能 輸入與輸出絕緣耐壓2仟伏特/1分鐘(input/output/POWER) 寬范圍交直流兩用電源設計 尺寸小,穩定性高

    標簽: 微電腦 數學演算 隔離傳送器

    上傳時間: 2014-12-23

    上傳用戶:ydd3625

  • 3GHz射頻信號源模塊GR6710

    產品概要: 3GHz射頻信號源模塊GR6710是軟件程控的虛擬儀器模塊,可以通過測控軟件產生9kHz到3GHz的射頻信號源和AM/FM/CW調制輸出,具有CPCI、PXI、SPI、RS232、RS485和自定義IO接口。 產品描述: 3GHz射頻信號源模塊GR6710是軟件程控的虛擬儀器模塊,可以通過測控軟件產生9kHz到3GHz的射頻信號源和AM/FM/CW調制輸出,還可以通過IQ選件實現其它任意調制輸出。GR6710既可程控發生點頻信號和掃頻信號,也支持內部調制和外部調制。GR6710可安裝于3U/6U背板上工作,也可以獨立供電工作,使用靈活。該模塊可用于通信測試、校準信號源。 技術指標 頻率特性 頻率范圍:9kHz~3GHz,500KHz以下指標不保證 頻率分辨率:3Hz,1Hz(載頻<10MHz時) 頻率穩定度:晶振保證 電平特性 電平范圍:-110dBm~+10dBm 電平分辨率:0.5dB 電平準確度:≤±2.5dB@POWER<-90dBm,≤±1.5dB@POWER>-90dBm 輸出關斷功能 頻譜純度 諧波:9KHz~200MHz≥20dBc,200MHz~3GHz≥30dBc 非諧波:≤80dBc典型值(偏移10kHz,載頻<1GHz),≥68dBc(偏移10kHz,其它載頻), 鎖相環小數分頻雜散≥64dBc(偏移10kHz) SSB相噪: ≤-98dBc/Hz 偏移20kHz(500MHz) ≤-102dBc/Hz 偏移20kHz(1GHz) ≤-90dBc/Hz 偏移20kHz(>1GHz) 調制輸出:調幅AM、調頻FM、脈沖CW,其它調制輸出可以通過IQ選件實現 調制源:內、外 參考時鐘輸入和輸出:10MHz,14dBm 控制接口:CPCI、PXI、SPI、RS232、RS485、自定義GPIO 射頻和時鐘連接器:SMA-K 電源接口:背板供電、獨立供電 可選 電源及其功耗:+5V DC、±12V DC(紋波≤2%輸出電壓),≤38W 結構尺寸:3U高度4槽寬度(100mm×160mm×82mm,不含連接器部分) 工作環境:商業級溫度和工業級溫度 可選,振動、沖擊、可靠性、MTBF 測控軟件功能:射頻信號發生、調制信號輸出、跳頻/掃頻信號發生、支持WindowsXP系統 成功案例: 通信綜測儀器內部的信號源模塊 無線電監測設備內部的信號校準模塊 無線電通信測試儀器的調制信號發生

    標簽: 3GHz 6710 GR 射頻信號源

    上傳時間: 2013-11-13

    上傳用戶:s363994250

  • MAX5713-MAX5715數據資料

    The MAX5713/MAX5714/MAX5715 4-channel, low-POWER,8-/10-/12-bit, voltage-output digital-to-analog converters(DACs) include output buffers and an internal referencethat is selectable to be 2.048V, 2.500V, or 4.096V. TheMAX5713/MAX5714/MAX5715 accept a wide supplyvoltage range of 2.7V to 5.5V with extremely low POWER(3mW) consumption to accommodate most low-voltageapplications. A precision external reference input allowsrail-to-rail operation and presents a 100kI (typ) load toan external reference.

    標簽: MAX 5713 5715 數據資料

    上傳時間: 2013-12-23

    上傳用戶:ArmKing88

  • MAX4968,MAX4968A數據手冊

    The MAX4968/MAX4968A are 16-channel, high-linearity,high-voltage, bidirectional SPST analog switches with18I (typ) on-resistance. The devices are ideal for use inapplications requiring high-voltage switching controlledby a low-voltage control signal, such as ultrasound imagingand printers. The MAX4968A provides integrated40kI (typ) bleed resistors on each switch terminal todischarge capacitive loads. Using HVCMOS technology,these switches combine high-voltage bilateral MOSswitches and low-POWER CMOS logic to provide efficientcontrol of high-voltage analog signals.

    標簽: 4968 MAX 數據手冊

    上傳時間: 2013-10-09

    上傳用戶:yepeng139

  • 雙絞線和低通濾波器降低EMI_RFI

    Abstract: Alexander Graham Bell patented twisted pair wires in 1881. We still use them today because they work so well. In addition we have the advantage ofincredible computer POWER within our world. Circuit simulators and filter design programs are available for little or no cost. We combine the twisted pair and lowpassfilters to produce spectacular rejection of radio frequency interference (RFI) and electromagnetic interference (EMI). We also illustrate use of a precision resistorarray to produce a customizable differential amplifier. The precision resistors set the gain and common mode rejection ratios, while we choose the frequencyresponse.

    標簽: EMI_RFI 雙絞線 低通濾波器

    上傳時間: 2014-11-26

    上傳用戶:Vici

  • COOLMOS全面認識

    Recently a new technology for high voltage POWER MOSFETshas been introduced – the CoolMOS™ . Based on thenew device concept of charge compensation the RDS(on) areaproduct for e.g. 600V transistors has been reduced by afactor of 5. The devices show no bipolar current contributionlike the well known tail current observed during the turn-offphase of IGBTs. CoolMOS™ virtually combines the lowswitching losses of a MOSFET with the on-state losses of anIGBT.

    標簽: COOLMOS

    上傳時間: 2013-11-14

    上傳用戶:zhyiroy

  • 高精度I2C實時時鐘的設計

    Abstract: This application note presents an overview of the operational characteristics of accurate I²C real-time clocks (RTCs),including the DS3231, DS3231M, and DS3232. It focuses on general application guidelines that facilitate use of device resources forPOWER management, I²C communication circuit configurations, and I²C characteristics relative to device POWER-up sequences andinitializations. Additional discussions on decoupling are provided to support developing strategies for mitigating POWER-supply pushingof device frequency.

    標簽: I2C 高精度 實時時鐘

    上傳時間: 2013-11-23

    上傳用戶:WMC_geophy

  • DN426 6通道工業監控應用的SAR ADC

      The 14-bit LTC2351-14 is a 1.5Msps, low POWER SARADC with six simultaneously sampled differential inputchannels. It operates from a single 3V supply and featuressix independent sample-and-hold amplifi ers and a singleADC. The single ADC with multiple S/HAs enables excellentrange match (1mV) between channels and channel-tochannelskew (200ps).

    標簽: 426 ADC SAR DN

    上傳時間: 2014-12-23

    上傳用戶:天誠24

  • 獨特的IC BUFFER增強運算放大器設計

    This note describes some of the unique IC design techniques incorporated into a fast, monolithic POWER buffer, the LT1010. Also, some application ideas are described such as capacitive load driving, boosting fast op amp output current and POWER supply circuits.

    標簽: BUFFER 運算 放大器設計

    上傳時間: 2013-11-12

    上傳用戶:671145514

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