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Power

Power函数的主要作用是返回给定数字的乘幂。Power函数的语法为:Power(number,Power),其中参数number表示底数;参数Power表示指数。两个参数可以是任意实数,当参数Power的值为小数时,表示计算的是开方;当参数number取值小于0且参数Power为小数时,Power函数将返回#NUM!错误值。[1]
  • 为您的FPGA选择合适的电源

    Abstract: There are many things to consider when designing a Power supply for a field-programmablegate array (FPGA). These include (but are not limited to) the high number of voltage rails, and thediffering requirements for both sequencing/tracking and the voltage ripple limits. This application noteexplains these and other Power-supply considerations that an engineer must think through whendesigning a Power supply for an FPGA.

    标签: FPGA 电源

    上传时间: 2013-11-12

    上传用户:金苑科技

  • 交流瓦特/瓦特小时,乏尔/乏尔小时转换器

    交流瓦特/瓦特小时,乏尔/乏尔小时转换器 特点: 精确度0.25%满刻度 多种输入,输出选择 输入与输出绝缘耐压2仟伏特/1分钟 冲击电压测试5仟伏特(1.2x50us) 突波电压测试2.5仟伏特(0.25ms/1MHz) (IEC255-4) 尺寸小,稳定性高 主要规格: 精确度: 0.25% F.S. (23 ±5℃) 输入负载: <0.2VA (Voltage) <0.2VA (Current) 最大过载能力: Current related input:3 x rated continuous 10 x rated 30 sec. ,25 x rated 3sec. 50 x rated 1sec. Voltage related input:maximum 2 x rated continuous 输出反应速度: < 250ms(0~90%) 输出负载能力: < 10mA for voltage mode < 10V for current mode 输出之涟波 : < 0.1% F.S. 脉波输出型态: Photocouple of open collector (max.30V/40mA) 归零调整范围: 0~±5% F.S. 最大值调整范围: 0~±10% F.S. 温度系数: 100ppm/℃ (0~50℃) 隔离特性: Input/Output/Power/Case 绝缘阻抗: >100Mohm with 500V DC 绝缘耐压能力: 2KVac/1 min. (input/output/Power/case) 突波测试: ANSI C37.90a/1974,DIN-IEC 255-4 impulse voltage 5KV(1.2x50us) 使用环境条件: -20~60℃(20 to 90% RH non-condensed) 存放环境条件: -30~70℃(20 to 90% RH non-condensed) CE认证: EN 55022:1998/A1:2000 Class A EN 61000-3-2:2000 EN 61000-3-3:1995/A1:2001 EN 55024:1998/A1:2001

    标签: 瓦特 交流 转换器

    上传时间: 2013-11-11

    上传用户:wettetw

  • 功率因数与无功补偿

    For Power electronic design

    标签: 功率因数 无功补偿

    上传时间: 2014-12-24

    上传用户:1234321@q

  • 电阻式温度隔离双输出传送器

    特点(FEATURES) 精确度0.1%满刻度(Accuracy 0.1%F.S.) 多种输入输出选择(Wide selection of input/output range) 三线式接线自动补偿线路阻抗效应(3 wire configuration automatically compensate line resistance effects) 宽范围交直流两用电源设计(Wide input range for auxiliary Power) 尺寸小,稳定性高(Dimension small & High stability)

    标签: 电阻式 温度 传送器 隔离

    上传时间: 2013-10-17

    上传用户:Huge_Brother

  • 电位计隔离双输出传送器

    特点(FEATURES) 精确度0.1%满刻度(Accuracy 0.1%F.S.) 宽输入范围200ohm 至 50Kohm(Wide inpuet ranges from 200ohm to 50Kohm) 多种输入输出选择(Wide selection of input/output range) 输入与输出1/输出2绝缘耐压 2仟伏特/1分钟(Dielectric strength 2KVac/1min.(input/output1/output2)) 宽范围交直流两用电源设计(Wide input range for auxiliary Power) 尺寸小,稳定性高(Dimension small & High stability)

    标签: 电位计 传送器 隔离 输出

    上传时间: 2013-10-28

    上传用户:sardinescn

  • 直流信号隔离双输出传送器

    特点(FEATURES) 精确度0.1%满刻度(Accuracy 0.1%F.S.) 多种输入输出选择(Wide selection of input/output range) 输入与输出1/输出2绝缘耐压 2仟伏特/1分钟(Dielectric strength 2KVac/1min.(input/output1/output2)) 宽范围交直流两用电源设计(Wide input range for auxiliary Power) 尺寸小,稳定性高(Dimension small & High stability)

    标签: 直流信号 传送器 隔离 输出

    上传时间: 2014-12-24

    上传用户:qimingxing130

  • 微电脑型频率隔离双输出传送器

    特点(FEATURES) 精确度0.03%满刻度(Accuracy 0.03%F.S.) 频率输入范围0.01Hz至80KHz(Input range from 0.01 Hz to 80KHz) 16 BIT 隔离类比输出(16 bit DAC isolating analog output) 输入与输出1/输出2绝缘耐压 2仟伏特/1分钟(Dielectric strength 2KVac/1min.(input/output1/output2)) 宽范围交直流两用电源设计(Wide input range for auxiliary Power) 尺寸小,稳定性高(Dimension small & High stability)

    标签: 微电脑 传送器 频率 隔离

    上传时间: 2013-10-21

    上传用户:dljwq

  • 微电脑型数学演算式双输出隔离传送器

    特点(FEATURES) 精确度0.1%满刻度 (Accuracy 0.1%F.S.) 可作各式数学演算式功能如:A+B/A-B/AxB/A/B/A&B(Hi or Lo)/|A| (Math functioA+B/A-B/AxB/A/B/A&B(Hi&Lo)/|A|/etc.....) 16 BIT 类比输出功能(16 bit DAC isolating analog output function) 输入/输出1/输出2绝缘耐压2仟伏特/1分钟(Dielectric strength 2KVac/1min. (input/output1/output2/Power)) 宽范围交直流两用电源设计(Wide input range for auxiliary Power) 尺寸小,稳定性高(Dimension small and High stability)

    标签: 微电脑 数学演算 输出 隔离传送器

    上传时间: 2013-11-24

    上传用户:541657925

  • TMS320C6678+DSP的电源设计

        针对TI公司最新发布的TMS320C6678 DSP设计出一种实用有效的电源。采用统一的12 V电源供电,制作出满足电压幅值要求与时序要求的开关电源。该设计主要由各类电源转换电路组成,并通过使用Fusion Digital Power Designer软件对电源芯片进行编程。仿真结果表明,该电源工作稳定,各方面的参数均符合要求。

    标签: 6678 TMS 320 DSP

    上传时间: 2013-10-12

    上传用户:asdstation

  • 电源供应器与数字电位器校准应用笔记

    Abstract: A resistive feedback network is often used to set the output voltage of a Power supply. A mechanical potentiometer (pot)conveniently solves the problem of adjusting a Power supply. For easier automatic calibration, a mechanical pot can be replaced witha digital pot. This application note presents a calibration solution that uses a digital pot, because digipots are smaller, do not movewith age or vibration, and can be recalibrated remotely. This proposed solution reduces the susceptibility of the system to thetolerance of the digital pot's end-to-end resistance, making the solution optimal fordesigners. This application note also explainssome of the equations required to calculate the resistor chain values and to use a digital pot in this way. A spreadsheet withstandard reisistor values is available for easy calculations.

    标签: 电源供应器 数字电位器 应用笔记 校准

    上传时间: 2013-10-31

    上传用户:caiguoqing