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Range

Range是一种计算机术语,在Excel中,Range集合代表某一单元格、某一行、某一列、某一选定区域(该区域可包含一个或若干连续单元格区域),或者某一三维区域。可用Range(arg)(其中arg为区域名称)来返回代表单个单元格或单元格区域的Range对象。另外有同名汽车。
  • LT1017:Circuitry for Single Cell Operation

      Portable, battery-powered operation of electronic apparatushas become increasingly desirable. Medical, remotedata acquisition, power monitoring and other applicationsare good candidates for battery operation. In some circumstances,due to space, power or reliability considerations,it is preferable to operate the circuitry from a single 1.5Vcell. Unfortunately, a 1.5V supply eliminates almost alllinear ICs as design candidates. In fact, the LM10 opamp-reference and the LT®1017/LT1018 comparators arethe only IC gain blocks fully specifi ed for 1.5V operation.Further complications are presented by the 600mV dropof silicon transistors and diodes. This limitation consumesa substantial portion of available supply Range, makingcircuit design diffi cult. Additionally, any circuit designedfor 1.5V operation must function at end-of-life batteryvoltage, typically 1.3V. (See Box Section, “Componentsfor 1.5V Operation.”)

    标签: Circuitry Operation Single 1017

    上传时间: 2013-12-20

    上传用户:Wwill

  • 射频集成电路设计John Rogers(Radio Freq

    Radio Frequency Integrated Circuit Design I enjoyed reading this book for a number of reasons. One reason is that itaddresses high-speed analog design in the context of microwave issues. This isan advanced-level book, which should follow courses in basic circuits andtransmission lines. Most analog integrated circuit designers in the past workedon applications at low enough frequency that microwave issues did not arise.As a consequence, they were adept at lumped parameter circuits and often notcomfortable with circuits where waves travel in space. However, in order todesign radio frequency (RF) communications integrated circuits (IC) in thegigahertz Range, one must deal with transmission lines at chip interfaces andwhere interconnections on chip are far apart. Also, impedance matching isaddressed, which is a topic that arises most often in microwave circuits. In mycareer, there has been a gap in comprehension between analog low-frequencydesigners and microwave designers. Often, similar issues were dealt with in twodifferent languages. Although this book is more firmly based in lumped-elementanalog circuit design, it is nice to see that microwave knowledge is brought inwhere necessary.Too many analog circuit books in the past have concentrated first on thecircuit side rather than on basic theory behind their application in communications.The circuits usually used have evolved through experience, without asatisfying intellectual theme in describing them. Why a given circuit works bestcan be subtle, and often these circuits are chosen only through experience. Forthis reason, I am happy that the book begins first with topics that require anintellectual approach—noise, linearity and filtering, and technology issues. Iam particularly happy with how linearity is introduced (power series). In therest of the book it is then shown, with specific circuits and numerical examples,how linearity and noise issues arise.

    标签: Rogers Radio John Freq

    上传时间: 2014-12-23

    上传用户:han_zh

  • 用于汽车无线电和信息娱乐系统的8V开关电源

    Abstract: This application note illustrates an intermediate 8V switching power supply for an automotive radio and infotainment system.The design withstands the complete automotive input voltage Range (including cold crank and load dump conditions), assuring a stable8V supply for common subsystems such as a CD driver, LCDs, and a radio module in modern infotainment systems. To avoiddisturbance in the AM and FM bands, the switching power supply runs at a fixed frequency of 2MHz, enabling an ideal solution forradio systems.

    标签: 汽车无线电 信息娱乐系统 开关电源

    上传时间: 2013-11-20

    上传用户:feitian920

  • Lakewood (MAXREFDES7#)3.3V Input, ±12V (±15V) Output Isolated Power Supply

    Abstract: This document details the Lakewood (MAXREFDES7#) subsystem reference design, a 3.3V input, ±12V (±15V) output, isolated power supply. The Lakewood reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and two wide input Range and adjustable output low-dropout linear regulators (LDOs). Test results and hardware files are included.

    标签: MAXREFDES Lakewood Isolated Output

    上传时间: 2013-11-02

    上传用户:fengzimili

  • Riverside (MAXREFDES8#)3.3V Input, 12V (15V) Output Isolated Power Supply

    Abstract: This document details the Riverside (MAXREFDES8#) subsystem reference design, a 3.3V input, 12V (15V) output, isolated power supply. The Riverside reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and one wide input Range and adjustable output low-dropout linear regulator (LDO). Test results and hardware files are included.

    标签: Riverside MAXREFDES Isolated Output

    上传时间: 2013-11-16

    上传用户:会稽剑客

  • 隔离电源设计手册

    Abstract: This document details the Oceanside (MAXREFDES9#) subsystem reference design, a 3.3V to 15V input,±15V (±12V) output, isolated power supply. The Oceanside design includes a high-efficiency step-up controller, a36V H-bridge transformer driver for isolated supplies, a wide input Range, and adjustable output low-dropout linearregulator (LDO). Test results and hardware files are included.  

    标签: 隔离电源 设计手册

    上传时间: 2013-10-12

    上传用户:jinyao

  • 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