power pcb To protel 软件
上传时间： 2013-09-11
上传用户：sunshine1402
Can convert data file(txt format)to CAD(scr)file,and draw curve!
上传时间： 2013-09-11
上传用户：天空说我在
gerber-to-protel is a pdf file ,which is used for convert bmp to pcb.
标签： gerber-to-protel file is
上传时间： 2013-09-18
上传用户：liuxinyu2016
Differential Nonlinearity: Ideally, any two adjacent digitalcodes correspond to output analog voltages that are exactlyone LSB apart. Differential non-linearity is a measure of theworst case deviation from the ideal 1 LSB step. For example,a DAC with a 1.5 LSB output change for a 1 LSB digital codechange exhibits 1⁄2 LSB differential non-linearity. Differentialnon-linearity may be expressed in fractional bits or as a percentageof full scale. A differential non-linearity greater than1 LSB will lead to a non-monotonic transfer function in aDAC.Gain Error (Full Scale Error): The difference between theoutput voltage (or current) with full scale input code and theideal voltage (or current) that should exist with a full scale inputcode.Gain Temperature Coefficient (Full Scale TemperatureCoefficient): Change in gain error divided by change in temperature.Usually expressed in parts per million per degreeCelsius (ppm/°C).Integral Nonlinearity (Linearity Error): Worst case deviationfrom the line between the endpoints (zero and full scale).Can be expressed as a percentage of full scale or in fractionof an LSB.LSB (Lease-Significant Bit): In a binary coded system thisis the bit that carries the smallest value or weight. Its value isthe full scale voltage (or current) divided by 2n, where n is theresolution of the converter.Monotonicity: A monotonic function has a slope whose signdoes not change. A monotonic DAC has an output thatchanges in the same direction (or remains constant) for eachincrease in the input code. the converse is true for decreasing codes.
标签： Converters Defini DAC
上传时间： 2013-10-30
上传用户：stvnash
R7732_7733_7735是Richpower公司推出的高效AC TO DC 电源PWM控制芯片,最大功率可以做到75W;如有需求请联系我电话：021-54262182EXT 114 (Eric) QQ ：1187337351
上传时间： 2013-11-20
上传用户：xz85592677
长电c2383 TO-92L
上传时间： 2013-11-09
上传用户：wvbxj
高的工作电压高达100V N双N沟道MOSFET同步驱动 The D810DCDC is a synchronous step-down switching regulator controller that can directly step-down voltages from up to 100V, making it ideal for telecom and automotive applications. The D810DCDC uses a constant on-time valley current control architecture to deliver very low duty cycles with accurate cycle-by-cycle current limit, without requiring a sense resistor. A precise internal reference provides 0.5% DC accuracy. A high bandwidth (25MHz) error amplifi er provides very fast line and load transient response. Large 1Ω gate drivers allow the D810DCDC to drive multiple MOSFETs for higher current applications. The operating frequency is selected by an external resistor and is compensated for variations in VIN and can also be synchronized to an external clock for switching-noise sensitive applications. Integrated bias control generates gate drive power from the input supply during start-up and when an output shortcircuit occurs, with the addition of a small external SOT23 MOSFET. When in regulation, power is derived from the output for higher effi ciency.
上传时间： 2013-10-24
上传用户：wd450412225
毕业设计 USB TO Gigabit LAN 网卡 随着网络技术飞速发展，多媒体的应用越来越多，人们对网络的要求也越来越高，为了适应市场的需求，网卡出现了。它以其结构简单、成本低廉、兼容性强等诸多的优越性得到了广泛的应用。由于网络的应用越来越广泛，网卡的应用也越来越多、功能越来越强大。开始时由于技术方面的限制，网卡只有10Mbps的吞吐量，由于网络技术的发展，100Mbps吞吐量的网卡开始在市场上得到广泛的应用。而现在1000Mbps吞吐量的网卡的出现又给网络的传输带来了新的活力。 论文中主要阐述了基于以太网的USB TO Gigabit LAN网卡的设计与制作。论文首先对以太网进行了介绍，紧接着讲了网卡的基本知识。随后又对USB TO Gigabit LAN网卡的电路设计和制作进行了详细的描述。论文还包括了USB TO Gigabit LAN网卡的调试等内容。
上传时间： 2014-12-02
上传用户：wab1981
PICKIT™ 2 PROGRAMMER-TO-GO USER GUIDE The PICkit 2 Programmer-To-Go functionality allows a PIC MCU memory image to be downloaded into the PICkit 2 unit for later programming into a specific PIC MCU. No software or PC is required to program devices once the PICkit 2 unit is set up for Programming-To-Go. A USB power source for the PICkit 2 is all that is needed.
标签： PROGRAMMER-TO PICKIT 8482
上传时间： 2013-10-29
上传用户：ca05991270
The PCA9541 is a 2-to-1 I2C-bus master selector designed for high reliability dual masterI2C-bus applications where system operation is required, even when one master fails orthe controller card is removed for maintenance. The two masters (for example, primaryand back-up) are located on separate I2C-buses that connect to the same downstreamI2C-bus slave devices. I2C-bus commands are sent by either I2C-bus master and are usedto select one master at a time. Either master at any time can gain control of the slavedevices if the other master is disabled or removed from the system. The failed master isisolated from the system and will not affect communication between the on-line masterand the slave devices on the downstream I2C-bus.
上传时间： 2013-10-09
上传用户：3294322651
