电源设计应用
满足AMD K8低功耗移动处理器规范的电源
摘要：本应用笔记描述了一个完全满足AMD® K8低功耗移动处理器规范的两相、同步整流型降压调节器。包括一个1.2V、27.3A参考设计的详细电路工作原理、电路图、元件清单以及测试...
2009-05-03 1554
导线清洁技术的研发和ACSR和ACSS导线承压连接件的安装
导线清洁技术的研发和ACSR和ACSS导线承压连接件的安装 承压连接件的故障会给输变电系统的安全可靠运行带来极大的风险。这类故...
2009-05-02 1678
基于Metso DNA技术的DCS
基于Metso DNA技术的DCS Metso Automation 将为新电站提供1 套基于MetsoDNA技术的全套DCS系统。 ...
2009-05-02 1710
校准偏置注册的DS2761-Calibrating the
Abstract: The DS2761 contains a current offset register that can be utilized by the designer to eliminate inherent offset introduced by the current A/D within the IC. Improper calibration of this register, however, can negate any positive ...
2009-04-30 1095
估算DS2715 NiMH电池充电器的开关速度
摘要：DS2715电池充电器的开关速度因充电模式、电感选择和电池电压而有所不同。某些情况下，需要了解各种条件下的开关速度,以解决噪声灵敏度、峰值充电电流和电感选择限制等...
2009-04-30 1452
简化锂离子(Li+)电池充电器测试
摘要：由于Li+电池充电器的充电过程会持续一个小时甚至更长的时间，利用实际负载(即电池)对充电器进行测试将非常耗时。本应用笔记介绍了一种简单的Li+电池仿真方法，与采用实...
2009-04-30 922
Dual Boost Regulator Handles H
Among 2-cell boost regulators, five watts (5V at 1A) is "high power." But, obtaining even 5W from a 2-cell or 3-cell battery is not a trivial problem. Peak currents exceed 2A, and the small voltage drops they produce in the power devices, ...
2009-04-30 1790
能源管理的小型便携式系统-Energy Management
Numerous diverse and conflicting constraints burden the designer of small hand-held products. Aside from the customary restrictions on size and weight, these constraints include cost limitations, strict time schedules, battery-life goals m...
2009-04-30 3156
Power Efficiency in Next-Gener
The need for ultra-low on-resistance and low switching losses can make notebook MOSFET choice difficult. Nonetheless, MOSFET characteristics dominate DC-DC power conversion efficiency. This is critical for notebook CPUs due out in 1999....
2009-04-29 1351
电荷泵电压分配器的性能-Properties of the
Abstract: The charge-pump voltage converter is known mostly in its doubler and inverter configuration. This article focuses on the voltage-splitter charge-pump configuration, which divides the input voltage precisely by two. ...
2009-04-29 1245
Dual 1.4MHz Synchronous Buck R
Many portable universal serial bus (USB) devices are powered from the USB port. Most of these devices need a power fail warning to perform an orderly shut down in case of USB power loss. Referred to as a "dying gasp," the warning time is t...
2009-04-29 1528
The MAX1864 Generates 1.2V or
With most regulators, it is difficult to generate an output voltage that is less than the reference voltage. This note describes a way to use the MAX1864 to achieve an output voltage less than its 1.236V reference.The MAX1864 inclu...
2009-04-29 851
The MAX1802 for Digital Still
Digital camera supplies must be small and efficient. The power supplies must be relatively free of low-power noise, so that post filtering can be easily achieved. They must be capable of generating several voltages. Most camera makers requ...
2009-04-29 1104
Adding POR Function to the MAX
The MAX1864 power-supply controller is designed for cost-effective applications such as cable modem consumer premise equipment (CPE), XDSL CPE and set-top boxes. It includes a current mode synchronized step-down controller and two positive...
2009-04-29 1024
接口的DS2760 1线高精度锂离子电池监控和保护IC在单片
Abstract: This application note provides the reader with information concerning how to interface the Maxim DS2760 Battery Monitor and Protector IC to a microcontroller. The DS5000 microcontroller module is used for example purposes. Both h...
2009-04-29 1136
模拟集成电路的低电压系统-Analog ICs for Lo
Abstract: This article about low-voltage ICs discusses many types of low-voltage ICs, including voltage regulators, data converters, op amps and current monitors, comparators, microprocessor supervisors, voltage references, analog switches...
2009-04-29 1087
用两个单向电流检测放大器组成一个双向电流检测放大器
摘要：许多电池电流监测应用中需要双向电流检测功能，以测量电池的充电和放电电流。本文介绍了怎样用两个单向电流检测放大器，比如MAX4172和MAX4173，组成一个双向电流检测放大...
2009-04-29 1362
尽量减少短路电流脉冲的热插拔控制器-Minimize Sho
Abstract: Because of internal circuit-breaker delay and limited MOS-gate pulldown current, many hot-swap controllers do not limit current during the first 10µs to 50µs following a shorted output. The result can be a brief flow ...
2009-04-29 935
Series Protection for Power-Li
Abstract: This application note describes a circuit that protects an n-channel power MOSFET against low and high voltages. It includes a high-side switch-driver IC and fast-response, 3-transistor, overvoltage detector. Vo...
2009-04-29 1104
隔离式电源电信应用-Isolated Power Suppl
Abstract: Simple easy to use high side current sense amps protects power supplies as a result of irregular supply voltage caused by short-circuit conditions. To ensure compliance with all international standards, the desi...
2009-04-29 1626
规格与测量机振荡器噪声集成电路基站混频器-Specifica
Abstract: Residual phase noise from local oscillators (LO) can be degraded by additive noise of on-chip local oscillator drivers/buffers in integrated circuit mixers. Reciprocal mixing of strong RF signals with the LO noise degrades the re...
2009-04-29 719
简单电力场效应管驱动器是孤立的和DC耦合-Simple Po
Abstract: An isolated transformer-driver IC (MAX845) and small external transformer produce an isolated gate-control signal for a power FET. Designers of power electronic circuits must often drive power switches that feed...
2009-04-29 919
CCFL推挽式缓冲电路
摘要：DS3984, DS3988, DS3881, DS3882, DS3992和DS3994为冷阴极荧光灯(CCFL)控制器，它们使用推挽结构来产生驱动荧光灯所需的高压交流波形。在推挽式驱动器中，升压变压器的寄生电感与n沟...
2009-04-29 2665
修改MAX2010电路使其工作在450MHz
摘要：本应用笔记说明如何对MAX2010 (可调节RF预失真器)标准评估板进行下盖，使其工作频率优化在450Hz。默认情况下，预失真器工作在500MHz至1000MHz，但是，对MAX2010评估板稍做修改，...
2009-04-29 623
修改MAX2010电路使其工作在360MHz
摘要：本应用笔记说明如何对MAX2010 (可调节RF预失真器)标准评估板进行下盖，使其工作频率优化在360Hz。默认情况下，预失真器工作在500MHz至1100MHz，但是，对MAX2010评估板稍做修改，...
2009-04-29 817
Inexpensive Peak Detector Feat
Abstract: This circuit, which uses a digital potentiometer (pot) and a comparator, features droopless operation that is not normally associated with peak detectors that have traditionally used rectifiers and sample-and-holds (S/H). ...
2009-04-28 1264
利用数字电位器实现按键保持控制
摘要：许多装置需要一个用户接口来调整温度、背光强度和电源电压等，这个用户接口需要能够避免按键调整中的误操作。若在这些装置中使用一个数字电位器，设计人员可以通过...
2009-04-28 828
半导体数字电位器：常见问题
Abstract: This application note answers frequently asked questions for Dallas Semiconductor digital potentiometers. How do I set up the DS1267 in stacked configuration?Connect the H0 terminal to the L1 terminal...
2009-04-28 886
求戴维等效电路的EPOT基于偏置电阻网络
Additional Information: EPOT Applications: Offset Adjustment in Op-Amp Circuits To model the network shown below in Figure 1 as the Thevenin equivalent shown below in Figure 2, find the Thevenin Voltage (Vth) and the Thevenin Resis...
2009-04-28 1051
编辑推荐厂商产品技术软件/工具OS/语言教程专题
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