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電源設(shè)計(jì)應(yīng)用
滿足AMD K8低功耗移動(dòng)處理器規(guī)范的電源
摘要：本應(yīng)用筆記描述了一個(gè)完全滿足AMD® K8低功耗移動(dòng)處理器規(guī)范的兩相、同步整流型降壓調(diào)節(jié)器。包括一個(gè)1.2V、27.3A參考設(shè)計(jì)的詳細(xì)電路工作原理、電路圖、元件清單以及測(cè)試...
2009-05-03 標(biāo)簽：處理器 1605
EMAT導(dǎo)線檢測(cè)技術(shù)在現(xiàn)場(chǎng)試用
EMAT導(dǎo)線檢測(cè)技術(shù)在現(xiàn)場(chǎng)試用 調(diào)查顯示在上世紀(jì)90年代末ACSR 導(dǎo)線的致命性故障主要是斷股造成的。隨后的調(diào)查也證明斷...
導(dǎo)線清潔技術(shù)的研發(fā)和ACSR和ACSS導(dǎo)線承壓連接件的安裝
導(dǎo)線清潔技術(shù)的研發(fā)和ACSR和ACSS導(dǎo)線承壓連接件的安裝 承壓連接件的故障會(huì)給輸變電系統(tǒng)的安全可靠運(yùn)行帶來極大的風(fēng)險(xiǎn)。這類故...
基于Metso DNA技術(shù)的DCS
基于Metso DNA技術(shù)的DCS Metso Automation 將為新電站提供1 套基于MetsoDNA技術(shù)的全套DCS系統(tǒng)。 ...
校準(zhǔn)偏置注冊(cè)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 標(biāo)簽：DS2761 1177
估算DS2715 NiMH電池充電器的開關(guān)速度
摘要：DS2715電池充電器的開關(guān)速度因充電模式、電感選擇和電池電壓而有所不同。某些情況下，需要了解各種條件下的開關(guān)速度,以解決噪聲靈敏度、峰值充電電流和電感選擇限制等...
2009-04-30 標(biāo)簽：DS2715 1497
簡(jiǎn)化鋰離子(Li+)電池充電器測(cè)試
摘要：由于Li+電池充電器的充電過程會(huì)持續(xù)一個(gè)小時(shí)甚至更長的時(shí)間，利用實(shí)際負(fù)載(即電池)對(duì)充電器進(jìn)行測(cè)試將非常耗時(shí)。本應(yīng)用筆記介紹了一種簡(jiǎn)單的Li+電池仿真方法，與采用實(shí)...
2009-04-30 標(biāo)簽： 991
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, ...
能源管理的小型便攜式系統(tǒng)-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 標(biāo)簽：能源管理 3226
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 標(biāo)簽：MOSFET 1410
電荷泵電壓分配器的性能-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 標(biāo)簽：分配器 1306
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 標(biāo)簽：regulator 1589
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 標(biāo)簽：MAX1864 889
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 標(biāo)簽：MAX1802 1142
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 標(biāo)簽：MAX1864 1076
接口的DS2760 1線高精度鋰離子電池監(jiān)控和保護(hù)IC在單片
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...
模擬集成電路的低電壓系統(tǒng)-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 標(biāo)簽：集成電路 1128
盡量減少短路電流脈沖的熱插拔控制器-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 ...
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 標(biāo)簽：Power-Line 1135
隔離式電源電信應(yīng)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...
規(guī)格與測(cè)量機(jī)振蕩器噪聲集成電路基站混頻器-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 標(biāo)簽：振蕩器 751
簡(jiǎn)單電力場(chǎng)效應(yīng)管驅(qū)動(dòng)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 標(biāo)簽：驅(qū)動(dòng)器 946
CCFL推挽式緩沖電路
摘要：DS3984, DS3988, DS3881, DS3882, DS3992和DS3994為冷陰極熒光燈(CCFL)控制器，它們使用推挽結(jié)構(gòu)來產(chǎn)生驅(qū)動(dòng)熒光燈所需的高壓交流波形。在推挽式驅(qū)動(dòng)器中，升壓變壓器的寄生電感與n溝...
2009-04-29 標(biāo)簽：CCFL 2785
修改MAX2010電路使其工作在450MHz
摘要：本應(yīng)用筆記說明如何對(duì)MAX2010 (可調(diào)節(jié)RF預(yù)失真器)標(biāo)準(zhǔn)評(píng)估板進(jìn)行下蓋，使其工作頻率優(yōu)化在450Hz。默認(rèn)情況下，預(yù)失真器工作在500MHz至1000MHz，但是，對(duì)MAX2010評(píng)估板稍做修改，...
2009-04-29 標(biāo)簽：MAX2010 654
修改MAX2010電路使其工作在360MHz
摘要：本應(yīng)用筆記說明如何對(duì)MAX2010 (可調(diào)節(jié)RF預(yù)失真器)標(biāo)準(zhǔn)評(píng)估板進(jìn)行下蓋，使其工作頻率優(yōu)化在360Hz。默認(rèn)情況下，預(yù)失真器工作在500MHz至1100MHz，但是，對(duì)MAX2010評(píng)估板稍做修改，...
2009-04-29 標(biāo)簽：MAX2010 861
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). ...
利用數(shù)字電位器實(shí)現(xiàn)按鍵保持控制
摘要：許多裝置需要一個(gè)用戶接口來調(diào)整溫度、背光強(qiáng)度和電源電壓等，這個(gè)用戶接口需要能夠避免按鍵調(diào)整中的誤操作。若在這些裝置中使用一個(gè)數(shù)字電位器，設(shè)計(jì)人員可以通過...
2009-04-28 標(biāo)簽：電位器 864
半導(dǎo)體數(shù)字電位器：常見問題
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 標(biāo)簽： 905
求戴維等效電路的EPOT基于偏置電阻網(wǎng)絡(luò)
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 標(biāo)簽：EPOT 1090
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