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SN74GTL2003 数据资料 dataSheet 下载
SN74GTL2003 数据资料 dataSheet 下载

... All transistors in the SN74GTL2003 have the same electrical characteristics, and there is minimal deviation from one output to another in voltage or propagation delay. This offers superior matching over discrete transistor voltage-translation solutions where the fabrication of the transistors is not ...
Product Lines Represented in Maine Utility
Product Lines Represented in Maine Utility

...  Padmount load and fault interrupting switchgear designed and approved for interconnection with the utility grid  Reclosers designed to provide overcurrent protection at the interconnection with the utility grid permitting an economical alternative to circuit breakers.  Current limiting protec ...
BDTIC www.BDTIC.com/infineon Electronic Transformer Compatible Step-down Converter for 7W/10W MR16 Lamp with
BDTIC www.BDTIC.com/infineon Electronic Transformer Compatible Step-down Converter for 7W/10W MR16 Lamp with

... Schematic of the demonstration board ........................................................................................................ 6 PCB layout of the demonstration board ....................................................................................................... 6 PCB photo of ...
wireless direction sensor for digital notice board
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... User defeatable clip limiters and selectable low-frequency filter (5, 30, or 50 Hz) 1/4" TRS*, XLR, and 3-pin detachable terminal block input connectors Neutrik Speakon and "Touch Proof" binding post outputs "Locking" IEC power cable remains secure on the road Personalized badging available ...
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Powering Trends and Issues for IP Telephony over CATV

... connection. Standby power supplies offer a solution to these problems. Standby power supplies use batteries to provide CATV powering waveforms which are completely unaffected by utility outages, yet in normal operation these power supplies operate with the same high efficiency as a non-standby power ...
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RANGER COLLEGE Syllabus Fall 2010 COURSE NUMBER AND

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... meter under test is high. The driving system of the meter consists of current coil connected in series with load and shunt coil connected in parallel to the supply. The moving system consists of a non-magnetic material and light material i.e aluminum disc. This disc is positioned in the air gap betw ...
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Dual Precision, Low Cost, High Speed BiFET Op Amp AD712

... The combination of excellent noise performance and low input current also make the AD712 useful for photo diode preamps. Common-mode rejection of 88 dB and open-loop gain of 400 V/mV ensure 12-bit performance even in high speed unity-gain buffer circuits. The AD712 is pinned out in a standard op amp ...
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... where it precharges that cell with 10% of the user-programmed fast-charge current. The CHG indicator is driven low to indicate entry into the prequalification state. When the battery voltage exceeds 2.5V, the IC softstarts as it enters the fast-charge stage. The fastcharge current level is programme ...
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... • Shell sizes 25 and larger; allowing more options to carry higher power for your applications. • Comes standard with over-molded coupling nuts which provide extra durability and grip. Incorporates MIL-DTL-5015 Series inserts and backshell accessories • Available in familiar 5015 patterns as well ...
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TR-710 - Jotron

... This is the standard mode for the transceiver. In this mode the menu wheel automatically adjust the volume and when it is operated the display gives a graphical volume indication. The display returns to the standard screen after a break of more than two seconds. A push on the menu wheel gives the sq ...
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... the amplifier on the circuit board can lead to noise coupling on the inputs due to thermal noise, high frequency signals, or high currents that induce magnetic current coupling. Many of Texas Instruments’ current shunt monitors have a typical CMRR as high as 140dB, including the INA226, INA210, and ...
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Aalborg Universitet

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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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