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74LS221
74LS221

Electron emission from lead–zirconate–titanate ceramics
Electron emission from lead–zirconate–titanate ceramics

... ceramic used in this simulation are identical with these used in Ref. 6 to simulate the performance when both voltages ~V fe , V an! were applied simultaneously. Experiments confirmed the ‘‘cutoff’’ in the diode current beyond delays of 2.5 ms. Figure 5 shows the anode current for various delays at ...
Plug and Receptacle Basics for Eaton ePDUs
Plug and Receptacle Basics for Eaton ePDUs

... accepting voltages between 100-250 Vac most likely has a detachable cord with a fixed, recessed C14 or C20 plug on the UPS as shown in Figure 4. The true advantage of 100-250 Vac power supplies is that equipment does not need to have multiple designs for specific markets. Instead, models shipped to ...
CHAPTER III Data Collection and programming
CHAPTER III Data Collection and programming

... Integrated circuits (ICs) have a significant impact in everyday life. For decades ICs have been getting smaller and more powerful. Instrumentation and processors that used to be the size of a toaster oven can now be contained on a single IC measuring no more than a few square millimeters. This skyro ...
NB6L11S - 2.5 V 1:2 AnyLevel Input to LVDS Fanout Buffer / Translator
NB6L11S - 2.5 V 1:2 AnyLevel Input to LVDS Fanout Buffer / Translator

... NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared operating temperature range. Functiona ...
NorthStar Application Manual
NorthStar Application Manual

... important being (i) the purity of the materials used during construction, and (ii) the storage temperature. As NSB batteries are manufactured from the highest purity components, they have one of the lowest selfdischarge rates in the industry. As the rate of self discharge increases with temperature, ...
SKY65120-21 数据资料DataSheet下载
SKY65120-21 数据资料DataSheet下载

... Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. ...
EMT 112 Self Reading - Power Amplifiers
EMT 112 Self Reading - Power Amplifiers

AD8313 数据手册DataSheet 下载
AD8313 数据手册DataSheet 下载

... The AD8313 maintains a high degree of log conformance for signal frequencies from 0.1 GHz to 2.5 GHz and is useful over the range of 10 MHz to 3.5 GHz. The nominal input dynamic range is –65 dBm to 0 dBm (re: 50 Ω), and the sensitivity can be increased by 6 dB or more with a narrow-band input impeda ...
NCP1351ADAPGEVB NCP1351 57 W Adapter Evaluation Board User's Manual
NCP1351ADAPGEVB NCP1351 57 W Adapter Evaluation Board User's Manual

... The split VCC configuration helps to start−up in a small period of time (CVCC to charge alone) but the addition of a second, larger capacitor (Cres), ensures enough VCC in standby. The primary−side feedback current is fixed to roughly 300ĂmA via R5 and an additional bias is provided for the TL431. 1 ...
ATLAS Project Document
ATLAS Project Document

... cutting each tape is labelled with a bar-code sticker, which is then read by the tester. The test runs on a custom test set-up including a Keithley 2000 multimeter, connected via GPIB to a PC, and a switching matrix. Each layer of the tape is connected in a test jig. The test checks line resistance ...
Press Release
Press Release

... power reserve. This prevents the arc from breaking for example. Because the “technically controlled inner life” of a welding system with resonant intelligence is very complex, this technology was previously only available for single-phase TransPocket 1500. Now Fronius developers have it solved, and ...
Cough Simulating Device, Dual Function with VEST
Cough Simulating Device, Dual Function with VEST

... = D '$ Three Preset COMFORTCOUGH® Plus can be memorized three kinds of values prior to the use and also remained as empty space. ...
Flicker Noise in GaN/Al Ga N Doped Channel Heterostructure Field
Flicker Noise in GaN/Al Ga N Doped Channel Heterostructure Field

Pdf - Text of NPTEL IIT Video Lectures
Pdf - Text of NPTEL IIT Video Lectures

... the transformer. In order to do the no load test the variac is started from zero voltage position, then the power is applied; the voltage supplied by the variac is slowly raised till the voltmeter connected on the other side reads the rated voltage of this side. Under that condition you take the re ...
SP485 数据资料DataSheet下载
SP485 数据资料DataSheet下载

... EXAR Corporation reserves the right to make changes to any products contained in this publication in order to improve design, performance or reliability. EXAR Corporation assumes no representation that the circuits are free of patent infringement. Charts and schedules contained herein are only for i ...
High Performance VLSI Design Using Body Biasing in Domino
High Performance VLSI Design Using Body Biasing in Domino

Utility Static Var Compensator (SVC)
Utility Static Var Compensator (SVC)

Optimal DC Power Distribution System Design for Data Center with
Optimal DC Power Distribution System Design for Data Center with



... for optimal solutions requiring precise backlighting of complex contours. There are currently three versions of the LINEARlight FLEX modules, TOPLED“, SIDELED“ and POWER FLEX. The TOPLED and POWER FLEX modules offer direct lighting that emits from the top of the module. The SIDELED module emits ligh ...
A1369 - Allegro Microsystems
A1369 - Allegro Microsystems

MicroControlWhitePaper
MicroControlWhitePaper

... Because it is software driven, the switching times are controlled by the designer. Current and voltage spikes can be eliminated by choosing switch times efficiently. This allows the use of lower voltage rated drivers, which provide low ON resistance that minimizes voltage drops and thus lowers power ...
Full Text - AIRCC Journals
Full Text - AIRCC Journals

50a62-820 white-rodgers
50a62-820 white-rodgers

... thermostat contacts. This starts the 50A62 control’s heating sequence. The inducer blower and humidifier are energized (if there is an optional electronic air cleaner on the system, the humidifier is not energized until the electronic air cleaner is energized). The 768A Silicon Nitride ignitor is po ...
CC-432 uhf Receiving Converter
CC-432 uhf Receiving Converter

... can pretin the isolated pads for all of the chip capacitors and resistors now, but install only one value at a time.) Pick up one part at a time, removing it carefully from its carrier strip by peeling back the tape with a knife or diagonal cutters. Set the part in place. Then heat the solder on the ...
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Buck converter



A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.
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