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Energy > Impedance
The following information is about Impedance.
Impedance Defined
The opposition to power flow in an AC circuit. Also, any device that introduces such opposition in the form of resistance, reactance, or both. The impedance of a circuit or device is measured as the ratio of voltage to current, where a sinusoidal voltage and current of the same frequency are used for the measurement; it is measured in ohms.
This definition is in context to Energy. See more contextual defintions for Impedance.
ASTID Funds 15 New Projects
Published August 27, 2008, 7:30 pm, SpaceRef
Astrobiology Science and Technology Instrument Development (ASTID) Program this summer approved 15 proposals for funding, including mission concept studies and concept studies for small payloads and satellites.
World's Most Flexible Video Multiplexer Combines Multiformat Video Filtering, Two Universal Sync Separators and ...
Published August 27, 2008, 1:26 pm, Broadcast Newsroom
MILPITAS, CA -- (Marketwire) -- 08/27/08 -- Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high-performance analog semiconductors, today announced the ISL59450 Multiformat Video Multiplexer with Integrated Sync Separator, a device designed for the variety of video signals and formats used today.
Environmental Monitor provides real-time power information.
Published August 27, 2008, 6:02 am, ThomasNet
Providing real-time output voltage and input current monitoring for power control, SMM151/2/3 features I²C interface, non-volatile memory, 256 bytes general-purpose EEPROM memory, and 2 general-purpose voltage comparators. Devices allow input current and differential output voltage monitoring via integrated 10-bit A/D conversion. While SMM151/2 provide output voltage margining with 0.3 V to VDD ...
Center Tap Transformer drives loads up to 2,500 Vdc.
Published August 25, 2008, 5:53 am, ThomasNet
Suited for line and portable medical applications such as defibrillators as well as industrial lasers, 4283-1250 series offers primary-to-secondary isolation of up to 7.5 kVdc. Center-tapped secondary is used for creating both positive and negative outputs, which would drive full wave bridge rectifier, ground in center, positive on one side, negative on other, or could be used as half wave ...
Trusted Resource for the Working RF Engineer
Published August 22, 2008, 8:42 pm, Planet EE
Honolulu, Hawaii is almost synonymous with the terms "vacation" and "rest and relaxation." But for one week in June, it will be the place where thousands of microwave engineers come to work, learn, and perhaps sneak off to one of those sandy beaches for a short break.
M-Audio Studiophile AV20
Published August 22, 2008, 1:10 pm, CNET
M-Audio's Studiophile AV 20 is smaller and cheaper than its larger siblings, but the better form factor comes with sound quality compromises.
Stuff's guide to buying speakers
Published August 22, 2008, 10:18 am, Stuff
A great set of speakers can lift a budget sound system from so-so to wow-wow.
Ovum on MS Visual Studio SP release
Published August 21, 2008, 1:55 pm, CIOL
UK: Microsoft's release of the first service pack of Visual Studio 2008 adds significant new features for data-driven web applications. Among them is enhanced support for RESTful-style data services, and new simplified templates for rapidly building data-driven websites.
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Off-site Impedance Links, User Submitted
The following links have been collected through user bookmark submission in the Impedance category. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
Tue Aug 26
- Reduced Termination Loss by Active Synthesis of Output Impedance - Maxim
- Variable Amplifier Impedance
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Fri Aug 15
- Weight Loss - Body fat vs your Weight: Learn the important difference between your body fat and your bone,muscle and vital organs. Knowing your body fat is vital to tracking your weight loss.
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Off-site Impedance Research Links
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