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Dynamic Voltage Scaling for Commercial FPGAs
Dynamic Voltage Scaling for Commercial FPGAs

... and show how the threshold values described in the previous section can be obtained. We use the Pilchard card [6] in an 800 MHz Pentium III host personal computer (PC) as the hardware platform for the experiments. Pilchard is a reconfigurable computing platform that uses the SDRAM bus instead of the ...
4. I-V characteristics of electric conductors KL
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Physics 151
Physics 151

simple "toneburst" detection circuit
simple "toneburst" detection circuit

university of california at berkeley
university of california at berkeley

... 1. Provide two schematics of the circuit, one with the hand calculated and the other with simulated DC bias voltages and nominal currents. How do the measured values of currents compare with your hand calculations and SPICE simulation? 2. Use your measurements to extract Acm vs. Vin,cm. How do your ...
Datasheet PDF Format
Datasheet PDF Format

... LNB Power from Sat Buddy ...... Uses internal battery voltage 12 to 16 V, current limited at 400 mA. Able to continuously power a typical LNB (100 to 150 mA) for 1.8 hours. Internal Battery Pack ................. Rechargeable 12 cell (1.2 V, 2/3AA NiCd) 320 mAh, 14.4 V nominal. Automatic shut off wh ...
power scan automotive probe/scope 0-30v
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LM1575/LM1575HV/LM2575/LM2575HV Series SIMPLE
LM1575/LM1575HV/LM2575/LM2575HV Series SIMPLE

... excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency os ...
A Diode Psychrometer for Remote Measurement of Screen Dry
A Diode Psychrometer for Remote Measurement of Screen Dry

Apr-May-Jun - Audio by Van Alstine
Apr-May-Jun - Audio by Van Alstine

... The zener diode regulates by maintaining a steady voltage across it. If the supply voltage goes high, the zener conducts harder and drops the voltage, if the supply voltage drops the zener turns off thus raising the voltage. The zener’s limits are its power rating and its voltage rating. Excess curr ...
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ECEN5817L38 - University of Colorado Boulder

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ppt - School of Electrical and Computer Engineering at Georgia Tech

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WaveMotionAndSound

... multiple items at the same time. This is how your electrical outlets are wired. When one light bulb on a circuit burns out all the other lights on the circuit continue to function properly. There are multiple pathways for the electrical current to flow. There are two different types of current, Dire ...
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2.1 Current Voltage Resistance and Power Word Document

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AD22057 数据手册DataSheet 下载

... current. This current is sensed in a small resistor. The average differential voltage across this resistor is typically 100 mV, although its peak value will be higher by an amount that depends on the inductance of the load and the control frequency. The common-mode voltage, on the other hand, extend ...
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... Let‘s construct the gain-frequency characteristic of the RC high-pass filter. Let‘s apply a voltage Vin of a very low frequency to the input of the circuit. If the frequency becomes lower and lower, the input voltage will become a DC voltage. No DC current can pass through the capacitor because ther ...
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... Class A final amplifier is the simplest configuration and also one of the best configurations for high quality audio reproduction and can be implemented using a standard emitter follower. The quiescent current through the transistor is equal to the peak AC output current, which means that the transi ...
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... path. This amplifier is zero-corrected every 100µs using a proprietary technique. Upon power-up, the amplifier requires approximately 400µs to achieve specified VOS accuracy, which includes one full auto-zero cycle of approximately 100µs and the start-up time for the bias circuitry. Prior to this ti ...
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... Then input pin voltage is set to more than VSS. (Note 4) An excessive input current will flow when input voltages of more than VDD+0.6V or less than VSS-0.6V are applied. The input current can be set to less than the rated current by adding a limiting resistor. Caution: Operating the IC over the abs ...
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... Acquisition time (t AQ ) is the amount of time the MAX5166 must remain in sample mode for the hold capacitor to acquire an accurate sample. The holdmode settling time (tH) is the amount of time necessary for the output voltage to settle to its final value. Aperture delay (tAP) is the time interval r ...
FEATURES DESCRIPTION D
FEATURES DESCRIPTION D

... The OPA561 features an over-current status flag (CLS, Pin 9) that can be monitored to see if the load exceeds the current limit. The output signal of the over current limit flag is compatible to standard logic. The CLS signal is referenced to V−. A voltage level of less than (V−) + 0.8V indicates no ...
M430 Digital input module, 32 DI
M430 Digital input module, 32 DI

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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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