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Analog Devices Welcomes Hittite Microwave Corporation
Analog Devices Welcomes Hittite Microwave Corporation

Sikorsky Aircraft - ECE Senior Design
Sikorsky Aircraft - ECE Senior Design

... We’ve decided to move the project to the open source Arduino platform. The switch has several advantages compared to the PCB used by last year’s team. Arduino will give us more flexibility in our design, as the platform offers more connectivity with a greater number of inputs. It has a wide range of ...
icl8038,precision waveform generator.pdf
icl8038,precision waveform generator.pdf

Voltage-Divider Bias
Voltage-Divider Bias

... With a good Q-point established, let’s look at the effect a superimposed ac voltage has on the circuit. Note the collector current swings do not exceed the limits of operation(saturation and cutoff). However, as you might already know, applying too much ac voltage to the base would result in driving ...
Synchronous vs. Aynchronous Buck Regulators - Digi
Synchronous vs. Aynchronous Buck Regulators - Digi

... Advantages and disadvantages of these two topologies The asynchronous topology uses just one MOSFET for the top side as the control switch. There is no socalled shoot-through issue. The IC tends to be smaller and relatively inexpensive. The use of an external diode in most cases eliminates the need ...
MICRO-TRAK 300 MANUAL VER 1.4.1
MICRO-TRAK 300 MANUAL VER 1.4.1

... for your GPS receiver. (Many applications, including the use of the device with hand-held GPS units, will not require the 5 volt output of the Micro-Track.) The entire system runs well on 9-15 volts DC, and draws only about 10 milliamps in standby, and increases to 180 milliamps during transmissions ...
Driving High Power, High Brightness LEDs
Driving High Power, High Brightness LEDs

... a) Output LED driver voltage must be greater than the total VF of the series connected LED b) LED driver constant current output must be higher or equal to the desired LED current. If the current is higher, use PWM dimming or modify the circuit, for example the sense resistor. In general, LED dr ...
Electricity
Electricity

... If the charge takes an amount of time t to pass through the battery, the battery supplies a power of (does work at a rate of) ...
Zener Diode Voltage Regulators
Zener Diode Voltage Regulators

... There is no specific value for IZmin although it is typically taken to be ten percent of IZmax. It is possible that a lower value could be used particularly at Zener voltages greater than around six. This insures that the diode operating current is in the breakdown region and not in the soft transit ...
PQM (Power  Quality  Meter) Features Introduction HC 6030
PQM (Power Quality Meter) Features Introduction HC 6030

LM6165/LM6265/LM6365 High Speed
LM6165/LM6265/LM6365 High Speed

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Performance Evaluation of Fuzzy

... transmission system. The digital simulation is carried out for the two controllers (PI and fuzzy). Both novel controllers' schemes are validated under this condition in order to show their capability in keeping the STATCOM stable for a power system. The digital simulation for the study system shown ...
ha200 : Optoma USA : http://www2.optoma.com/us
ha200 : Optoma USA : http://www2.optoma.com/us

EE135: Homework Set #1. Solutions.winter 2012.
EE135: Homework Set #1. Solutions.winter 2012.

... from 0.05 mm to 5 mm, for a microstrip line fabricated on a 0.7-mm–thick substrate with !r = 9.8. Solution: ...
S-108.4010_Lecture_15.3.2006
S-108.4010_Lecture_15.3.2006

Switching Angles and DC Link Voltages Optimization for Multilevel
Switching Angles and DC Link Voltages Optimization for Multilevel

Zetex - DN78, ZXSC310 with reverse polarity protection
Zetex - DN78, ZXSC310 with reverse polarity protection

IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) ISSN: 2278-1676
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) ISSN: 2278-1676

... In most of the applications inverter is used to control the fundamental voltage magnitude and the frequency of the ac output voltage. AC loads may require constant or adjustable voltage at their input terminals, when such loads are fed by inverters, it is essential that the output voltage of the inv ...
2STA1962
2STA1962

... DC current gain ...
Bip TR 160V, 0.7A VCE(sat); 0.5V max. PNP Single NMP
Bip TR 160V, 0.7A VCE(sat); 0.5V max. PNP Single NMP

... Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpos ...
AD708
AD708

... Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. N ...
DOC
DOC

... protoboard to allow you to quickly make power supply connections. These are often indicated on the protoboard by colored dots or lines which correspond to the color of the connected binding post. Labs 1 and 2 are installed on the computers in the Circuits Lab in Glennan 308. Physical access to the l ...
MX321 AUTOMATIC VOLTAGE REGULATOR (AVR)
MX321 AUTOMATIC VOLTAGE REGULATOR (AVR)

... amount of short circuit current flowing during three phase and single phase short circuits on the generator output. Uncontrolled over excitation is limited to a safe period by internal shutdown of the AVR output device. This condition remains latched until the generator has been stopped. For complet ...
Implementation of Synchronized Triple Bias
Implementation of Synchronized Triple Bias

A 10-bit 50-MS/s sample-and-hold circuit with low distortion sampling switches )
A 10-bit 50-MS/s sample-and-hold circuit with low distortion sampling switches )

< 1 ... 1994 1995 1996 1997 1998 1999 2000 2001 2002 ... 2646 >

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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