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IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,

... power converters are used for two major tasks. First, to ensure that the PV arrays are operated at the maximum power point (MPPT) [2-7]. Second, to inject a sinusoidal current into the grid. Normally there are two power converters [8]. The first one is a DC/DC power converter. that is used to operat ...
SA604A High performance low power FM IF system Philips Semiconductors
SA604A High performance low power FM IF system Philips Semiconductors

... detector. It is a multiplier cell similar to a mixer stage. Instead of mixing two different frequencies, it mixes two signals of common frequency but different phase. Internal to the device, a constant amplitude (limited) signal is differentially applied to the lower port of the multiplier. The same ...
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... The current through the resistor will increase B. The current through the resistor will decrease C. The current of the resistor does not change A. ...
IEEE 802.3af PoE High Power PD Controller
IEEE 802.3af PoE High Power PD Controller

PENTEK XE-6, XE-8 PENTEK
PENTEK XE-6, XE-8 PENTEK

... NOTE: The minimum frequency for the 100-125hp, 4 pole, 10” Hitachi is 55 Hz. 5). Maximum Ramp-down Time: 4.0 seconds from minimum frequency to power shut-off. 6). Service Factor for all motors without prior factory consultation is 1.0. ...
HMC440QS16G 数据资料DataSheet下载
HMC440QS16G 数据资料DataSheet下载

... The 5-Bit programmable counter counts-down from the programmed value of the data bits to zero and issues an output pulse at the end of each cycle. Settling time of the programmable 5-Bit counter is defined as the maximum time required for the counter to change the division ratio N to a new value aft ...
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... Hence, in this paper, we propose an alternative configuration for digitally controlled parallel connected converters. Following the philosophy of distributed computing, we use n sets of DSP to control n power converters in parallel. This forms a decentralized system, whereby each power converters is ...
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Part I - Amplitude Modulation

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... (β, C, r, etc.). Consequently, we can treat the transistor as a ...
MAX16946 Evaluation Kit Evaluates: General Description Features
MAX16946 Evaluation Kit Evaluates: General Description Features

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ADM2582E 数据手册DataSheet 下载

... combine a 3-channel isolator, a three-state differential line driver, a differential input receiver, and Analog Devices isoPower dc-todc converter into a single package. The devices are powered by a single 5 V or 3.3 V supply, realizing a fully integrated signal and power isolated RS-485 solution. ...
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L1 THE GEIGER COUNTER

... discharge proceeds a positively charged sheath forms around the wire. This has the effect of reducing' the field around the wire to a value below that corresponding to the threshold voltage, and the discharge ceases. The positive ion sheath then moves outwards until the critical radius r is reached, ...
Name:
Name:

... 2. Consider your voltmeter graph. (a) Does the slope of the voltmeter best-fit line differ from one? _____________________ If the answer should be “yes” in (a), please do the following analysis/answer the following questions. (b) Are your voltages reading less than or more than they should be? ____ ...
PS Systems EB100S Midi Tube Guitar Amplifier Proof of Existence I
PS Systems EB100S Midi Tube Guitar Amplifier Proof of Existence I

... tone controls, effects loops, line out, headphone output and a mono 50 watt solid state amp. The emulator/load section are replicated here with all other functions expanded upon. Active Programmable Tone Controls The standard tone control circuit is a three band active circuit with a +/- 18dB range. ...
if on the Internet, Press  on your browser to
if on the Internet, Press on your browser to

MAX9179 Quad LVDS Receiver with Hysteresis General Description Features
MAX9179 Quad LVDS Receiver with Hysteresis General Description Features

... internal resistor in the fail-safe circuit pulls both inputs above VCC - 0.3V, activating the fail-safe circuit and forcing the output high (Figure 2). ...
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Prodrive Technologies / Cree Dual 1200
Prodrive Technologies / Cree Dual 1200

VIPer12ADIP VIPer12AS LOW POWER OFF LINE SMPS PRIMARY SWITCHER
VIPer12ADIP VIPer12AS LOW POWER OFF LINE SMPS PRIMARY SWITCHER

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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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