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Common-Source Amplifier Stage
Common-Source Amplifier Stage

... 5.5, Veffn ≈ 0.5 V, VDS ≈ 2.5 V , and VDD = 5 V . The plus and minus signal-voltage limits are about 2.5 V and 2.0 V, respectively. Depending on the dc bias, the limit could be dictated by one or the other. In the amplifier projects, the gain will typically be measured over a range of dc bias curren ...
electricity learning statements and extra questions
electricity learning statements and extra questions

... In this section you will find out about some rules which control the design of electric circuits and investigate some circuits used in cars and at home. You will also learn how to test for electrical faults. At General level, by the end of this section you should be able to:  1. State a practical e ...
Get cached
Get cached

... The THD in Figure 2.5 also follows a similar pattern since it is most affected by the lower order harmonics and becomes one-one hundredth of its original value after just one half second, or thirty iterations. Figure 2.6 shows the weighting coefficients of the sine and cosine for the first three off ...
a Complete 14-Bit CCD/CIS Signal Processor AD9814
a Complete 14-Bit CCD/CIS Signal Processor AD9814

... imaging applications. It features a 3-channel architecture designed to sample and condition the outputs of trilinear color CCD arrays. Each channel consists of an input clamp, Correlated Double Sampler (CDS), offset DAC and Programmable Gain Amplifier (PGA), multiplexed to a high performance 14bit A ...
Asian Power Electronics Journal
Asian Power Electronics Journal

... The principal function of the inverters is to generate an AC voltage from a DC source voltage. If the DC voltage sources connected in series, it becomes possible to generate an output voltage with several steps. Multilevel inverters include an arrangement of semiconductors and DC voltage sources req ...
74VHC4046 CMOS Phase Lock Loop
74VHC4046 CMOS Phase Lock Loop

generator protection
generator protection

... generator. Out-of-Step Protection With modern generators having large Xd and EHV transmission having low reactance, it is likely that the electrical center, a consequence of out-of step condition would be within the generator step-up transformer unit. To detect this condition, distance relay looking ...
LTC1731-4.1/LTC1731-4.2 - Single Cell Lithium
LTC1731-4.1/LTC1731-4.2 - Single Cell Lithium

... The LTC1731 is a linear battery charger controller for single cell lithium-ion batteries. The charge current is programmed by the combination of a program resistor (RPROG) from the PROG pin to ground and a sense resistor (RSENSE) between the VCC and SENSE pins. RPROG sets a program current through a ...
Single-electron winner-take-all macro block for large
Single-electron winner-take-all macro block for large

AD9755 数据手册DataSheet 下载
AD9755 数据手册DataSheet 下载

... a single data interface port DAC. The digital interface consists of two buffered latches as well as control logic. These latches can be time multiplexed to the high speed DAC in several ways. This PLL drives the DAC latch at twice the speed of the externally applied clock and is able to interleave t ...
1. INTRODUCTION
1. INTRODUCTION

74VHC4046 CMOS Phase Lock Loop
74VHC4046 CMOS Phase Lock Loop

NBB-402 CASCADABLE BROADBAND GaAs MMIC AMPLIFIER DC TO 8GHz Features
NBB-402 CASCADABLE BROADBAND GaAs MMIC AMPLIFIER DC TO 8GHz Features

... Care should also be taken in the resistor selection to ensure that the current into the part never exceeds maximum datasheet operating current over the planned operating temperature. This means that a resistor between the supply and this pin is always required, even if a supply near 5.0V is availabl ...
measurement accuracy of short-circuit loop impedance in
measurement accuracy of short-circuit loop impedance in

... From the point of view of their sensitivity to supply voltage changes in particular distortion of the voltage waveform, the known classical methods can be divided into two groups, which are characterised by different properties. The first group includes impedance measuring techniques where the measu ...
PassPoint PTDCM Door Control Module
PassPoint PTDCM Door Control Module

... relay output is energized when allowing entry or exit through an access point. DCM relays cannot be commanded ON or OFF when used as a committed resource. Instead, the access point these relays are assigned to must be bypassed or locked. The relay output circuitry provides for a supervision input (3 ...
Optimal adaptive estimation algorithm for harmonic
Optimal adaptive estimation algorithm for harmonic

AN117 - DC/DC uModule Regulator Printed Circuit Board Design Guidelines
AN117 - DC/DC uModule Regulator Printed Circuit Board Design Guidelines

(with R 2 and R 3 )?
(with R 2 and R 3 )?

63A, 600V, UFS Series N-Channel IGBT with Anti-Parallel
63A, 600V, UFS Series N-Channel IGBT with Anti-Parallel

Aalborg Universitet Generators of Modern Wind Turbines Chen, Zhe
Aalborg Universitet Generators of Modern Wind Turbines Chen, Zhe

CDP68HC68W1
CDP68HC68W1

... VSS (ground). CLK The CLK pin is an input only pin where the clock signal to be altered by the PWM circuitry is supplied. This is the source of the PWM output. This input frequency can be internally divided by either one or two, depending on the state of the CD bit in the control register. ...
The transistor we will be using for this lab is BFR92A, a
The transistor we will be using for this lab is BFR92A, a

... at fo, hence the name NRO. We then proceed to design a reactive circuit, called the resonator. The resistance and reactance of the resonator must be such that R1+Rres < 0 and X1 + Xres = 0 at f o. In this way when the resonator is connected to the destabilized amplifier input, the circuit will (note ...
3622
3622

... terminals on the front panel. The Sense terminals can remotely sample the power supply’s voltage. The positive and negative terminals of each output can be grounded, or kept a certain voltage with the chassis ground. But voltage between each output and the chassis ground should be kept within ±240 V ...
document
document

NEMA Evaluating Water damaged Electrical Equipment
NEMA Evaluating Water damaged Electrical Equipment

... these units will be impaired. Similarly, the functionality of electronic protective relays and meters can be impaired. See section 4.11 for additional information on electronic components. Water may affect the filler material of fuses and will degrade the insulation and interruption capabilities. Lo ...
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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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