• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
crystal-controlled
crystal-controlled

... Oscillators With LC Feedback Circuits For frequencies above 1 MHz, LC feedback oscillators are used. We will discuss the Colpitts, Hartley and crystalcontrolled oscillators. BJT amplifier can usually obtain higher oscillating frequency than using standard operational amplifier. In this case the hig ...
Setting up the stick pots for the Phil_G proportional encoders:
Setting up the stick pots for the Phil_G proportional encoders:

... Some manufacturers provide reversing by swapping the outer pot connections with a change-over switch, which means that neutral-stick must be set to exactly half-travel on the pot track. Most commonly the pots are 5k, so in this case, at neutral the wiper would be exactly 2.5k ohms from either end, a ...
Power Issues in Embedded Systems
Power Issues in Embedded Systems

... System level power management Heuristics for transiting between various power modes Operating environment sensitive power ...
SN74SSTV32877 数据资料 dataSheet 下载
SN74SSTV32877 数据资料 dataSheet 下载

... B. ICC tested with clock and data inputs held at VCC or GND, and IO = 0 mA. C. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when di ...
AND8040/D Phase Lock Loop General Operations
AND8040/D Phase Lock Loop General Operations

... the out−of−lock and near−out−of−lock envelope extremes. Any loss in loop gain will in general cause a decrease in ...
document
document

... solving RDEs [12] which describe the statistical behavior of the circuits. Given the mean () and standard deviation () of process variations and/or input waveforms at every time point, the proposed simulation method calculate the (t), (t) and covariance of output voltages and probability density ...
A New Topology for Multilevel Current Source Converters Ebrahim Babaei Seyed Hossein Hosseini
A New Topology for Multilevel Current Source Converters Ebrahim Babaei Seyed Hossein Hosseini

... increase. The structure of these multilevel converters places the switches in series to share the duty of blocking these higher voltages. Equally, however, for high current applications, many switches can be placed in parallel, with their ...
Experiment
Experiment

... operation is required. Besides observing the changes that occur in an electrical signal when various control knobs are turned, measurements of peat-to-peak voltages, frequencies, and DC voltages will be made. Diagram The main component of the oscilloscope is the cathode ray tube (CRT) on whose scree ...
Power supply of lighting circuits
Power supply of lighting circuits

... A converter is required for a line power supply. The advantage of LEDs is their low energy consumption. As a result, they operate at a very low temperature, giving them a very long service life. Conversely, a simple diode has a weak light intensity. A high-power lighting installation therefore requi ...
power distribution equipment
power distribution equipment

... Power Equipment Centers TAW custom power equipment centers (PEC’s) set the industry standard for quality and durability. Climate controlled PEC’s are manufactured from your choice of durable, powder-coated, galvanized steel, marine grade aluminum or stainless steel. Their combination of durability a ...
MAX987/MAX988/MAX991/MAX992/MAX995/MAX996 High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators ________________General Description
MAX987/MAX988/MAX991/MAX992/MAX995/MAX996 High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators ________________General Description

... Input bias current is typically 1.0pA, and input offset voltage is typically 0.5mV. Internal hysteresis ensures clean output switching, even with slow-moving input signals. The output stage’s unique design limits supply-current surges while switching, virtually eliminating the supply glitches typica ...
4-16v - Universal Air Products
4-16v - Universal Air Products

... be powered by a single, solid state power supply. Each power supply shall incorporate a single, copper wound transformer as manufactured by Universal Air Products. Each transformer shall require 120VAC, single phase, 60 Hz primary voltage and deliver 7200-8800 volts AC capable to 5.0 mA. Transformer ...
LM50
LM50

... The LM50 handles capacitive loading very well. Without any special precautions, the LM50 can drive any capacitive load. The LM50 has a nominal 2 kX output impedance (as can be seen in the block diagram). The temperature coefficient of the output resistors is around 1300 ppm/§ C. Taking into account ...
vega heatsink slide dimmer
vega heatsink slide dimmer

... the wallplate. It also includes a power-failure memory. If power is interrupted and then returns, lights will come back on to the same level set prior to the power interruption. The dimmer is designed to withstand voltage and current surges in accordance with ANSI/IEEE std. C62.41-1980. The dimmer i ...
Weston 4 Interim Relay Requirements
Weston 4 Interim Relay Requirements

... have black start plans to restore power after a major outage, it is never a good thing to have to resort to these strategies. Even if studies and research show that hundreds of transformers will not be damaged during a solar storm, an uncontrolled widespread outage of the transmission system would s ...
Smart Energy Metering System
Smart Energy Metering System

... 2. Associate Professor, Department of Electronics and Telecommunication Engineering Prof. Ram Meghe College of Engineering and Technology and Research Badnera Amravati M.H. India Abstract-The objectives of this paper are to develop a system which can transmit the reading of energy meter to the neare ...
DRIVE SYSTEM ENT 271
DRIVE SYSTEM ENT 271

... DC power supply  The power supply is used to reduce and convert the 230 V AC to a 24 ...
Micronote 126 - Lightning Protection for Aircraft per
Micronote 126 - Lightning Protection for Aircraft per

... As stated earlier in this article, most transient voltages across signal lines have attenuation levels above the source impedance that is added by series resistors for circuit impedance matching in the signal loop. For an additional exercise, what would be the performance level for an HSMBJSAC5.0 un ...
CUSTOMER_CODE SMUDE DIVISION_CODE SMUDE
CUSTOMER_CODE SMUDE DIVISION_CODE SMUDE

BD81002MUV
BD81002MUV

... VDD1 will activate. When EN2 is H, VDD2 will activate. When EN3 is High, AVDD・HVLDO・VCOM・VGH・VGL will activate. The control pin is internally pulled down to GND, whereby operating the relevant block in the open state. The Power Good pin (PG1・PG2・PGCP) is designed in an open-drain pattern to use as t ...
practical File
practical File

... armature voltage is kept constant. By decreasing the flux the speed can be increased and vice – versa. Hence the main flux of field control method the flux of a DC motor can be changed by changing field current with help of a shunt field rheostat. Since shunt field current is respectively small shun ...
digital number shooting game
digital number shooting game

... Score counter and scoreboard. This block comprises two decade counter/ decoder/7-segment display driver ICs CD4033 (IC5, IC6), and three common cathode 7-segment LED displays (DIS.2 through DIS.4). The ‘a’ through ‘f ’ segments of DIS.1, meant for units, are directly connected to positive supply rai ...
Remote Power Modules product specifications
Remote Power Modules product specifications

Multipower 204 T - MULTI
Multipower 204 T - MULTI

Powerpoint - University of Toronto Physics
Powerpoint - University of Toronto Physics

... Any two conducting objects separated by an insulator form a capacitor. ...
< 1 ... 1080 1081 1082 1083 1084 1085 1086 1087 1088 ... 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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report