• 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
Document
Document

... Parallel circuits have two big advantages over series circuits. 1. Each device in the circuit has a voltage drop equal to the full battery voltage. 2. Each device in the circuit may be turned off independently without stopping the current in the other devices in the circuit. ...
ADP5033 英文数据手册DataSheet 下载
ADP5033 英文数据手册DataSheet 下载

... rejection greater than 60 dB for frequencies as high as 10 kHz while operating with a low headroom voltage. ...
General Specifications Model UT150L Limit Controller
General Specifications Model UT150L Limit Controller

... Normal mode noise: Min. 40dB (50/60Hz) Common mode noise: Min. 120dB (Min. 90dB for DC V input) Error of reference junction compensation: ±1.5°C (at 15-35°C) ±2.0°C (at 0-50°C) The reference junction compensation cannot be switched off. Applicable standards: Thermocouple and resistance temperature d ...
UPS-1500-S-1U
UPS-1500-S-1U

RF2173 - RFMD.com
RF2173 - RFMD.com

IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

Q01413601365
Q01413601365

... and M1 are turned on. V1 can be chosen from 0V to a certain value such that the reflected voltage across L0 will not cause reverse current to flow through M1 when S1 is on. When the output current decreases in a fast a large step the operations are similar the mechanisms so described. At that time S ...
BH4201396402
BH4201396402

KSD140 8 NPN Epitaxial Silicon Transistor Absolute Maximum Ratings
KSD140 8 NPN Epitaxial Silicon Transistor Absolute Maximum Ratings

... or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. ...
MAX77231 2.75V to 4.8V Input, 10mA Output, 35µVRMS Ultra
MAX77231 2.75V to 4.8V Input, 10mA Output, 35µVRMS Ultra

... by a current-limited, maximum on-time, minimum offtime, PFM boost converter. When the output drops below 11.7V, an internal NMOS switch forces the input voltage across the inductor. The switch turns off when the inductor current reaches 350mA, and the LX pin is driven high by the inductor until the ...
IFDR Scope and Requirement Comments
IFDR Scope and Requirement Comments

... needing assistance to apply the IFDR Scope and Requirements Criteria in below to a specific low voltage lighting product can contact UL. The scope of IFDR might change before 2007. If this happens, the IFDR Scope and Requirements Criteria below will also change. The latest scope for the IFDR categor ...
T. Nussbaumer, G. Gong, M. L. Heldwein, J. W. Kolar
T. Nussbaumer, G. Gong, M. L. Heldwein, J. W. Kolar

RHD5903 - Aeroflex Microelectronic Solutions
RHD5903 - Aeroflex Microelectronic Solutions

... The RHD5903 is a radiation hardened, single supply, differential output, quad operational amplifier with enable in a 20-pin SOIC package. The RHD5903 design uses specific circuit topology and layout methods to mitigate total ionizing dose effects and single event latchup. These characteristics make ...
221 Advanced electrical principles
221 Advanced electrical principles

NTE74LS196 Integrated Circuit TTL − Presettable
NTE74LS196 Integrated Circuit TTL − Presettable

... a divide−by−two and a divide−by−five counter. This device is fully programmable; that is, the outputs may be preset to any state by placing a low on the count/load input and entering the desired data at the data inputs. The outputs will change to agree with the data inputs independent of the state o ...
Noise Sources English
Noise Sources English

... remote control for switching the signal on/off. To optimise the power where it is needed a unique built in equalization network compensates for the falling frequency response of the speaker system in both the low and high frequency areas. A part of the amplifiers input stage is a high pass filter th ...
PTC-04 Datasheet
PTC-04 Datasheet

... The PTC-04 programmer was designed for efficient, precise calibration of the Melexis families of programmable ICs. The programmer is designed to be easily adapted to a standard PC and to an application module to allow calibration of programmable sensor ICs within the operating environment. The PTC-0 ...
Data sheet
Data sheet

... downtime caused by EMI and increase its performance and productivity by providing clean power to your sensitive tools. ...
EQUAD Up/Down Clock to Quadrature Encoder
EQUAD Up/Down Clock to Quadrature Encoder

MIC79110 - Microchip
MIC79110 - Microchip

... charge with the second stage taking twice as long as the first stage. Some chargers claim to be fast chargers by skipping the second stage and just charges the battery until the cell voltage is reached. This only charges the battery to 70% capacity. An increase in the charge current during stage 1 d ...
Materials
Materials

PGA203 数据资料 dataSheet 下载
PGA203 数据资料 dataSheet 下载

... the best performance. In some applications, mismatched source impedances may be required. If the impedance in the negative input exceeds that in the positive input, stray capacitance from the output will create a net negative feedback and improve the stability of the circuit. If, however, the impeda ...
Preliminary Datasheet
Preliminary Datasheet

... constant frequency, current mode control scheme to provide excellent line and load regulation. Operation can be best understood by referring to Figure 3 and Figure 17. At the start of each oscillator cycle, switch Q1 turns on. The switch current will increase linearly. The voltage on sense resistor ...
M81713FP HVIC High Voltage Half-Bridge Driver 600V +/
M81713FP HVIC High Voltage Half-Bridge Driver 600V +/

... removed following an “L” state of the IN signal, and then HO responds to the input. ...
COMBOLIGHT Remodel Recessed w/ Trim - 12V AR70 - 4 Light Square
COMBOLIGHT Remodel Recessed w/ Trim - 12V AR70 - 4 Light Square

... C.... Junction Box Junction Box is UL listed for through branch wiring, 6 #12 90º C supply conductors or 60º C for end of run. The fixture is also UL listed as ‘access above ceiling not required’. ...
< 1 ... 1956 1957 1958 1959 1960 1961 1962 1963 1964 ... 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