• 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
LIGHT EMITTING DIODE CHARACTERISTICS (SAMPLE LAB WRITEUP) Be sure the title block
LIGHT EMITTING DIODE CHARACTERISTICS (SAMPLE LAB WRITEUP) Be sure the title block

Arrester Reference Voltage
Arrester Reference Voltage

... considerable power and is not considered a long term operation. TOV: The Temporary Overvoltage section starts just above the knee of the curve and in fact includes the Vref point. It can extend up to 10s of amps. There is no generally defined upper end of this region. During a TOV event such as a vo ...
NCP803 Very Low Supply Current 3−Pin Microprocessor Reset
NCP803 Very Low Supply Current 3−Pin Microprocessor Reset

865 Manual
865 Manual

... The Models 865 and 866 are handheld digital thermometers. Both instruments have large, easy to read, liquid crystal displays (LCD). The input connection for each instrument consists of a 1/4 inch phone jack. This input accommodates any one of the available accessory thermistor based probes and senso ...
Apex Pro User Manual
Apex Pro User Manual

... battery power. When the light is turned on again, it will resume functioning. Low Battery Signaling During Use In addition to displaying red on the battery power meter, when there are approximately 20 minutes of run time remaining, the Apex Pro will blink three times in rapid succession. You can the ...
LTC3554/LTC3554-1/LTC3554-2/LTC3554-3
LTC3554/LTC3554-1/LTC3554-2/LTC3554-3

... Li-Ion/Polymer battery applications. They include a PowerPath™ manager with automatic load prioritization, a battery charger, an ideal diode and numerous internal protection features. Designed specifically for USB applications, the LTC3554 power managers automatically limit input current to a maximu ...
Resistors
Resistors

... Insulators are materials such as glass, plastic or the space between two parts of a wire after you have removed a resistor or light bulb (open circuit). The ideal insulator has a resistance of infinity. Recall that Ohm’s Law is I = ∆V/R . Will an open circuit result in: 1. current of zero 2. potenti ...
IET 114 Basic Electricity
IET 114 Basic Electricity

... This course provides an introduction to direct current (DC) and alternating current (AC) electrical theory. Topics include atomic theory, magnetism, properties of conductors and insulators, and characteristics of series, parallel, and series-parallel circuits. Inductors and capacitors are introduced ...
PDF VERSION click here
PDF VERSION click here

Three Phase User Manual 16.7 - 50kVA
Three Phase User Manual 16.7 - 50kVA

... based DC to AC power inverter utilizing IGBT technology. It integrates a fully automatic 3rate battery charger, a solid-state transfer system, control circuitry, self testing and recording digital meter display, and maintenance free sealed lead calcium type batteries. The system components are caref ...
SQF – thermal protected power resistor from Ty
SQF – thermal protected power resistor from Ty

... quick switching-on of an electronic device which has just been switched off, there is a risk that e.g. the rectifier diodes are damaged or the power fuse may blow. A component which is used on the AC-side of the power supply should be robust against transient overvoltages. However, a NTC is not spec ...
4.0 - Electrical Principles
4.0 - Electrical Principles

... impedance of a network consisting of a 400ohm-reactance inductor in parallel with a 300ohm resistor? A. 240 ohms at an angle of 36.9 degrees B. 240 ohms at an angle of -36.9 degrees C. 500 ohms at an angle of 53.1 degrees D. 500 ohms at an angle of -53.1 degrees The circuit is inductive since there ...
Design Support
Design Support

... HSPICE ...
AD8195 数据手册DataSheet 下载
AD8195 数据手册DataSheet 下载

... The maximum power that can be safely dissipated by the AD8195 is limited by the associated rise in junction temperature. The maximum safe junction temperature for plastic encapsulated devices is determined by the glass transition temperature of the plastic, approximately 150°C. Temporarily exceeding ...
pdf
pdf

... the input-referred noise of the operational amplifier and the must be kept low through appropriate device noise due to sizing and biasing. These details are described in [4]. This paper also describes a biasing scheme for internal currents in that uses strong capacitive the operational amplifier and ...
Electrical Principles Wk 2B
Electrical Principles Wk 2B

... Copper is preferred because it has a lower ...
H-bridge inverter loading analysis for an Energy Management System Metzcus, Andrew James
H-bridge inverter loading analysis for an Energy Management System Metzcus, Andrew James

Notes Ch 17 – Current and Resistance
Notes Ch 17 – Current and Resistance

...  To analyze AC circuits, you use the same basic techniques that you used to analyze DC circuits, but there is an important distinction to note. The direction of current across a resistor has no effect on the behavior of it (electric energy will be converted to heat energy either way current flows), ...
LV_Power_MOSFET - Renesas E
LV_Power_MOSFET - Renesas E

... 5. The fall time, tf, controls the switching loss and tf is computed using formula (3) above. Both QG and QGD are important items when designing for high frequency operation. . For high-speed switching (over FSW=100kHz) applications, the smaller the RON/QG or RON/QGD the more efficiency the MOSFET d ...
DN254 - LT1806: 325MHz Low Noise Rail-to-Rail SOT-23 Op Amp Saves Board Space
DN254 - LT1806: 325MHz Low Noise Rail-to-Rail SOT-23 Op Amp Saves Board Space

... The circuit of Figure 1 shows the LT1806 in an ultralow noise transimpedance amplifier applied to a large-area high capacitance photodiode. The LT1806 is used for its high gain bandwidth and low noise. The IFN147 ultralow noise JFET1 operates at its IDSS (VGS = 0V) with a typical transconductance of ...
isl88731 - ISL88731 - SMBus Level 2 Battery Charger With Remote
isl88731 - ISL88731 - SMBus Level 2 Battery Charger With Remote

... The ISL88731 employs a fixed frequency PWM control architecture with a feed-forward function. The feed-forward function maintains a constant modulator gain of 11 to achieve fast line regulation as the input voltage changes. The duty cycle of the buck regulator is controlled by the lower of the volta ...
AMES Sample
AMES Sample

... 3. How much larger/smaller was the magnitude of the voltage? 4. Since the voltage has been measured with two batteries, make a hypothesis about what would happen if a 3rd battery was added or a 4th battery. 5. Test the hypothesis. Is it true? 6. What conclusions can be made about how to add volt ...
Mathematical modeling and analysis of a Generalized Unified
Mathematical modeling and analysis of a Generalized Unified

Cool-Switch®
Cool-Switch®

... The PI2161 integrated Cool-Switch product takes advantage of two different technologies combining low RDS(on) N-channel MOSFETs with high density control circuitry to provide a high side fast Circuit Breaker solution. The PI2161’s 8.5 mΩ on state resistance MOSFET minimizes the voltage drop, at the ...
THE EXTREME BATTERY CHARGER™
THE EXTREME BATTERY CHARGER™

... Endorsed by EnerSys to charge and maintain their line of Odyssey® Drycell™ batteries – models PC310, PC535, PC545, PC625, PC680, PC925 & PC1200* (and variants) Appropriate for Cyclon® D, X, E, J & BC cells & monoblocs (12-volt packs), and Genesis® models 13EP, 16EP, 26EP, XE13, XE16 & XE30 An excell ...
< 1 ... 1086 1087 1088 1089 1090 1091 1092 1093 1094 ... 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