Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Switched Mode Power Supply (SMPS)
Switching mode power supply converts an unregulated DC voltage to a regulated DC output voltage . SMPS stands for switched mode power supply. A switched mode power supply is a power supply that provides the use of switches that are in one of two states, ON of OFF. In such a device power handling electronic components are continuously switching ON or OFF with high frequency in order to provide the transfer of electric energy via energy storage components. The advantage of switched mode power supply is that the switch dissipates very little power in either of these two and power conversion can be accomplished with minimum power loss and high efficiency. Because of the critical nature of power supplies in all equipment this approach improves both performance and reliability of the total system at no additional cost.
A switch mode power supply circuit is versatile. It can be used to produce multiple dc outputs using a circuit such as the fly back converter to step down an unregulated dc input voltage to produce a regulated c output voltage using a circuit known as buck converter or step down SMPS to step up an unregulated dc input voltage to produce a regulated dc output voltage suing a circuit known as boost converter or step up SMPS, to step up or step done an invert the input dc voltage and to switch mode power supply is a widely used circuit nowadays and it is used in as system such as a computer television receiver battery charger etc. The switching frequency is usually above 20KHz so that the noise produced by it is above the audio range. It is also used to provide a variable dc voltage to armature of a dc motor in a variable speed drive. It is used in a high frequency unity power factor circuit.
This types of regulator can be classified into PWM switch mode ( square mode ) and resonant switch mode ( sine wave).
There are four basic topologies of PWM switch mode regulators or converters .
a.Fly back converter
b.Buck converter
c.Boost converter
d.Buck boost converter
Rise Time (t r ) During rise time voltage falls from 90% V a to 10% where V a where V a is the initial anode voltage. In terms of current time taken by anode curre
what is aphasor
For the circuit of Figure(a), obtain the complete solution for the current i L (t) through the 5-H inductor and the voltage v x (t) across the 6- resistor.
Faraday conducted a series of experiments on coils in a magnetic field. He found that if the magnetic flux density threading a coil were changed, a voltage was induced in the co
Earthing : Any electrical appliance with a metal casing or with metal parts, likely to be touched by an operator is potentially dangerous. The danger is that an internal or extern
Write explanatory notes on Hard disk drive controller. Hard disk drive controller: It converts instructions from software running upon the computer to the electrical signals
A synchronous generator has a rotor with six poles and operates at 60 Hz. (a) Determine the speed of prime mover of the generator. (b) Repeat part (a) if the generator has 12
What are program invisible registers? The global and local descriptor tables are determined in the memory system. So as to access and give the address of these tables, the prog
Explain the Synchronous Up-Down Counters? The circuit of a 3-bit synchronous up-down counter and a table of its sequence are shown below. Alike to an asynchronous up-down count
Q. Using the small-signal equivalent circuit of a BJT with gm = 0.03 S, β = 75, and VA = 65 V, a load resistor RL is connected from the collector to the emitter, as shown in Figure
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd