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!
Second Quadrant or Class B Chopper
Class B chopper is shown in figure in this type of chopper load must contain a dc source E ( may be battery or a DC motor) and inductances the operation of classes B chopper as follows.
Mode I
When SW is on V0 = 0 but current will be flowing through inductance L and chopper SW due to E as shown in figure in this mode inductance L stores energy.
Figure shown the polarity of inductance and direction of load current. It is clear from this figure that this polarity's same as in directed but the current is flowing in reverse direction. Hence is negative.
Mode II
When SW is off V0= { E+ L di0/dt} exceeds the Vs therefore diode D becomes forward biased and current flow load to source through diode D. Again the load voltage is positive but current is in negative direction. In this mode inductance releases energy and the polarity is shown in figure.
Hence the Vo -I0 characteristics is shown in figure that lie in second quadrant.
Why do potential barriers breaks when a breakdown voltage is application to semiconductor
A 100-kW, 230-V shunt generator has R a = 0.05 and R f = 57.5 . If the generator operates at rated voltage, calculate the induced voltage at (a) full load, and (b) one-half fu
Describe the term (i) Automation (ii) Automated lines 04 List out the reasons for automation and discuss in detail the process of work part transport.
The expression given in Problem for (S 0 /N 0 )PCM is plotted for a sinusoidal message in Figure to show the performance curves for a PCM system using a polar waveform. (a) Comm
Determine the value of Resistance: Determine the value of R, so that the condition for resonance is fulfilled Figure Solution Admittance of first branch
Q. Write a note on clampers ? Clamper is a circuit that "clamps" a signal to a different dc level. The different types of clampers are positive negative and biased clampers.
Technology Options for Metering Energy meters classically consist of an energy measurement apparatus for measuring energy consumption and a gauge in which is visible outside t
Data Communication 1. Write short notes on: a. Sky wave propagation b. Line of sight propagation 2. List and describe the different types of errors that occur during dat
What will I write in Inductor conclusion
Auxiliary Carry Fla - Registers If carry is generated from D 3 to D 4 in the accumulator after any arithmetical or logical operations. Auxiliary carry flag (AC) is set
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