Two quadrant type a chopper or class c chopper or reversible, Electrical Engineering

Two Quadrant Type A Chopper or Class C Chopper or Reversible Chopper

The  quadrant type A Chopper  is also  known as reversible chopper   because  the polarity of the load current can be  reversed.

Mode I

When SW1 is ON  V0= Vs and the  direction of current  is shown  as figure  therefore current I0 and voltage Vo will be positive.

When SW1  of OFF V0 =0 but  now load inductor releases the energy and  current is  maintained in the same direction. In  this case V0= 0 because the polarity of inductance will be  reversed and VL = -E therefore.

V0 = VL +  E = -E  + E =0

Hence the Vo - Io characteristic is drawn in first quadrant  since both V0 = I0  are positive as shown  in figure.

Mode II

When SW2 is on Vo + 0 but current  will be  flowing from load  t oSW2  in negative direction.  Inductance stores  energy due to E2.

When SW2  is off Vo = E +L  di / dt exceeds Vs  and therefore  diode D is  forward biased and current  flows  from load  to source  through  diode D.

Hence  the Vo -I0  characteristics for mode II is  drawn in  second  quadrant  since Vo is positive  but I0 is negative  as shown  in figure.

 

Posted Date: 4/3/2013 12:39:19 AM | Location : United States







Related Discussions:- Two quadrant type a chopper or class c chopper or reversible, Assignment Help, Ask Question on Two quadrant type a chopper or class c chopper or reversible, Get Answer, Expert's Help, Two quadrant type a chopper or class c chopper or reversible Discussions

Write discussion on Two quadrant type a chopper or class c chopper or reversible
Your posts are moderated
Related Questions
Q. Explain the high-frequency response of FET amplifier?  The analysis for the high frequency response of the FET amplifier is almost the same as that of the BJT amplifier. The

Q. What is error-rate control? A system is said to possess error-rate damping when the generation of the output in some way depends upon the rate of change of the actuating sig

Global Positioning System: For power utilities, the basic objective of using Global Positioning System (GPS) and GIS should be to: enhance the efficiency of transmissio

Q. A sectional view of a cylindrical iron-clad plunger magnet is shown in figure. The small air gap between the sides of the plunger and the iron shell is uniform and 0.25 mm long.

Draw the implementation of time-invariant system A linear time-invariant system is described by the difference equation: y[n] = 2x[n] - 3x[n - 1] + 2x[n - 2]   Draw the i

E n e r gy Band Diagram Energy band diagram in qualitative form is sketched by following the following process: 1. The semiconductor device is supposed to be ma

Q. Explain the Importance of distributing frames? Basically four levels of cabling are used as displayed in Figure. At the subscriber end, drop wires are taken to a distributio

Q. Determine the time delay of the cable? An RG-213/U (radio guide 213/universal coaxial cable) is a small-sized, flexible, double-braided cable with silvered-copper conductors

A selection form an application's menu, or a command typed in by the user, like at a DOS prompt or at the Run dialog box in Windows.

Using the LM741operational amplifier build a current amplifier with the voltage gain of  |A V | = 300 v/v ± = 20% . Measure all necessary parameters of the amplifier (as per delive