Deepakkumar Yadav
Expression for The Output Voltage of Step Up Chopper Q. Describe stop up chopper with neat circuit diagram. Draw its input and output waveforms. Q. Explain principle of step up chopper with neat be circuit diagram. Derive the expression of output voltage. Assuming that the current ripple △I is small, i.e. assuming current io, to be constant, … Read more
Battery Charging Regulator Q. Describe with neat diagram battery charging using SCR. Circuit diagram of Battery Charging Regulator : In the simple battery charging circuit the battery voltage is not being sensed. However in the battery charging regulator circuit shown in Figure, the battery voltage is being sensed continuously by using a potentiometer R3 and capacitor C. VR is the … Read more
Advantages and Disadvantages of Parallel Inverter Advantages : The load voltage waveform is not dependent on the load, as it does in series inverter. Only two SCRS are required as compared to at least four in bridge inverter configuration. (additional auxiliary SCRS are also required in bridge configuration). It uses the simple class C commutation. It is … Read more
Power Factor Improvement Power factor improvement is the fastest way of achieving energy conservation and improving the bottom line. Some of the techniques included for the purpose are as follows : Study of various types of loads. Determination of the percentage of inductive loads. Determination of transformer capacity. Determination of power factor under full load … Read more
Methods of Improving Power Factor Using capacitors. Using synchronous condensers (synchronous motor). Using phase advancers.
Step Up Chopper Q. Explain principle of step – up chopper with neat circuit diagram Q. Draw a neat circuit and explain the working of step up chopper Q. Describe step up chopper with neat circuit diagram. Draw its input and output waveforms. Q. Describe step up and step down chopper with neat diagram. Q. … Read more
Four Quadrant Chopper (Type E Chopper) Questions Q. Classify chopper based on output voltage and quadrants of operation. List any four applications of chopper. Q. Classify choppers based quadrants of operation. Sketch only circuit diagram of each. Q. Explain the operation of four quadrant chopper. Q. Draw the circuit diagram of class E-chopper and explain … Read more
Classification of amplifiers An amplifier is an electronic circuit which is used to amplify or increase the level of weak input signals into very high output signals. Transistors are used as amplifiers in most circuits. In addition, resistors, capacitors and a biasing battery are required to form complete amplifier circuits. Almost all electronic systems work … Read more
Type D chopper Another two quadrant configuration is type D chopper as shown in Figure (a) In this configuration the load is connected differentially between type A and type B chopper. Figure (a) Figure (b) This chopper can operate in the first or fourth quadrant as shown in Figure (b). It can operate either in … Read more
Two Quadrant Choppers Type C Q. Classify chopper based on output voltage and quadrants of operation. List any four applications of chopper. Q. Classify choppers based on quadrants of operation. Sketch only circuit diagram of each. Q. With the help of neat circuit diagram and necessary waveforms, explain class C chopper. Q. Draw and explain … Read more