What are the two methods of control in ac voltage controllers?

1075

---

Explain why open-loop op-amp configurations are not used in linear applications?

1365

---

What are the advantages of gray code?

1261

---

Give an expression for average voltage of single phase semiconverters?

1235

---

What are the advantages of gto over scr?

2057

---

What are the control strategies of chopper?

1247

---

What is forced commutation?

1145

---

Describe the principle of step-up chopper. Derive an expression for the average output voltage in terms of input dc voltage & duty cycle?

1245

---

Explain why is the diffusion technique of formation of resistor most widely used?

1132

---

what are the applications of integrators?

1112

---

What are the advantages of load commutated chopper?

1430

---

What is meant by dc chopper?

1108

---

what is an excitation table?

1279

---

What is the main purpose of power electronics?

1084

---

What are the main components used for isolating the power circuits, power semiconductor from the low-power circuit?

1311

---