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(a) Explain what would happen if the gate is made positive with respect to the cathode during rev...
Consider the circuit depicted in Fig. 2. The switch SW1 has been closed for a long time before it...
Consider the circuit depicted in Fig. 2. The switch SW1 has been closed for a long time before it is opened at time t = 0. The switch SW2 has been open for a long time before it is closed att = 0.1 (sec). i) Find the initial current I(0) flowing in the inductor and the initial voltage V(0) across the capacitor. ii) Find the voltage V(t) across the capacitor and the current I(t) through the inductor for 0 ≤ t ≤...
Learning Goal: To analyze an RC circuit to determine the initial voltage across a capacitor, the...
Learning Goal: To analyze an RC circuit to determine the initial voltage across a capacitor, the time constant, and the expression for the natural response of the capacitor voltage, and then to find other circuit quantities such as current,voltage, power, or energy. The natural response of an RC circuit is the response of the capacitor voltage to the sudden removal of a DC source. When this occurs, the capacitor releases its stored energy Figure < 10121〉 t 0 V. Figure...
(i) (ii) Draw the structural diagram of a Gate Turn-Off (GTO) thyristor. [7%] Explain the operation...
(i) (ii) Draw the structural diagram of a Gate Turn-Off (GTO) thyristor. [7%] Explain the operation of GTO and clearly state the voltage and frequency range for its application [15%] State four advantages of GTOs when compared to conventional thyristors. (iii) [8%] (b) Consider the single-phase full bridge rectifier shown below where R=6 12, L = 6 mH, E = 60 V and the ac source voltage is 230 V, 50 Hz. * * 13 பண்பு 14* (i) For continuous...
electromagnetic 1) RC Circuits: (15 pts) (a) Use Kirchhoff's voltage law (KVL) to obtain an ordinary...
electromagnetic
1) RC Circuits: (15 pts) (a) Use Kirchhoff's voltage law (KVL) to obtain an ordinary differential equation (ODE) describing the charge vs. time function (1) for a capacitor in the discharging RC circuit shown below. Assume that at time t = 0 (right before the switch is closed) the voltage across the capacitor is V = V.. R R с V(t) С t=0 t>O Fig. 1. Fully charged RC circuit Fig. 2. Discharging RC Circuit (b) Solve the ODE...
Figure 3. Variable RC circuit A variable time constant circuit is shown above. The potentiometer (R2)...
Figure 3. Variable RC circuit A variable time constant circuit is shown above. The potentiometer (R2) can change its resistance from 0 Ohms to 750 Ohms. R1 has a fixed value of 70 Ohms. The capacitor has a capacitance of 35 pF. a) Use the supplied MATLAB™ code Calc RC and function RC_Circ to find the time variation of voltage across the Capacitor, Ve, and the fixed resistor R1 for a steady voltage V1 = 5 Volts which is turned...
Construct a RC circuit (series) with a capacitor, a resistor, a battery,
Part A Charging of RC Circuit 1) Construct a RC circuit (series) with a capacitor, a resistor, a battery, two switches, and appropriate meters that will enable you to make measurements of the parameters for charging up the capacitor. The placement of the switches allows you to measure both charging and discharging of the RC circuit. See diagram below: 2) Choose a combination of Rand C that will give you a time constant(T) of 20 seconds. T=R*C 20= 100* C=0.2F 3) Set the...
Question 1: An ideal diode turns on for positive anode-cathode voltages. But the characteristic of diode...
Question 1: An ideal diode turns on for positive anode-cathode voltages. But the characteristic of diode does not appear to show any ID values when voltage across the diode is greater than zero (VD > 0). How do you explain this plot? ---Reverse bias Forward bias --- Question 2: Plot (I-V) characteristic if we place a 10 12 resistor in series with the diode? Question 3: Plot (I-V) characteristic if we place a lV voltage source in series with the...
5. [RC Circuits] Consider the circuit shown in Figure 5 attached. As shown, the switch is...
5. [RC Circuits] Consider the circuit shown in Figure 5 attached. As shown, the switch is in position "A" for t < 0, and the circuit has been at rest for a long time. At time t = 0, the switch opens and the capacitor starts to drain across the resistor. (a) When the switch is closed and there is only a direct current (DC) source, the capacitor acts like an open circuit. Find the constant voltage across the capacitor...
A simply RC circuit made up of a capacitor with capacitance C and resistor with resistance...
A simply RC circuit made up of a capacitor with capacitance C and resistor with resistance R = 15 kΩ is attached to a battery with emf E = 24 V. If time constant is 25 µs, what is the capacitance C and the time it takes for the voltage across the capacitor to reach 16 V after the switch is closed at t = 0?
"O OHLEI E PICS! 3. An RC-Circuit is made up of a 12 kO resistor, a...
"O OHLEI E PICS! 3. An RC-Circuit is made up of a 12 kO resistor, a 40 uF capacitor and a 9.0 V battery. The battery is used to charge the capacitor, and then it is removed from the circuit through the use of a switch, allowing the capacitor to discharge. a. (3 pts.) What is the time constant of the circuit? b. 17 pts.) Calculate the voltage across the capacitor, voltage across the resistor, and the current in the...
Learning Goal: To analyze an RC circuit to determine the initial voltage across a capacitor, the time constant, and the expression for the natural response of the capacitor voltage, and then to find other circuit quantities such as current,voltage, power, or energy. The natural response of an RC circuit is the response of the capacitor voltage to the sudden removal of a DC source. When this occurs, the capacitor releases its stored energy Figure < 10121〉 t 0 V. Figure...
(i) (ii) Draw the structural diagram of a Gate Turn-Off (GTO) thyristor. [7%] Explain the operation of GTO and clearly state the voltage and frequency range for its application [15%] State four advantages of GTOs when compared to conventional thyristors. (iii) [8%] (b) Consider the single-phase full bridge rectifier shown below where R=6 12, L = 6 mH, E = 60 V and the ac source voltage is 230 V, 50 Hz. * * 13 பண்பு 14* (i) For continuous...
electromagnetic
1) RC Circuits: (15 pts) (a) Use Kirchhoff's voltage law (KVL) to obtain an ordinary differential equation (ODE) describing the charge vs. time function (1) for a capacitor in the discharging RC circuit shown below. Assume that at time t = 0 (right before the switch is closed) the voltage across the capacitor is V = V.. R R с V(t) С t=0 t>O Fig. 1. Fully charged RC circuit Fig. 2. Discharging RC Circuit (b) Solve the ODE...
Figure 3. Variable RC circuit A variable time constant circuit is shown above. The potentiometer (R2) can change its resistance from 0 Ohms to 750 Ohms. R1 has a fixed value of 70 Ohms. The capacitor has a capacitance of 35 pF. a) Use the supplied MATLAB™ code Calc RC and function RC_Circ to find the time variation of voltage across the Capacitor, Ve, and the fixed resistor R1 for a steady voltage V1 = 5 Volts which is turned...
Part A Charging of RC Circuit 1) Construct a RC circuit (series) with a capacitor, a resistor, a battery, two switches, and appropriate meters that will enable you to make measurements of the parameters for charging up the capacitor. The placement of the switches allows you to measure both charging and discharging of the RC circuit. See diagram below: 2) Choose a combination of Rand C that will give you a time constant(T) of 20 seconds. T=R*C 20= 100* C=0.2F 3) Set the...
Question 1: An ideal diode turns on for positive anode-cathode voltages. But the characteristic of diode does not appear to show any ID values when voltage across the diode is greater than zero (VD > 0). How do you explain this plot? ---Reverse bias Forward bias --- Question 2: Plot (I-V) characteristic if we place a 10 12 resistor in series with the diode? Question 3: Plot (I-V) characteristic if we place a lV voltage source in series with the...
5. [RC Circuits] Consider the circuit shown in Figure 5 attached. As shown, the switch is in position "A" for t < 0, and the circuit has been at rest for a long time. At time t = 0, the switch opens and the capacitor starts to drain across the resistor. (a) When the switch is closed and there is only a direct current (DC) source, the capacitor acts like an open circuit. Find the constant voltage across the capacitor...
"O OHLEI E PICS! 3. An RC-Circuit is made up of a 12 kO resistor, a 40 uF capacitor and a 9.0 V battery. The battery is used to charge the capacitor, and then it is removed from the circuit through the use of a switch, allowing the capacitor to discharge. a. (3 pts.) What is the time constant of the circuit? b. 17 pts.) Calculate the voltage across the capacitor, voltage across the resistor, and the current in the...
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