4. Design a clamp circuit to clamp the negative extreme of a periodic input waveform of 10 sin(100πt)V to −5 V. Use 1 diode, 1 Zener diode, 1 resistor, and 1 capacitor of suitable values. Provide following minimum ratings of the selected components.
(a) Diode - Maximum reverse voltage, peak forward current
(b) Zener - Zener voltage, Zener current
(c) Resistor - Resistance, power rating
(d) capacitor - capacitance, Maximum voltage
Assume a 0.6 V forward drop for all diodes and that the Zener diodes have an ideal characteristic in the breakdown region. In your design explain the following points: • Explain the contribution of the capacitor in the circuit including its charging and discharging behaviour • Purpose of having a zener in this circuit
4. Design a clamp circuit to clamp the negative extreme of a periodic input waveform of 10 sin(100πt)V to −5 V. Use 1 diode, 1 Zener diode, 1 resistor, and 1 capacitor of suitable values. Provide foll...
Ctri Question 3 (20 Marks) Lab 1-Zener Circuits and Applications Theory: Zener diode is designed to operate in reverse conduction. Zener breakdown occurs at a precisely defined voltage, allowing the diode to be used as a voltage reference or clipper. While Zener diodes are usually operated in reverse conduction, they may also be operated in cutoff and forward conduction. There are two different effects that are used in "Zener diodes". The only practical difference is that the two types have...
Design a diode waveform shaping circuit that would have the above transfer function. You can use PN junction diodes with VD0 = 0.7 V, DC voltage sources, and resistors in your design. You should indicate the resistor values and the DC voltage sources’ values in your design if you used any resistors or DC voltage sources. You can use Zener diodes with different Vz values if you want, but you do not have to. Write the possible cases of the...
1. to design a high efficiency d.c. to d.c. power converter with the given specifications Input voltage Output voltage Nominal load current: 4A Inductor current ripple: 0.1A max Switching frequency: 30 kHz Output voltage ripple: 20 mV min 10V max 15V nominal (regulated) 8V Define a suitable power circuit topology to meet the above specification Sketch a circuit diagram of the chosen power circuit topology (a) Define the minimum and maximum duty cycles assuming that the control circuit keeps the...
Design a FULL WAVE BRIDGE RECTIFIER circuit that will: Take 120volts ac, 60 hz, sinusoidal waveform and convert it to a “regulated “dc value giving 12 volts +, - 1 volt across a 2000-ohm output load resistor with no more than 2% ripple voltage. You may assume: a. An ideal power transformer as discussed in class. b. For hand computations, you must assume a diode given by Figure 4.8 page 185. c. A filter capacitor sized per the textbook equation...
Design a high efficiency 3.3 V, 5A d.c.to d.c. power converter from a 4 to 5.5 Vdc source. The maximum allowable inductor current ripple and output voltage ripple are 0.1A and 20 mV, respectively. Assume a switching frequency of 20 kHz.a) Design a suitable converter power circuit using a MOSFET switch, showing all calculation of inductor and capacitor values and drawing a circuit diagram of the final design including component values. Indicate the peak inverse voltage and forward current rating...
nde) Figare 18 Circuit for Problem 15 Analysis 1. Plot the input and output vollage wavefoems nlt) and lt) as wel as the capacitor current iclt) for the input wavelorm shown in Fig ure 1.10 on the next page, Assume the capacitoris initially discharged 2 Determine the following numerical descriptors for lf) and iclf (a) Voltage values of t) at times-250, 650, and 960ms. (b) Peak capacitor current t Discass the relationship between the plots of the capacitor current ic(t)...
A common source amplifier circuit based on a single n-channel MOSFET is shown in Figure 4b. Assume that the transconductance gm-60 mS (equivalent to mA/ V) and drain source resistance, os, is so large it may be neglected. 0) Calculate the open circuit voltage gain Av Yout/ Vis. i) The amplifier has a load of 10 k2. Determine the current gain Va. = 12 V 150k 4k3 Vout Vin 200k GND = 0 V Figure 4b a) State the name...
Question 4. (a) A full-wave bridge rectifier power supply is powered from the secondary of a transformer which has a rms secondary voltage of 15.6V. The primary of the transformer is connected to a 50Hz, 230VRMS power supply. A 2700uF filter capacitor is used. A current of 1.5 Amp is drawn from the supply. (i) Sketch a schematic diagram of the setup. (ii) Calculate the mean de output voltage. Assume each power diode has a forward voltage drop of 1...