Ctri Question 3 (20 Marks) Lab 1-Zener Circuits and Applications Theory: Zener diode is designed ...
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...
that's all information it gives A zener-diode voltage regulator circuit is shown below. The tage V 8.0V and the zener resistance is assumed to Problem 3: (20 points) zener diode has breakdown vol be 0 ohms. The power supply voltage Vps can vary between resistance RL can vary between 100 ohms and 1 kohm. 10V and 14V and the load Ri PS 1. Find a value of Ri such that the zener diode remains properly biased over the range of...
Problem 3: (20 points) A zener-diode voltage regulator circuit is shown belkw zener diode has breakdown voltage Vz 8.0V and the zener resistance is nsumed to be 0 ohms. The power supply voltage Vps can vary between 10V and 14V and the lod resistance Ri can vary between 100 ohms and 1 kohm, 圧 1. Find a value of R such that the zener diode remains properly biased over the range of variation of Vps and RI (hint: the minimum...
1. All of these diodes have a reverse breakdown voltage: Silicon switching diode, zener diode, schottky diode and a light emitting diode. I or F (circle one) 2. Circle the correct statement(s) based on the following information: if you supply a 1Vp. 1KHz sine wave to a circuit with only passive elements: a) You will never measure a voltage above 1Vp b) You will always measure a voltage above 1Vp. c) You will sometimes measure a voltage above 1Vp. d)...
5. A light emitting diode (LED) is a diode that lights up when a current flows across it. The symbol for an LED is shown below (sometimes wiggly arrows are used to represent the light instead.) For this question we will assume we are working with LEDs that have a turn-on voltage of VoN-1V and a reverse breakdown voltage of VBR-8V a. You hook up a single LED to a power supply that can put out vol tage from -10...
1. A star connected secondary of a 60 Hz 3-phase transformer, as shown in Fig. 3, is supplying a 3-phase HW uncontrolled rectifier loaded with a pure 10 Ω resistor. The fuse Fy is open circuit. L. Determine the conduction periods of the diodes ii Draw the waveform of the output voltage. F1 D D and D in msec. phase A iii. Calculate the secondary line voltage if the average iv. Draw the waveforms of the supply currents i, and...
ans NO 2 TEE208/05 Question 1 (20 marks) (a) Sketch and label the I-V curves of: () a real germanium diode with forward voltage of 0.3V. 4 marks (i) a real sillcon zener diode with zener voltage of 4.7V. [4 marks] 4 marks] List two breakdown mechanisms for a zener diode. (b) (c) Rectifiers convert alternating current (AC) into direct current (DC). () Sketch and label the circuit of a simple half-wave rectifier. [3 marks] (U) Explain two differences between...
3. For the regulated power supply shown in Figure 5-3, which is a full-wave bridge rectifier containing ter combined with a Zener diode voltage regulator, determine the load voltage VI, load current Ir, source current Is, Zener current Iz and the ripple voltage at the input and output of the regulator, and r(p-p)y respectively, and the ripple frequency fr a fil- VL Ir. Is Iz=. (d-4)1a Ur(p-P) Is V' 1N4002GP Vout = VL + Iz IL 100 V2 120 V...
could younplease help me go through the solution of this question. b c d expecting a detailed explanation. Thanks 5. A circuit co nsists of a diode, resistor and capacitor as shown in Figure 11 and is driven by a 50 Hz sinusoidal waveform. Assume that the diode has a forward threshold voltage of 0.7 V an "on resistance" of 0.1 2 and a reverse breakdown of 20 V Sketch the I - V behaviour of the diode. (a) 13...
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...