Assignment#1( Diode) PDF

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DEPARTMENT OF COMPUTER & INFORMATION SYSTEM ENGINEERING Course Code: EL-103 Course Title: Basic Electronics Teacher Name: Ms.Ayesha Akhtar Semester: Spring 2020 Class: FE (CIS)

ASSIGNEMNT #1 (DIODE)       

Each group has to submit one assignment. Only one member will mail the assignment on the following id : [email protected] The assignment must be hand written (the hand writing must be neat and readable). Question must be written and relevant figures must be drawn along with each question. The assignment from each group leader must reach me positively by 10 th July 2020. Late submission will not be accepted. The submission date will not be extended

Q1) For the circuits shown in Fig.(1) using I. ideal diodes II. practical diode find the values of the voltages and currents indicated.

Fig.(1) Q2) For the circuits shown in Fig. (2) using ideal diodes, find the values of the labeled voltages and currents.

Fig.(2)

Q3) In each of the ideal-diode circuits shown in Fig,(3) vi is a 1-kHz, 10-V peak sine wave. Sketch the waveform resulting at vo. What are its positive and negative peak values?

Fig.(3)

Q4) Assuming that the diodes in the circuits of Fig (4) are ideal, find the values of the labeled voltages and currents.

Fig.(4)

Q5) The circuit of Fig.(5) can be used in a signaling system using one wire plus a common ground return. At any moment, the input has one of three values: +3 V, 0 V, - 3 V. What is the status of the lamps for each input value? (Note that the lamps can be located apart from each other and that there may be several of each type of connection, all on one wire!).

Fig.(5)

Q6) Assuming ideal diodes determine whether each silicon diode in Fig.(6) is forward-biased or reverse-biased.

Fig.(6) Q7) Assuming the diodes to be practical draw the output voltage waveform for each circuit in Fig.(7) and include the voltage values. Q8)What is the peak inverse voltage across each diode in Fig.(7)?

Fig.(7) Q10) Find the average value of each voltage in Fig.(8)

Fig.(8)

Q 11) Show how to connect the diodes in a center-tapped rectifier in order to produce a negativegoing full-wave voltage across the load resistor. Q12) Consider the circuit in Fig.(9)

Fig. (9) (a) What type of circuit is this? (b) What is the total peak secondary voltage? (c) Find the peak voltage across each half of the secondary. (d) Sketch the voltage waveform across RL. (e) What is the PIV for each diode?...