PLabQ 3 (3)

1. For the ADC0804 used in section 1. the step size can be adjusted by setting the reference voltage on pin 9. When this pin is not connected (as shown in the figure 1 schematic), the reference voltage is the operating voltage Vcc. a) What is the step size for this default setting? b) How can we set the reference voltage on pin 9. to 4 V? c) What would be the step size after changing the reference voltage to 4 V? 2. Determine the analog input that will result in an output code of "10001110". Assume 5 V reference. Show your calculations. 3. What value of the analog input voltage would result in a digital output is 6F (hex)? Assume 4V reference. Show calculations. 4. In section, you used a 8-bit D/A converter. With a reference voltage of 5 V, what voltage does each bit represent in terms of the analog output? Show calculations. 5. For the D/A converter, if the output is 3.62 V, what is the value of the digital input? Show calculations. 6. For the D/A converter circuit shown in Figure 2,…

QUESTION 1 What practical skills were taught and assessed in you Electronic Engineering lab? Choose one or more correct answers in the following list: A. Soldering electronic components on a PCB B. Working principles of a semiconductor diode. C. Electronic PCB design D. Soldering an IC on a PCB E. De-soldering surface mount component techniques F. Cleaning the soldering iron tip

Answer all the items. Thanks!

Draw the basic building blocks of the following systems. Explain briefly the operation/function(s) of each block in your system. Recommend probable integrated circuits to be used per operation/function(s) in your system. 1. A system that will monitor and control the level of water in a dam. 2. A system that will switch ON the AC power generator as soon as the main AC source is OFF. Switch OFF the AC power generator when the main AC power is ON.

With the aid of well labeled diagrams, explain the principle of operation of: a. a pyranometer. b. a wind turbine, from resource to electrical power

Please answer all subparts for like either dislike is ready.. Please all subparts in short..

The purpose of the current limiting resistor in a Zener diode circuit is to _________. a. Maintain a constant current through the load resistor b. Maintain a constant voltage across the Zener diode c. Maintain a constant current through the Zener diode d. Drop the additional voltage from the power supply in order to maintain a constant voltage across the Zener diode Please answer it clearly.

1) A 5 turn, 100 K2 potentiometer shaft is turned 720 degree, the voltage Vout between the arm and ground changes by 16 volts. a. What is the gain (Kp) of the potentiometer in volt/degree? b. What is the ER, the maximum voltage? c. If the measured resistance at midpoint is 50.5 K2, what is its linearity?

Explain with a simple circuit diagrams the three main methods (Flash, dual slope and SAR) for analog to digital conversion. please answer in typing format solution please

Q/ This means clarifying and indicating with I needd adrawind, anhotation and explanation of a picture Power Stage B IM A conduction Analog Interface Circuit To the gates. 介 Firing Circuit Micro-Controller Circuit C (A) fring angle (B) 30 firing angle (C) 90 firing angle (D) 120° fring angle Figure 7 Electronic Soft Starting & Effect of Firing Angle on Output Voltage