Facebook
Google
GitHub
Linkedin
Good day all. I registered late at Uni this year but in time for the first test that I failed a day after we're given a project but I am given a project that I am struggling with I tried to answer the questions and do calculations. I would like someone to help please I need the marks. I attached my questions and answers but I also needsome assistance in circuit designing please.
The sketch to the left is of an amplifier that does not contain an emitter resistor. Because there is no emitter resistor the base resistor must be sufficiently big to prevent large currents to go through the base emitter of the transistor. Like with all electronic and electrical devices, when the current is higher than what the device can handle then the device can burn out.
Higher wattages mean stronger devices. For example, an electrical motor with a higher wattage will be able to move heavier loads than electrical motors with a lighter wattage. The voltage that is available on a boat comes from 12 V batteries.
An Arduino can be used to sense direction. It can deliver a maximum of 200 mW at 5V for each pin.
The steering wheel of the boat takes 84W to turn.
In general, stronger motors work on higher voltages. Assume that the electrical motor either has to be fully switched on or fully switched off.
Transistor 2N2222 is a NPN transistor which has a current gain of 75 and a maximum current of 800mA.
Transistor MJF44H11 is a NPN transistor which has a current gain of 40 and a maximum current of 8A.
Transistor MJF44H11 is a PNP transistor which has a current gain of 40 and a maximum current of 8A.
The goal is to have an auto-pilot for a boat. All the auto-pilot has to do is to keep the boat facing in a specified direction.
*Design the device that is the solution to the problem. Show all calculations. *Use Multisim to test the design. What are your findings? Show pictures of final design on Multisim. These pictures should show results of measurements. Because Multisim cannot simulate an Arduino without plugins, use a combination of resistors, power supplies and switches to “simulate” as the input from the Arduino. Use a resistor as a replacement for a DC motor.
The sketch to the left is of an amplifier that does not contain an emitter resistor. Because there is no emitter resistor the base resistor must be sufficiently big to prevent large currents to go through the base emitter of the transistor. Like with all electronic and electrical devices, when the current is higher than what the device can handle then the device can burn out.
Higher wattages mean stronger devices. For example, an electrical motor with a higher wattage will be able to move heavier loads than electrical motors with a lighter wattage. The voltage that is available on a boat comes from 12 V batteries.
An Arduino can be used to sense direction. It can deliver a maximum of 200 mW at 5V for each pin.
The steering wheel of the boat takes 84W to turn.
In general, stronger motors work on higher voltages. Assume that the electrical motor either has to be fully switched on or fully switched off.
Transistor 2N2222 is a NPN transistor which has a current gain of 75 and a maximum current of 800mA.
Transistor MJF44H11 is a NPN transistor which has a current gain of 40 and a maximum current of 8A.
Transistor MJF44H11 is a PNP transistor which has a current gain of 40 and a maximum current of 8A.
The goal is to have an auto-pilot for a boat. All the auto-pilot has to do is to keep the boat facing in a specified direction.
*Design the device that is the solution to the problem. Show all calculations. *Use Multisim to test the design. What are your findings? Show pictures of final design on Multisim. These pictures should show results of measurements. Because Multisim cannot simulate an Arduino without plugins, use a combination of resistors, power supplies and switches to “simulate” as the input from the Arduino. Use a resistor as a replacement for a DC motor.
