Higher Engineering Science Assignment 2019/20

I thought I'd create a post for everyone doing Higher engineering this year. How are we feeling about it? We started on Monday and have until the 26th to finish (due to the long weekend).

I personally find the first task quite hard especially the drawing of the MOSFET controlled motor - I tried it on Yenka and it wouldn't do anything.

Also task 3, on the pin table it says Pin 1 is the Set switch, and pin 2 is the release switch, but in both the circuit and the flowchart its the other way round. Is that intentional? The flowchart still works (with amendments but not to those components) perfectly fine.

And for the question where you pick the most suitable method for controlling the system in task 2 (microcontroller, NAND or logic) I put down microcontroller as it can be reprogrammable. Did anyone else do the same? Thanks

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Reply 1

Notmeatall

Any ideas on question 1a

Reply 2

HuBeeny

Original post by Notmeatall

Any ideas on question 1a

I did >Error Detector (negative side to the feedback)>Control Unit>Output Driver > Motor>.
for the feedback, I put animal sensor but I may change it to motion.

Reply 3

Notmeatall

Sam what did you say the input was and the output

Same*

Original post by Notmeatall

Sam what did you say the input was and the output

It gives you it on the worksheet.

Reply 6

Notmeatall

Original post by HuBeeny

It gives you it on the worksheet.

Don't think it does

Reply 7

Notmeatall

Original post by Notmeatall

Don't think it does

Don't

Original post by HuBeeny

It gives you it on the worksheet.

I don't see it

Reply 8

HuBeeny

One of the worksheets, 1a, has the input and output, and the arrows so you only have to fill in the rest. Ask your teacher maybe you weren't given it.

Reply 9

Notmeatall

Ye we were not given it but I have it now

Reply 10

Notmeatall

What amendments did u make on 1d question 1 I am struggling a lot

Reply 11

HuBeeny

Original post by Notmeatall

What amendments did u make on 1d question 1 I am struggling a lot

I can't quite remember. I remember switching Rf and Ri values in order for the output voltage being +2.5. I think I also switched the positions of the sensors which resulted in a positive output.

Reply 12

Notmeatall

Ok I switched rf and ri also I'll need to try switching the sensors

Reply 13

Notmeatall

What question are you up to

Reply 14

HuBeeny

Original post by Notmeatall

What question are you up to

Im basically done. Some of the answers I've done on seperate sheets so i have to write everything out and check for errors.

Reply 15

Notmeatall

Nice I'm going to try tackle question 3 left if for last cause 😬😬

Reply 16

Notmeatall

Ye what did u do for 1e

Reply 17

Notmeatall

What amendments did u make for 3?

Reply 18

Labrador99

Volunteer Team

Hi everyone, just a reminder that the assignment should be completed independently, and working together on SQA coursework could result in you being penalised for collusion. It's totally fine to have a general discussion about the assignment, exam, topics you're struggling with, but I would advise against asking for help on (or sharing answers for) specific questions from the assignment.

Reply 19

justadumbboi

Original post by HuBeeny

I can't quite remember. I remember switching Rf and Ri values in order for the output voltage being +2.5. I think I also switched the positions of the sensors which resulted in a positive output.