hello i want to understand this circuit is how it is working and the function of the componet of it i googled it alot and alot but nothing thanks

 

Where are you confused?

Max.

 

Where are you confused?

Max.

i need and simple explain because this circuit is my homework and i will be asked in it and the professor didnt explain any thing about it he just give us the schematic only and i want to know that is the function of this circuit ,etc

 

Read page 10 od the data sheet.

Les.

 

I want to understand the rigth side which contain 5 varaibale resistance and IRRR and IRT and motor

 

I cannot see 5 variable resistors or motor on the data sheet and I have no idea what IRRR's and IRT's are.

Les.

 

Hello,

@LesJones , The IRT is the IR transmitter, the IRR is the IR receiver.
I enhanced the picture a bit, so you can see the parts.

@ahmedsaleh ,Your drawing is hard to read.
I played a bit with brightness and contrast to have an other view on the picture.



Bertus

 

For the IRT/IRR Google 'Slot Opto'.
Max.

 

Hi Bertus,
I had missed the schematic in post #1. I was just looking at the picture from the data in post #2. I find it difficult to give clues for homework questions without giving the answer.

ahmedsaleh,
Starting from the left hand side. The infra red transmitter is just like a normal LED but the wavelength of the light is below the visible spectrum so you will not be able to see it.. So if it was a normal LED what do think the effect of adjusting the variable resistor in series with it would be ?
(Correction I should have said the wavelength of infra red is above the visible spectrum. It is UV that is below.)

Les.

 

Hi Bertus,
I had missed the schematic in post #1. I was just looking at the picture from the data in post #2. I find it difficult to give clues for homework questions without giving the answer.

ahmedsaleh,
Starting from the left hand side. The infra red transmitter is just like a normal LED but the wavelength of the light is below the visible spectrum so you will not be able to see it.. So if it was a normal LED what do think the effect of adjusting the variable resistor in series with it would be ?

Les.

That's my question i dont know the function of the irr and irt and pots ?

 

i dont know the function of the irr and irt and pots ?

Re-read posts #7 and #8.
"Pot" = potentiometer. This can be used as a potential divider (all three terminals in use) or simply as a variable resistor (only two terminals essential in use, but the centre terminal is usually shorted to an end terminal).

 

Hi Alec,
I think Max's comments in post #8 were aimed at me. I had missed the scematic in post #1 so I was trying make sense of the comments in post #5 thinking they were related to the schematic post #2. (It was my mistake.)

Les.