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latching pushbutton help

Martaine2005

May 12, 2015
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Oh Dear John,
Do I really have to "unlike" your hand drawn schematic?
Of course not!
10 out of 10 for participating!:)
Just get it right next time!:D
EDIT: What time is it on the other side of the world?
Martin
 

Tha fios agaibh

Aug 11, 2014
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Martin, 3pm and all is well.

It can be done with relays but after you buy 8 relays and speed control circuit, it could become costly.

I'd figure someone would dream up some kind of logic gate thingy by now.

Ps: It was a quiz for me to figure out
 

Martaine2005

May 12, 2015
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Lol John, 8:10 pm here.
I dropped out when the OP mentioned the engine starting!!!..

Martin
 

Tha fios agaibh

Aug 11, 2014
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Lol.

Oh, by the way Martin, those symbols with parallel lines are not capacitors.
 

iKatoz

Nov 28, 2015
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Nov 28, 2015
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hahaha, It's written in Italian
Can I use directly a 4 posn rotary or I need to use relays to control the resistances? What types of resistors should I use?
 

iKatoz

Nov 28, 2015
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First of all I apologize for the horrible PWM Control.
I try to explain the circuit:
S5:main switch (I chose a DPDT Switch becouse it's cheaper than a SPDT/SPST switch and then I can use the other contacts to connect some LEDs)
S1:4 posn rotary for set the speed of the motor
S4: (same as S5) It is a kind of "manual mode", it's the lowest speed and is used to control the position of the motor shaft in a precise manner
S2: reverses the rotation of the motor
 

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Tha fios agaibh

Aug 11, 2014
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Detail of the pwm circuit?
Ideally, if you can attach the resistors directly to the selector sw, that'd be the way to go.
 

Martaine2005

May 12, 2015
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Uncle Chris, I have checked everywhere. I don't know what you are talking about..

upload_2015-12-4_22-6-27.pngMarty.
 
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