Thanos AMC1.6 USB 2DOF Motion Controller

[sniegavirs]

Has someone tried to get this AMC controller work with any pneumatics!?

I'm building a joyride type motion simulator and hoping to use this AMC controller together with pneumatic actuators.. Any advice!?

[wptm]

I don't see topic for Thanos's DSMhB 1.2 h-bridge. If it's very off topic to ask about it here, please warn me.
So, I've built this h-bridge. I've used IRF3205 instead of IRLZ44 mosfets. Unfortunately it does not work.
What is interesting, that without the motor connected I can see how it gives and takes the voltage. The status leds are also not working. If motors are connected it gives only some hundreds of volt.
I'm testing it with a small arduino code to give PWM and IN2 +5V and for IN1 nothing in a 2sec cycle.

Code: Select all

int PWM1 = 10;
int PWM2 = 9;
int M1IN1 = 2;
int M1IN2 = 3;
int M2IN1 = 4;
int M2IN2 = 5;
void setup() {
  pinMode(PWM1, OUTPUT);
  pinMode(PWM2, OUTPUT);
  pinMode(M1IN1, OUTPUT);
  pinMode(M1IN2, OUTPUT);
  pinMode(M2IN1, OUTPUT);
  pinMode(M2IN2, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
 digitalWrite(PWM2, HIGH);
 digitalWrite(M2IN1, LOW);
 digitalWrite(M2IN2, HIGH);
 delay(2000);
 digitalWrite(PWM2, LOW);
 digitalWrite(M2IN1, LOW);
 digitalWrite(M2IN2, LOW);
 delay(2000);
}

I've made a video where you can see, what I've tested so far. Any advices are welcome!

[wptm]

I've got it. After digging a lot on other forums, I finally gave a try to use IRL540N instead of IRF3205. Now, it works.
I don't want to be off topic I'll describe the details in an other topic.

[NeoTokyoNori]

I've got it. After digging a lot on other forums, I finally gave a try to use IRL540N instead of IRF3205. Now, it works.
I don't want to be off topic I'll describe the details in an other topic.

I am glad you got it to work!
I thought thanos said in his document that IRF3205 would work, so I was puzzled...

I think we could use a thread for Thanos h-bridge too.

[Senetor]

The IRL540N are logic level devices and only require up to 5v to turn on fully, whereas the IRF3205 require up to 10v to turn on fully.
If there is not enough voltage to turn the device on fully, its like a slipping clutch in a car, it gets very hot quickly and burns up.
That is why the mosfet is pulsed with a PWM signal to turn it on and off. It is like engaging and disengaging a clutch on a car, it has
to hook up fully so it does not get hot. If you keep slipping the clutch it will get too hot and burn up, a mosfet works in a similar way.
If the mosfet is fully turned on it should not produce very much heat, it is when it is turning on and off that produces the heat, that
is why it should be turned on and off quickly to avoid this.


Senetor.

[Senetor]

Here is a link to the H-Bridge on the original forum where it all started some 5 years ago.

X-Sim link.doc

(25.5 KiB) Downloaded 718 times

It would not allow me to show the full URL on this page, so I did it this way, in a word doc file.

Senetor.

[wptm]

Thanks! Yes, i was reading that and some personal topics there also.
Do you think Senetor, is it possible to drive the IRF3205 with some extension to dsmhb 1.2? You know, that has much better performance.
Slowly I get in how the stuff in dsmhb 1.2 work. I really not sure, but would not be enough to drive the IRF3205, if 74HC08 would have 6v vcc? I see that it must not have more than 6v.

[Senetor]

WPTM, if you read the earlier post, (nine to be exact), that is why it is suggested to use the STP80NF55L-06 or IRLZ44N mosfets for the N-Channel because they are logic level and only require up to 5v to turn on fully. The " L " in the part No means they are logic level parts.
This has been talked about on the original forum many years ago.
The only way to drive the IRF3205 Mosfet correctly is to use a dedicated Mosfet driver like the HIP4081 as used on the OSMC project H-bridge.
With the Thanos H-Bridge it all depends on how much load the motor is on the H-Bridge and how much load or weight the motor has to move from a standing start, the motor draws more current from a stalled position (standing still) as to it being able to survive using IRF3205 or IRFZ44N mosfets as they are not being turned on fully because they are not being driven correctly.
As was said earlier about a slipping clutch and heat buildup, it may only be seconds that it takes to destroy the mosfet from heat because it is not turning on fully. Because they are slipping (so to speak) they overheat and are being destroyed. (they emit the magic smoke).

Senetor.

[postsol]

HI Thanos

I love your product

I'm good at mechanics not electronics. so I stand on your shoulders

I have read and read the thread many times
but I need your help
I have ordered some AS5145H-hsst encoder but have read that they should be program before they work correctly. how do I do it

sincerely,
torben
denmark

[Senetor]

Postsol,

you can get FREE samples from the manufactures Web page

http://www.ams.com/eng/Products/Magneti ... %28oi%29/1

and the special magnets that are used with them also.

AS5145H-HSST AS5145H-HSST SSOP16 LF
AS5000-MD6H-1 Diametric Magnet, D6x2

You can get 3 of each as Samples in each order.
I have made a small PCB for this chip it is on Page 27 of this post

viewtopic.php?f=39&t=132&start=260

Senetor.