Tronic H-bridge

by **Pablo** » Tue 21. May 2013, 22:38

The engines do not need as much power if the structure is balanced ... if it works with the atx power -supply try again a car battery
The wipermotors are 12 V ?

by **TheXRacer** » Tue 21. May 2013, 22:41

Yes the wipers are 12v 45watts , the car battery have the same volts 12V 35Ah

regards
Chris

by **Pablo** » Tue 21. May 2013, 22:48

I use some similar wipermotors with a 650 W ATX power supply.
With your battery would have to work well, try again ..

by **TheXRacer** » Tue 21. May 2013, 22:58

Unfortunately, it works with the car baterie short LED flashes briefly then goes from the H-bridge ( no funktion) .

...... :roll:

by **TheXRacer** » Tue 21. May 2013, 23:06

OK I switching to my ATX Power supply it works with this ! I have any Answer why not with my CAar battery

????????

The next big Prob i have the motors lose much power , can anybody help my to solved this ?

Big thanks go to Pablo !!!

best regards
Chris

by **TheXRacer** » Tue 21. May 2013, 23:13

Thanos do you can help my PLEASE !!! ????

regards
Chris

by **tronicgr** » Tue 21. May 2013, 23:19

There are many factors that make you h-bridge not work.

Some of them include non-isolated motors, too little resistance in DC motor coil, or even just if you grounded the car battery with the wiper motor(No ground is required, in fact its bad!!)

Thanos

by **TheXRacer** » Tue 21. May 2013, 23:24

Thank you ,

you can give my some tipps i will chacked it , and i can give you a feedback

.

what can i make to show you what is the reason to will the H-Bridge don´t work ?

Pictures, Videos or what kind of presentation my hardware Problem ?

regards
Chris

by **tronicgr** » Tue 21. May 2013, 23:34

Some detailed photos of the connections, the motor, the h-bridge... And if possible video of what happens when you connect the motor on the h-bridge...

by **RafBR** » Wed 7. Aug 2013, 18:35

Suddenly my dsmhb started to burn mosfets again. The same setup that was working for more than a year long.

Thanos, can a failure in the pwm or direction from AMC cause the h-bridge to fry or can I discard this possibility?

By the way my dsmhb worked for a long time with IRLZ44N mosfets.
They are very expensive and were not available yesterday on the stores near here.

So I might have one or another IRF3205 that I will test with the "Simple mosfet tester" that I am going to assemble today. If they are ok I will try on the HB.

Also I bought two IRLZ24N mosfets (I know its only 18A continuous, I will try 10A fuses) because it was the only available.

I will stick running some tests and will post the results here.

My regards!

Tronic H-bridge

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