Quote Originally Posted by lucas View Post
- The diodes on the my THB6064 design didn't have much effect, this chip is similar so I don't think you will gain much, maybe a few degrees temperature reduction, not worthwhile to install them.
In the datasheet TB6560 or TB6600:
I do not see, if the IC has included (buildin) the diodes.
THB6064 included buildin the diodes?

Why would anyone in their h-bridge design include diodes?

Why desiden others that are not important?

Using them Prolongs transistor ?

Do not use them, gradually deteriorates transistors?
soft deterior?

Do not include a way to slowly deteriorate the circuit, so that at some point the customer having to buy another?

Exactly what happens and we're talking about?

Well I do not know much about electronics,
I read a bit, and then hise some calculations:

With 3Amp motor and 7 mH.

Time off transistor, switching transistor Output characteristics (time tf)
TB6560 is 1.0 ms = 0.000001 sec.
TB6600 is 0.5 ms = 0.0000005 sec.

The spike volt = H * A / sec.

With TB6560 = 0.007 * 3 / 0.000001 = 21,000 Volts
With TB6600 = 0.007 * 3 / 0.0000005 = 42,000 Volts

Please review these calculations, it could be a mistake.
I do not know whether that voltage is enough to make a arc.

I do not know how to calculate the duration of the peak,
I would like to know how to calculate it.
Also like to know how to calculate the peak current (ampere).
Maybe then I could choose a diode or decide not diode.
What is the best diode for this?
How as you do for deciding not to install diodes?
you, as you do?

I wish I knew.

My doubts are multiplied exponentially. -LOL-