Greg Bentzinger pravi:
> I'm putting a small H-bridge together using TIP121/126 to replace a
> SN754410NE. The schematic I'm following didn't list any values for the
> flyback diodes. In fact some examples left them out. I know that when this
> circuit is in use it switches from full forward to
Stall current is the answer, since the full motor current goes through
the diodes in the off phase
The voltage is supply voltage with a margin.
And make sure they are high speed diodes since with a small deadband
the rails will short in the reverse conduction spike of the diodes.
Jan.
On Sun, Ma
I'm putting a small H-bridge together using TIP121/126 to replace a SN754410NE.
The schematic I'm following didn't list any values for the flyback diodes. In
fact some examples left them out. I know that when this circuit is in use it
switches from full forward to full reverse with no ramping. T
