I am not very well versed and does not have a background with electronics but my passion for robotics keeps me moving ahead.
Which is better H-bridge among L293, L298, HG7881 and L9110S. I tried searching on Google but for no help as I could not understand those terminologies completely.
If someone can explain in simple terms, that would be really helpful.
As with all things, which is better h-bridge depends on how you measure "better".
better = cheaper?
better = higher max current?
better = lower voltage drop?
...
The L29x are rather well known, mostly not the first choice. Can You post links to the darasheets of the last two ones?
All of those use bipolar transistor technology, and very inefficient (waste a large fraction of the battery power as heat, reducing power to the motors) compared to MOSFET H-bridge motor drivers. Pololu has the best selection.
L293D heats up, sometimes burns. I just want an alternate cheaper one which does not happen like this.
Would DRV8833 be suitable for your motors?
DRV8833 uses MOSFETs and should be much more cool and efficient, I think.
The HG7881 and the L9110 are basically the same chip.
Same old technology as the L293, but for one instead of two motors.
You get what you pay for.
It seems the shop you linked to has this mosfet driver board (click).
Leo..
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