H bridge

hello! i have a problem with h bridge. i use dc motor and i dont know how to power up h bridge, becuase the dc motor is 3-6v and if i power up the h brige with 6 v on +12 v pin and the +5v(output) is not connect, the motors dont work. but if i wire +5v to 5v(arduino 5v) works very well.. but +5v is output and i dont understand why? I need to use more voltage to power up? More than 6V?

You need to post a link to the datasheet for your H-bridge. There are hundreds of different models.

...R

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