[ebarker]

Look at figure 8. That is basically the way you hook it up.

source, sink notation - Source is where the current comes from, like the source of a river. Sink is where the "used up" current goes after it passed through the load.

But an H-Bridge can swap source and sink around, hence the notation in figures 7 and 8 as out1 and out2.

If you were playing with a battery with a light bulb across it, in EE network theory if you were to say the current is +3 amps, the current flow is from plus to negative. If you were to say it is -3 amps, the current flow is from negative to plus.

Back in the days of Benjamin Franklin when they were coming up with the ideas about current flow, it was theorized that current went from plus to minus (anode to cathod). He had a 50/50 guess, and guessed wrong.

Physically, the electron flow really goes from negative to positive. Backwards from the way a network theorist represents it.

But all that is getting a little off topic but I though it would be neat to have the history lesson.

Just view it as a network theorist. Source provides current, sink sends it away, and an H-Bridge can swap source and sink around. See figure 7, 8.

Ed