I was wondering if there is a simple way to make a power inverter (DC to AC) that is solid state, and does not use a coil. Actually, I'm not sure if there is a difference, but "pulsing DC" might be more what I'm thinking. I don't necessarily need the current to flow in reverse, but just to rapidly (that is, minimum 1 Hz) turn on/off. I looked at Wikipedia, and "http://en.wikipedia.org/wiki/File:H-bridge_inverter_cjc.png" [Broken] might be what I'm looking for, but I can't figure out what to connect the base of the transistors to. Any ideas would be appreciated. Thanks.