On Thu, 2005-09-29 at 15:23 -0700, Harold Hallikainen wrote:
> I have an application where I need to drive a diaphragm pump (like those
> used in aquariums) from low voltage DC (battery). Here in the US, these
> pumps are mechanically tuned to run directly off the 60 Hz line. A single
> coil on a core moves an armature that has a couple magnets on it. The
> armature moves back and forth at 60 Hz, vibrating the diaphragm.

This may be too simple, but why not just purchase an inverter? It sounds
like this device doesn't use that much power, and inverters of smaller
wattages are very cheap these days.

TTYL

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