.:madworm:.'s photos

To save a full H-bridge, they just wound two coils onto the core. It is driven by 2 MOSFETs in a small chip (TPC8211).

Although there is an O-ring, some water seems to have made it in there. Damn. This toothbrush was quite costly.

Layered sheets of iron for less eddy currents.

You're supposed to dismantle the toothbrush before you throw it away. And having to throw it away, just because a minuscule chip that makes up just a few percent of the whole thing has failed is a disgrace as well. I probably couldn't get a replacement for it, even if I tried hard. "Please extract the NiCd battery..." They didn't make it very easy to comply though. I almost got insane to open the body, my hands still hurt.

It refused to charge its battery properly, so I opened it up. What I found didn't make me happy. Seems I need a new one, but I need the money for more important things right now.

It refused to charge its battery properly, so I opened it up. What I found didn't make me happy. Seems I need a new one, but I need the money for more important things right now.