sdobbie
- Date Joined:Dec 22, 2010
- Instructables:2
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- Comments:45
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» Add a camera to the kit to record the disaster.
» Now, if it were hydrogen gas you were using to power the engine, I would be interested.
» I suspect troll, but cool story bro.
» Then the door shuts just as the chicken goes in and it gets its head chopped off and yo…
» My one will not record to the tape. It just freezes and I have to turn it off. I played…
» I built the exact same timer relay kit today. It is a cit noisy though so I can't use i…
» How about horse poop instead?
» Gas is cheaper than petrol.
» You spelled ravioli wrong on the front of the case.
» Lego, not "Lego's".
» Now, if it were hydrogen gas you were using to power the engine, I would be interested.
» I suspect troll, but cool story bro.
» Then the door shuts just as the chicken goes in and it gets its head chopped off and yo…
» My one will not record to the tape. It just freezes and I have to turn it off. I played…
» I built the exact same timer relay kit today. It is a cit noisy though so I can't use i…
» How about horse poop instead?
» Gas is cheaper than petrol.
» You spelled ravioli wrong on the front of the case.
» Lego, not "Lego's".
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Jan 28, 2011. 8:33 AMtimdgoodpaster
says:
I used a 120 volt 3 amp mosfet, had to change resister to 33 ohms and used a nine volt battery. It pulls 1 amp from the battery. Battery doesn't last very long. A heat sink was needed on the mosfet.
Jan 28, 2011. 9:19 AMsdobbie (author)
says:
I think my mosfets are only about 10 amps. I have made a step up transformer driver and at 18 volts it needs a very large heatsink.
Jan 28, 2011. 3:56 PMtimdgoodpaster
says:
I did a setup again today using 24 volts input. Output 350 Khz and the scope showing 120 vpp open circuit. The wave form on the scope was a pure sine wave That impressed me.
To keep the heat down I used a 20 watt 24 volt light bulb placed at the input of the 24 volt power supply.
I then installed a bridge rectifer charging a 300 Mf cap. It took about 5 sec. to charge the cap to max voltage of 80 volts.
To keep the heat down I used a 20 watt 24 volt light bulb placed at the input of the 24 volt power supply.
I then installed a bridge rectifer charging a 300 Mf cap. It took about 5 sec. to charge the cap to max voltage of 80 volts.
Jan 29, 2011. 10:54 AMsdobbie (author)
says:
I charged up a capacitor out of a camera with my setup and it exploded before reaching its rated voltage.
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