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Registered Member #3315
Joined: Thu Oct 14 2010, 04:23PM
Location:
Posts: 156
The accelerator coils are not on long enough to get even remotely close getting hot let alone overheating, the injector is another story. It is wound pretty aggressively and it alone will shoot the large projectiles over 10 feet! Which may be a little overkill.
Registered Member #3315
Joined: Thu Oct 14 2010, 04:23PM
Location:
Posts: 156
EVEN MORE
PICKED UP A 1940'S SHOP SMITH WHILE CLEANING OUT MY GRANDPA'S OLD BASEMENT THIS WEEKEND. PRETTY NICE SCORE ONCE I CLEANED HER UP A BIT. ESPECIALLY SINCE HE HAD ALL THE ATTACHMENTS.
Registered Member #3315
Joined: Thu Oct 14 2010, 04:23PM
Location:
Posts: 156
Having trouble getting my igbt's to turn fully on. 12Kohms? any suggestions? (ive tried a bunch of igbts with the same results). i am using tc422 drivers to energize the gate. The chip is turned on through my arduino mega
Registered Member #2906
Joined: Sun Jun 06 2010, 02:20AM
Location: Dresden, Germany
Posts: 727
"Having trouble getting my igbt's to turn fully on. 12Kohms? any suggestions?"
What? 12Kohm relating to... what!? No schematic. No explaination. The TC4422 is not verry robust concerning overvoltage if thats its output resistance its killed allready. Be carefull with that. What else could 12KOhm mean? Not the gate resistor, right? If you used a 12K-Resistor on HV as a test load and the 12K are a wirewound resistor you probably be carefull with your IGBT. if the 12K are... the hell... whats about 12K. WHERE?? any suggestions?? and btw: what means "fully" on to you? If you turn your IGBT on and measure the resistance between emitter and collector - depending on your multimeter the reading 12K makes sense, however you are testing bullshit.
Whats your Gatedrive voltage, whats your IGBT model, whats the values you expect, what did you measure.
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V3 Coil Carbine
