 Gate driving
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ben106
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Wed Mar 05 2008, 04:01PM
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Registered Member #1374
Joined: Tue Mar 04 2008, 04:14PM
Location: Switzerland
Posts: 10
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Hi,
Did anyone use the IR2109 half-bridge driver instead of a gate drive transformer ? With how much success ?
Would there be a big difference if I use a GDT instead of this chip ? Maybe better waveforms ?
Thanks !
Ben
]ir2109.pdf[/file]
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HV Enthusiast
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Registered Member #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
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That chip is worthless for driving the loads typically seen in solid state Tesla coils. It can drive 125mA-250mA max current. The drivers typically used are 9A output such as in the UCC3232x chips.
When evaluating a gate driver, you need to look at either the output current capability or output resistance of the driver.
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ben106
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Registered Member #1374
Joined: Tue Mar 04 2008, 04:14PM
Location: Switzerland
Posts: 10
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ok, thanks !
That's probably the reason why my induction heater isn't that efficient and my Tesla coil doesn't really output something... I'll try with a GDT and UCCs.
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