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4hv.org :: Forums :: High Voltage

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LAN_403

furnace

Tue Oct 08 2013, 09:31AM

Registered Member #4992 Joined: Wed May 23 2012, 03:57PM
Location:
Posts: 108

Hi everyone!
I'm trying to build a driver circuit for my induction heater. I'm using the schematic of mindchallenger. The problem is that I can't find the 2 quad op amps which is the LM3403. Are there any substitute op amps I can use? Another problem also, can I drive the TC4421 and TC4422 with the tl494 if I can't get substitute op amps because I can only find circuits with the tl494 driving the UCC37322 and the UCC373221. I've been searching the forum and can't find anything on this.
Thanks

Steve Conner

Tue Oct 08 2013, 09:59AM

Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706

You could probably use the LM324 in place of the LM3403. "Mindchallenger" hangs out here though so he might offer some advice.

furnace

Tue Oct 08 2013, 10:18AM

Registered Member #4992 Joined: Wed May 23 2012, 03:57PM
Location:
Posts: 108

Thanks steve and do you have any comments on the manual tuning circuit?

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