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Re: LF: RE: 73kHz tests tonight

To: [email protected]
Subject: Re: LF: RE: 73kHz tests tonight
From: "Petr Maly \(Seznam\)" <[email protected]>
Date: Wed, 13 Jun 2001 10:25:16 +0200
References: <[email protected]>
Reply-to: [email protected]
Sender: <[email protected]>
Could TC4428 be keyed in G3YXM design? If so, it would simplify the whole

Petr, 'FIG

----- Original Message -----
From: Talbot Andrew <[email protected]>
To: <[email protected]>
Sent: Wednesday, June 13, 2001 9:43 AM
Subject: RE: LF: RE: 73kHz tests tonight

One option would be to use the TC4428 driver chip.  This has one inverting
and one non inverting driver.   Drive both inputs in parallel and connect
the FET driver transformer primary, now with twice as many turns, between
both outputs.  That way you can double the drive capability without
into the problems with the unequal switching times that can give trouble
when trying to parallel up two devices with totem pole outputs

Andy  G4JNT

> -----Original Message-----
> From: James Moritz [mailto:[email protected]]
> Only real problem so far was getting the gate driver to work - even
> with both sections of a TC4427 driver IC in parallel, the drive
> waveform had rather slow edges when feeding the 4 large-
> geometry FETs in parallel,

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