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Re: LF: Sine wave/Sq wave

from [DK7FC] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: Sine wave/Sq wave
From: DK7FC <[email protected]>
Date: Fri, 07 Sep 2018 22:15:11 +0200
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Hi Mal,

The Schmitt-trigger could deform the duty-cycle of the the signal, which can be very critical for some kind of PAs :-) I often use a simple OP AMP and amplify the signal so that the OP AMP is clipping. Not the perfect way maybe but it worked just last weekend where i drove the H bridge that way from a low audio signal coming from the PC.

73, Stefan

Am 07.09.2018 16:20, schrieb [email protected]:
LF/MF
Someone was asking about converting sine wave to Sq wave recently from a TS590 to drive an Amplifier
Feed the DRV output sine wave  from the TS590 to a Schmitt triger cct and then use a Direct Amplifier similar to the Decca 5501 class D bridge amp.
I use this method on LF es MF and never had a problem.
 
73 gl de mal/g3kev
 
 
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