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Subject: Re: Video Sync Inverter.

Date: 09/08/02 at 12:50 PM
Posted by: Brian Snell
E-mail: bsnell@lara.on.ca
Message Posted:

In Reply to: Video Sync Inverter. posted by gary on 08/04/02 at 11:31 AM:

Greetings. If you want to use a transistor, wire it up with equal collector and emitter resistors (around 10K). Depending on the base drive (can it be directly DC coupled or is it fed via a capacitor), you may have to experiment with some biasing, but at least the output will be one polarity at the collector, and the opposite at the emitter. I am assuming that you already have good clean sync available as a driving source. Choice of transistor is not critical and whether NPN or PNP would depend on how the rest of your circuit has been designed.

Hope this may be helpful.

BS.


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