Model 575 - How to generate a negative going pulses

21 Nov 2009

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	Model 575 - How to generate a negative going pulses

Solution The 575 outputs positive voltage pulses only, but occasionally one needs a negative pulse for triggering devices. It is possible to invert the TTL/CMOS with an inverting pulse transformer. Pulse transformers will limit the pulse width. For easy mechanical connection, a pulse transformer with BNC connectors at either end would be ideal.

BNC does not sell such a device, but a quick search for connectorized pulse transformers with BNC connectors yielded
http://www.phillipsscientific.com/preview/425pre.htm. This is an example of a small, packaged, in-line transformer that one should look for.

We have built a pulse transformer to confirm its effectiveness in generating negative pulses, however we have no commercial available devices at this time.

Article Details

Article ID:

148

Created On:

10 Feb 2009 05:55 PM