- #1
AndrewBourhis
- 29
- 0
Hi all,
I need to create a circuit for displaying something onto an analog oscilloscope screen. I have determined it will be best to use a raster scan generator (essentially a linear ramp generator). I am wondering what might be the best way to design such a circuit in order to allow for variable frequencies.
Something like this, but capable of varying the frequency (maybe by having a pot. somewhere?) I am still unsure exactly how a 555 timer works its magic, so maybe some explanation would help too...
http://gsuryalss.files.wordpress.com/2011/05/sawtooth-wave-generator.gif
Thanks so much
I need to create a circuit for displaying something onto an analog oscilloscope screen. I have determined it will be best to use a raster scan generator (essentially a linear ramp generator). I am wondering what might be the best way to design such a circuit in order to allow for variable frequencies.
Something like this, but capable of varying the frequency (maybe by having a pot. somewhere?) I am still unsure exactly how a 555 timer works its magic, so maybe some explanation would help too...
http://gsuryalss.files.wordpress.com/2011/05/sawtooth-wave-generator.gif
Thanks so much
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