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Old 7th January 2004, 03:09 AM   (permalink)
Default "Slow switch ramp up?"

Can anyone help me with this? It's basically converting a square wave to a triangle, you're slowing down the ramp up. Basically I want to hit the switch and have a delayed onset of it... I'd use a capacitor, but I want it to be linear. I've tried just using a standard square-to-triangle converter but it didn't work too well. Any ideas?

-Colin
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Old 7th January 2004, 03:31 AM   (permalink)
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Use a constant current source to charge the capacitor. That will make the ramp linear.
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Old 7th January 2004, 04:15 AM   (permalink)
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Sounds too me like you want to push on a switch and have a delayed
reaction to a circuit. If this is the case you want a one shot multivibrator.
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Old 7th January 2004, 04:36 AM   (permalink)
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Quote:
Originally Posted by Russlk
Use a constant current source to charge the capacitor. That will make the ramp linear.
Wouldnt I need to then recharge it every time I wanted to flip the switch on or off?

-Colin
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Old 7th January 2004, 03:20 PM   (permalink)
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Quote:
Originally Posted by expanoncolin
Quote:
Originally Posted by Russlk
Use a constant current source to charge the capacitor. That will make the ramp linear.
Wouldnt I need to then recharge it every time I wanted to flip the switch on or off?

-Colin
Yes, I don't know what you are trying to do, more explaination is needed.
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