<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Must you actually charge it with the oscillator, or are you simply attempting to generate a time-dependent voltage on the capacitor? If you're using a TTL oscillator module, it might be outputting a 5V square wave. This would allow you to charge a peak-detector circuit (diode inline to capacitor connected to ground, optional drain resistor) to within maybe 0.6V below VCC. This will be harder if you're trying to connect directly to an oscillator circuit without an output buffer.</div><br><div><div>On Sep 12, 2013, at 10:00 AM, Johny Radio <<a href="mailto:johnyradio@gmail.com">johnyradio@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
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hi circuit geeks<br>
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i'm trying to charge a capacitor over the course of a few seconds
with the output of a crystal oscillator. Please send me suggestions
on how i might achieve this. The xtal is running at megahertz
frequencies. <br>
<br>
Thx <br>
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<small>Johny Radio<br>
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