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Description: Electronic circuit design.
 

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By earner  - 12:03pm - 1 new of 1 message    

CD4060 Xtl Osc. Circuit 
  I have copied the CD4060 part of the CMOS synthesizer in the link below to the letter, but it does not work. I am using a 12VDC SLA for supply. It tries to start when I tease the caps, but then dies. I've spent hours tinkering to no avail. Can anyone see what is might be going amiss? Or can anyone please provide a similar circuit that... more »
By Steve Upton  - Mar 12 - 10 new of 10 messages    

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By ashish.se@gmail.com  - Mar 12 - 1 new of 1 message    

Sequential Machines in LTSpice 
  I want to make a behavioral model of a power supply controller (a vastly simplified UCC28060). I want to do things like trigger a one-shot whenever a voltage drops below zero. Does anyone have a favorite way to do this? I'm thinking voltage -> comparator 1 -> 'S' on SR flip-flop -> Q* to gate of FET -> that shorts a current source -> that charges a cap ->... more »
By Tim Wescott  - Mar 12 - 3 new of 3 messages    

Electrochemistry: Liquid Power Resistor for 2000VAC 
  ...Why not experiment with it since you already have the setup? Try putting a 100k res in series and measure the voltage. Sweep up to 200VAC and see if the volage devates from 100VAC at the divider. I imagine if the liquid gets hot the resistance will change so you might try an ice bath. You could then try with and without the ice bath and find the... more »
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