Electronics > Beginners

4017 IC Driving LEDs Using Only One Resistor

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Audioguru:
Your simulator program might not know what happens to your LEDs with 10V of reverse voltage.

HandyAndy:
Yeah that's why in the others I usually ground the MR pin.  That doesn't effect the simulator by the way but good tip I remember seeing that in the data sheet.
Thanks I am also thinking something with the simulator just isn't right all of a sudden. 

HandyAndy:
Ah-ha!  Eureka!  I figured out the issue.   So I had a working circuit and then decided to select the whole thing and right-click and then clicked on "Block Copy" to place another one next to it.  Then i ran the simulation and had issues.  Then I deleted what I had just copied and started over only this time I used "Copy to Clipboard" instead of "Block Copy" and then both worked just fine.  What exactly is the purpose of "Block Copy" vs. "Copy to Clipboard"?  All I know is I gotta remember never to do that again.
 

HandyAndy:
Have a look it works!  :)  Thanks anyway guys.

digsys:

--- Quote from: HandyAndy --- ... What exactly is the purpose of "Block Copy" vs. "Copy to Clipboard"? ....
--- End quote ---
Easy. "Block copy" will automatically increment all part Ref#s to next available, so no duplicates. "Copy to clipboard" will duplicate all part Ref #s

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