This is a sticking point for me - I think that any 'weird' part should
have its power and ground pins displayed on the schematic icon.
Otherwise, people will have doubts about your competence after you're
dead and not able to defend your decisions.
But yes, Jeff was a very good engineer, even if he was a bit secretive
about his products.
On 5/12/16 5:49 PM, 'Terry S' via neonixie-l wrote:
It's not even a schematic error. Jeff used OrCad Capture, and Capture
allows one to hide power & gnd pins. As long as they are named the same
as the power & gnd nets, they get assigned to those nets and
connectivity is established. They can also be made visible and assigned
manually to any net, and there are other ways to establish connectivity.
And as Pete pointed out, the HV5530's work down below 5 volts, so no
level shifters are necessary. This is not a design problem.
I worked with Jeff on some projects -- he was a talented and skilled
engineer. He knew how to use the tools.
His designs were well thought out and implemented.
Terry
--
David Forbes, Tucson AZ
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