« first day (3541 days earlier)      last day (1397 days later) » 

Nick Alexeev
Nick Alexeev
3:53 PM
Folks, are there small PLDs on the market that are in-circuit programmable?
They don't have to be sophisticated inside. A 20ish-pin PAL (and even GAL) would do it for me.
On the other end of the spectrum, a small FPGA with an on-board configuration memory would do it too.
Package no worse than QFN.
The smallest CPLD that I could find is 44-pin QFP.
 
The Photon
The Photon
4:46 PM
@NickAlexeev I think there are still some PALs or GALs available, maybe from Lattice. I don't know if they've updated their packaging or anything else in the last 20 years.
And Altera has some pretty small FPGAs that they call CPLDs. I don't know what the minimum price point is.
 
Scientist Smith YT
Scientist Smith YT
5:23 PM
@rdtsc I am watching this instructor from the college I'm attending. And he said on a battery the cathode is negative and the anode is positive. But yet this site says differently. And I also think it is different than what the instructor said. batteryuniversity.com/learn/article/….
@rdtsc Is the instructor correct or is he incorrect? Because when he said it I was think nope that doesn't seem right.
 
The Photon
The Photon
6:09 PM
Cathode
A cathode is the electrode from which a conventional current leaves a polarized electrical device. This definition can be recalled by using the mnemonic CCD for Cathode Current Departs. A conventional current describes the direction in which positive charges move. Electrons have a negative electrical charge, so the movement of electrons is opposite to that of the conventional current flow. Consequently, the mnemonic cathode current departs also means that electrons flow into the device's cathode from the external circuit. The electrode through which conventional current flows the other way, into...
Some people will say the cathode is whichever terminal current is leaving at any particular time (so one terminal is the cathode during discharge, and the other terminal is cathode during charging). Other people will say the cathode is the terminal where the current leaves during normal operation (discharging) and continue to call that terminal the cathode during charging.
Long story short: different people use the term differently, so you can't really count on it meaning anything in particular.
Particularly when the battery is being charged.
 
 
2 hours later…
Scientist Smith YT
Scientist Smith YT
8:03 PM
@ThePhoton Oh! That makes a lot more sense. Thanks :)
 

« first day (3541 days earlier)      last day (1397 days later) »