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 91 
 on: July 14, 2020, 12:04:04 00:04 
Started by LithiumOverdosE - Last post by optikon
Looks like the default path length is 1cm did you change it to what you need?

Additionally, if you specify a coupling K, say 0.98 does the BH curve look like you expect it to?

 92 
 on: July 13, 2020, 09:35:59 21:35 
Started by LithiumOverdosE - Last post by LithiumOverdosE
I'm struggling to properly simulate transformer (on ETD34 former) with 3C94 magnetic cores.
Compared with the real life circuit on the test table the simulated magnetic transformer exhibits much lower magnetization current and way too low current on the secondary side load.
I guess that it may indicate that either Micro-Cap model of 3C94 is wrong or that I'm not setting all the parameters correctly (AREA and PATH).

I assume that Micro-Cap 3C94 core model is correct, so I was wondering if anyone successfully simulated the behaviour of some standard size ferrite transformer (like ETD34/3C94)?
Are there are some guidelines which should be observed?

 93 
 on: July 13, 2020, 05:47:40 17:47 
Started by ajith - Last post by pushycat
Why not use the 74HC595 serial to parallel shift register??
Yes i would suggest the same. Just using shift register behind every display and any number of displays can be driven with just 5 pins including power. For reference, have a look at this shared project

https://www.pcbway.com/project/shareproject/W14332ASZ1_Project_Outputs_for_7segment_Shift.html

 94 
 on: July 13, 2020, 01:31:24 13:31 
Started by ajith - Last post by ratovarius
Another good display driver is HT16K33 from Holtek - https://www.holtek.com/productdetail/-/vg/16K33

 95 
 on: July 12, 2020, 02:31:11 14:31 
Started by gtboy2020 - Last post by pickit2
the link is dead. Please re upload.
Thanks
you did not take heed of last warning.

now your on a long time mute.

Any thing you need try Google.

 96 
 on: July 12, 2020, 02:03:44 14:03 
Started by rodos2006 - Last post by sfiga69
rhinoceros 6.27.20176.05001

 97 
 on: July 12, 2020, 01:54:10 13:54 
Started by ajith - Last post by sadman
Why not use the 74HC595 serial to parallel shift register??

charliplexing when you want to keep your design tidy or you never want to add any chip

 98 
 on: July 12, 2020, 01:42:46 13:42 
Started by gtboy2020 - Last post by gtboy2020
the link is dead. Please re upload.
Thanks

 99 
 on: July 12, 2020, 11:23:33 11:23 
Started by ajith - Last post by jzaghal
Why not use the 74HC595 serial to parallel shift register??

 100 
 on: July 12, 2020, 10:48:18 10:48 
Started by ajith - Last post by kripton2035
+1 for cheap led driver. TM1638 if for driving up to 8 digits and a keyboard simultaneously.
I would use direct transistor drive only for less than 4 digits.

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