| Electronics > Beginners |
| A niche chip (LT4320) for mains powered AC -> low volt DC "linear" based psu ? |
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| M. András:
i would love to see carry more then a few amperes by those ethernet cables :D |
| tszaboo:
--- Quote from: M. András on January 23, 2014, 09:36:28 pm ---i would love to see carry more then a few amperes by those ethernet cables :D --- End quote --- It is rated for 0.6A Voltage about 60-70V though. |
| M. András:
--- Quote from: NANDBlog on January 23, 2014, 11:21:49 pm --- --- Quote from: M. András on January 23, 2014, 09:36:28 pm ---i would love to see carry more then a few amperes by those ethernet cables :D --- End quote --- It is rated for 0.6A Voltage about 60-70V though. --- End quote --- sorry i meant to be sarcastic. i know their ratings flimsy little signal cables thats what they are for me |
| tszaboo:
--- Quote from: M. András on January 23, 2014, 11:28:29 pm --- --- Quote from: NANDBlog on January 23, 2014, 11:21:49 pm --- --- Quote from: M. András on January 23, 2014, 09:36:28 pm ---i would love to see carry more then a few amperes by those ethernet cables :D --- End quote --- It is rated for 0.6A Voltage about 60-70V though. --- End quote --- sorry i meant to be sarcastic. i know their ratings flimsy little signal cables thats what they are for me --- End quote --- OK, I should go to sleep. Jóéjt. |
| necessaryevil:
--- Quote from: digsys on January 11, 2014, 10:08:13 pm --- --- Quote from: necessaryevil --- Well, I meant the PCBs could handle 15A (calculated, conservative settings) --- End quote --- Did you use 4oz Copper? Any other "tricks"? Exposed section/over-solder/silver-solder/wire over tracks? --- End quote --- The only trick is that I use copper planes on both sides of the pcb. For the DC path I use about 2x300mil. The copper layers are only 1oz/ft^2. I'm not really going to use them for 15 amp, just a design goal. I used this calculator: http://circuitcalculator.com/wordpress/2006/01/31/pcb-trace-width-calculator/ Some images: I just have sent the second version of my layout to Itead. I've received the v1 pcbs and got them working, but I realized that I made some misstakes. The holes for the input and output wires are too small and I forgot to connect one plane (resulting in current flowing through only one side of the pcb). //edit legenda: Green = bottom layer Red = top layer Yellow = both layers the white squares are for the wires. They have a 3.2 mm hole in them (m3 screw), which is not visible in the pictures. size: 50x50 mm (about 2"x2") |
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