I a 20vdc power supply and I've tried rewinding a MOT with 12g wire that has insulation on it but I can only get about 17.2v max due to the space the insulation takes up. I have a very large role of 17ga magnet wire/enamelled (probably close to 3,000 ft) and from my calculations 3 strands = 12 ga, 4 strands = 11ga and 5 = 10ga 6 = 9ga. I'm nost worried about the AC to DC conversion. i've read that I have to multiply the AC voltage by 1.41 or divide it by .68 or .71 or something to get the DC voltage after rectification. This is important to know before I wrap my wire, b/c if I have 17.2v AC from my first wrapping that would mean I have ~24v after rectification if the 1.41 number is accurate.
I need a bench supply for 20v battery powered tools. I've made converters out of old battery packs where I just plug the power wires into the pack (no batteries) and it feeds the tool. Works great for larger jobs at the bench, especially with high amperage tools.
I have 4 25A full bridge rectifiers (rated to at least 250v), they are identical, so I figured I would use these as well as some 35v or 50v caps to smooth the output.
I am very confused at the voltage conversion when going from AC to DC as I've been told that I have to multiply by 1.4 or divide the voltage by .63 or .68 or something to get the actual DC voltage output after rectification. If this is true, they messes up all my numbers (length of wire needed) so I need to know this for certain before starting.
Also, I have the option of running all the wires together all at once (so 4-6 being wound all together), wind one section, then another section, then another, etc. I could twist them into a thicker wire, but that would make it very difficult to bend around the 90 degree turns and I think is a bad idea. I like the idea of running one at a time, then doing another, but IDK if that will effect the voltages on each wire so if the first wire (closest to core) has 13 turns and the 6th wire has 11 turns (because previous wires made the core larger to wrap around), but they are all the same length, will I get different voltages in the wires?
I can't see a reason why running multiple strands together wouldn't work but it leaves me with an interesting dilemna.
P = parallel S=Series so 2P/2S means 2 wires paralleled & 2 wires Series'd
4 wires: 4P = 20v, 2P/2S 40v (1/2 amperage), 4S = 80V 1/4 amperage
6 wires: 6P = 20v, 3P/2S 40v @ 1/2 amperage), 2P/3S = 60V @ 1/3 amperage
I could do 5 wires and still get the same results with the 4 wire setup, just remove one wire from the series/parallels set but when they are all paralleled I get more amperage. I'm sure there are more options like doing 100v and 120v with the 6 wire setup, but with that, I can basically do that with rectifying 120 from the wall.
I need a bench supply for 20v battery powered tools. I've made converters out of old battery packs where I just plug the power wires into the pack (no batteries) and it feeds the tool. Works great for larger jobs at the bench, especially with high amperage tools.
I have 4 25A full bridge rectifiers (rated to at least 250v), they are identical, so I figured I would use these as well as some 35v or 50v caps to smooth the output.
I am very confused at the voltage conversion when going from AC to DC as I've been told that I have to multiply by 1.4 or divide the voltage by .63 or .68 or something to get the actual DC voltage output after rectification. If this is true, they messes up all my numbers (length of wire needed) so I need to know this for certain before starting.
Also, I have the option of running all the wires together all at once (so 4-6 being wound all together), wind one section, then another section, then another, etc. I could twist them into a thicker wire, but that would make it very difficult to bend around the 90 degree turns and I think is a bad idea. I like the idea of running one at a time, then doing another, but IDK if that will effect the voltages on each wire so if the first wire (closest to core) has 13 turns and the 6th wire has 11 turns (because previous wires made the core larger to wrap around), but they are all the same length, will I get different voltages in the wires?
I can't see a reason why running multiple strands together wouldn't work but it leaves me with an interesting dilemna.
P = parallel S=Series so 2P/2S means 2 wires paralleled & 2 wires Series'd
4 wires: 4P = 20v, 2P/2S 40v (1/2 amperage), 4S = 80V 1/4 amperage
6 wires: 6P = 20v, 3P/2S 40v @ 1/2 amperage), 2P/3S = 60V @ 1/3 amperage
I could do 5 wires and still get the same results with the 4 wire setup, just remove one wire from the series/parallels set but when they are all paralleled I get more amperage. I'm sure there are more options like doing 100v and 120v with the 6 wire setup, but with that, I can basically do that with rectifying 120 from the wall.