The output is definitely filtered for DC, but you will need to add further filtering to have low noise.
Thank you. I just checked LTSPICE, and I found what kodabmx say is correct. CLC with 0.01H choke or CRC 620ohm seems work well as 40Khz filter. I'll buy this module and see how it performs in real world. 🙂 I got several 6P15P for gain stage.
Thank you, guys.
One more question. 10mH choke can be something cheap like this? It'll be 100mA at most, so I guess this is fine.
Epcos Power Line Choke B82731M2112A30 10MH 1.1A NEW (2 Piece Lot) | eBay
One more question. 10mH choke can be something cheap like this? It'll be 100mA at most, so I guess this is fine.
Epcos Power Line Choke B82731M2112A30 10MH 1.1A NEW (2 Piece Lot) | eBay
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The Stancore choke is huge, intended for 60/120 Hz. You don't want that one.
You can try the small one, but I would use a CRC filter.
You can try the small one, but I would use a CRC filter.
Thanks, I realize Stancor one is 8A. 😱 I would like to to have up to 420V after filter, so CLC seems to be the only option for 450V DC converter.
There are lots of capacitors rated at 500V and up, depending on the value.
A film type would probably be used here, so a 600V noninductive polypropylene would be ok.
Keep in mind, this DC supply seems to like to oscillate, so while I agree with CRC filter, consider the puny 10uF (is it that much?) cap on the board as the first C in the filter. YMMV but it seems to tame to oscillations.
This is the main reason I scrapped the idea of using adjustable supplies like these in favour of simpler fixed voltage designs 🙂
Those 80uF caps are great BTW. Use them at the circuit end of the power supply.
This is the main reason I scrapped the idea of using adjustable supplies like these in favour of simpler fixed voltage designs 🙂
Those 80uF caps are great BTW. Use them at the circuit end of the power supply.
kodabmx, I happened to find your 440V inviter also accept 24V, so I would follow your path. 🙂 (I thought it only accept 12V.)
500W Inverter DC 12V-24V to AC 180V-220V-380V Step-up Booster Board DIY Module 602747538664 | eBay
For filter, UF diodes, following 1000u-1R-80u should work OK? I would appreciate it if you have any advice using this inverter. Thank you.
500W Inverter DC 12V-24V to AC 180V-220V-380V Step-up Booster Board DIY Module 602747538664 | eBay
For filter, UF diodes, following 1000u-1R-80u should work OK? I would appreciate it if you have any advice using this inverter. Thank you.
This inverter runs on 12V. 24V will double it's output and make it run hot...
I use this one since it has the heatsink included. 500W 12VDC transfer 18VAC & 0-220v-380v inverter module | eBay
I run HER208 or UF5408 into 470-3300uF. No second stage for PP output stage, 2k/47u for front end.
There is also this one at 1000W: DC-AC High Frequency Inverter 1000W DC12/24V To AC220V 330V 380V 420V DC To AC | eBay
It says "Can be used as a pure sine wave, repair sine wave, single silicon machine, four silicon fore-step boost inverter cir" but I really doubt it's not square wave output.
I use this one since it has the heatsink included. 500W 12VDC transfer 18VAC & 0-220v-380v inverter module | eBay
I run HER208 or UF5408 into 470-3300uF. No second stage for PP output stage, 2k/47u for front end.
There is also this one at 1000W: DC-AC High Frequency Inverter 1000W DC12/24V To AC220V 330V 380V 420V DC To AC | eBay
It says "Can be used as a pure sine wave, repair sine wave, single silicon machine, four silicon fore-step boost inverter cir" but I really doubt it's not square wave output.
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You're welcome... I strongly suggest using a modern ATX... It'll actually work at it's rated output 🙂
Old supplies have an emphasis on 3.3V... Modern supplies usually have a single 12V rail... Just read the nameplate to find out if it can work for you.
Thank you, but it's an obscure Dell supply removed from junk PC, and I bought a 12V Meanwell.
BTW, I was reading about common noise and EMC filter for SMPS today. Do you think I should consider to add EMC filter before and after inverter? The switching frequency seems to be much lower than regular SMPS, so the story would be different, though. Meanwell 12V have EMC filters before and after conversion.
BTW, I was reading about common noise and EMC filter for SMPS today. Do you think I should consider to add EMC filter before and after inverter? The switching frequency seems to be much lower than regular SMPS, so the story would be different, though. Meanwell 12V have EMC filters before and after conversion.