| General > General Technical Chat |
| Info & help on Quick 881D 110v to 220v |
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| Sapsford55:
Hi does anybody know whether the power board (856D powerdrive V2.8) is dual voltage? I have acquired a 110v version with the USA plug directly wired and I have searched the internet to see if it's compatible with 220v (label on the case 110v). However, I have seen several teardowns of the 220v version and all the components appear to be the same with the same ratings. I know I should just buy a step-down transformer but at 1300w (and a generous PF of 0.7 for a switchmode power supply) it would require at least a 1875VA transformer and probably bigger that is a meaty and heavy tranny! Whereas if it's just a matter of replacing the plug? If I used an auto-transformer and slowly raised the voltage anybody have any ideas how I analyse the performance to detect failure before it happens! E.g. current draw FET/TRIAC temp etc Any help will be great Thanks |
| wraper:
Dunno about board but you certainly will need to change heater if plan using it on 230V. This board seems to use split supply as in older ATX PSUs that works as voltage doubler when powered from 120V by changing switch position. Capacitor voltage rating is the same. So there might be some jumper on PCB which allows to change voltage. Also optocoupler circuit for mains zero crossing sense might need resistor value change or something like that. |
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