15 Threads found on edaboard.com: 220v Ac To Dc Converter
I mean in the input side of rectifier circuit, we use a transformer.
Why that transformer is used?
1. to provide isolation
2. to drop the voltage to the desired amount(s).
You can use a DC-DC converter but what is the point. For example, if you have 220v AC available and you need 12V, you can drop it in a transformer, rectify it and
Power Electronics :: 05-21-2016 03:48 :: betwixt :: Replies: 4 :: Views: 147
Hello every body I would like to make a DC-AC 220v from 12VDC I want to use at the output the MOSFET F3205 (six of them) or replace those ones with the IGBT
6W20NC60VD (2 of them which makes a half wave DC-AC converter);between those two stages of MOSFET and IGBT i want to use the High frequency transformers;can you plz help me to think how inter
Power Electronics :: 07-31-2013 12:06 :: john120 :: Replies: 0 :: Views: 694
I need a transformerless power supply. 220v AC 50Hz to 12, 15 or 20V DC. I found a circuit and just saw this converter LNK306GN. I get the chip and try the circuit but i cant get the DC voltage. You can see my schematics that i've attached.
Firstly, i tried not to use zener. In application note (AN37) it says for buck convert
Professional Hardware and Electronics Design :: 01-05-2012 05:19 :: ajanogi :: Replies: 1 :: Views: 2623
If you want to generate from 220v AC. First, please use a full-bridge and LC filter to rectify it to a croase DC. Then use a flyback AC-DC converter to generate 50V, 3A output.
Analog Circuit Design :: 05-21-2011 00:10 :: leo_o2 :: Replies: 13 :: Views: 3460
I'm trying to integrate my generator into grid thru. a AC/DC/AC converter and then a choke. My generator is: 220v, 7.5HP, 21A. DC bus is 400V. Suppose only 30% of nominal power transferred to grid, what's the current requirement on choke current on each phase?
Is it like, 7.5*746*30%/400=4.2A ??
Also, how to choose choke inductance value?? Just r
Power Electronics :: 05-13-2011 13:59 :: yzou_ua :: Replies: 1 :: Views: 1044
1. For AC-DC conversion, the ripple is difficult to compress. But in DC-DC conversion, that is easier.
2. Telecomm equipment always use -48V DC, that is safe to human body. But AC, say 110V or 220v, is dangerous to operator.
RF, Microwave, Antennas and Optics :: 12-16-2010 00:52 :: tony_lth :: Replies: 4 :: Views: 918
I've always found transformers annoyingly expensive relative to other circuit components. They represent a large base cost for cheap low power applications.
I've thought for a long time if a straight off the main line 220v to ~20V SMPS which is of low power (10-30W) could become much cheaper then the more comon rig of 220/~20V transformer and a
Power Electronics :: 12-15-2010 16:11 :: steinar96 :: Replies: 0 :: Views: 1578
I want to design a fly back AC-DC converter to supply a set top box...
In input I have Vin = 220v.
In output I need to have : 12V, 5V, 3.3V, 2.6V, 1.1V and 1V.
Please could you help me with some reference design or some ideas.
Hobby Circuits and Small Projects Problems :: 04-22-2010 04:29 :: Titou :: Replies: 0 :: Views: 2145
I need a simple circuit for AC to DC converter of 220 V AC to 15 V DC (current rating: 3A) using a transformer for charging my VRLA batteries.
Thanks in advance
Analog Circuit Design :: 02-09-2010 09:33 :: ramadass :: Replies: 1 :: Views: 7604
Of course, they using a technique with switches, and then averaging the output. We were doing this is my previous company for the AC-DC converter, which would convert 220v to 5v. Cannot exactly remember what the name was, but google it.
Other Design :: 01-15-2009 11:40 :: Sadegh.j :: Replies: 3 :: Views: 1854
Hi to all Friends,
I would like to ask some questions about converting 220v 50Hz to 110V 60Hz and I am sure that you will be giving best answers : Thanks in advance
Analog Circuit Design :: 01-10-2009 08:55 :: Medtronic :: Replies: 2 :: Views: 2092
There are many instances where hobby projects need the equivalent of a wall adapter. And the hobbyist would rather spend time on the main project than building a heavy adapter with a transformer and such! or a complex switching converter!
Is there an IC that:
1> Converts AC (110V and 220v) to DC (say 3V to 12V) in an efficient, as-light-as-a-ce
Hobby Circuits and Small Projects Problems :: 09-11-2008 07:27 :: akshay :: Replies: 6 :: Views: 2289
It is a "flyback-converter" circuit that converts AC to DC in TVs.This circuit is called "switch mode power supply" which is different from linear this circuit there are a transformer,capacitors,resistors,diodes and transistors.They convert 220v AC to 120V,40V,6V,5V...DC whatever you depends on the ratio of N2/N1 of transform
Elementary Electronic Questions :: 02-06-2006 09:37 :: atlantis83 :: Replies: 5 :: Views: 894
I need some help, I need a capasitive circuit that converts 220v AC -to- 5V DC .
Can you help me finding this? Or can you give me an idea to construct the circuit?
Thanks a lot..
Elementary Electronic Questions :: 08-22-2005 03:16 :: amun :: Replies: 2 :: Views: 1946
froggy so You want convert twice from 12V to 24V and next 24V to 220v hmm I don't think it's a good idea..
12V DC need to change 12V AC, next to 24V AC by 1:2 transformer (very large) next use bridge, caps to get DC and convert to 220v...
no this is very wrong idea....
here is an example simple circuit to convert 12V DC to 220v AC (...)
Professional Hardware and Electronics Design :: 03-07-2003 11:09 :: gulson :: Replies: 7 :: Views: 4304