15 Threads found on edaboard.com: Transformer Design Formula
I have transformer which is used for a sin-wave invert-er whose data are follows
**Primary Winding details : 250 Volt ,375 turns with 19 SWG copper .
Secondary Details : 7.5 Volt , 11 turns with two 10 SWG (two 10 SWG
parallel winded )**
Core Details : 7/2.5 inch or 43/2.5
Bobbin : Windo
Power Electronics :: 10-04-2016 14:00 :: thannara123 :: Replies: 7 :: Views: 308
I would like to design my own toroidal 48V - 25A transformer. I need to have a design formula and calculation. Can any body help me and direct me to do....
Other Design :: 04-17-2015 02:18 :: harii07 :: Replies: 0 :: Views: 1603
i think you found a mistake.
it should be: VdcNL = Em = Erms x 1.41; (Multiply instead of divedy by 1.41)
Then the formula makes sense.
You can confirm it on your given http site with "Step 5: selecting transformer" where the formula is correct.
Analog Circuit Design :: 09-06-2014 06:47 :: KlausST :: Replies: 23 :: Views: 1435
I need primary and secondary winding formulas for the following transformers,
(1) ETD 29,34,44,49.
(3)RM 10,12_small big.
Professional Hardware and Electronics Design :: 02-22-2012 06:06 :: billu8660 :: Replies: 8 :: Views: 3166
thanx before KB6NU, for the reply,
i'm using a ferrite core for the balun but i don't know about mu, can u give some valid reference for what kind of ferrite for mu, that suitable for VHF frequency and i need formula for the winding ratio of balun, can u give some valid reference for that too because i got a lot of reference b
RF, Microwave, Antennas and Optics :: 10-04-2011 23:31 :: enjunear :: Replies: 7 :: Views: 1431
I need to know the toroidal transformer design calculation.
How to find core area?
How to find turn per volts? and etc.
Please give me a direction in this.
Power Electronics :: 02-02-2011 09:00 :: harii74 :: Replies: 13 :: Views: 12327
i want to design ferrite core transformer.
Anyboddy can help me in design pls tell me wats the formula here to find area, primary winding and secondary winding.. voltage and current....
Power Electronics :: 05-19-2010 06:01 :: Zeshee :: Replies: 1 :: Views: 2000
The said expression is an empirical formula, that is fitted to measurements rather than calculated. There are various similar
formulas in use. As ferrite manufacturer application notes clarify, the parameters depend both on material and core shape.
I would generally suggest to use the manufacturer provided design tools for (...)
Analog Circuit Design :: 01-02-2010 05:18 :: FvM :: Replies: 5 :: Views: 3470
How do i caclculate the area needed for a ferrite transformer , knowing the power needed ? Is there a formula ?
the design of a ferrite transformer is a trade-off, there isn't a direct relation between core cross section area and output power. A good starting point could be the application notes that you can find at this l
Elementary Electronic Questions :: 05-31-2006 14:23 :: stefano.delfiore :: Replies: 7 :: Views: 13732
Any body can provide the total calculation on transformer design with PWM in push pull topology used in inverter circuit.
Example- input 12vdc output--220vac VA rating--500va freq. 50hz
How the transformer size reduces in inverter & UPS with E-I iron core.
When i calculate with conventional formula of (...)
Elementary Electronic Questions :: 04-14-2008 12:33 :: 1230 :: Replies: 0 :: Views: 2453
You should find out the primary inductance of the transformer. The formula relating inductance and power applies.
P = 0.5 * L * I^2 * f
P = power
L = inductance
I = current
f = switching frequency
Analog Circuit Design :: 03-04-2008 02:57 :: yeechyan :: Replies: 5 :: Views: 3435
I think Picstudent is talking about flyback transformer.
Hope someone here can explain the most reasonalbe design for flyback transformer.
The question can be more exact if we take 5V/1A output design as an example.
Added after 2 minutes:
Here is some starting point as I know:
Analog Circuit Design :: 07-27-2007 03:07 :: hardings :: Replies: 3 :: Views: 20986
You do not specify what kind of transformer you want to design. There are several type of transformers and the design procedure can be very different.
Elementary Electronic Questions :: 06-23-2007 09:23 :: cesare :: Replies: 5 :: Views: 2330
I have a question regarding this article 'A General design formula of multi-section Power Divider Based on Singly Terminated Filter design Theory' on wilkinson power divider design.
Let's take a 4-section power divider just for verifying the formulas.First, I got the impedance of optimum (...)
RF, Microwave, Antennas and Optics :: 03-01-2007 18:12 :: alard :: Replies: 4 :: Views: 3436
I'm interested in
1. How to calculate Coil Turns.
2. How to Select SWG ( Wire Guage )
3. Ferrite / CRGO ( E-I ) Core selection.
Finally how to design transformer and Inductors.
Added after 1 hours 49 minutes:
For transferomer I found a
Electromagnetic Design and Simulation :: 04-01-2006 11:54 :: nandi_ranjan :: Replies: 6 :: Views: 3283