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## Transformer Design Formula |

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transformer formula , transformer design software , inverter transformer design , switching transformer design

18 Threads found on edaboard.com: **Transformer Design Formula**

I am going to build SPWM inverter using EGS002 module. In the data sheet of this module SPWM output filter inductor value is given 3.3mH. I want to build this inductor but I am facing following problem.
In the book ?**transformer** and Inductor **design** ? by Colonel VM. T. McLyman there are two chapters named DC inductor **design** using powder cores (...)

Power Electronics :: 02-06-2017 13:07 :: sjdurgule :: Replies: **0** :: Views: **2**

AN18 by gives good advice for gerneral flyback **transformer** **design**.
- - - Updated - - -
If you want to **design** a flyback **transformer**, then try and make each layer fill the bobbin window?as that give you better coupling?use parallel strands to achieve this if need be.
Also, make sure you don?t

Power Electronics :: 01-14-2017 12:56 :: treez :: Replies: **20** :: Views: **737**

Good advice from schmitt trigger, also you **transformer** calculations have a problem. A half bridge **transformer** only see's 1/2 of the DC input voltage so your 325 vdc in the **formula** should be is 1/2 of that. Also the constant in the **formula** should be 4 not 8.
Npri = (162 * 10^8) / 4 * 50000 * 1500 * 1.75) = 30.9 turns
By (...)

Microcontrollers :: 12-21-2016 12:33 :: FlapJack :: Replies: **8** :: Views: **475**

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: **386**

Hello all
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....
Thanks

Other Design :: 04-17-2015 02:18 :: harii07 :: Replies: **0** :: Views: **1771**

Hi,
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.
Klaus

Analog Circuit Design :: 09-06-2014 06:47 :: KlausST :: Replies: **23** :: Views: **1501**

Hi,
I need primary and secondary winding **formula**s for the following **transformer**s,
(1) ETD 29,34,44,49.
(2)EE small/big.
(3)RM 10,12_small big.
(4)EC40.
(5)PQ3535.

Professional Hardware and Electronics Design :: 02-22-2012 06:06 :: billu8660 :: Replies: **8** :: Views: **3242**

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: **1466**

Hello all
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: **13106**

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: **2045**

The said expression is an empirical **formula**, that is fitted to measurements rather than calculated. There are various similar
**formula**s 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: **3542**

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: **13912**

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: **2479**

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: **3473**

Good question!
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:
1. The

Analog Circuit Design :: 07-27-2007 03:07 :: hardings :: Replies: **3** :: Views: **21131**

You do not specify what kind of **transformer** you want to **design**. There are several type of **transformer**s and the **design** procedure can be very different.

Elementary Electronic Questions :: 06-23-2007 09:23 :: cesare :: Replies: **5** :: Views: **2361**

hello,
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 **formula**s.First, I got the impedance of optimum (...)

RF, Microwave, Antennas and Optics :: 03-01-2007 18:12 :: alard :: Replies: **4** :: Views: **3537**

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.
Thx
Ranjan Nandi
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: **3330**

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