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## Transformer Design Formula |

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

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

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

Hi
I am **design**ing a SMPS 500W for Lead Acid Battery Charging.
I am referring Figure 16 here.
I want to build this circuit (Figure 16 above link).
Battery will be 12V 100Ah to 200Ah and so the charging currents will be 10A to 20A and hence the SMPS should be able to provide 30A.

Microcontrollers :: 11-09-2016 16:15 :: Okada :: Replies: **8** :: Views: **399**

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: **349**

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: **1663**

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: **1468**

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: **3200**

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: **1445**

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: **12608**

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: **2022**

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: **3503**

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: **13791**

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: **2460**

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: **3455**

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: **21023**

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: **2338**

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: **3478**

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: **3296**

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