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369 Threads found on edaboard.com: Ferrite Core
Actually I am trying to design a Induction Heat machine. I need information about the calculation of section of ferrite core to manage the necesary power. The machine will work to 50khz or up. Thanks brothers.
Ferrycube (fore philips)have many good high frequecy ferrite products.
some matterial like ferrite that settele on magnetizing enviroment will degraded over time but with low degaraded only making it,s characteristics diffrent as it for firs time (it's olso depent on material of te ferryte)
Hello brothers! At moment I finish a small project with one +24VDC DC motor. Because of the noise level, my microcontroller was reset many times, then I add a single PI filter for supress noise interferences. This filter function very nice, but now I start my serial production and need define the core characteristics and the windings. Aft
Hi I am working on the power line communication project. I have implemented FSK modulation and demodulation using XR2206 and XR2211 respectively. I am getting 30khz and 15KHz, 5Vpp output for logic 1 and logic 0 respectively. I have also implemented the coupling circuit using ferrite core from the power supply and couple it using .47uF -
Hy, I wish to know how shape of ferrite core in coil influence on change of inductance. Suppose we have two ferrite cores (rod and tube) but except that all other technical characteristics are the same (permeability, lenght, diameter, etc). I wish to know what are the difference in case we use this two (...)
Hi, Yes, you may possibly find an old AM pocket radio receiver in the house you or the neighbours do not need any more. From such radio set you can take out either the AM ferrite road or the 455kHz IF coils and use their ferrite as the core for your RF choke. These cores usually work up to 1-2MHz frequency and will give (...)
I need to choose a ferrite core (balun core) for a 20-90 MHz dipole antenna , 5W , 50Ω. Wich ?r do i need ? What other parameters are necessary? Thx alot
i am developing the dc current meter , in that a hall sensor UNG 3505 is used but , sensor should place in the air gap of ferrite core . i found it in the old smps but of ring shape , for a gap i have to cut it ! and ferrite >> is too hard to cut . any special method for cutting .? or can i use a similar core but (...)
I want to make transformer using ETD 59 ferrite core (frequency 20KHz). The equation is attached for calculations. I have question that how to determine the (Ac=core area in cm2) for ETD 59 ferrite cores.
Please help me that how do I determine proper wire size in SMPS for building a ferrite core transformer.
I made a parallel-plate 90° - 3dB Hybrid coupler in PCB. May be You can make the same but with these lines in turns into a ferrite core and the lines separated with a flexible dielectric.
the powdered iron toroidal core will work fine, it won't saturate, but will have higher loss than a properly gapped ferrite core.
Do ferrite core increse the power transmission efficiency?I want to use ferrite core in passive RFID tag and antenna,It seems that using ferrite core or ferrite rod can increse energy transmission efficency between RFID antenna and tag in a near fild? Anyone can give (...)
hi, i tried a ckt to make light weight ferrite core base hf 50 hz invertor.first i converted 12 v dc to 350 v dc with a center tapped ferrite smps transformer with push pull tolology and hf switching.after that i converted this 350 v dc to a square wave 50 hz op with H bridge.But even after using currentt limit circuit to the outputs the (...)
It is to raise the inductance so that fewer turns can be used. Since ferrite has high resistance, it does not add to the parasitic capacitance.
Dear Friends, How to select ferrite core for switching power supply transformer design? Regards Lib
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....
designing a switch mode power supply which can be described by the block diagram above. The pulse generator circuit consists of a 555. Output of 555 is directly connected to the gate of the MOSFET (6N60). A 100Ω resistor is connected to the secondary windings of the ferri
You won't hardly find a ferrite material with much better performance at 200 MHz. The parameter indicates, that you can't design ferrite inductors with considerable Q in the > 100 MHz range, neither a resonant transformer. But a wideband ferrite transformer can still work at several 100 Mhz, or even > 1 GHz. That's because the main (...)
I have a formula for radiation resistance of a small loop antenna. How will the radiation resistance of a resonant loop antenna change if I place a ferrite core in it? (I am talking about an actual loop = 1 turn, so the core would be a ferrite slice - there is also the question about the influence if the thickness of this (...)
Hi, I am designing an offline, isolated flyback at 22W with Vout = 36V, Vin=85-265VAC. I will be using a EFD25/13/9 ferrite core transformer from Epcos(the AL = 315 one, N87) Ferrit core
frnds i wana know whats the difference in application of a five pin and four pin input ferrite core transformer? (in four pin two are for primary and two for feedback but what about the fifth pin ?). i am using a four pin ferrite core for an inverter but it out put is less. how it differ from each other in design and (...)
Today i found the web page i was looking i found that the difference in winding turns counting is for toroids and chokes.The ferrite core transformer winding turns are counted same way as in iron core transformers.I am much thankful for you help. For reference the link to page is
If you live in low temperatures area the ferrite core (known as inverters) are best (in my opinion and experience) and if you live in high temperature area I may suggest to go for Iron core Transformer. Quality means much in every product type.
It's just a vendor specific type marking, not containing any readable specification. Mechanical core dimensions are probably the only information you can get without unmounting the part. I don't exactly know what you mean with a "two-pole ferrite core". Is it an EE or EI core shape? Refer to major (...)
I have a few years experience using ferrite cores. In my industry we use them to suppress energy or charges that may travel across a conducting cable and get into other portions of the systems that are sensitive to such charge. So they pretty much behave as a attenuator or a frequency dependent resin the simplest terms. Look for any company websit
You advise how to calculate how much magnetic flux density in the ferrite core size T37 causes the current through the conductor at its center the size of 1A? What ferrite material be selected for the magnetic flux induced by current 1mA-10A ?
I need to know some SMPS tx ferrite core model from Farnell UK/ Rs Online UK. I wanna use them for building 200W-700W DC power supply and 500W-4000W sine wave inverter. pls suggest me appropriate part no...
For oscillator design in electronic ballast I bought a 10/6/4 toroid ferrite core i want the Hsaturation value to find the number of turns i should wind. i am using a hinoday ferrite of msb-5s material grade. some one please help me to find the Hs. The bsat is 480mT. ui = 3000 I tried with u=b/H and got some 1.27 but i dont know (...)
hi everyone how are you people.. i want to ask , i have this ferrite core. with material PC40 and size EE55 how can i know about its Bmax to use in calculating its turns as shown in Tahmid blog. and also its area A.. core is this type as shown in the blow link. ht
Hi I recently received a ferrite core with following specifications : ETD44 , 3c90 (material) Now I want to know how much power can I transfer using this core. On doing a bit of googling I found this which provides a beautiful table to list the power at 100khz. But what if I want to use it at
Usually the allowed flux density in iron-powder cores is higher with respect than that in ferrite-cores. However the selection also depends from the working frequency. You migth be interested in the following articles:
Hi, How can I simulate whith SPICE a ferrite core like the most popular in RF : FT-50-43 ??? Have you got some reference about this particulars transformers ?? Regards?
Hi all why we insert ferrite rod inside wire wound coils especially the ferrite rod does not (nearly)affect the value of the inductance ?
What is the right way to define the main parameters (Bm, Al, Mi..) of a smsp ferrite so that we can choose its replacement?
Hi all, could you please explain what are the main differences between ferrite and inductor? I assume that their behabiour over frequency is different. When and why must we use a ferrite instead of a coil? Thanks for your answers.
Hi! I have designed a very low cost SMPS having power output of 16V/1.5A for a universal supply input of 90-265VAC. I use IC TL3842 in single transistor flyback topology. I need help for the transformer design with manufacturing guidelines. Any reference ebooks/articles for designing lowcost and low power SMPS with Universal Supply input
you can check how many turns you need for x frequency so that you do not saturate the ferrite. Check the link below: So when you now this, it is easy to calculate. If you need more help, just post your question.
Please, I need suppliers/manufacturers and/or catalog for ferite core transformer. I shall be in regular need of this component for fluorescent inverter for small production unit/business. Thanks a lot.
Please, I need suppliers/manufacturers and/or catalog for ferite core transformer. I shall be in regular need of this component for fluorescent inverter for small production unit/business. Thanks a lot.
Hi, I have some pieces of ETD 59 ferrite cores and I want to use them to build an inverter. Following are the details" Input voltage : 13.2 to 10V DC (Center tapped) Input current : 40 Amperes Output voltage (1) : 240v Ac Output voltage (2) : 15v Ac Output current : 3 Amperes operating frequency can be 20 to
Please help me that how do I determine proper wire size in SMPS for building a ferrite core transformer.:?:
Check web sites of ferrite core manufacturers. There are a lot of information about available cores and application notes as well. You will find answers to your questions quickly. Some of the vendors are Fair-Rite, Ceramic Magnetic, Ferroxcube, Steward. Check Google for more names. RF-OM
Hello all, I am trying to calculate the ferrite core losses resulting from the an alternating current biased by a certain DC value. the core is ETD29 and the material is Epcos N27. What is the value of flux density B that can be used in the Manufacturer Pv curves? Bmav , Bav or ∆B ? the attached picture illustrates the change of B (...)
Hello all, I am trying to calculate the ferrite core losses resulting from the an alternating current biased by a certain DC value. the core is ETD29 and the material is Epcos N27. What is the value of flux density B that can be used in the Manufacturer Pv curves? Bmav , Bav or ∆B ? the attached picture illustrates the change of B (...)
Hello, I'm trying to simulate a ferrite binocular core in the VHf band (20 - 500 MHz) by AWR, I saw in the polyfet AN TB160 ( ) that the ferrite core is modelled by a coaxial wire with an inductor in parallel, could anyone give me the meaning ??
My 400W PC power supply uses an ERL35.And I guess, it's not running faster than 30, maximum 50 kHz. So at 100 kHz you can achieve even higher power. You can also refer to the Epcos ferrite design tool, that gives about 400 W for EER35 with a 25 kHz push-pull topology.
guys tell me what if i dont use the RFC(ferrite core) in this circuit,what will be the
hi how to measurement the Kfe(core loss coefficient) and B(core loss exponent) in equation :Pfe=Kfe*(Bmax^B)*Ac*lm?