SMPS RESOURCES

[tAhm1D]

Hi,
Earlier there were two notable drawbacks in Power Electronics:
1) The nonavailability of >100V schottky diodes, which creates lot of headache in SMPS in case of switching losses due to turn-off time of ultrafast/fast rectifiers.
2) The nonavailability of IGBTs that can operate at high frequencies. We generally know of IGBTs being switched at frequencies in the range of 20-40kHz max.

However ST Microelectronics has recently released two great products:
1) 600V SiC (Silicon Carbide) schottky diodes with current ratings of 4A, 6A, 8A, 10A, 12A in D2PAK and TO220 packages.
2) 600V 35A and 600V 45A single IGBTs in TO247 packages that can operate effectively at frequencies upto 100kHz.

These two products are revolutionary in the field of power electronics.

For more information go to www.st.com and search up the articles on 600V SiC rectifiers and 600V HF IGBTs.

Hope these products greatly benefit those working in the power electronics sector (especially SMPS).

[download_crux]

hi
 
Please give the full part numbers ( both diode and IGBT)

Thank you

[tAhm1D]

Hi,
Check out these articles:
http://www.st.com/stonline/products/families/diodes/schottky/related_info/600vsic.htm?wt.mc_id=enews_dec09_sicrange
http://www.st.com/stonline/products/families/transistors/igbts/related_info/stgwx35hf60wdx_stgwx45hf60wdx.htm?wt.mc_id=enews_dec09_hf-igbt

IGBT:
http://www.st.com/stonline/stappl/st/com/selector/index.html#querycriteria=RNP139=68.0$$XJE010=STGW*5HF60WD*

SiC Schottky Diodes:
http://www.st.com/stonline/products/families/diodes/schottky/related_info/600vsic.htm?wt.mc_id=enews_dec09_sicrange


Hope this helps.

[carbontracks]

Personally I'm waiting for GaN fets to replace both normal MOSFETs and small IGBTs in power converters.  About a fifth of the gate-source and gate-drain charge of normal mosfets, so anything that wants to operate at high frequency is going to benefit a lot from them.  They're just now becoming available; the most powerful variety is rated to 12 amps and 200 volts.  According to the manufacturer, that's just a starting point and they're scalable up to much higher power levels.

http://epc-co.com/epc/documents/datasheets/EPC1010_datasheet_final.pdf

that's the most powerful part I'm aware of, and it's only 1.4x3.6mm.  Once these things get bigger, they'll probably take over completely (assuming prices go down somewhat).

[Rony]

HI
everyone. Can somebody reupload those all pdfs cz Rapidshare has removed those all. Plz plz plz !!!.
i didnt get any of those one

[solutions]

Hi,
Earlier there were two notable drawbacks in Power Electronics:
1) The nonavailability of >100V schottky diodes, which creates lot of headache in SMPS in case of switching losses due to turn-off time of ultrafast/fast rectifiers.
2) The nonavailability of IGBTs that can operate at high frequencies. We generally know of IGBTs being switched at frequencies in the range of 20-40kHz max.

However ST Microelectronics has recently released two great products:
1) 600V SiC (Silicon Carbide) schottky diodes with current ratings of 4A, 6A, 8A, 10A, 12A in D2PAK and TO220 packages.
2) 600V 35A and 600V 45A single IGBTs in TO247 packages that can operate effectively at frequencies upto 100kHz.

These two products are revolutionary in the field of power electronics.

For more information go to www.st.com and search up the articles on 600V SiC rectifiers and 600V HF IGBTs.

Hope these products greatly benefit those working in the power electronics sector (especially SMPS).

Not a chance - have you priced these diodes?

[pickit2]

HI
everyone. Can somebody reupload those all pdfs cz Rapidshare has removed those all. Plz plz plz !!!.
i didnt get any of those one

and you post no links for missing RS posts. you want us to check back on all RS links for you?
wait I seen this

Dear Admin, i was trying to register Sonsivri science last 2 years but nobody sends me invitation. here is some referable projects of mine. cnc drill (18f4552 usb), MPPT solar charger(16f73), Sinewave full bridge inverter(16f73, 18f4550, 18f452), PFI(18f4550), SixPulse Charger (18f452), Language( MS Visual studio 6.0,2008, c++, ProtonBasic, Mikroc) . My most of inverter and Other Power Applications are written in Proton Basic. So i can share it with all forum Member. Please check www.ekushebangla.com

there is lot can't explane in little place. So Please send me Invitation

and I see all your posts from being invited are "I want" and expect bbarney our mind reading mod to be on hand.

[SteveyG]

Hi,
For Offline smps power supply, Top and Tny Switches of Power Integration are very useful and cost effective. Here, I am posting one Thesis Paper by a student of Queensland University regarding small scale offline power supply using TNY Switch. This is a very useful circuit and I learned many things from this paper. Hope, it will be useful for those who want to indulge in offline small scale smps power supply.

If anyone decides to use the Power Integration devices, the PI Expert Design software is a nice little tool for designing the power supply to your specs: http://www.powerint.com/en/design-support/pi-expert-design-software

[solutions]

Raymond A. Mack, "Demystifying Switching Power Supplies"
ISBN: 0750674458

This book is a crash course in the fundamental theory, concepts, and terminology of switching power supplies. It is designed to quickly prepare engineers to make key decisions about power supplies for their projects.
Intended for readers who need to quickly understand the key points of switching power supplies, this book covers the 20% of the topic that engineers use, 80% of the time.

Unlike existing switching power supply books that deal strictly with design issues, this book also recognizes the growing importance of "off-the-shelf" commercial switching power supplies, giving readers the background necessary to select the right commercial supply.

This book covers the core essentials of power supply theory and design while keeping mathematics to the absolute minimum necessary. Special attention is given to the selection of appropriate components, such as inductors and transformers, to ensure safe and reliable operation. Engineers, whose main design responsibilities are in other areas, will better understand the strengths and weaknesses of switching power supplies and whether such supplies are appropriate for their projects. They will be able to give more meaningful design requirements and specifications to those who design switching power supplies.

* Discusses both AC line supplies and DC-DC inverters.
* Covers the main switching power supply designs, including flyback, forward conversion, bridge, buck, boost, and boost/buck topologies.
* Design examples include a 220 volt offline switching power supply and a 110 volt uninterruptible supply.

tahm1D's link was dead, so.....  https://rapidshare.com/files/474322959/0750674458.pdf

[Gallymimu]

Another great resource/device for low power SMPS designs are the National Semiconductor (now TI) Simple Switcher series of SMPS controllers.  It hardly counts as SMPS design when you use these but they are pretty cheap and easy to use.  They even are going into reasonably high frequencies these days (1MHz and up).

I use them pretty regularly for 100mA to a few amps at 2-20VDC applications.  You can often put together a pretty nice buck regulator with only 3-5 components in addition to the controller (which has an integrated power switch).  Two of my favorites are the LMR14206 and the LM2596.

[Sideshow Bob]

Raymond A. Mack, "Demystifying Switching Power Supplies"
ISBN: 0750674458

This book is a crash course in the fundamental theory, concepts, and terminology of switching power supplies. It is designed to quickly prepare engineers to make key decisions about power supplies for their projects.

Your links are dead now. So I post this. Not mine but checked out to be OK this day
http://bitshare.com/files/xmmrahx3/PocFqj---e-0750674458.pdf

[maurer]

Here are some pdf of the old "Switching power magazine" edited by Ridley https://www.google.com/#q=site:www.switchingpowermagazine.com+filetype:pdf . Someone know how many number the magazine had ? maybe someone was subscribed and can upload all the articles ? tnx

[wellnerson1]

Here you see some nice practical Reverse Engineering tutorials on SMPS in the following links.
Really worthy.

How Does a Switching Power Supply Work (schematic, explanation, example, modifications)
https://www.youtube.com/watch?v=cX4q0e124C4
https://www.youtube.com/watch?v=mNquVjDnpxU
https://www.youtube.com/watch?v=3ySlJ99OSN4

12V 10A switching power supply (with schematic and explanation)
https://www.youtube.com/watch?v=B19rB_FR5Mk