simple SMPS

[stewin]

hi ap2 pls post photos of your project.

 

[AP2]

Hi, old model with IR21531D.
also other with EE-42H.

regards

 

[AP2]

find old photo.
700w quiet low emi and low hf at output.

 

[stewin]

very impressive really neat work. i am seeing an aux former is it to drive the ir2153 .?

i will build this smps but i will use irfp460 i will post pcb files . thanks ap2 . i am hoping this smps will reach 1.2 kwts.

 

[Osvaldo de Banfield]

If the SMPS isn't go to a regulated form, the output choke isn't necessary, and then can eliminate it, but adequate secondary transformer secondary.

If you still want tu use it, be careful that both magnetic fields (From positive and negative rails) must add together.

 

[eem2am]

AP2.....we spoke before.....you said you would do coupled output inductors.....but in your above pic i see two separate output inductors?

 

[AP2]

I think, that "ignorance" is luck for some company
This i use are pi hf filter,output have very low hf spurius.
it's not a integrator as regulated pwm supply need eg. as toroidal output.
this old smps play on fixed pwm.

 

[eem2am]

Thanks AP2, but if those arent separate output inductors lying horizontally at the output side of the board, then where are the output inductors?....and if its a LLC converter and doesnt have output inductors.....then what are those two inductors......they are power inductors...they are not ferrite bead type inductors.

Also, when its doing 700W, whats the ripple current in the input electrolytics?.......and what are the mains harmonic currents?

 

[AP2]

Maybe help someone, zip contain small exe for turn/voltage of trafo for this smps or similar.
unzip and change extension to .exe

 

[AP2]

1-set Main ac voltage
2- set turn on primary (it show frequency)
3- turn's of sec.
it show voltage output (include 100mA load). absolute precise.

 

[andrewlebon]

Hi AP2
greetings i have made a IR2153 smps would like to add protection can you tell values
of Q4 Q3 R8 preset if its possible do you have any IR2153 protection schematics to share
warm regards
andrew lebon

 

[andrewlebon]

IR2153 SMPS

SMALL test on 2kw dclass NO PROTECTION
warm regards
andrew lebon

 

[pushpendra]

Nice

 

[andrewlebon]

DSCN3793 - YouTube

 

[andrewlebon]

OVERCURRENT PROTECTION FOR IR2153 SMPS

Hello
greetings since i cant find any proper ocp can ac input be controlled if AC
input exceeds 10 amps using this simple hall sensor smps can be shut down
warm regards
andrew lebon

 

[andrewlebon]

OVERCURRENT PROTECTION FOR IR2153 SMPS

Circuit Breaker Features

Fast operation - Approximately 1/60th* of a second.
Adjustable trip current setting - 0.5 to 10 Amps.
No voltage or signal loss in the load circuit.
Power and Tripped indicator LED.
Low power consumption when reset.
Variable, Fixed and Asymetric trip current options are possible.

 

[AndrewT]

Andrew,
could you explain the PINs 1 .... 8 function of IC1?

 

[andrewlebon]

Fast Circuit Breaker
Hi Andrew
greetings this is the link to the article
warm regards
andre lebon

 

[palstanturhin]

What he probably mean is that it looks like pins 6 and 7 have switched places...

 

[protech1104]

Actually, you can build very nice and small SMPS using IR2153 ( without output voltage regulation ). But your schematic need little improvements ( you need to add snnubers, inpu NTC, and some kind of overcurrent limit.
You can find lots of stuff on net.
I am very happy with my IR2153 based smps.

this diagram for smps Yamaha will not work. it is a false diagram. ir2135 will die after 1 second. be wary