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Sir,
I want to develop a DC-DC converter with constant current limit . So i choose lm 2575 which is suitable for my requirement load and line regulation . Now the question is how do i impliment current limit in It (15V/500mA). Please anyone help me .
For variable output voltage, i want to adjust the duty cycle of the primary side PWM controller So i need help on this topic if u can suggest any PWM controller for this application or if it just a matter of transformer design then what will be the value i should consider while designing...
R4 is use to discharge the capacitor forcefully so that u will get voltage starts from zero otherwise u will get voltage level to be shifted because capacitor will be charge it will not be discharge fully.
Thanks for solution but i want adjustable current also and i want linear O/P(ripple free) so i was thing to used series pass transistor to be used at O/P of SMPS so is that ok with this 2nd option. And one more thing i am considering both of this options are for flyback topology .
sir,
I want to design a SMPS with variable O/P voltage eg. 4-30V with variable current eg. 0-3A.
So sir I am confuse which topology is suitable for this application. please suggest me some solution. And if u have any reference then please forward me.
i am using Eagle Software and want to make footprint but dont know the procedure. My design is MCPCB design contain only top layer,& smd coponent. please help me
at output of smps i connect tl 431 for voltage regulation. now i want to add the circuit which will control the current flow. when load is more then it has to give same current but decrease the voltage
sir i am studying SMPS develop a smps with 12 v now want to convert it to 300 mA current. so i want to know what are the methods to do this operation. i tried it with BC 547 and 1 sense resister but as temp rises (resister) current decrease. help me please
I started with LED study. and i want to design product of LED's like LED strip with flex PCB or MCPCB but i am facing problem with heat management. so can u tell me from where i have to start what factors i should take care about LED's
I want to replace PWM ic used in SMPS with PIC controller SO if u have any solution for this please tell me
IF any basic requirement is necessary then tell me that also i am interested to make SMPS using controller
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