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37 Threads found on edaboard.com: Smps Variable
Hello is their a free simulator so you can see the currents and voltages in a motor drive system. (eg like smps is simulated by their a similar simulator but which allows motor currents and voltages to be seen?) I am most interested in Mains Brushed AC motors driven for variable speed by a triac
how to design dc current source up to 100 Ampere with smps..?
high efficiency = smps low efficiency = linear regulator but big heat sink needed low current = linear regulator (and simple design) So what is the current the power supply must deliver?
Hi, I have made one flyback smps with this specification. Vout=100v to 1300v (variable), Iout=40 mA , Vin=22v - 30v (DC-2 Battery) Controller IC=UC3842 , Transformer=EE50-42 , gap=1mm , Lp=14 uH , Ls=85 mH , Ip=14A, Np=9 Ns=600 , Bmax=100 mT Is it true? I see one site with below link that calculate all of one smps properties but it (...)
Hi, I have made one smps with this specification. Vout=100v to 1300v (variable), Iout=40 mA , Vin=22v - 30v (DC-2 Battery) Controller IC=UC3842 , Transformer=EE50-42 , gap=1mm , Lp=14 uH , Ls=85 mH , Ip=14A, Np=9 Ns=600 , Bmax=100 mT 1-I have a ripple on output voltage!! its about 50 volt at 1300 volt 2-I have a sin wave on drain of mos
Anybody have a schematic for an smps with variable output 0-450V (or something like that), 200mA max output. Preferably 230Vac input. I have built a nixie 200V smps with 12V input, but that only delivers about 20mA output. Any help is appreciated. Regards Nico
Hi Can I design one smps with dspic from microchip? I want to design one dc-dc with full bridge topology that have variable output voltage. is it possible? by regards.
Hi I want to make one smps with this specification: V(in)=24v DC I(in)=10A V(out)=0v to 2000v DC I(out,max)=30 mA Switching Topology=full bridge I suggest that it is possible with using L6203(full bridge driver) with AVR micro controller or Dspic . there is two key or keypad that connect to MCU and use to increase and decrease
please i am trying to make off-line smps with variable output voltage 0 to 24V It is 50 Watt max, Is it right, all i need do is make the lower divider resistor variable like a pot ?
Hi,I need to make a variable Power Supply that is very light and compact with moderate cost.I am currently using a 31V smps Output and a Linear Regulator at 2A. But Using a linear Power Supply is old and is very inefficient.I came across this variable smps circuit and was wondering if It really works.Although it is a Buck (...)
thank u Awarapunshee, i want using 555 as a pwm. u think that LM3524 or SG3525 are more than useful. please send me an smps scheme that uses these components if u have. regards
Transformer Pc Powersupply pbc view and print program [url=www.hyperelektronik.
1. Can anybody please help me find a "Programmable AC to DC Swith Mode Power Supply" ? Basically, I've been looking for a variable AC-DC smps ( capable of supplying 3,5,9,12 volts DC etc. from AC supply in UK and atleast 2 amps maximum current output capacity). 2. Is there any micro-controller controlled AC-DC smps out there, with (...)
friend u can used following website.I don't think so but u can visit this:
I need to design a smps module with this requirements: Vout : 1V - 60V Iout: 2A Voltage must be isolated - Viso =1 KV The supply voltage is not specified at this time. At the end i will use 5 smps - modules to get 5 independent adjustable voltage in a range fom 1V to 60V. generally for smps modules with (...)
My suggeston is to first step volage down to, say, 50Vac (using a step-down transformer) and then build a dc/dc smps 0-50V, 0-10A. See this example: Regards, IanP
I have lineary regulator of 25V/10A if you use for smps,I think use forward topology+UC3843 is easy to implement.


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