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# 36v Smps

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8 Threads found on edaboard.com: 36v Smps

## Power module needed to slowly soft start

Hello, We are doing a 48V to 1V5 smps using a vicor PRM48 power module feeding down to a VTM48 vicor ?electronic transformer?. (the intermediate voltage is 36v). On page 21 of the PRM48 datasheet, the output voltage of the PRM48 is shown to slowly ramp up at startup?.also, during this startup, the PRM48 output current is being held very low. W

## Manipulating fixed output SMPS to variable output voltage

There is a 36v 5A smps which its PWM IC is TL494 and provides fixed 36v output voltage. is it possible to manipulate circuit in order to have variable 0 ~ 36v output voltage?

## TL431 + BJT to regulate SMPS with Vout = 36V?

Hi. If voltage supply goes high enough, current from various sources will be higher than current that flows through R2, and in that case, the regulator might get more then 36v between kathode and anode. So it's not protected from overvoltage - if the voltage goes high enough. Also remember that current cannot go in negative direction into a transi

## Using TLVH431 in offline SMPS with Vout = 36V

Hello, I wish to use the TLVH431 to get opto-isolated feedback in an offline smps. The problem is that this smps has an output voltage of 36v, and the maximum allowable cathode voltage of TLVH431 is 20V. Do you think that it is possible to use the TLVH431 here? ...and is the following the best way to do it... i.e. using a (...)

## Using TLVH431 for SMPS with Vout=36V?

Hello, I wish to use the TLVH431 to get opto-isolated feedback in an smps. The problem is that this smps has an output voltage of 36v, and the maximum allowable cathode voltage of TLVH431 is 20V. Do you think that it is possible to use the TLVH431 here? Is it right that all I have to do is simply put a 20V zener in series (...)

## smps controller times out

hello, i do offline 24W flyback smps with vout = 36v and Cout = 30mF. output capacitance is (necessarily) so high that smps controller ic does not get into regulation very quickly (i.e. b4 ~130ms) and so it thinks there is a short on the output , and shuts down b4 even starting....you know of smps ic's which can get (...)

## offline SMPS charging up 30mF capacitor

Hello I am designing an isolated offline flyback for 28W output power. The 36v output has 30mF capacitor on it. -this is needed to provide some power to the output in the event of a mains failure. The overall spec is. Flyback Fsw = 100KHz Pout = 28W Vin = 85-265VAC Vout = 36v Feedback by opto I wish to use the NCP1271 PWM Cont

## offline SMPS with low "standby" power consumption

Hello, Please can you tell me, I wish to do an isolated , offline smps (85 to 265VAC) , Power output = 34W. It has one isolated output of 36v (+/-5%), 32W and one isolated output of 5V (+/- 4%) , 2W. When the smps is in “standby” (i.e., its minimum load condition) the 36v rail is completely (...)

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