Placid HD, min voltage drop?

RollE2k · 07:20 PM

I have tried to find, but without result. What are the lowest voltage drop over the placid HD? i'm asking because i have a 6-0v transformer that i hoped to use, but i guess the voltage is to low to get 5v - 5.25v output?

firechief · 3rd April 2012, 07:24 PM

We will need more information, you might be in luck. What is the brand and part number of the transformer? I asume that you mean 0-6VAC secondary on the transformer. If all else fails measure the secondary transformer AC voltage, and post a picture. How much current will the Placid HD be drawing?

RollE2k · 3rd April 2012, 07:54 PM

The transformer is a Myrra 24411 - with two secondaries of 6-0V, 5 VA each. And the Placid HD will probably draw approx 500mA (Buffalo III dac). Maybe i should even try looking for any rectifier diodes that drops voltage as little as possible if it helps.

RollE2k · 3rd April 2012, 08:31 PM

I see that there are schottky-rectifiers with 0,35V forward voltage, which would mean only 0.7v drop over the rectifier, which would also help a little bit!

RollE2k · 11th April 2012, 08:07 PM

Nobody knows exactly how high input voltage i need to have 5v/500mA output?

Russ White · 12th April 2012, 12:16 PM

Quote:

Originally Posted by RollE2k

I have tried to find, but without result. What are the lowest voltage drop over the placid HD? i'm asking because i have a 6-0v transformer that i hoped to use, but i guess the voltage is to low to get 5v - 5.25v output?

It depends on the current you are needing. Yes 6V is likely on the small side.

I would recommend at least 4V drop. So 9-10V rectified should be ok.

3rd April 2012, 06:21 PM	#1
RollE2k diyAudio Member Join Date: Nov 2007	Placid HD, min voltage drop? I have tried to find, but without result. What are the lowest voltage drop over the placid HD? i'm asking because i have a 6-0v transformer that i hoped to use, but i guess the voltage is to low to get 5v - 5.25v output? Last edited by RollE2k; 3rd April 2012 at 07:20 PM.

3rd April 2012, 07:24 PM	#2
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	We will need more information, you might be in luck. What is the brand and part number of the transformer? I asume that you mean 0-6VAC secondary on the transformer. If all else fails measure the secondary transformer AC voltage, and post a picture. How much current will the Placid HD be drawing? __________________ "You can keep your insurance baby nothing is guaranteed" -Tom Petty

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3rd April 2012, 07:54 PM	#3
RollE2k diyAudio Member Join Date: Nov 2007	The transformer is a Myrra 24411 - with two secondaries of 6-0V, 5 VA each. And the Placid HD will probably draw approx 500mA (Buffalo III dac). Maybe i should even try looking for any rectifier diodes that drops voltage as little as possible if it helps.

3rd April 2012, 08:31 PM	#4
RollE2k diyAudio Member Join Date: Nov 2007	I see that there are schottky-rectifiers with 0,35V forward voltage, which would mean only 0.7v drop over the rectifier, which would also help a little bit!

11th April 2012, 08:07 PM	#5
RollE2k diyAudio Member Join Date: Nov 2007	Nobody knows exactly how high input voltage i need to have 5v/500mA output?