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Developing a Regulated Dual Rail Power Supply For FirstWatt Amps
Developing a Regulated Dual Rail Power Supply For FirstWatt Amps
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Old 14th May 2016, 01:47 AM   #11
Zen Mod is offline Zen Mod  Serbia
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Developing a Regulated Dual Rail Power Supply For FirstWatt Amps
device which is responsible for Jules

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Old 14th May 2016, 02:45 AM   #12
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I got output impedance down to 23mOhms by a very simple tweak.
I think I am more than satisfied with that.
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Old 14th May 2016, 02:46 AM   #13
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I'll post circuit later.
The battery in the laptop is about to go dead
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Old 14th May 2016, 03:12 AM   #14
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The circuit which you posted only for one channel ?. OR need to add more out put devices for stereo set up ?.
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Old 14th May 2016, 03:37 AM   #15
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All will be revealed.

You could run two channels off it, but I plan to do dual mono or semi dual mono.
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Old 14th May 2016, 07:23 AM   #16
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Given that most people are usually satisfied by a CRC supply I'm starting to think that the highest priority here is ripple reduction, followed by decent output impedance, with regulation being at the bottom of the priority list. So I'll also do a straight Capacitance multiplier supply as well, which has the advantage of an even smaller voltage drop.

Just thinking out loud.

I'll post up all the potential circuits
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Old 14th May 2016, 08:48 AM   #17
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What about a cap multiplier with a mosfet but adding a battery in the 3 to 6v range in series with the gate . This way you could have the voltage on the gate about 3 volts higher than the drain voltage so you wouldn't lose but a volt or so in the mosfet.
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Old 14th May 2016, 09:38 AM   #18
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I'll try it.
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Old 14th May 2016, 10:44 AM   #19
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Developing a Regulated Dual Rail Power Supply For FirstWatt Amps
you need bloody reservoir cap on output

build it , then listen with and without

then choose
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Old 14th May 2016, 11:17 AM   #20
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Quote:
Originally Posted by Zen Mod View Post
you need bloody reservoir cap on output

build it , then listen with and without

then choose
I have held off from doing that because you get a rising impedance response with decreasing frequency ie higher impedance in bass region as opposed to flat impedance.

If I add a reservoir cap it's gonna be 200,000uF to reduce this effect. Do you think there will be any problem with such a large capacitor on output?
I'm quite happy adding more bipolar transinstors if require.

Burning Capacitance Multiplier 1

Hahahaha
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