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Keantoken's CFP cap multiplier
Keantoken's CFP cap multiplier
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Old 3rd April 2015, 06:46 AM   #811
TNT is offline TNT  Sweden
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DirtyPCBs.com order #200xxxx status: Shipped

Cant take 8 weeks can it?

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Old 3rd April 2015, 08:07 AM   #812
sikahr is offline sikahr  Croatia
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DirtyPCBs.com order #200xxxx status: Shipped

Cant take 8 weeks can it?

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Earlier PCBs from Dirty, 3-4 weeks
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Old 4th April 2015, 05:46 PM   #813
Santa Claws is offline Santa Claws  United Kingdom
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Default Kuartlotron on 5x5?

Kuartlotron on 5x5?

Oh Yes that would be soooooo good! I'll take 20 or so.

Last edited by Santa Claws; 4th April 2015 at 05:46 PM. Reason: unbold reply
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Old 4th April 2015, 06:17 PM   #814
sikahr is offline sikahr  Croatia
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Kuartlotron on 5x5?

Oh Yes that would be soooooo good! I'll take 20 or so.


The Kuartlotron - keantoken's simple error-correction superbuffer
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Old 11th April 2015, 09:49 AM   #815
sikahr is offline sikahr  Croatia
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Hi,

unregulated supply PCB, pi filter, needed before K mulitplier or superregulator, what do you think about layout (some parts are missing, snubers, bleeders ...)?

I tried to keep loops small.

Board is universal one positive or negative rail. Caps are 16mm diameter.
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Old 11th April 2015, 10:49 AM   #816
AndrewT is offline AndrewT  Scotland
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Your layout is not good.

The input to the first smoothing cap shares a link with the output from that first smoothing cap.
The OUTPUT must be on a separate trace from the INPUT to every pin on EVERY capacitor.

Follow the -ve trace, here you have separated the Input from the Output for every -ve pin.
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Old 11th April 2015, 11:24 AM   #817
sikahr is offline sikahr  Croatia
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Quote:
Originally Posted by AndrewT View Post
Your layout is not good.

The input to the first smoothing cap shares a link with the output from that first smoothing cap.
The OUTPUT must be on a separate trace from the INPUT to every pin on EVERY capacitor.

Follow the -ve trace, here you have separated the Input from the Output for every -ve pin.
Like this? Top&bottom layers are the same.

Do you have suggestions for some additional components?
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Old 11th April 2015, 11:41 AM   #818
AndrewT is offline AndrewT  Scotland
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YES !!!!

now close up the loop areas.

Or use the two layer board to place one trace above/below the complementary trace.

Make the In/Out pads big enough to suit using " spades that are soldered strongly on both sides of the PCB. Needs 4 extra holes compared to the terminals but preserve the pin pitch so that either spades, or terminals, can be used.

Is there room to add a snubber to the Input?
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Last edited by AndrewT; 11th April 2015 at 11:44 AM.
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Old 11th April 2015, 11:52 AM   #819
sikahr is offline sikahr  Croatia
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Originally Posted by AndrewT View Post
YES !!!!

1.
now close up the loop areas.

Or use the two layer board to place one trace above/below the complementary trace.

2.
Make the In/Out pads big enough to suit using " spades that are soldered strongly on both sides of the PCB. Needs 4 extra holes compared to the terminals but preserve the pin pitch so that either spades, or terminals, can be used.

3.
Is there room to add a snubber to the Input?

1. Can you please better explain

2. " spades, have some pictures?

3. I.ll try to find place, resistor and cap serial at AC? how large footprint for cap?
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Old 11th April 2015, 12:03 PM   #820
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by sikahr View Post
1. Can you please better explain
push the +ve trace close to the -ve trace so that the gap between the two is very small = low loop area.
Quote:

2. " spades, have some pictures?
"faston" are another name for spade (male) and push-on terminal (female)
Quote:

3. I.ll try to find place, resistor and cap serial at AC? how large footprint for cap?
quite small, try 0.1" and 0.2" pin pitch and make the 0.1" just close enough to allow a 1206 smd cap to be used between the pads.
Due to the capacitor blocking the DC and most of the 50/60Hz, the power dissipation in the resistor is very small. A standard W would do. The European 600mW are about the same size as W and fit a 0.4" pin pitch. 0.45" is a nicer fit and saves bending the leads as close to the resistor body. Alternatively the resistor could be stood on end with a 0.1" pin pitch, but many Builders do not like this.
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Last edited by AndrewT; 11th April 2015 at 12:09 PM.
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