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DC on the mains |
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Graham Slee
Admin Group Retired Joined: 11 Jan 2008 Location: South Yorkshire Status: Offline Points: 16298 |
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Here's my scrap box version for those wishing to save some money.
Estimated cost: £10 ex case Be bloody careful! Edited by Graham Slee - 29 Jan 2022 at 9:53pm |
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That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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CageyH
Senior Member Joined: 30 Apr 2012 Location: Toulouse, Franc Status: Offline Points: 1678 |
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Nope.So I removed it. It is available on his website for anybody that is interested.
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Kevin
European loan coordinator, based near Toulouse, France. |
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Graham Slee
Admin Group Retired Joined: 11 Jan 2008 Location: South Yorkshire Status: Offline Points: 16298 |
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Why not put a hyperlink to the image instead? Something in the order of "click here to see the circuit" using the hyperlink tool (^ up there in the reply composer). That would put it in another browser tab and be on his website, and it would still be available for all to see. I know you're well meaning and you put the link in image tags which isn't really uploading but he wouldn't be able to see the HTML. I wouldn't want anybody to think I was pushing my latter circuit contribution - it's just another idea that does the same number of DC stages. |
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That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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CageyH
Senior Member Joined: 30 Apr 2012 Location: Toulouse, Franc Status: Offline Points: 1678 |
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I have added a link to the owners product info.
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Kevin
European loan coordinator, based near Toulouse, France. |
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CageyH
Senior Member Joined: 30 Apr 2012 Location: Toulouse, Franc Status: Offline Points: 1678 |
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With 50A bridge rectifiers, I assume that some kind of thermal dissipation should be provisioned? Obviously, it won’t be pulling anywhere near 50A, but something like that could happily feed my entire system?
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Kevin
European loan coordinator, based near Toulouse, France. |
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CageyH
Senior Member Joined: 30 Apr 2012 Location: Toulouse, Franc Status: Offline Points: 1678 |
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My version that I currently have fitted has a single 10A 600V bridge rectifier, and two 4700uF capacitors, so a little cheaper, but also possibly a little less effective if there is a large “DC element” on the mains.
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Kevin
European loan coordinator, based near Toulouse, France. |
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Graham Slee
Admin Group Retired Joined: 11 Jan 2008 Location: South Yorkshire Status: Offline Points: 16298 |
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(Replying to the post before last) Not really. There are a few lying about on my R&D bench, and they're overrated for the job, as you say, but they're highly popular for some reason at the moment, so are very inexpensive. I've been using them in my amplifier experiment's power supplies because they're pretty "bomb proof". Apart from switch-on inrush, the primary current to your amplifier's transformers will be less than two amps, with amplifier at full output, so the bridge's won't get hot at all. Mine have a metal base for heatsinking, which is really well insulated from the diode junctions, but even so, I'd insulate them when used on the mains. And the voltage doesn't really matter, as the reverse current flow sees the opposing polarity diodes limit the reverse voltage, and vice versa. The capacitors can be any voltage above say 6V, but 16V is common, and there's nothing to stop the constructor using a higher voltage rating. I think the combined series-parallel rating of what your building at 102,000 uF is a bit OTT. I too have used a couple of 4700uF, but maybe 10,000uF (giving 5000uF because of the series connection) might rid all worry about phase lag. Edited by Graham Slee - 30 Jan 2022 at 1:19pm |
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That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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