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#1
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PS caps : electrolytics + polypropylene, interactions?
Hello,
this's the possible configuration in my DAC's PS : 10000uF 50V ELNA Cerafine Electrolytic IN PARALLEL WITH 4700uF 50V ELNA Cerafine Electrolytic IN PARALLEL WITH 0.1uF 400V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap IN PARALLEL WITH 2.2uF 100V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap I thought to place them together, all in parallel just after the diodes. - Are unwanted interactions between the two electrlytics and the two Polyprops possible? - Is the HOVLAND MusiCap right for such PS application? - Is coupling the 0.1uF MusiCap with the 2.2uF one anyway useful? Thank you very much, Fabio |
#2
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PS caps : electrolytics + polypropylene, interactions?
Fabio De Robertis wrote:
Hello, this's the possible configuration in my DAC's PS : 10000uF 50V ELNA Cerafine Electrolytic IN PARALLEL WITH 4700uF 50V ELNA Cerafine Electrolytic For what virtue? IN PARALLEL WITH 0.1uF 400V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap IN PARALLEL WITH 2.2uF 100V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap Something hf (rf) bypassing is relevant yes, to my knowledge 1 uF makes sense and it ought to be uncritical. My knowledge is incomplete. I thought to place them together, all in parallel just after the diodes. - Are unwanted interactions between the two electrlytics and the two Polyprops possible? Too complicated, one big and one small, say 1 uF, and perhaps a tiny ceramic. - Is the HOVLAND MusiCap right for such PS application? - Is coupling the 0.1uF MusiCap with the 2.2uF one anyway useful? That's only "one digit" smaller, 3 or 4 digits smaller makes more sense, capacitors do have a bandwidth, but it is not *that* narrow. Thank you very much, Fabio -- ************************************************** *********** * My site is at: http://www.muyiovatki.dk * ************************************************** *********** |
#3
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PS caps : electrolytics + polypropylene, interactions?
Fabio De Robertis wrote:
Hello, this's the possible configuration in my DAC's PS : 10000uF 50V ELNA Cerafine Electrolytic IN PARALLEL WITH 4700uF 50V ELNA Cerafine Electrolytic For what virtue? IN PARALLEL WITH 0.1uF 400V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap IN PARALLEL WITH 2.2uF 100V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap Something hf (rf) bypassing is relevant yes, to my knowledge 1 uF makes sense and it ought to be uncritical. My knowledge is incomplete. I thought to place them together, all in parallel just after the diodes. - Are unwanted interactions between the two electrlytics and the two Polyprops possible? Too complicated, one big and one small, say 1 uF, and perhaps a tiny ceramic. - Is the HOVLAND MusiCap right for such PS application? - Is coupling the 0.1uF MusiCap with the 2.2uF one anyway useful? That's only "one digit" smaller, 3 or 4 digits smaller makes more sense, capacitors do have a bandwidth, but it is not *that* narrow. Thank you very much, Fabio -- ************************************************** *********** * My site is at: http://www.muyiovatki.dk * ************************************************** *********** |
#4
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PS caps : electrolytics + polypropylene, interactions?
Fabio De Robertis wrote:
Hello, this's the possible configuration in my DAC's PS : 10000uF 50V ELNA Cerafine Electrolytic IN PARALLEL WITH 4700uF 50V ELNA Cerafine Electrolytic For what virtue? IN PARALLEL WITH 0.1uF 400V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap IN PARALLEL WITH 2.2uF 100V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap Something hf (rf) bypassing is relevant yes, to my knowledge 1 uF makes sense and it ought to be uncritical. My knowledge is incomplete. I thought to place them together, all in parallel just after the diodes. - Are unwanted interactions between the two electrlytics and the two Polyprops possible? Too complicated, one big and one small, say 1 uF, and perhaps a tiny ceramic. - Is the HOVLAND MusiCap right for such PS application? - Is coupling the 0.1uF MusiCap with the 2.2uF one anyway useful? That's only "one digit" smaller, 3 or 4 digits smaller makes more sense, capacitors do have a bandwidth, but it is not *that* narrow. Thank you very much, Fabio -- ************************************************** *********** * My site is at: http://www.muyiovatki.dk * ************************************************** *********** |
#5
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PS caps : electrolytics + polypropylene, interactions?
Hi Peter,
this's the possible configuration in my DAC's PS : 10000uF 50V ELNA Cerafine Electrolytic IN PARALLEL WITH 4700uF 50V ELNA Cerafine Electrolytic For what virtue? Nothing, I just have 2 10000uF and 2 4700uF and I wanted to use them in the power supply of my DAC. 14700uF should be slightly better than 10000uF, shouldn't they? I don't know of problems to parallel two electrlytics of the same brand and type, am I wrong? IN PARALLEL WITH 0.1uF 400V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap IN PARALLEL WITH 2.2uF 100V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap Something hf (rf) bypassing is relevant yes, to my knowledge 1 uF makes sense and it ought to be uncritical. My knowledge is incomplete. Let's say 1 2.2uF + 1 0.1uF average ~1uF ;-) I'm joking, I simply wanted to know that such a configuration wouldn't lead to unwanted interactions between electrlytics and polyprops and between the two polyprops I thought to place them together, all in parallel just after the diodes. - Are unwanted interactions between the two electrlytics and the two Polyprops possible? Too complicated, one big and one small, say 1 uF, and perhaps a tiny ceramic. Yes I have some 100K ceramics to add to the mix, I forgot them! - Is the HOVLAND MusiCap right for such PS application? - Is coupling the 0.1uF MusiCap with the 2.2uF one anyway useful? That's only "one digit" smaller, 3 or 4 digits smaller makes more sense, capacitors do have a bandwidth, but it is not *that* narrow. Thank you for the explanation! Fabio |
#6
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PS caps : electrolytics + polypropylene, interactions?
Hi Peter,
this's the possible configuration in my DAC's PS : 10000uF 50V ELNA Cerafine Electrolytic IN PARALLEL WITH 4700uF 50V ELNA Cerafine Electrolytic For what virtue? Nothing, I just have 2 10000uF and 2 4700uF and I wanted to use them in the power supply of my DAC. 14700uF should be slightly better than 10000uF, shouldn't they? I don't know of problems to parallel two electrlytics of the same brand and type, am I wrong? IN PARALLEL WITH 0.1uF 400V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap IN PARALLEL WITH 2.2uF 100V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap Something hf (rf) bypassing is relevant yes, to my knowledge 1 uF makes sense and it ought to be uncritical. My knowledge is incomplete. Let's say 1 2.2uF + 1 0.1uF average ~1uF ;-) I'm joking, I simply wanted to know that such a configuration wouldn't lead to unwanted interactions between electrlytics and polyprops and between the two polyprops I thought to place them together, all in parallel just after the diodes. - Are unwanted interactions between the two electrlytics and the two Polyprops possible? Too complicated, one big and one small, say 1 uF, and perhaps a tiny ceramic. Yes I have some 100K ceramics to add to the mix, I forgot them! - Is the HOVLAND MusiCap right for such PS application? - Is coupling the 0.1uF MusiCap with the 2.2uF one anyway useful? That's only "one digit" smaller, 3 or 4 digits smaller makes more sense, capacitors do have a bandwidth, but it is not *that* narrow. Thank you for the explanation! Fabio |
#7
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PS caps : electrolytics + polypropylene, interactions?
Hi Peter,
this's the possible configuration in my DAC's PS : 10000uF 50V ELNA Cerafine Electrolytic IN PARALLEL WITH 4700uF 50V ELNA Cerafine Electrolytic For what virtue? Nothing, I just have 2 10000uF and 2 4700uF and I wanted to use them in the power supply of my DAC. 14700uF should be slightly better than 10000uF, shouldn't they? I don't know of problems to parallel two electrlytics of the same brand and type, am I wrong? IN PARALLEL WITH 0.1uF 400V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap IN PARALLEL WITH 2.2uF 100V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap Something hf (rf) bypassing is relevant yes, to my knowledge 1 uF makes sense and it ought to be uncritical. My knowledge is incomplete. Let's say 1 2.2uF + 1 0.1uF average ~1uF ;-) I'm joking, I simply wanted to know that such a configuration wouldn't lead to unwanted interactions between electrlytics and polyprops and between the two polyprops I thought to place them together, all in parallel just after the diodes. - Are unwanted interactions between the two electrlytics and the two Polyprops possible? Too complicated, one big and one small, say 1 uF, and perhaps a tiny ceramic. Yes I have some 100K ceramics to add to the mix, I forgot them! - Is the HOVLAND MusiCap right for such PS application? - Is coupling the 0.1uF MusiCap with the 2.2uF one anyway useful? That's only "one digit" smaller, 3 or 4 digits smaller makes more sense, capacitors do have a bandwidth, but it is not *that* narrow. Thank you for the explanation! Fabio |
#8
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PS caps : electrolytics + polypropylene, interactions?
Hi,
about electrlytics and polypros I found an old article of rec.audio.high-end dated 1993 where Dirk Wright wrote : "Generally, making parallel combinations of different types of capacitors can help, but you can easily run into instablity due to parasitic inductances. Polyprops have more inductance than ceramics, so they can look like an open circuit at high frquencies. In the Linear Technology Handbook, they found a simple combination of an electrolytic and ceramic to be a good comprimise. Combinations of electrolytics and polyprops lead to ringing and oscillation in thier tests." Can anyone confirm? If so, the ELNA Cerfaine electrlytics + the HOVLAND Musicaps polyprops in my configuration are not good. Thank you in advance, Fabio this's the possible configuration in my DAC's PS : 10000uF 50V ELNA Cerafine Electrolytic IN PARALLEL WITH 4700uF 50V ELNA Cerafine Electrolytic For what virtue? Nothing, I just have 2 10000uF and 2 4700uF and I wanted to use them in the power supply of my DAC. 14700uF should be slightly better than 10000uF, shouldn't they? I don't know of problems to parallel two electrlytics of the same brand and type, am I wrong? IN PARALLEL WITH 0.1uF 400V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap IN PARALLEL WITH 2.2uF 100V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap Something hf (rf) bypassing is relevant yes, to my knowledge 1 uF makes sense and it ought to be uncritical. My knowledge is incomplete. Let's say 1 2.2uF + 1 0.1uF average ~1uF ;-) I'm joking, I simply wanted to know that such a configuration wouldn't lead to unwanted interactions between electrlytics and polyprops and between the two polyprops I thought to place them together, all in parallel just after the diodes. - Are unwanted interactions between the two electrlytics and the two Polyprops possible? Too complicated, one big and one small, say 1 uF, and perhaps a tiny ceramic. Yes I have some 100K ceramics to add to the mix, I forgot them! - Is the HOVLAND MusiCap right for such PS application? - Is coupling the 0.1uF MusiCap with the 2.2uF one anyway useful? That's only "one digit" smaller, 3 or 4 digits smaller makes more sense, capacitors do have a bandwidth, but it is not *that* narrow. Thank you for the explanation! Fabio |
#9
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PS caps : electrolytics + polypropylene, interactions?
Hi,
about electrlytics and polypros I found an old article of rec.audio.high-end dated 1993 where Dirk Wright wrote : "Generally, making parallel combinations of different types of capacitors can help, but you can easily run into instablity due to parasitic inductances. Polyprops have more inductance than ceramics, so they can look like an open circuit at high frquencies. In the Linear Technology Handbook, they found a simple combination of an electrolytic and ceramic to be a good comprimise. Combinations of electrolytics and polyprops lead to ringing and oscillation in thier tests." Can anyone confirm? If so, the ELNA Cerfaine electrlytics + the HOVLAND Musicaps polyprops in my configuration are not good. Thank you in advance, Fabio this's the possible configuration in my DAC's PS : 10000uF 50V ELNA Cerafine Electrolytic IN PARALLEL WITH 4700uF 50V ELNA Cerafine Electrolytic For what virtue? Nothing, I just have 2 10000uF and 2 4700uF and I wanted to use them in the power supply of my DAC. 14700uF should be slightly better than 10000uF, shouldn't they? I don't know of problems to parallel two electrlytics of the same brand and type, am I wrong? IN PARALLEL WITH 0.1uF 400V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap IN PARALLEL WITH 2.2uF 100V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap Something hf (rf) bypassing is relevant yes, to my knowledge 1 uF makes sense and it ought to be uncritical. My knowledge is incomplete. Let's say 1 2.2uF + 1 0.1uF average ~1uF ;-) I'm joking, I simply wanted to know that such a configuration wouldn't lead to unwanted interactions between electrlytics and polyprops and between the two polyprops I thought to place them together, all in parallel just after the diodes. - Are unwanted interactions between the two electrlytics and the two Polyprops possible? Too complicated, one big and one small, say 1 uF, and perhaps a tiny ceramic. Yes I have some 100K ceramics to add to the mix, I forgot them! - Is the HOVLAND MusiCap right for such PS application? - Is coupling the 0.1uF MusiCap with the 2.2uF one anyway useful? That's only "one digit" smaller, 3 or 4 digits smaller makes more sense, capacitors do have a bandwidth, but it is not *that* narrow. Thank you for the explanation! Fabio |
#10
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PS caps : electrolytics + polypropylene, interactions?
Hi,
about electrlytics and polypros I found an old article of rec.audio.high-end dated 1993 where Dirk Wright wrote : "Generally, making parallel combinations of different types of capacitors can help, but you can easily run into instablity due to parasitic inductances. Polyprops have more inductance than ceramics, so they can look like an open circuit at high frquencies. In the Linear Technology Handbook, they found a simple combination of an electrolytic and ceramic to be a good comprimise. Combinations of electrolytics and polyprops lead to ringing and oscillation in thier tests." Can anyone confirm? If so, the ELNA Cerfaine electrlytics + the HOVLAND Musicaps polyprops in my configuration are not good. Thank you in advance, Fabio this's the possible configuration in my DAC's PS : 10000uF 50V ELNA Cerafine Electrolytic IN PARALLEL WITH 4700uF 50V ELNA Cerafine Electrolytic For what virtue? Nothing, I just have 2 10000uF and 2 4700uF and I wanted to use them in the power supply of my DAC. 14700uF should be slightly better than 10000uF, shouldn't they? I don't know of problems to parallel two electrlytics of the same brand and type, am I wrong? IN PARALLEL WITH 0.1uF 400V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap IN PARALLEL WITH 2.2uF 100V HOVLAND MusiCap Film & Aluminum Foil Polypropylene cap Something hf (rf) bypassing is relevant yes, to my knowledge 1 uF makes sense and it ought to be uncritical. My knowledge is incomplete. Let's say 1 2.2uF + 1 0.1uF average ~1uF ;-) I'm joking, I simply wanted to know that such a configuration wouldn't lead to unwanted interactions between electrlytics and polyprops and between the two polyprops I thought to place them together, all in parallel just after the diodes. - Are unwanted interactions between the two electrlytics and the two Polyprops possible? Too complicated, one big and one small, say 1 uF, and perhaps a tiny ceramic. Yes I have some 100K ceramics to add to the mix, I forgot them! - Is the HOVLAND MusiCap right for such PS application? - Is coupling the 0.1uF MusiCap with the 2.2uF one anyway useful? That's only "one digit" smaller, 3 or 4 digits smaller makes more sense, capacitors do have a bandwidth, but it is not *that* narrow. Thank you for the explanation! Fabio |
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