PatPet,
I have loaded your file on the PSU designer
The values are too high for me...
500 milli Farad = 0.5 Farad at 50 volts it will cost arm and legs
100 milli Farad = 0.1 Farad
To be more acurate go for 60 000 micro F and lower the resistors CRC
with 2 * 60 000micro and 0.25 Ohms youll have 6 milli volts ripple...
will be easy and good cost..
the CRCRC with the same values, and one more stage, excellent...
I send back the 2 prototypes one CRC and the other CRCRC
Regards.
Alain.
I have loaded your file on the PSU designer
The values are too high for me...
500 milli Farad = 0.5 Farad at 50 volts it will cost arm and legs
100 milli Farad = 0.1 Farad
To be more acurate go for 60 000 micro F and lower the resistors CRC
with 2 * 60 000micro and 0.25 Ohms youll have 6 milli volts ripple...
will be easy and good cost..
the CRCRC with the same values, and one more stage, excellent...
I send back the 2 prototypes one CRC and the other CRCRC
Regards.
Alain.
Attachments
Thank you Alain Dupont
But how much space does a 22000uF capacitor occupy?
Also, what is the difference between
(-27)--------
C1
(g)-----------
C2
(+27)--------
and
(27)---------
C3
(g)-----------
if they are the same, what are the relationships among C1, C2 and C3?
C1 + C2 = C3?
But how much space does a 22000uF capacitor occupy?
Also, what is the difference between
(-27)--------
C1
(g)-----------
C2
(+27)--------
and
(27)---------
C3
(g)-----------
if they are the same, what are the relationships among C1, C2 and C3?
C1 + C2 = C3?
PatPet,
>> But how much space does a 22000uF capacitor occupy?
Panasonic TS serie 22 000 micro f 35 Volts Dia=35mm Lg=50 mm
Digikey: P6921-ND at 9.6cad$ idem for 50 Volts Digikey: P6946-ND at 11.4 cad $
You can parallel 3 of these to make 66 000 micro Farad.
This will be better because you parallel the internal resistor of the caps
so you have lower global resistance.
>> if they are the same, what are the relationships among C1, C2 and C3?
No relation between the C1, C2, C3 idealy should be similar values...
C1 = C2 = C3
Take care to use a bridge rectifier for > 250 amperes peek
because there is a huge current at power up...
If the voltage obtained at C3 is too much, better use a transfo with a lower
secondary voltage.
The best thing is to use only little resistors to avoid too much losses
and big capacitors, to get solid bass.
Regards.
Alain.
>> But how much space does a 22000uF capacitor occupy?
Panasonic TS serie 22 000 micro f 35 Volts Dia=35mm Lg=50 mm
Digikey: P6921-ND at 9.6cad$ idem for 50 Volts Digikey: P6946-ND at 11.4 cad $
You can parallel 3 of these to make 66 000 micro Farad.
This will be better because you parallel the internal resistor of the caps
so you have lower global resistance.
>> if they are the same, what are the relationships among C1, C2 and C3?
No relation between the C1, C2, C3 idealy should be similar values...
C1 = C2 = C3
Take care to use a bridge rectifier for > 250 amperes peek
because there is a huge current at power up...
If the voltage obtained at C3 is too much, better use a transfo with a lower
secondary voltage.
The best thing is to use only little resistors to avoid too much losses
and big capacitors, to get solid bass.
Regards.
Alain.
Thank you for your help
Regarding the two filtering circuits, i mean if
do the same reduction in ripple voltage
what should be the value for the capacitance respectively for each of them?
Regarding the two filtering circuits, i mean if
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
do the same reduction in ripple voltage
what should be the value for the capacitance respectively for each of them?
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