Well, the shunt/voltage set part is working, the v-out is correct and the shunt-sink gets (really) warm.. and when using led-test with my multimeter, all leds are fine and light up. The problem is that the CCS current is set really high, since the led-string doesn't light as it should i have voltage over it, but way to low. there "missing" voltage on the leds are over the 2SK117, so i have connection to ground.
Damn, i guess it must be the FET, and i don't have any more of those left i think :-(
Forgot to say that it is a SSLV1.1 i'm talking about 🙂
Damn, i guess it must be the FET, and i don't have any more of those left i think :-(
Forgot to say that it is a SSLV1.1 i'm talking about 🙂
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Have you got any IRF9530? It will do meantime. Was the 9610 overly hot for a long period? Any chance of static?
Actually i don't know when it happened.. it have my own made PCB's with two SSLV1.1-positive per PCB. I run two boards and one is fully ok (both regs work) while the other have the same problem on both regs - and i quite shure it worked before, so i'm starting to think it may be a static-problem while i had them outside my case a while ago. I'll have to order a pair of new fets and try then. Can't think of anything else wrong with the regs.
Thanks for your help!
Thanks for your help!
do you think i'll be able to power stereo pair of D1 i/v with the shunt? i am a bit weary since my failure with 10x tda1543 setup...
edit: it could certainly power 4 (for balanced) zen i/v stages, right? 😉
edit: it could certainly power 4 (for balanced) zen i/v stages, right? 😉
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I want to use Salas V1
Out1: 18V // In X1 V DC
Out2: 12V// In Y2 V DC
X1 = ?
Y2 = ?
trimmer = 5k?
I'm sorry, I did not learn English.
Out1: 18V // In X1 V DC
Out2: 12V// In Y2 V DC
X1 = ?
Y2 = ?
trimmer = 5k?
I'm sorry, I did not learn English.
do you think i'll be able to power stereo pair of D1 i/v with the shunt? i am a bit weary since my failure with 10x tda1543 setup...
edit: it could certainly power 4 (for balanced) zen i/v stages, right? 😉
To answer that we need data. I.e. What is your measured CCS setting per reg and what is D1's consumption per channel. If looking for a common reg on two channels or for double mono configuration also.
I want to use Salas V1
Out1: 18V // In X1 V DC
Out2: 12V// In Y2 V DC
X1 = ?
Y2 = ?
trimmer = 5k?
I'm sorry, I did not learn English.
You mean SSLV1.1 (Bib)? If yes:
2 red LEDS, D101/301 jumper, 3.5mA idss Q103/303, 1.5K R103, 5K VR105 trimmer. Those should give you about 9V to 24V DC output setting range depending on the transformer. Use 15VAC transformer for 12VDC and 20VAC for 18VDC output regulators.
P.S. I don't know what you refer to as X & Y.
I use this:
Thank you reply.
With that use 6 red leds for 12V and 9 red leds for 18V. It will not be exact, depends on the leds tolerances. If you want some trimmer range for precision, use 5 and 8 leds plus 1K trimmer as rheostat in place of the missing led. For transformers, choose as I wrote in my previous answer.
hi salas, i have a major situation on my inexperienced hands...
i also use the same circuit as totodiy to make my pcb... however, i print out to-220 mount for 9240/240.....
could i sub 9530/9510 without changing the circuit?
thanks.
i also use the same circuit as totodiy to make my pcb... however, i print out to-220 mount for 9240/240.....
could i sub 9530/9510 without changing the circuit?
thanks.
9240 is a Pchannel fet
you can use a 95x0 as a subsitute. But check dissipation and temperature.
240 is an Nchannel fet
you must use 5x0 as a substitute. Again check dissipation and temperature.
you can use a 95x0 as a subsitute. But check dissipation and temperature.
240 is an Nchannel fet
you must use 5x0 as a substitute. Again check dissipation and temperature.
thank you, andrew. that's a relief.
could i also know what resistor values need be changed if any?
i'd study for it myself but it's such a massive thread and i want to build it right away...
could i also know what resistor values need be changed if any?
i'd study for it myself but it's such a massive thread and i want to build it right away...
You need to measure the "as built" circuit to determine the currents flowing.
Only after doing tha, are you in a position to make informed decisions on changes to the design.
Only after doing tha, are you in a position to make informed decisions on changes to the design.
Phew, looks like this is my answer. Thank you from the future, salas 😉 http://www.diyaudio.com/forums/anal...hotrodded-blue-dcb1-build-78.html#post2484842
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Niko kalimera
I m finalizing my Shigaclone and ended up with a separate PSU case.
Any suggestions on what wire and socket/plug to use to transfer the twisted pairs from the PSU case to the transport?
I m thinking 4way XLRs for the socket/plug and 2x1.5mm OLFLEX 110CY for each pair.
Any objections? You think the plug/socket or the ~30cm cable runs could create any additional oscillations or something?
Thanks in advance
I m finalizing my Shigaclone and ended up with a separate PSU case.
Any suggestions on what wire and socket/plug to use to transfer the twisted pairs from the PSU case to the transport?
I m thinking 4way XLRs for the socket/plug and 2x1.5mm OLFLEX 110CY for each pair.
Any objections? You think the plug/socket or the ~30cm cable runs could create any additional oscillations or something?
Thanks in advance
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