SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

[Jeff Pepin]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

this look pretty sweet , but absolutly not sure because i know nothing in audio : i juste fuin love this wathever it is

2N3055/MJ2955 NPN/PNP Matched Pair Transistors

[Jeff Pepin]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)



hahahaha what if ?? i want a transistor , ok wich package ? , i dont want it in a package , just the transistor pleaze XD ahah

[stj]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

the original module was 130w, a tip3055 is only about 75w afaik.
even the 2n3055 in a metal can is only 115w

[Jeff Pepin]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

so this circuit have 2Xnpn in darlington configuration , and 2 pnp too , i will try to replace that only by 1 pair 1 1/2 X Rated, like tip35C and tip36C and bypas the ''darlington setup and see what it will happen , maybe the amp will be not loud as should maybe it will Explode , but this amp is not destined to be drived at max , and not destined to survive at base it should deliver the tip35/36C capabilities at minimum that is not so bad
Experiencing time , COTTON SMOOKE

i have already worked on blowed Su-g70 and su -g90 Amp with same defect ( overheated power module ) after Reflowed Hbrid ic ( to replace slided transistors ,, the amp was able to get audio but not loud as should ( Probably because one of 2 pair of transistor was blowed and amplifier lost his half punch ) ,

[Jeff Pepin]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

EATING KRAZY GLUE IS BAD FOR HEALTH

[stj]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

they are not run in parallel, that's a stereo amp.
you need one NPN and one PNP for each channel.

[Jeff Pepin]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

they are not run in parallel, that's a stereo amp.
you need one NPN and one PNP for each channel.

oups okay ,yeah i think i know what you mean , need mores wires in this case lol , did you think i can use setup of any matched pairs like 2X 2sd2439 / 2sb1588 i know these are Overrated , 160V , if i run it to 60V insead of 160V, what is chance that is work anything ? a transistor of 160V rating can be run at half Supply ? did it work like that? , using an overrated transistor in a less power supply , it will reduce Heat ? , and risk to Blowing transistor? , or it will simply destroy the power suply by taking too much current ? , sorry i have somes noobs question that pass in my head . but plz dont forget that presently i study hard in experiencing anything that look legit , thanks a lot for your time

[stj]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

transistor voltage ratings are only maximum, they will work just fine on lower voltages.

[Jeff Pepin]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

transistor voltage ratings are only maximum, they will work just fine on lower voltages.

magiemagnifimerveilleux

in french it represent
magique
magnifique
merveilleux
(les 3 en meme temps)

[Jeff Pepin]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

just to be clear ?
for the npn transistor
Collector = power rail positive
Base = Signal input ( audio signal)
Emitter = Stage output ( audio out)

For the pnp transistor connection is
Collector = Power Rail negative
Base =Stage output (audio out)
Emitter = Signal input (audio signal)

nothing wrong ?

[Jeff Pepin]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

[budm]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

Transistor should be rated at x 2 of what the Voltage it will be exposed to. So you should get the transistor that is rated at >120V.

[Jeff Pepin]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

Transistor should be rated at x 2 of what the Voltage it will be exposed to. So you should get the transistor that is rated at >120V.

what is your reccomnedation for a +/-60V rail ?

[stj]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

he said, 120 or higher.
so at 160 your fine.

[budm]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

BTW, as far as the Wattage rating, the Transistor will dissipate the most power when the load is at half power.

[Jeff Pepin]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)


final schematic , comments? anywone see a FATAL ERROR ? otherwise its time to assembly the whole thing and put 115Von it

[stj]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

dont forget to insulate the transistors from the heatsink so you dont short all the tabs together.

[Jeff Pepin]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

dont forget to insulate the transistors from the heatsink so you dont short all the tabs together.

they are allready , they are plastic encapsulation h-30min before my capacitor in an eye

[budm]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

"For the pnp transistor connection is
Collector = Power Rail negative
Base =Stage output (audio out)
Emitter = Signal input (audio signal) "

Emitter is the output. Emitter of the NPN and the Emitter of the PNP are electrically connected together to form output pin for driving the speaker.
See figure 4 for basic push-pull output.
http://sound.westhost.com/articles/amp-classes.htm
That is a great site for learning.

[Jeff Pepin]

Re: SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)