SVI3206D Hybrid IC ( BC POWER MODULE BY SANYO)

[Jeff Pepin]

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.

yeah thanks i have just take conscioence of that , PNP^push on speaker , NPN pull on it , at itle Both center the speaker to 0 in function of the bias setup , i think i know a new book now and i fkin love that

[Jeff Pepin]

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

how we delete a comment ? lol

[Jeff Pepin]

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



WOW magnifique !

[budm]

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

That is such a great web site that have so much information. If you have to read them you will learn so much.

[Jeff Pepin]

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

That is such a great web site that have so much information. If you have to read them you will learn so much.

fOR SURE I WILL

Done !

[Jeff Pepin]

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

i wait this moment since 2 days now , then now i fear to plug it . ajaha okay i test that , it work or it blow , what can i do for check before putting AC on it? any hints ? ohh noo no question to plug this amp without recording that ! , phone need to be charg'D

[stj]

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

wear eye protection - resin from power transistors travels a long way

[Jeff Pepin]

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



Then the fuse blowed ,
i will remove the 4 transistors then try again without load ,

theses pnp/npn come from a non working amplifier , so i asssume they leak level 100

no smoke it will work , , i'm persistent

[budm]

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

The transistors base drive circuits may be damaged when the power transistors went out, they are direct couple circuits. You should plug the unit into the AC socket that will put the 120V lamp in series with the unit you are working on. you can use 60~75W lamp, the lamp will stay on bright if the circuit draws too much current constantly, it saves me many output transistors.
http://s807.photobucket.com/user/bud...?sort=3&page=1

[Jeff Pepin]

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

The transistors base drive circuits may be damaged when the power transistors went out, they are direct couple circuits. You should plug the unit into the AC socket that will put the 120V lamp in series with the unit you are working on. you can use 60~75W lamp, the lamp will stay on bright if the circuit draws too much current constantly, it saves me many output transistors.
http://s807.photobucket.com/user/bud...?sort=3&page=1

i agree for the lamp in serie really nice idea thanks a lot!

[Jeff Pepin]

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

First REsult : Channel 2 Shorted out Collecter/Emmiter on both devices , channel one look good

no smoke

115V bulb trick ready
1,5 Amp fuse rather 5A

Myself AMPlifier

[budm]

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

More likely you have more damaged parts in that module when the power transistors went out the first time.

[Jeff Pepin]

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

yeah for sure , and at this point , i will isolate the 60V rail and see for damage on ic ,, then if it destroyed , i will probably drop the part 2 , eliminatig the whole IC , and build a basic bias network ,

[Jeff Pepin]

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

finally at end this tread will be converting a new class A onto Class B amplifier XD

[Jeff Pepin]

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

[budm]

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

It is not a complete lost due to the fact that you learn quite a bit about the circuits.

[Jeff Pepin]

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

I HAVE JUST FOUD!!!

Theses stranges Transistors on Svi's look like

Nmos transistor
Pmos transistor

[Jeff Pepin]

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

here we go !! , so svi's are mosfet based ??

need to sleep

[budm]

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

If it is they would have put the word MOSFET on the module to advertise it.

[Jeff Pepin]

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

If it is they would have put the word MOSFET on the module to advertise it.

maybe its when the time of '' sold svi'S is more benefit than only mosfet '' begined
maybe they just ordered to manufacturer mosfetS Without encapsulation for they own desing ,

if its mosfets im happy because i have a lot of Broken CAr amps to salvage

i need to test the bc module for proper operation Without Power rail and power devices on it , just to see if base of each channels are good ,