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Problem Transistor BC337, galletto V54

1
Hi, I have a problem with a galletto v54 that I have modified all the components, galleto works well, kinea K, CAN, BDM etc, but the transistor BC 337, it gets very hot, to the point that you can not touch it, the voltages are Correct, I've changed the transistor and it's still the same.

Do you know what is due?

Thank you
Thanks given by:
2
Are u using 12v or 24v?
Thanks given by:
3
(01-16-2017, 09:39 PM)Simial Wrote: Are u using 12v or 24v?

12v, to be exact, power supply on 13-14v, other gallettos do not present that problem

Thanks
Thanks given by:
4
(01-16-2017, 09:51 PM)queroseno Wrote:
(01-16-2017, 09:39 PM)Simial Wrote: Are u using 12v or 24v?

12v, to be exact, power supply on 13-14v, other gallettos do not present that problem

Thanks

hi measure the voltage on base and after on emiter tell me the values and i will help you base must is 0.7V over the emiter for example emiter 1.2V them base 1.9V at less 1.95 better.
Thanks given by:
5
(01-16-2017, 11:50 PM)opelara Wrote:
(01-16-2017, 09:51 PM)queroseno Wrote:
(01-16-2017, 09:39 PM)Simial Wrote: Are u using 12v or 24v?

12v, to be exact, power supply on 13-14v, other gallettos do not present that problem

Thanks

hi measure the voltage on base and after on emiter tell me the values and i will help you base must is 0.7V over the emiter for example emiter 1.2V them base 1.9V at less 1.95 better.


Thanks, emiter 5.15v, Base 5.69v, Colector, 12.83v tension power supply 12.83v
Thanks given by:
6
(01-16-2017, 09:37 PM)queroseno Wrote: Hi, I have a problem with a galletto v54 that I have modified all the components, galleto works well, kinea K, CAN, BDM etc, but the transistor BC 337, it gets very hot, to the point that you can not touch it, the voltages are Correct, I've changed the transistor and it's still the same.

Do you know what is due?

Thank you
you have a broken chip u7
regards
Thanks given by: queroseno
7
(01-17-2017, 03:33 AM)gazownik Wrote:
(01-16-2017, 09:37 PM)queroseno Wrote: Hi, I have a problem with a galletto v54 that I have modified all the components, galleto works well, kinea K, CAN, BDM etc, but the transistor BC 337, it gets very hot, to the point that you can not touch it, the voltages are Correct, I've changed the transistor and it's still the same.

Do you know what is due?

Thank you
you have a broken chip u7
regards

Thank you, know the reference to request it, for example in farnell?
Thanks given by:
8
(01-17-2017, 02:09 AM)queroseno Wrote:
(01-16-2017, 11:50 PM)opelara Wrote:
(01-16-2017, 09:51 PM)queroseno Wrote:
(01-16-2017, 09:39 PM)Simial Wrote: Are u using 12v or 24v?

12v, to be exact, power supply on 13-14v, other gallettos do not present that problem

Thanks

hi measure the voltage on base and after on emiter tell me the values and i will help you base must is 0.7V over the emiter for example emiter 1.2V them base 1.9V at less 1.95 better.


Thanks, emiter 5.15v, Base 5.69v, Colector, 12.83v tension power supply 12.83v


emiter must be 0.00V tranzistor NPN in this case must is 0.00V colector is conected to rele coil? be carefull the base isn't to center look at link.

https://www.google.gr/search?q=BC+337&cl...55Tdb2M%3A
Thanks given by:
9
(01-18-2017, 01:51 AM)opelara Wrote:
(01-17-2017, 02:09 AM)queroseno Wrote:
(01-16-2017, 11:50 PM)opelara Wrote:
(01-16-2017, 09:51 PM)queroseno Wrote:
(01-16-2017, 09:39 PM)Simial Wrote: Are u using 12v or 24v?

12v, to be exact, power supply on 13-14v, other gallettos do not present that problem

Thanks

hi measure the voltage on base and after on emiter tell me the values and i will help you base must is 0.7V over the emiter for example emiter 1.2V them base 1.9V at less 1.95 better.


Thanks, emiter 5.15v, Base 5.69v, Colector, 12.83v tension power supply 12.83v


emiter must be 0.00V tranzistor NPN in this case must is 0.00V colector is conected to rele coil? be carefull the base isn't to center look at link.

https://www.google.gr/search?q=BC+337&cl...55Tdb2M%3A

buddy this transistor operates in a different system here and emitter does not need to be grounded, works as a voltage stabilizer.
It is a stabilizer for u7
regards
Thanks given by:

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