Select between two sources with transistors
I'm sorry if this has been asked before but I can't find useful data on this matter.
I have two sources of data and I want to select one of them using transistors.
If I had to guess I'd make the circuit below.
Sadly I never had any electronics courses so maybe I'm missing something obvious here but as I can't find anything about my goal on internet I'd rather ask here.
I just heard about SSRs and they seem to be the best solution for my needs, but I still want to know about how to do this with transistors if this is possible.
Thanks
Vout is bottom-right
Edit:
The sources are composite video signals
transistors relay voltage-source
asked 2 days ago
RenéXRenéX
83
New contributor
RenéX is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I'm sorry if this has been asked before but I can't find useful data on this matter.
I have two sources of data and I want to select one of them using transistors.
If I had to guess I'd make the circuit below.
Sadly I never had any electronics courses so maybe I'm missing something obvious here but as I can't find anything about my goal on internet I'd rather ask here.
I just heard about SSRs and they seem to be the best solution for my needs, but I still want to know about how to do this with transistors if this is possible.
Thanks
Vout is bottom-right
Edit:
The sources are composite video signals
transistors relay voltage-source
asked 2 days ago
RenéXRenéX
83
New contributor
RenéX is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
What kind of “sources” are these?
– user2233709
2 days ago
They are composite video signals
– RenéX
yesterday
add a comment |
I'm sorry if this has been asked before but I can't find useful data on this matter.
I have two sources of data and I want to select one of them using transistors.
If I had to guess I'd make the circuit below.
Sadly I never had any electronics courses so maybe I'm missing something obvious here but as I can't find anything about my goal on internet I'd rather ask here.
I just heard about SSRs and they seem to be the best solution for my needs, but I still want to know about how to do this with transistors if this is possible.
Thanks
Vout is bottom-right
Edit:
The sources are composite video signals
transistors relay voltage-source
asked 2 days ago
RenéXRenéX
83
New contributor
RenéX is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I'm sorry if this has been asked before but I can't find useful data on this matter.
I have two sources of data and I want to select one of them using transistors.
If I had to guess I'd make the circuit below.
Sadly I never had any electronics courses so maybe I'm missing something obvious here but as I can't find anything about my goal on internet I'd rather ask here.
I just heard about SSRs and they seem to be the best solution for my needs, but I still want to know about how to do this with transistors if this is possible.
Thanks
Vout is bottom-right
Edit:
The sources are composite video signals
transistors relay voltage-source
transistors relay voltage-source
asked 2 days ago
RenéXRenéX
83
New contributor
RenéX is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 days ago
RenéXRenéX
83
New contributor
RenéX is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
RenéX
asked 2 days ago
RenéXRenéX
83
New contributor
RenéX is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 days ago
RenéXRenéX
83
asked 2 days ago
RenéXRenéX
83
83
New contributor
RenéX is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
RenéX is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
RenéX is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
What kind of “sources” are these?
– user2233709
2 days ago
They are composite video signals
– RenéX
yesterday
add a comment |
What kind of “sources” are these?
– user2233709
2 days ago
They are composite video signals
– RenéX
yesterday
What kind of “sources” are these?
– user2233709
2 days ago
What kind of “sources” are these?
– user2233709
2 days ago
They are composite video signals
– RenéX
yesterday
They are composite video signals
– RenéX
yesterday
add a comment |
2 Answers
2
active
oldest
votes
If you're selecting between two sources of binary digital data, you should be looking for a digital multiplexer. If you're selecting between two analog signals you should be looking for an analog multiplexer. There are dozens of part numbers of either type available from the major IC vendors, depending on the details of your requirements.
Buying either of these circuits as an IC will probably be lower cost (after accounting for assembly costs) and almost certainly be more reliable and give more consistent results than constructing them out of transistors.
answered 2 days ago
The PhotonThe Photon
83.5k396194
Thanks I'll look at these analog multiplexers.
– RenéX
yesterday
By the time I receive them, is there hope in trying to do something testable (even if far from perfect) with the setup in the OP? I'd like to understand why it doesn't work, be it because of signals stability, frequency response, etc.
– RenéX
yesterday
To be honest, your circuit could more or less work. Whether it works and/or works well depends on the nature of the sources (Source1 and Source 2), and the load (where is the output signal going). Since you haven't shared that information, I can't say why it didn't work for you.
– The Photon
yesterday
I wasn't able to try when I asked and I wanted to be sure the circuit was not something stupid. I finally tried and it works perfectly, I didn't expect that. I sure will buy multiplexers though, thanks
– RenéX
yesterday
@RenéX, now you've shared that these are video signals, I will mention that AFAIK there are ICs specifically sold as video multiplexers. I'm not sure exactly what formats they support or whether they will fit your application.
– The Photon
20 hours ago
add a comment |
Part like this will do for analog or digital switching at 3.3V levels.
https://www.analog.com/media/en/technical-documentation/data-sheets/ADG839.pdf
What voltage and current levels are you after?
answered 2 days ago
CrossRoadsCrossRoads
1,2698
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
If you're selecting between two sources of binary digital data, you should be looking for a digital multiplexer. If you're selecting between two analog signals you should be looking for an analog multiplexer. There are dozens of part numbers of either type available from the major IC vendors, depending on the details of your requirements.
Buying either of these circuits as an IC will probably be lower cost (after accounting for assembly costs) and almost certainly be more reliable and give more consistent results than constructing them out of transistors.
answered 2 days ago
The PhotonThe Photon
83.5k396194
Thanks I'll look at these analog multiplexers.
– RenéX
yesterday
By the time I receive them, is there hope in trying to do something testable (even if far from perfect) with the setup in the OP? I'd like to understand why it doesn't work, be it because of signals stability, frequency response, etc.
– RenéX
yesterday
To be honest, your circuit could more or less work. Whether it works and/or works well depends on the nature of the sources (Source1 and Source 2), and the load (where is the output signal going). Since you haven't shared that information, I can't say why it didn't work for you.
– The Photon
yesterday
I wasn't able to try when I asked and I wanted to be sure the circuit was not something stupid. I finally tried and it works perfectly, I didn't expect that. I sure will buy multiplexers though, thanks
– RenéX
yesterday
@RenéX, now you've shared that these are video signals, I will mention that AFAIK there are ICs specifically sold as video multiplexers. I'm not sure exactly what formats they support or whether they will fit your application.
– The Photon
20 hours ago
add a comment |
If you're selecting between two sources of binary digital data, you should be looking for a digital multiplexer. If you're selecting between two analog signals you should be looking for an analog multiplexer. There are dozens of part numbers of either type available from the major IC vendors, depending on the details of your requirements.
Buying either of these circuits as an IC will probably be lower cost (after accounting for assembly costs) and almost certainly be more reliable and give more consistent results than constructing them out of transistors.
answered 2 days ago
The PhotonThe Photon
83.5k396194
Thanks I'll look at these analog multiplexers.
– RenéX
yesterday
By the time I receive them, is there hope in trying to do something testable (even if far from perfect) with the setup in the OP? I'd like to understand why it doesn't work, be it because of signals stability, frequency response, etc.
– RenéX
yesterday
To be honest, your circuit could more or less work. Whether it works and/or works well depends on the nature of the sources (Source1 and Source 2), and the load (where is the output signal going). Since you haven't shared that information, I can't say why it didn't work for you.
– The Photon
yesterday
I wasn't able to try when I asked and I wanted to be sure the circuit was not something stupid. I finally tried and it works perfectly, I didn't expect that. I sure will buy multiplexers though, thanks
– RenéX
yesterday
@RenéX, now you've shared that these are video signals, I will mention that AFAIK there are ICs specifically sold as video multiplexers. I'm not sure exactly what formats they support or whether they will fit your application.
– The Photon
20 hours ago
add a comment |
If you're selecting between two sources of binary digital data, you should be looking for a digital multiplexer. If you're selecting between two analog signals you should be looking for an analog multiplexer. There are dozens of part numbers of either type available from the major IC vendors, depending on the details of your requirements.
Buying either of these circuits as an IC will probably be lower cost (after accounting for assembly costs) and almost certainly be more reliable and give more consistent results than constructing them out of transistors.
answered 2 days ago
The PhotonThe Photon
83.5k396194
If you're selecting between two sources of binary digital data, you should be looking for a digital multiplexer. If you're selecting between two analog signals you should be looking for an analog multiplexer. There are dozens of part numbers of either type available from the major IC vendors, depending on the details of your requirements.
Buying either of these circuits as an IC will probably be lower cost (after accounting for assembly costs) and almost certainly be more reliable and give more consistent results than constructing them out of transistors.
answered 2 days ago
The PhotonThe Photon
83.5k396194
answered 2 days ago
The PhotonThe Photon
83.5k396194
answered 2 days ago
The PhotonThe Photon
83.5k396194
answered 2 days ago
The PhotonThe Photon
83.5k396194
83.5k396194
Thanks I'll look at these analog multiplexers.
– RenéX
yesterday
By the time I receive them, is there hope in trying to do something testable (even if far from perfect) with the setup in the OP? I'd like to understand why it doesn't work, be it because of signals stability, frequency response, etc.
– RenéX
yesterday
To be honest, your circuit could more or less work. Whether it works and/or works well depends on the nature of the sources (Source1 and Source 2), and the load (where is the output signal going). Since you haven't shared that information, I can't say why it didn't work for you.
– The Photon
yesterday
I wasn't able to try when I asked and I wanted to be sure the circuit was not something stupid. I finally tried and it works perfectly, I didn't expect that. I sure will buy multiplexers though, thanks
– RenéX
yesterday
@RenéX, now you've shared that these are video signals, I will mention that AFAIK there are ICs specifically sold as video multiplexers. I'm not sure exactly what formats they support or whether they will fit your application.
– The Photon
20 hours ago
add a comment |
Thanks I'll look at these analog multiplexers.
– RenéX
yesterday
By the time I receive them, is there hope in trying to do something testable (even if far from perfect) with the setup in the OP? I'd like to understand why it doesn't work, be it because of signals stability, frequency response, etc.
– RenéX
yesterday
To be honest, your circuit could more or less work. Whether it works and/or works well depends on the nature of the sources (Source1 and Source 2), and the load (where is the output signal going). Since you haven't shared that information, I can't say why it didn't work for you.
– The Photon
yesterday
I wasn't able to try when I asked and I wanted to be sure the circuit was not something stupid. I finally tried and it works perfectly, I didn't expect that. I sure will buy multiplexers though, thanks
– RenéX
yesterday
@RenéX, now you've shared that these are video signals, I will mention that AFAIK there are ICs specifically sold as video multiplexers. I'm not sure exactly what formats they support or whether they will fit your application.
– The Photon
20 hours ago
Thanks I'll look at these analog multiplexers.
– RenéX
yesterday
Thanks I'll look at these analog multiplexers.
– RenéX
yesterday
By the time I receive them, is there hope in trying to do something testable (even if far from perfect) with the setup in the OP? I'd like to understand why it doesn't work, be it because of signals stability, frequency response, etc.
– RenéX
yesterday
By the time I receive them, is there hope in trying to do something testable (even if far from perfect) with the setup in the OP? I'd like to understand why it doesn't work, be it because of signals stability, frequency response, etc.
– RenéX
yesterday
To be honest, your circuit could more or less work. Whether it works and/or works well depends on the nature of the sources (Source1 and Source 2), and the load (where is the output signal going). Since you haven't shared that information, I can't say why it didn't work for you.
– The Photon
yesterday
To be honest, your circuit could more or less work. Whether it works and/or works well depends on the nature of the sources (Source1 and Source 2), and the load (where is the output signal going). Since you haven't shared that information, I can't say why it didn't work for you.
– The Photon
yesterday
I wasn't able to try when I asked and I wanted to be sure the circuit was not something stupid. I finally tried and it works perfectly, I didn't expect that. I sure will buy multiplexers though, thanks
– RenéX
yesterday
I wasn't able to try when I asked and I wanted to be sure the circuit was not something stupid. I finally tried and it works perfectly, I didn't expect that. I sure will buy multiplexers though, thanks
– RenéX
yesterday
@RenéX, now you've shared that these are video signals, I will mention that AFAIK there are ICs specifically sold as video multiplexers. I'm not sure exactly what formats they support or whether they will fit your application.
– The Photon
20 hours ago
@RenéX, now you've shared that these are video signals, I will mention that AFAIK there are ICs specifically sold as video multiplexers. I'm not sure exactly what formats they support or whether they will fit your application.
– The Photon
20 hours ago
add a comment |
Part like this will do for analog or digital switching at 3.3V levels.
https://www.analog.com/media/en/technical-documentation/data-sheets/ADG839.pdf
What voltage and current levels are you after?
answered 2 days ago
CrossRoadsCrossRoads
1,2698
add a comment |
Part like this will do for analog or digital switching at 3.3V levels.
https://www.analog.com/media/en/technical-documentation/data-sheets/ADG839.pdf
What voltage and current levels are you after?
answered 2 days ago
CrossRoadsCrossRoads
1,2698
add a comment |
Part like this will do for analog or digital switching at 3.3V levels.
https://www.analog.com/media/en/technical-documentation/data-sheets/ADG839.pdf
What voltage and current levels are you after?
answered 2 days ago
CrossRoadsCrossRoads
1,2698
Part like this will do for analog or digital switching at 3.3V levels.
https://www.analog.com/media/en/technical-documentation/data-sheets/ADG839.pdf
What voltage and current levels are you after?
answered 2 days ago
CrossRoadsCrossRoads
1,2698
answered 2 days ago
CrossRoadsCrossRoads
1,2698
answered 2 days ago
CrossRoadsCrossRoads
1,2698
answered 2 days ago
CrossRoadsCrossRoads
1,2698
1,2698
add a comment |
add a comment |
RenéX is a new contributor. Be nice, and check out our Code of Conduct.
RenéX is a new contributor. Be nice, and check out our Code of Conduct.
RenéX is a new contributor. Be nice, and check out our Code of Conduct.
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What kind of “sources” are these?
– user2233709
2 days ago
They are composite video signals
– RenéX
yesterday