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Relays vs. thyristors: What is best for swiching 230 V lights on and off rapidly (~ 5 Hz)?
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I am building my own disco/party lights. 230 V/60 W bulbs, and ideally I would like to switch them on and off at 5Â Hz.
I was planning on a simple setup with an Arduino controlling the lights. My original plan was to use relays, more specifically SRD-05VDC-SL_C (datasheet).
It says "Max electrical ON/OFF switching" is 30/minute, which is too slow for what I had in mind. This seems like a common theme with relays, since after all there is a mechanical switch inside.
After some research triacs/gate turn-off thyristors seems like a possible alternative. I had a look at TIC226m (datasheet), but I could not find any max switching rate.
Are these usable for my setup? Any other tips and suggestions are greatly appreciated.
switches relay triac thyristor
edited 14 mins ago
JRE
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asked 3 hours ago
Aksel
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up vote
4
down vote
favorite
I am building my own disco/party lights. 230 V/60 W bulbs, and ideally I would like to switch them on and off at 5Â Hz.
I was planning on a simple setup with an Arduino controlling the lights. My original plan was to use relays, more specifically SRD-05VDC-SL_C (datasheet).
It says "Max electrical ON/OFF switching" is 30/minute, which is too slow for what I had in mind. This seems like a common theme with relays, since after all there is a mechanical switch inside.
After some research triacs/gate turn-off thyristors seems like a possible alternative. I had a look at TIC226m (datasheet), but I could not find any max switching rate.
Are these usable for my setup? Any other tips and suggestions are greatly appreciated.
switches relay triac thyristor
edited 14 mins ago
JRE
19.2k43664
asked 3 hours ago
Aksel
211
New contributor
Aksel is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Thyristors are good for switching on and off at 50/60 Hz so 5 Hz shouldn't be a problem.
– Andy aka
3 hours ago
add a comment |Â
up vote
4
down vote
favorite
up vote
4
down vote
favorite
I am building my own disco/party lights. 230 V/60 W bulbs, and ideally I would like to switch them on and off at 5Â Hz.
I was planning on a simple setup with an Arduino controlling the lights. My original plan was to use relays, more specifically SRD-05VDC-SL_C (datasheet).
It says "Max electrical ON/OFF switching" is 30/minute, which is too slow for what I had in mind. This seems like a common theme with relays, since after all there is a mechanical switch inside.
After some research triacs/gate turn-off thyristors seems like a possible alternative. I had a look at TIC226m (datasheet), but I could not find any max switching rate.
Are these usable for my setup? Any other tips and suggestions are greatly appreciated.
switches relay triac thyristor
edited 14 mins ago
JRE
19.2k43664
asked 3 hours ago
Aksel
211
New contributor
Aksel is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I am building my own disco/party lights. 230 V/60 W bulbs, and ideally I would like to switch them on and off at 5Â Hz.
I was planning on a simple setup with an Arduino controlling the lights. My original plan was to use relays, more specifically SRD-05VDC-SL_C (datasheet).
It says "Max electrical ON/OFF switching" is 30/minute, which is too slow for what I had in mind. This seems like a common theme with relays, since after all there is a mechanical switch inside.
After some research triacs/gate turn-off thyristors seems like a possible alternative. I had a look at TIC226m (datasheet), but I could not find any max switching rate.
Are these usable for my setup? Any other tips and suggestions are greatly appreciated.
switches relay triac thyristor
switches relay triac thyristor
edited 14 mins ago
JRE
19.2k43664
asked 3 hours ago
Aksel
211
New contributor
Aksel is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 14 mins ago
JRE
19.2k43664
asked 3 hours ago
Aksel
211
New contributor
Aksel is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 14 mins ago
JRE
19.2k43664
edited 14 mins ago
JRE
19.2k43664
edited 14 mins ago
JRE
19.2k43664
19.2k43664
asked 3 hours ago
Aksel
211
New contributor
Aksel is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 hours ago
Aksel
211
asked 3 hours ago
Aksel
211
211
New contributor
Aksel is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Aksel is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Aksel is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Thyristors are good for switching on and off at 50/60 Hz so 5 Hz shouldn't be a problem.
– Andy aka
3 hours ago
add a comment |Â
Thyristors are good for switching on and off at 50/60 Hz so 5 Hz shouldn't be a problem.
– Andy aka
3 hours ago
Thyristors are good for switching on and off at 50/60 Hz so 5 Hz shouldn't be a problem.
– Andy aka
3 hours ago
Thyristors are good for switching on and off at 50/60 Hz so 5 Hz shouldn't be a problem.
– Andy aka
3 hours ago
add a comment |Â
2 Answers
2
active
oldest
votes
up vote
9
down vote
Mechanical relays won't last long if forced to switch at 5 Hz, but solid state devices (thyristors, triacs or transistors) are perfect for your task.
Instead of coming up with your own thyristor/transistor circuit, I suggest that you use a solid state relay. It's easier and safer. They consist of an optocoupler (for electrical isolation of the logic level input), a driver circuit and some kind of solid state switching element, all integrated into a single off-the-shelf package.
answered 3 hours ago
jms
6,0401039
1
And they are about $2 per piece. Totally worth it.
– Janka
3 hours ago
add a comment |Â
up vote
5
down vote
Your best bet is probably to use SSRs (solid state relays) which include drive and isolation circuitry in one package. They also include a thyristor and usually a heat spreader to interface with a heat sink, if necessary, that is electrically isolated.
The mechanical relays are unsuitable, they will be noisy and wear out very quickly.
Keep in mind that SSRs will typically give complete cycles, so at 5Hz you may see undesirable beating between that and the mains frequency.
answered 3 hours ago
Spehro Pefhany
196k4139389
add a comment |Â
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
9
down vote
Mechanical relays won't last long if forced to switch at 5 Hz, but solid state devices (thyristors, triacs or transistors) are perfect for your task.
Instead of coming up with your own thyristor/transistor circuit, I suggest that you use a solid state relay. It's easier and safer. They consist of an optocoupler (for electrical isolation of the logic level input), a driver circuit and some kind of solid state switching element, all integrated into a single off-the-shelf package.
answered 3 hours ago
jms
6,0401039
1
And they are about $2 per piece. Totally worth it.
– Janka
3 hours ago
add a comment |Â
up vote
9
down vote
Mechanical relays won't last long if forced to switch at 5 Hz, but solid state devices (thyristors, triacs or transistors) are perfect for your task.
Instead of coming up with your own thyristor/transistor circuit, I suggest that you use a solid state relay. It's easier and safer. They consist of an optocoupler (for electrical isolation of the logic level input), a driver circuit and some kind of solid state switching element, all integrated into a single off-the-shelf package.
answered 3 hours ago
jms
6,0401039
1
And they are about $2 per piece. Totally worth it.
– Janka
3 hours ago
add a comment |Â
up vote
9
down vote
up vote
9
down vote
Mechanical relays won't last long if forced to switch at 5 Hz, but solid state devices (thyristors, triacs or transistors) are perfect for your task.
Instead of coming up with your own thyristor/transistor circuit, I suggest that you use a solid state relay. It's easier and safer. They consist of an optocoupler (for electrical isolation of the logic level input), a driver circuit and some kind of solid state switching element, all integrated into a single off-the-shelf package.
answered 3 hours ago
jms
6,0401039
Mechanical relays won't last long if forced to switch at 5 Hz, but solid state devices (thyristors, triacs or transistors) are perfect for your task.
Instead of coming up with your own thyristor/transistor circuit, I suggest that you use a solid state relay. It's easier and safer. They consist of an optocoupler (for electrical isolation of the logic level input), a driver circuit and some kind of solid state switching element, all integrated into a single off-the-shelf package.
answered 3 hours ago
jms
6,0401039
answered 3 hours ago
jms
6,0401039
answered 3 hours ago
jms
6,0401039
answered 3 hours ago
jms
6,0401039
6,0401039
1
And they are about $2 per piece. Totally worth it.
– Janka
3 hours ago
add a comment |Â
1
And they are about $2 per piece. Totally worth it.
– Janka
3 hours ago
1
1
And they are about $2 per piece. Totally worth it.
– Janka
3 hours ago
And they are about $2 per piece. Totally worth it.
– Janka
3 hours ago
add a comment |Â
up vote
5
down vote
Your best bet is probably to use SSRs (solid state relays) which include drive and isolation circuitry in one package. They also include a thyristor and usually a heat spreader to interface with a heat sink, if necessary, that is electrically isolated.
The mechanical relays are unsuitable, they will be noisy and wear out very quickly.
Keep in mind that SSRs will typically give complete cycles, so at 5Hz you may see undesirable beating between that and the mains frequency.
answered 3 hours ago
Spehro Pefhany
196k4139389
add a comment |Â
up vote
5
down vote
Your best bet is probably to use SSRs (solid state relays) which include drive and isolation circuitry in one package. They also include a thyristor and usually a heat spreader to interface with a heat sink, if necessary, that is electrically isolated.
The mechanical relays are unsuitable, they will be noisy and wear out very quickly.
Keep in mind that SSRs will typically give complete cycles, so at 5Hz you may see undesirable beating between that and the mains frequency.
answered 3 hours ago
Spehro Pefhany
196k4139389
add a comment |Â
up vote
5
down vote
up vote
5
down vote
Your best bet is probably to use SSRs (solid state relays) which include drive and isolation circuitry in one package. They also include a thyristor and usually a heat spreader to interface with a heat sink, if necessary, that is electrically isolated.
The mechanical relays are unsuitable, they will be noisy and wear out very quickly.
Keep in mind that SSRs will typically give complete cycles, so at 5Hz you may see undesirable beating between that and the mains frequency.
answered 3 hours ago
Spehro Pefhany
196k4139389
Your best bet is probably to use SSRs (solid state relays) which include drive and isolation circuitry in one package. They also include a thyristor and usually a heat spreader to interface with a heat sink, if necessary, that is electrically isolated.
The mechanical relays are unsuitable, they will be noisy and wear out very quickly.
Keep in mind that SSRs will typically give complete cycles, so at 5Hz you may see undesirable beating between that and the mains frequency.
answered 3 hours ago
Spehro Pefhany
196k4139389
answered 3 hours ago
Spehro Pefhany
196k4139389
answered 3 hours ago
Spehro Pefhany
196k4139389
answered 3 hours ago
Spehro Pefhany
196k4139389
196k4139389
add a comment |Â
add a comment |Â
Aksel is a new contributor. Be nice, and check out our Code of Conduct.
Aksel is a new contributor. Be nice, and check out our Code of Conduct.
Aksel is a new contributor. Be nice, and check out our Code of Conduct.
Aksel is a new contributor. Be nice, and check out our Code of Conduct.
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Thyristors are good for switching on and off at 50/60 Hz so 5 Hz shouldn't be a problem.
– Andy aka
3 hours ago