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bertus
Moderator
Hello,
What kind of lamp are you trying to flash?
That way we can search for a compliant schematic.
On 110 Volts, xenon strobes are often used:
https://www.google.com/search?q=110...ent=img&ei=iIKuYcX1Cc7qsAe5n6mACQ&safe=images
Bertus
What kind of lamp are you trying to flash?
That way we can search for a compliant schematic.
On 110 Volts, xenon strobes are often used:
https://www.google.com/search?q=110...ent=img&ei=iIKuYcX1Cc7qsAe5n6mACQ&safe=images
Bertus
Thank you. I'm trying to use this LED light currently selling at Costco. I am hoping to make a circuit that functions like this device which is out of stock.
I've seen some circuits here but none that would drive a 110V/80W load.
I've seen some circuits here but none that would drive a 110V/80W load.
Understood. My application is in the attic to humanely drive away squirrels and rats. I intend to place it on a smart plug circuit to avoid human exposure to it.
The ones abundantly available are 12V for automobile applications of a small number of LEDs. I need to use this 80W 8000 lumen LED light fixture for the large area of my attic. Further, I just want to keep it simple and insert it in the light circuit without having to modify the light fixture.Make a supply that converts your desired 110VAC outlet to the voltage the strobe flashers you found abundant work at.
Thank you for recommendation to provide easy access for the low voltage power supply. As I've indicated earlier, that is not the issue for me since the light fixture I am trying to use is 110V based. The low voltage strobe flashers only drive low voltage and low wattage load which cannot drive this load. Am I making sense?
Use a 12 V flasher circuit and a solid state relay (SSR) with a low voltage control input to turn on the mains powered flashlights.
Here's an example of such an SSR.
The input can be controlled by a DC signal between 3 V ... 32 V, 12 V would be perfect.
The output can control mains lights (Ac 110 V, 10 A or more, depending on the model.
Of course this is a Chinese knock-off, your local hardware store may have higher quality products on offer.
Here's an example of such an SSR.
The input can be controlled by a DC signal between 3 V ... 32 V, 12 V would be perfect.
The output can control mains lights (Ac 110 V, 10 A or more, depending on the model.
Of course this is a Chinese knock-off, your local hardware store may have higher quality products on offer.
Thank you. This could probably serve in a circuit like the attached I found at homemade-circuits.com
ebay has many oscillator / timer modules with on-board power relays.
5 Vdc or 12 Vdc wall wart >> on/off switch / controller >> oscillator / timer board >> AC mains and light socket
https://www.ebay.com/itm/384497305733?hash=item5985d34885:g:bB8AAOSw7cxZo44m
https://www.ebay.com/itm/144282992586?hash=item2197efbfca:g:7XoAAOSwz19gQJIN
ak
5 Vdc or 12 Vdc wall wart >> on/off switch / controller >> oscillator / timer board >> AC mains and light socket
https://www.ebay.com/itm/384497305733?hash=item5985d34885:g:bB8AAOSw7cxZo44m
https://www.ebay.com/itm/144282992586?hash=item2197efbfca:g:7XoAAOSwz19gQJIN
ak
Last edited:
Thank you. That brings me very close to a solution. I'll try it out.
I recommend considering a solid state relay instead of an electromechanical relay. While admitttedly more expensive, a solid state relay is much more suitable for frequent switching (flashing) than an electromechanical relay.
For example the MSR relay, a typical representative of its kind used e.g. in household appliances is rated at
- 6 operation per minute under load
- 50000 operation lifetime at 2 A load current.
If you were to use this relay at 6 operations per minute and 2 A current, the lifetime will be 8333 minutes or roughly 6 days only.
The solid state relay I linked on the contrary is rated at 21 × 106 operations and will, under the same conditions, last 2430 hours.
Of course, these are theoretical values and either of the relays may fail sooner or later than that. Also you will probably not flash 6 times per minute. Lifetime will increase with lower strobe rate.
Then there is the cost. The SSR alone is about 4 to 5 times as expensive as one of the neat modules @AnalogKid has linked to. If it weren't for the electronic waste that is created, you may get away with considerably less cost by using one of these modules and, if need be, replace the whole module.
For example the MSR relay, a typical representative of its kind used e.g. in household appliances is rated at
- 6 operation per minute under load
- 50000 operation lifetime at 2 A load current.
If you were to use this relay at 6 operations per minute and 2 A current, the lifetime will be 8333 minutes or roughly 6 days only.
The solid state relay I linked on the contrary is rated at 21 × 106 operations and will, under the same conditions, last 2430 hours.
Of course, these are theoretical values and either of the relays may fail sooner or later than that. Also you will probably not flash 6 times per minute. Lifetime will increase with lower strobe rate.
Then there is the cost. The SSR alone is about 4 to 5 times as expensive as one of the neat modules @AnalogKid has linked to. If it weren't for the electronic waste
that is created, you may get away with considerably less cost by using one of these modules and, if need be, replace the whole module.
All the strobes they made in the 70's were 12v driven, the bulbs cost too much and the circuits overheated and started fires.
Use a voltage divider circuit and add some fans to keep the case cooler.....
Use a voltage divider circuit and add some fans to keep the case cooler.....
I wonder what country you are talking about. Here in the states, in the 70's, professional/entertainment/commercial strobes all ran off 110 or 220 V. Same for industrial versions. Many hobby circuits ran off 12 V, but they were using the same tubes as camera-mounted (hot-shoe) flashes. These were much lower energy, and posed no serious danger. Pro flashes had large power supplies with very large capacitor banks, and often were fan cooled.
ak
This is nice however I'm hoping to eliminate the low voltage DC supply for an adapter like the one attached which is no longer available here (and I can't find it anywhere else) that plugs into a 110V supply and delivers strobe function on the 110V outlet.
AC mains supply >> on/off switch / controller >> oscillator / timer board >> AC mains and light socket
