Hello,
I am the artist, (I'm not an electronist or electrician).
I have a weird problem that I never encountered.
I have a small power supply led driver for a power-led wall light.
I want to attach an indicator led running at 240V to its input ( directly on the 240V wires). You can see the 240V input in the picture, in the left side, as brown and blue wires. I marked with red the location where I soldered this circuit.
Here is my circuit. The resistor burned to black totally the first time I mount it and it took the led with it, but it didn't had the diode. Now with the rectifying diode included, is still fumigating and get extremely hot, but I don't let it to burn totally like it's predecessor.
Here is the weird part: You see this extension cord? I keep it on the table, and IN IT I plug in the cord for this power supply with it's burning indicator light at 240V. Do you see that green led already working inside the extension cord? It is the same circuit I used as well. And it never burned out. But this one I am using here, NEAR the power supply, is always burning. VERY strange, right? If this power supply is kicking back and burning my led and its resistor, immediately at it's input, then it should burn the led inside the extension cord, correct? This is the strange part I am very intrigued. Or maybe I am using the wrong diode? I didnt used a 1N4007 (for 1000V) like in the circuit, but a "smaller" one.
I believe there are some sort of spikes coming back from the power supply, especially from that big violet filter capacitor.
- Do you think I should put another circuit?
I want it to be on the 240V side because if something will broke, at least I know for sure is getting 240 on its input.
I was thinking to put it in the output of this power supply, on the DC side with 72V@120mA. But I am very intrigued of this failure that I encounter for the first time, or at least I am aware of it and I can properly formulate it. Very weird.
This is not my first indicator at 240VAC. I put like tens of these indicators along the time. Mostly inside extension cords like you see the one on my table. And in a few power supplies but in their output usually. I dont recall putting in the input as I am doing right now.
I think is a fascinating problem. I really hope this is a common problem that you guys are aware of it. For me is the first time.
Thank you very much, and I really am curious what you will tell me.
I am the artist, (I'm not an electronist or electrician).
I have a weird problem that I never encountered.
I have a small power supply led driver for a power-led wall light.
I want to attach an indicator led running at 240V to its input ( directly on the 240V wires). You can see the 240V input in the picture, in the left side, as brown and blue wires. I marked with red the location where I soldered this circuit.
Here is my circuit. The resistor burned to black totally the first time I mount it and it took the led with it, but it didn't had the diode. Now with the rectifying diode included, is still fumigating and get extremely hot, but I don't let it to burn totally like it's predecessor.
Here is the weird part: You see this extension cord? I keep it on the table, and IN IT I plug in the cord for this power supply with it's burning indicator light at 240V. Do you see that green led already working inside the extension cord? It is the same circuit I used as well. And it never burned out. But this one I am using here, NEAR the power supply, is always burning. VERY strange, right? If this power supply is kicking back and burning my led and its resistor, immediately at it's input, then it should burn the led inside the extension cord, correct? This is the strange part I am very intrigued. Or maybe I am using the wrong diode? I didnt used a 1N4007 (for 1000V) like in the circuit, but a "smaller" one.
I believe there are some sort of spikes coming back from the power supply, especially from that big violet filter capacitor.
- Do you think I should put another circuit?
I want it to be on the 240V side because if something will broke, at least I know for sure is getting 240 on its input.
I was thinking to put it in the output of this power supply, on the DC side with 72V@120mA. But I am very intrigued of this failure that I encounter for the first time, or at least I am aware of it and I can properly formulate it. Very weird.
This is not my first indicator at 240VAC. I put like tens of these indicators along the time. Mostly inside extension cords like you see the one on my table. And in a few power supplies but in their output usually. I dont recall putting in the input as I am doing right now.
I think is a fascinating problem. I really hope this is a common problem that you guys are aware of it. For me is the first time.
Thank you very much, and I really am curious what you will tell me.