Questions tagged [dimmer]
The dimmer tag has no usage guidance.
1
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1answer
43 views
Decreasing the surge power of the AC loads
I have a pure sine wave inverter 12v to 220v AC, its continues output power is 600VA and the surge power is 1130VA, I want to running my 200W fridge, but unfortunately my fridge surge power is a bit ...
-1
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0answers
59 views
Light Dimmer Causes Internet Drop [migrated]
I've bought a standard light dimmer and a dimmable led lamb. Dimming works fine. However, when I dim the lights my ADSL connection drops. DSL light on my modem turns off and can't connect back again ...
0
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1answer
56 views
Potentiometer is Heating [closed]
I have this light dimmer circuit, when I plug it into the AC, the dimmer works fine but I noticed that the heat in potentiometer is increasing, is there any workaround to fix this problem?
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1answer
31 views
LED Dimmable 2 of the 8 turn off when others are dim [closed]
So I just had Integrated LED Recessed Retrofit Ceiling Light Fixtures installed on a Lutron Toggler 150-watt Double Pole 3-way White Toggle Indoor Dimmer (rated for LED lights).
When the dimmer is ...
0
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2answers
44 views
how to convert a PWM AC dimmer circuit from normally-closed to a normally-open one?
Hi,
As you see in schematic, the circuit is a normally-closed AC dimmer. Therefore when the connection between microcontroller - which produce pwm - and mosfet get halted, the lamp will be always on ...
0
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1answer
35 views
Why does this dimmer switch have reduced wattage capability for LED / CFL bulbs?
The Lutron "Maestro C•L" dimmer has different wattage ratings depending on the type(s) of bulbs being controlled. Its an electronic dimmer.
Specifically, when 100% incandescent or halogen it can ...
-2
votes
1answer
28 views
Convert a 100-277V dimmer to 1-10V [closed]
I'm trying to use the following dimmer:
https://www.smarthome.com/switchlinc-dimmer-insteon-2477dh-remote-control-dimmer-dual-band-high-wattage-white.html
with these lights
https://www.eledlights....
0
votes
1answer
43 views
TRIAC not turning off correctly
I am using this circuit with a BTA16 TRIAC:
The load is a 110/12 V transformer. I am getting spikes in the output.
Note: CH1 is the secondary of the transformer (load), CH2 is the MOC3021 input.
...
0
votes
2answers
69 views
How to dim my dc push button led switch that is too bright?
Attached is a screenshot of my button and the dimmer I found, it’s getting a 12V source. I figured using wiring the pwm dimmer like the one shown will work. Please let me know your suggestions on if ...
0
votes
1answer
136 views
Dimmer with zero-crossing circuit and TRIAC
I want to make a dimmer to control a huge power resistance of 700W. For this, I made a circuit that detected when the wave reaches zero (the circuit above the figure) and another that controls the ...
0
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2answers
48 views
What would I use to regulate raise/lower temperature in an AC 40 watt device's heating element? [closed]
It's for a resin burner--frankincense etc--that doesn't have a temperature regulator so it burns too hot. I don't need to know an actual temperature, just to be able to raise/lower the temp'. Thanks.
0
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1answer
127 views
COB LED Dimming via Poentiometer?
I want to create a dimmer for high power LED light's i'm building for video work. I'm using CREE CXB3590 chips, which have run at 36V with a forward current of 3.6A. I am powering these through a 150W ...
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votes
1answer
57 views
LED dimmer between current supply and drivers [closed]
I want to build a bathroom mirror frame with integrated LED spot lights. Current comes out of the wall, there are already two on/off switches which control that single outlet. That is why I „believe“ ...
0
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0answers
69 views
Help building triac dimmer switch circuit
I'm trying to build a dimmer switch circuit. I'm terrible at reading circuit diagrams and then bread boarding them. Here is a pic of the diagram and two pics of my circuit. The light comes on full ...
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2answers
309 views
Can I use dimmer voltage regulator for single phase multi speed AC motor?
I have a swamp cooler motor which is single phase 3 speed motor, 1/7 HP i.e. 106 watts. I wish to reduce its speed (rpm) by 50%. Can I use this dimmer circuit to do so? This dimmer regulator is rated ...
0
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1answer
81 views
triac dimmer switch failure mode - flickering
Background
About the switch
In the UK dimmer switches with modules that look like this are quite popular: https://ssli.ebayimg.com/images/g/7f0AAOSwMvtZOrsC/s-l640.jpg
It's a mains light dimmer, ...
0
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2answers
50 views
Dimmer buzzing, lights flickering [closed]
Got an issue with my lights and a dimmer. I got a room with 4 lights in it (6W LED panel lights) and a 60-600W dimmer. Somewhy, the lights from time to time flicker and the dimmer is buzzing all the ...
0
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2answers
59 views
Dimmer switches and analogue voltmeters
I want to make a steampunk type table lamp. I want to use a dimmer switch and an old fashioned analogue AC voltmeter to display the "voltage" as a feature/gimmick.
This displayed voltage doesn't need ...
0
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2answers
122 views
Debugging a dimmer circuit (TT6061A) [closed]
I've got a touch sensitive table lamp that dims to three different stages (off, low intensity, mid intensity, full intensity). It has stopped working like that and now just being powered to the mains ...
1
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4answers
326 views
Why do lights get brighter when I turn on the hair dryer?
Intuitively, the hair dryer sucks power out of the wires, causing a voltage drop, causing the lights to dim. But the opposite happens: the lights get brighter. These are LED bulbs. It is the ...
0
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1answer
66 views
Detect if the load is present on this circuit
Is there a way to detect if the load is conected on the circuit above?
(The other load should be connected to the F Pad, sorry for the mistake).
0
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1answer
49 views
How does a (halogen) wound transformer dimmer work?
I'm replacing a broken halogen dimmer and I noticed that it has inside a wound transformer, but it is connected only to two leads: "input" and dimmed "output".
It also has some more electronic ...
1
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1answer
68 views
Why triac output goes higher than line 230-240 voltage in AC dimmer circuit?
I am using AC dimmer circuit using arduino. circuit is working normally but the only problem is about voltage. as the dimmer circuit varies dimming,the output voltage also increases and decrease. Line ...
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0answers
244 views
How to determine resistor and capacitor values in diac-triac dimmer circuit?
Background
I'm trying to design a simple dimmer based on this circuit (source, PDF):
Questions:
How do I determine the appropriate R1, R2 resistor (and capacitor) values?
What is the relationship ...
1
vote
1answer
66 views
Flickering 230VAC Halogen dimmer
After using Stackexchange for several years now for solving all my Python, LaTeX, math, electronics, engineering and life questions, I have finally come up with a problem I cannot find an answer to. I ...
0
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1answer
85 views
Is this dimmer compatible a DC 12v power supply? [duplicate]
This power supply is used for LED strip lights I recently purchased. I want to know if the dimmer below can be used with the power supply. The PS is AC 100-240v (IN) to DC 12v (OUT), while the dimmer ...
0
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3answers
119 views
How to control the brightness of an AC light bulb with the instant level of noise nearby
The device I want to make is simple to describe: a big red lightbulb, connected to the AC 110 / 220 V, stays dark when it's quiet in the room, starts lighting up somewhat if there's a moderate level ...
0
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2answers
126 views
Replacement Triac
I have a simple dimmer module with a busted Triac MAC97A6. I want to replace that component so that the module will work again but stores near my area don't have that specific component. One store ...
0
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2answers
483 views
Triac not getting switched by optoisolator
I made this dimmer circuit:
simulate this circuit – Schematic created using CircuitLab
And it does not work (no light). I have looked up other circuits that serve the same purpose and they ...
0
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1answer
146 views
PWM dimmed led floor lamp: can it cause eye strain? [closed]
I have a floor lamp (standing lamp which spreads light via the ceiling). It uses LEDs and it's dimmable. When I capture the light with a camera I can clearly see oscillations.
It is known that PWM-...
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1answer
93 views
How to make my automatic night light circuit dimming?
I am working on a project named as automatic night light.The idea is simple; LEDs are on when there is dark then LEDs turn off when the circuit detects light.
However I have constructed the circuit I ...
0
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1answer
148 views
dimmers - is the problem solved with pure sine wave
I've been interested in dimmer technologies these days, and spent some time in reading about this topic on the web.
According to what I understand, the problem with usual dimmers is that with ...
1
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1answer
520 views
Best Lamp Dimming Circuit? [closed]
What's the best way to dim a lamp, and why? Also, which method is typically used in most typical residential dimmers? I originally thought it was as simple as wiring a potentiometer between the source ...
0
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1answer
471 views
Replace a trimmer potentiometer with a thumbwheel (rotary) potentiometer [closed]
I am trying to make an LED strip dimmer circuit using LM2596 Buck converter, but the trimmer pot makes it difficult to change the brightness every time. Is there any way to replace the trimmer pot ...
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3answers
398 views
Help reverse engineering PWM Dimmer Flicker-less mod
I've been playing with LEDs for video work for a while. I made some LED panels using strips and off the shelve controllers which always worked nicely while on full brightness. Everytime I dim then ...
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1answer
151 views
0-10 V AC dimmer [closed]
This is a 0-10V DC to AC dimmer. The problem is a big jump when supply from 4V to 5V DC to the input so the output voltage comes from 60V to 130V AC. This is not good, if anyone has any idea how to ...
0
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3answers
209 views
How should I modify this back to back MOSFET AC mains circuit?
I have a WiFi enabled AC mains light dimmer/switch that uses a back to back MOSFET design. The device sits in series with the load (lightbulb) and therefore does not have its own return/neutral ...
1
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1answer
52 views
Low-power halogen lamp dimmer
I want to connect a set of low power halogen lamps to a dimmer. This would be used to illuminate plants who are then monitored using a hyperspectral camera.
I was wondering whether any spurious ...
1
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2answers
802 views
How to use SCR to control the power of a heater
I would like to point out that I am not an expert (as it is perceived by the question) in the use of scr, diac, and triac and that this question is more for academic purposes than use in real life. ...
0
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0answers
264 views
Dimmer circuit Opto-Triac switch
I have this simple Diac-Triac dimmer circuit that used a 470K potentiometer to control brightness of a 24W lamp. Now that I've replaced the pot with two fixed value resistors, I would like to control ...
0
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1answer
331 views
Why is this digital potentiometer working?
I've been working on a circuit to dim a Shop Light that according the manufacturer is 0-10V dimmable.
Built into the light is an LED power supply that provides two wires, a purple DIM+ and grey DIM-. ...
0
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1answer
56 views
Light fixture dimming, LED turn of
I'm trying to dim a light fixture with the DALI protocol. It functions quite fine but when the dimming gets low two thirds of the LED:s turn of.
Why is this?
Is it because the voltage forward gets ...
0
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1answer
181 views
Help me understand and fix this dimmer circuit
I have a table lamp which has a busted dimmer control. When I bought it the dimmer used to kinda work but then after a few days it worked only when the rotary knob was turned all the way high. After a ...
0
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2answers
460 views
Two or more Diac Triac dimmers in parallel
I wanted to know whether connecting two or more simple diac-triac ac lamp dimmers in parallel with the same load cause any problems?
I do not want to connect them in series, just parallel will be ...
1
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1answer
443 views
Replace potentiometer with resistor
Can I replace the potentiometer in this AC dimmer circuit with a fixed resistor so that I can get a permanent dim setting?. If yes then how.
Components in this circuit are
The parts used are
WH149-...
2
votes
3answers
992 views
What mechanism controls a ceiling fan speed?
Are all ceiling fans AC induction motors?
Since any ceiling fan can accept any off-the-shelf fan dimmer switch and any wireless remote unit that fits in the base, that means they've all got something ...
1
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3answers
870 views
0-10V Digital Rheostat for LED Dimmer?
I have an LED light with a power supply that follows the ISO 60929 0-10V standard for dimming. The manufacturer says "the power supply is current sourcing, and is roughly 0.5mA."
The following ...
0
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1answer
112 views
Modify 120v lamp dimmer for LED bulb
I have a "stick lamp" that has a pot/twistable dimmer with photocell. It works fine with a 24w Sylvania CFL bulb but won't light this 22w dimmable LED bulb (http://www.ikea.com/us/en/catalog/products/...
0
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1answer
76 views
regular wall switch on off led dimmer
Is it possible to make a simple dimmer thats operated just with the flick of the regular wall switch on and off? just like what Philips sceneswitch bulb does?
My requirement is 100%, 50% and 10% ...
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1answer
57 views
How do I wire this inline rotary lamp dimmer [closed]
I bought this to add dimming abilities to my table lamp... But after opening it up am not too sure where to solder the wires.
