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Light Dimmer Circuits
Triac Dimmer Circuit
The circuit of a simple triac light dimmer shown below can be used for dimming incandescent lamps directly from AC mains. The circuit is very easy to construct and uses very few components. The pot is used for controlling the load power or the intensity of the light. The circuit can be also used for controlling ceiling fan speeds.
PWM LED Dimmer/ Brightness Control by 555 Timer With Video Simulation
How to change the brightness of aLED Whether led lights are dimmable Is it possible to adjust the brightness of LEDs LED is basically a diode, when the forward voltage exceeds 0. 7 volt, it starts to glow, and if the forward voltage is less than 0. 7 volt, it will be in the OFF state. What happens if we are providing a high voltage to the LED so
Light Dimmer Circuit TRIAC dimmer circuitCircuitWorking
This is a modification of the circuit Simple Lamp Dimmer/Fan Regulator previously posted here. The working of the circuit is same as that of the previous, but in addition a snubber circuit consisting of resistor R4 and capacitor C3 is included to improve the performance of the triac T1. A fuse is also included for better safety. I think this is t
PWM lamp dimmer using NE555 timer IC. Complete circuit diagram and working
Simple PWM lamp dimmer using NE555 timer IC. 555 timer IC wired as variable duty cycle astable multivibrator for controlling the brightness of the lamp..
Simple Lamp Dimmer/ Fan Regulator Circuit
A fan regulator circuit which can also be used as a simple lamp dimmer circuit.This fan speed regulator or light dimmer is based on power control using triac..
Touch Dimmer Circuit for Lamps using TT6061 IC
A simple touch dimmer circuit diagram using TT6061 IC, which is a touch control integrated circuit used for Light dimmer circuit and lamp dimmer circuits..
Dimmer Using The Z8 Microcontroller
Introduction The ignition Timing lights in common use range from simple neon to complex units. Neon Timing lights have a drawback that due to their low light output, the user is forced to operate them in subdued lighting. This becomes a safety hazard as one tends to hold the unit close to the Timing mark and to the invisible (or apparently stat
High Power Led Driver With Dimmer
This application note describes the development and use of a Digital Weigh-Scale (DWS) using Zilog`s Z8 Encore! ® Microcontroller This reference design offers a ready-to-use DWS solution easily scalable to measure high-capacity loads. A high-resolution Analog-to-digital Con- verter (ADC) external to the Microcontroller is used to accurately measu
Lm3445 Off-line Triac Dimmer Led Driver Demo Board
Dimmer Switch - Dimmer Switch Working, Installation, Circuits and Explanation..
The concept behind the light dimmer is to control the voltage to the light lamp or any source. Light dimmers regulate the voltage to the source they are connected to. This regulation of voltage increases or decreases the light intensity. Light dimmers first appeared in the market around 1960s. In the beginning light dimmers used adjustable power...
Dome Lamp Dimmers
Street Light Dimmers
triac for this light dimmer circuit
Hi all I made this circuit to be a light dimmer but it did not work. I use BT136 for the SCR and MOC3022 for optocoupler. Can you tell me what is the..
Siemens S566B Electronic Touch Dimmer
The circuit was designed to create a lamp that incorporates the operation of a touch dimmer using S566B integrated circuit manufactured by Siemens. S566B..
120V AC Lamp Dimmer
The full wave phase control circuit below was found in a RCA power circuits book from 1969. The load is placed in series with the AC line and the four dio..
A dimmer is quite unusual in a caravan or on a boat. Here we describe how you can make one. So if you would like to be able to adjust the mood when you re..
12V Halogen Dimmer
A 12V 20W halogen lamp (MR16) and a 4. 2Ah SLA battery for my bike light system. The battery has only limited life at this power rating, so I designed this cheap light dimmer to reduce the battery drain and allow for longer rides at night. Based on a simple 555 timer circuit and Mosfet switch Q1, it works by pulse-width modulating the 12V supply...
12V Speed Controller/Dimmer
This handy circuit can be used as a speed controller for a 12V motor rated up to 5A (continuous) or as a dimmer for a 12V halogen or standard incandescent..
30mA LED Dimmer
If you`ve ever tried dimming a LED with a simple potentiometer, you know that the approach does not work very well. Just as with ordinary diodes, the voltage-current characteristic of LEDs is far from linear. The result depending on the potentiometer setting the LED brightness will hardly change most of the time as the pot is turned and a sudden...
Dimmer With A MOSFET
This circuit shows that dimmers intended for use at mains voltage do not always have to contain a triac. Here, a MOSFET (BUZ41A, 500 V/4.5A) in a diode br..
Halogen Lamp Dimmer With Soft Start
Most dimmers use pulse width modulation (PWM) to control the amount of power that is delivered to the lamp. Those that come bundled with a switch faceplat..
Model Theatre Lighting Dimmer
This circuit is the basis for the dimmers in a model theatre lighting system which uses touch globes as the light source. The circuit is based around a 55..
Touch Sensitive Light Dimmer
With IC SLB0586A from Siemens you can build a simple touch light dimmer circuit that will allow you to adjust the lamp intensity. Together with a TIC206D..
PWM Lamp or Motor Controller
This is another design generated at the request of my father. It is designed to be a dimmer for a 12V reading lamp, but could also be used as a motor speed controller (for a drill). The circuit pulse the voltage seen by the load an the pulse width is variable across the entire range from 0 to 100% (i. e. from off to fully on). The circuit is extrem
Auto Light Time/ Dimmer
Im looking for a Light timer/ dimmer Like something you would find on a Dome light. but dont know where to start
1200 Watt AC Dimmer by Triac Q4006LT
This is Power AC Dimmer 1200 watt size. It is use a triac Q4006LT. Friends ever tour is the foreign land has and to ever reach rest a hotel. On bed head has..
AC Dimmer for Lamp 6.3V
This the circuit AC dimmer low voltage For lamp 6V. While this friends may don`t see the advantage of this circuit. But I thinks first step advantage be something get learn the work of Triac. And have tall safety, because of use AC Low Voltage. Which the work is simple be The UJT Q1 will do the frequency give Triac work or make Lamp the bright. B
AC lights dimmer with triac
This circuit has can to turn down a light bulb arrives at 100W. If Triac there is tall temperature should hold Heat Sink or let off the heat. The Diac be diode that perform be formed encourage or Trigger Diode 2 kinds are way or Bidirectional. The VR1 use for fine decorate turning down fire. Caution this circuit must is in a box closes all the tim
Automatic light dimmer circuit
This is an automatic light dimmer circuit. You do not need to dim the lights by yourself. It is so very convenient, because we use the LDR to detect external..
Linear Light Dimmer by Power Mosfet
When change the value of R2 Intensity of Lamp change to this circuit shows the usability of Mosfet be Variable Resistor. By Q1 use N-Channel Power Mosfet. but what is the number all right follow the size of Load or Lamp there. When change the value of R2 Intensity of Lamp change to this circuit shows the usability of Mosfet be Variable Resistor.
Spot lamp dimmer by LM555 and TIP2955
This circuit is DC Dimmer Circuit. By use IC LM555 be model Astable Multi vibrator. It is can change translate Duty Cycle with fining VR1 and VR2 be..
Light Sensing Circuits
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
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