AC Light Dimmer Module 1 Channel 3.3V/5V Logic Pwm 400V 8A AC 50/60hz 28.5x57mm

Description

AC Light Dimmer Module 1 Channel 3.3V/5V Logic Pwm 400V 8A AC 50/60hz 28.5x57mm
Product Overview:
The AC Dimmer is designed to control the alternating current voltage, which can transfer current 400V (8A). In most cases, Dimmer is used to turning power ON/OFF for lamps or heating elements, it can also be used in fans, pumps, air cleaners, e.t.c.
Lately, Dimmer has become an often used decision for the smart home systems. For example, when you need to smoothly change the light brightness. The lamp is slowly turning ON or OFF, creating a comfortable atmosphere. Dimmer works most effective with filament lamps. It’s less stable with low brightness LED lamps, but with moderate and high brightness it will perform a solid job. Note that luminescent lamps (gas discharge lamps) do not support dimming.
Power part of dimmer is isolated from the control part, to exclude the possibility of high current disruption to a microcontroller.
The logical level is tolerant to 5V and 3.3V, therefore it can be connected to the microcontroller with 5V and 3.3V level logic.
In Arduino, the dimmer is controlled with RBDdimmer.h library, which uses external interrupts and process time interrupts. It simplifies the code writing and gives more processing time for main code. Which is why you can control multiple Dimmers from one microcontroller.
You can download RBDDimmer.h library and a few examples in «Documents» or on GitHub. We are constantly updating our library, so we recommend to check for the website updates or subscribe to our newsletter.
Dimmer is connected to Arduino controllers via two digital pins. First (Zero) to control the passing of Phase Null of AC, which is used to initiate the interrupt signal. Second (DIM/PSM) to control (dim) current.
Note that Zero requires connection to designated microcontroller pins (which are different depending on the model of Uno, Nano, Leonardo, Mega), since it tied to microcontroller interrupts.
Theory:
Dimming can be achieved by Pulse Skip Modulation:
Method 1 — One or more cycles (sine wave signal) are transferred to the load while following one or several cycles are blocked.
Method 2 — Partial transferrence of each sine wave to the load.
Method 3 — Generation of modulated full sine signal of different frequency up to few hundred Hertz. This method requires specialized powerful AC generators with different modulation.
Methods 1 and 2 are the easiest to execute with the help of a Dimmer and program code: in both cases, there is a need of circuit that detects the zero crossing and can control a TRIAC.
Description:
Brand Name: RobotDyn
Condition: New
Style: Modern
Type: AC light dimmer
Shape: Rectangular
Color: As photos
Power: 8A 400V
AC frequency: 50/60 Hz
TRIAC: BTA16 — 600B
Isolation: Optocoupler
Logic level: 3.3V/5V
Zero point: Logic level
Modulation (DIM/PSM): logic level ON/OFF TRIAC
Signal current: >10mA
Size: 28.5mm(1.12")x57mm(2.24")
Environment: For indoor and outdoor use, Operating temperatures: −20C to 80C, Operating humidity: Dry environment only
Application: Electronics
ROHS3: Compliant
Package Includes:
1 x Dimmer
Notice
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Due to different producing batches, there may be a bit deviation for items. Please make sure you do not mind before you bid.
Colors on your computer monitor may differ slightly from actual product colors depending on your monitor settings.
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