Thiết Bị Điều Khiển Độ Sáng Đèn 1 Kênh Pwm
₫ 265.000
Sản phẩm Thiết Bị Điều Khiển Độ Sáng Đèn 1 Kênh Pwm đang được mở bán với mức giá siêu tốt khi mua online, giao hàng online trên toàn quốc với chi phí tiết kiệm nhất,0 đã được bán ra kể từ lúc chào bán lần cuối cùng.Trên đây là số liệu về sản phẩm chúng tôi thống kê và gửi đến bạn, hi vọng với những gợi ý ở trên giúp bạn mua sắm tốt hơn tại Pricespy Việt Nam
We all know what an AC dimmer is; for those who don’t, it’s a kind of a circuit which can control the amount of AC voltage to be given to any device. You can see them in a fan regulator or a light dimmer switch.
It's good for a smart home if you need to turn the lighting on and off slowly. The lamp is slow damped, this creates a pleasant effect.Also can control AC/DC motor, electric pump, tools.
Pulse Skip ulation:
Another way of doing this is by Pulse Skip ulation. With PSM, one or more full cycles (sinuswaves) are transferred to the load and then one or more cycles are not. Though effective, it is not a good way to dim lights as there is a chance for flickering. Though it might be tempting, in PSM one should always allow a full sinuswave to be passed to the load, not a half sinus as in that case the load will be fed factually from DC which is not a good thing for most AC loads.
The difference between leading edge cutting and PSM is mainly in the software: in both cases one will need a circuit that detects the zero crossing and that can control a triac.
A circuit that can do this is easy to build: The zero crossing is directly derived from the rectified mains AC lines – via an optocoupler of course- and gives a signal every time the wave goes through zero. Because the sine wave first goes through double phased rectification, the zero-crossing signal is given regardless whether the sinus wave goes up through zero or down through zero. This signal then can be used to trigger an interrupt in the Arduino.
Color:as shown
Material: plastic + metal
Package Contents: 1*AC Light Dimmer uleOnly the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1
It's good for a smart home if you need to turn the lighting on and off slowly. The lamp is slow damped, this creates a pleasant effect.Also can control AC/DC motor, electric pump, tools.
Pulse Skip ulation:
Another way of doing this is by Pulse Skip ulation. With PSM, one or more full cycles (sinuswaves) are transferred to the load and then one or more cycles are not. Though effective, it is not a good way to dim lights as there is a chance for flickering. Though it might be tempting, in PSM one should always allow a full sinuswave to be passed to the load, not a half sinus as in that case the load will be fed factually from DC which is not a good thing for most AC loads.
The difference between leading edge cutting and PSM is mainly in the software: in both cases one will need a circuit that detects the zero crossing and that can control a triac.
A circuit that can do this is easy to build: The zero crossing is directly derived from the rectified mains AC lines – via an optocoupler of course- and gives a signal every time the wave goes through zero. Because the sine wave first goes through double phased rectification, the zero-crossing signal is given regardless whether the sinus wave goes up through zero or down through zero. This signal then can be used to trigger an interrupt in the Arduino.
Color:as shown
Material: plastic + metal
Package Contents: 1*AC Light Dimmer uleOnly the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1
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