了解有关用于 LED 的三端双向可控硅调光器的所有信息

LED lights are everywhere these days. They save a lot of energy but aren't as good as old bulbs in showing true colors or dimming.

Now, there's a new tech called TRIACs used in 调光器.在旧灯泡仍然普遍存在的家庭中，这些灯具正在取代其他类型的灯具。简单地说，TRIAC 通常是这些灯具的一部分。

LED 需要耗能少、寿命长才是最好的。即使使用廉价零件，它们也能很好地管理功能强大的设备。由此可见，TRIAC 非常适用于需要可靠的灯具和其他关键电气设备。

What's a TRIAC?

TRIAC 是一种带有三个接头的电子零件，接通时可产生双向电流。可以把它想象成以独特方式连接的两个可控硅。

To turn it on, a TRIAC needs a gate signal like what's in an SCR. Its main use was to better manage AC power.

There are many TRIAC types to choose from. They're made to handle different power levels and stay safe. But, most TRIACs handle less than 50 A, which is less than SCRs. So, they aren't good for very high power needs. TRIACs are really useful. They can work with both plus and minus power ends, making them super handy. This means they can be used in many designs. While SCRs can move current two ways, they aren't as good with low power as TRIACs. So, TRIACs are a better pick for most people.

TRIAC 调光的工作原理

从交流 0 相开始，通过降低输入电压开始调光，直到输入电压达到最大值。 TRIAC 调光器 works. This keeps up until output voltage matches what's needed. This dimming changes the AC's effective value. The first part adjusts the angle for each AC half-wave.

简而言之，TRIAC 调光工具就像快速开关，帮助决定 LED 灯的电流。打开时，它控制内部的电子流。

通常，这意味着切断电压形状，停止供电。这种停止发生在负载满载时。

LED 灯中的 TRIAC 工具有一个很酷的地方，那就是它可以改变亮度。由于开关有点慢，功率会下降，从而使灯泡的亮度降低。

How fast the switch works shows how much energy is used. A quick switch uses more energy. But a slow switch uses less energy, making the LED a bit dim. The good part of TRIAC dimming is it doesn't easily break or flicker.

与其他调光器不同，TRIAC 调光有利于延长 LED 灯泡的使用寿命。这是通过在 TRIAC 的栅极上使用双向电压来控制电流。接通时，TRIAC 让电能通过，但如果电流过低则会停止。

该电路在电压较高时性能良好，但控制电流较低。具有相位控制功能的 TRIAC 电路可调节电路负载中的电流。

If you're using an LED with a TRIAC dimmer and want a TRIAC 调光 LED 驱动器请确保调光器是真正的 TRIAC 设备。

有些 TRIAC 调光器与电阻负载配合使用效果最佳。但是，LED 和 TRIAC 调光器的错误配对可能会导致噪音或闪烁等问题。如果不加以解决，可能会缩短 LED 灯的寿命。

为什么选择 TRIAC？

众所周知，TRIAC 可处理较大的电压，在许多电气控制系统中都有应用。由此可见，TRIAC 非常适合控制灯光，而这正是我们每天都要做的事情。

TRIAC 电路非常灵活，可通过多种方式控制和切换交流电源。例如，它们可以为小型电机和风扇供电。TRIAC 系统虽然简单，却能提供多种控制方式，因此对许多人都很有用。

TRIAC Controller & Receiver's Job in Lights

"(《世界人权宣言》) TRIAC 控制器 is a detailed way to adjust different light features. It works by quickly changing the electric current's way, making a dim effect. This isn't just for LEDs, but for other lights too.

在照明或加热等大功率用途中，TRIAC 是首选。与普通开关相比，它们的开启和关闭速度更快，可减少不必要的声音和电子噪声（EMI）。

使用 TRIAC 接收器可以调整发送到设备的功率。方法是始终检查 TRIAC 两端的电压，当电压合适时开启设备。

LED 又称发光部件，因其节能、寿命长、光照强而广受欢迎。

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TRIAC 调光器如何应用于 LED 系统

LED 又称发光部件，因其能耗低、寿命长、光照强而深受人们喜爱。然而，调节其亮度却很困难。这时，TRIAC 调光器就能帮上忙。

通过改变电流，TRIAC 调光器可以调节光线。它们能在开启和关闭状态之间快速切换，并保持电流稳定。这使它们成为 LED 调光的完美选择。

But, using TRIAC dimmers with LEDs can be tricky. Before setting up an LED, check if it fits with the dimmer. Next, see if the dimmer can manage the LED's power needs. Also, connecting the dimmer and LED right is key.

按照这些步骤，TRIAC 调光器可以平稳地改变 LED 的亮度，而不会闪烁或产生其他不良影响。此外，它们还适用于许多 LED 灯和灯泡。

前沿调光变得简单

过去 前沿调光器 were used with normal and spotlight bulbs. Made for these bulbs, they use lots of power, which means they don't always work with low-energy LEDs.

对于 LED 灯，请记住它们的耗电量很小。因此，它们可能无法满足调光器的功率需求。虽然 LED 耗能较少，但它们发出的光亮度很高，对于某些调光器来说可能过高。对于 LED 的调光，最好使用对功率变化反应更好的跟踪式调光器。

了解 "后缘 "理念

Today's 蔓生 边缘调光器 比老式的前沿型更好。它们调光更流畅，嗡嗡声也更少。

They need less power, so they're good for LEDs. When using them with LEDs, follow the 10% rule. For example, a 400W dimmer can handle 40W of LED lights, but 400W of normal bulbs.

前沿调光器与低功率灯配合得很好，可以在不需要大量电力的情况下实现我们想要的调光效果。

前沿调光器与后沿调光器：要点

Leading-edge dimmers, used before with normal, spotlight, or wired bulbs, were picked for being easy and cheap. Often named "TRIAC dimmers" because of their switch, they control power use. But, they need a lot of power, so they don't always fit with low-power LEDs or CFLs today.

Trailing-edge dimmers work silently and smoothly, fitting different building styles. Needing less power, they're great for circuits with small, energy-saving bulbs.

了解 TRIAC LED 系统并进行设置

Adding a TRIAC helps change an LED's brightness. The TRIAC, a part with three ends, needs power on its gate end to turn on. When power is off, it turns off.

Because it can finely control an LED's power, the TRIAC is great for this. To set up a TRIAC dimmer at home, first change your normal light switch. Join the wall's black wire to the dimmer's same colored wire. Then, connect the dimmer's white wire to the wall's white one. Last, link the dimmer's green ground wire to the wall's plain copper wire.

什么是调光？

调光就是通过开关改变灯光亮度。目前有多种类型的调光设备。

这些设备包括 Triac 调光器、工作电压在 0-10 V 之间的 LED 调光器和脉宽调制 (PWM) 调光器。每种类型都以自己的方式改变电流、电压和频率，从而影响光源发出的光线。

过去，Triac 调光用于普通和小型荧光灯。但现在，它也能很好地用于 LED。Triac 调光有其特定的工作方式。

调光从交流 0 相开始，一直持续到三端双向可控硅设备接通，从而导致输入电压大幅下降。导通角度会改变电压的形状，从而产生与起始电压不同的新形状。

根据一定的方向规则，通常负载所需的功率会降低。这就降低了输出电压值（基本负载）。

People in the industry like the Triac dimmer because it's accurate, efficient, small, light, and works from afar. So, many companies use it. Triac dimming is loved for its low cost, reliability, and low running costs.

关于 PWM 调光

PWM 是脉宽调制的简称，是一种利用计算机数字输出控制模拟系统的新方法。它的效果非常好。

这种方法在许多领域都有应用，如测量、通话、电源控制、更换，尤其是 LED 灯。将模拟系统转变为数字控制可以节省资金和能源。

现代计算机芯片通常都内置 PWM 控制功能，突出了数字控制的便捷性。获取 PWM 值是检查模拟信号强度的直接方法。通过详细的计数器，可以调整方波的通断时间。

即使 PWM 信号是数字信号，有时也可能存在全直流电源。这会导致电压源或电流源有规律地开启和关闭，从而为模拟负载供电。

When the DC power is on, the load is connected. But when off, it disconnects. With the right frequency range, PWM can show any analog value. To understand better, there's a diagram showing different PWM signals below.

LED 0/1-10v 调光说明

0-10v 调光是一种模拟调光方式，其特殊之处在于驱动器有两个端口：+10v 和 -10v。通常，普通的 Triac 调光器只有一个端口：+10 伏和-10 伏。

调光通过控制驱动器发出的电流来实现。这里，0V 表示全黑，10V 表示全亮。例如，在电阻调光器中，如果电压为 1V，电流为 10%。当电压为 10V 时，电流为 100%。

It's key to see the difference between 0–10V and 1–10V. The first one has an on/off switch. The second one doesn't, so the light is always on, but can be dim.

学习 DALI 调光

要设置 DALI 调光，需要一根双线控制电缆。完成基本设置后，高级灯光控制系统可让你使用设定的规则改变照明电路。有了 DALI 照明，LED 筒灯和 LED 射灯等就能完全控制其光源。

DALI 的特别之处在于其调光范围大，优于其他新型调光方法。此外，新的 DALI 技术还扩大了其用途，使其成为管理 RGBW 和 Tunable White 灯光的理想工具。如果您需要细致地改变颜色，最好使用 DALI 标准调光部件。

了解调光曲线的工作原理

调光曲线是调光器工作时遵循的既定规则。一旦调光器收到信号，它就会确保灯光与设定的模式相匹配。想想旁边图片中显示的渐变模式。

选购调光器时，调光曲线非常重要。它能塑造最终的光线，并显示数字调光器的工作原理。

观察不同的调光模式

调光曲线按其在图表上的外观进行排序。LED 也被称为 "明亮的小部件"，因其耗电少、寿命长、亮度高而成为时下流行的灯具。

With straight dimming curves, the light matches the power given. Like, a 25% power signal gives 25% light. But, with curve-like dimming, the light changes as power levels go up. When light is dim, the signal to its driver changes slowly. But, when it's bright, the change is fast.

Dimmers can be set with shapes like the "S" shape or a "soft straight" shape. These power ranges, called "sliders," help give more control over part of the total power range. For the best look, especially in buildings, picking "straight" or "curve-like" for all devices is best.

使用 TRIAC 调光器与 LED 的优缺点

TRIAC dimming has many good sides like being efficient, adjusting well, being light, small, and easy to use with a remote. Right now, it's a popular dimmer type you can buy.

A big plus, with LED lights, is that it's cheap to use. But, TRIAC dimmers have issues too. They can't dim all the way sometimes. Even at the dimmest, a little power still goes through its switch, which is a problem that's not fixed yet for LED dimming.

更好地理解前缘调光

In the past, these dimmers were mainly used with normal and halogen lights. They were made for those lights and need a lot of power. So, they don't work that well with power-saving LEDs.

如果您将这些调光器与发光二极管一起使用，要知道发光二极管的耗电量很小，可能无法打开这些调光器。LED 虽然省电，但会发出很亮的光，对某些新型调光器来说可能太亮了。对 LED 进行调光时，最好使用拖曳式调光器，因为它们对功率变化反应灵敏。

了解什么是后缘调光

New trailing-edge dimmers are better than the old leading-edge ones. They fade lights quietly and smoothly and have less issues. They need less minimum power, so they're great for LEDs.

When dimming LEDs with these, follow the 10% rule. For example, a 400W dimmer can handle 400W of normal lights but only 40W of LED lights. These dimmers are best for dimming lights that don't need much power, without issues of old dimmers that need lots of power.

讲述 前沿和后沿调光器 分开

In the past, leading-edge dimmers, sometimes called "TRIAC dimmers" because of their switch, were chosen for normal, halogen, or special magnetic lights. They were easy to set up and cheap, which made them liked. But, they need too much minimum power for new low-power LEDs or CFLs.

另一方面，曳光调光器安静、光滑、制作精细。这使它们在许多地方都能很好地使用。此外，它们还能与使用较新的省电灯的装置完美配合。

相关产品

TRIAC 可调光 LED 驱动器 5-240W

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