选择并连接 LED 电源与 LED 灯条

安装要求也应仔细考虑 确保变压器和灯之间的兼容性。通过将 24 伏直流电源与 12 伏 LED 配对，您不会获得更亮的灯光 — 事实上，这可能会严重损坏两个电源 — 由于在一个 LED 控制器或 LED 灯条上使用多个电源，从而导致火灾风险。为了确保一切按预期协同工作，明智的做法是不要将多个电源组合用于单个 LED 或控制器应用。这篇文章将向您展示如何选择和安装合适的电源，包括 LED 电源出现问题时的基本故障排除步骤。另请参阅我们完整的 LED电源指南。

1. 需要考虑什么

有如此多的 LED 驱动器可供选择，找到合适的驱动器可能具有挑战性。在本指南中，我们讨论了在购买最适合您的 LED 驱动器之前应考虑哪些因素。

为什么使用 LED 电源？

通常使用低压 LED 灯带，电压可选择 5V 或 12V DC。由于大多数家庭使用交流 120-277V 电力，因此您不能简单地将灯带直接插入。由于电压差较大，LED 灯带还必须使用驱动器或电源，以便将高交流电压转换为较低的直流电压。

1.1 LED 电源：恒压还是恒流？

什么是恒压驱动？ 恒压电源提供恒定的直流输出电压；通常为 12VDC。具有恒压驱动器的 LED 灯泡通常在其规格中指定所需的输入电压。恒压电源由 120–277VAC 的标准墙壁插座电压供电，并由恒压驱动器转换为直流电 (VDC)。无论有多少电流流过它们，它们的恒定电压都保持恒定不变。

什么是恒流驱动器？ 恒流电源具有既定的输出电流。驱动器使用电子电路来维持整个 LED 系统的恒定电流。恒流 LED 驱动器有两种额定电流：350 毫安 (mA)、700mA 和 1 安培。恒流驱动器是为高功率 LED 供电的有效方式，因为它们在整个系列中提供一致的亮度。

我应该购买哪种 LED 灯带？ LED 灯条通常采用恒压 LED 驱动器运行，并有两种主要标准设计。

1.2 确定LED灯带规格

您的电源要求取决于条灯的规格。 KayTai系列2835 LED灯带就是一个​​例子。

1.3 确定电源的最小功率

要选择电动装置，请应用 80%规则 当您做出选择时。根据这一规则，LED 灯带应仅消耗 80% 的电源，以确保最佳性能和使用寿命。在额定功率或超过 80% 的情况下运行也将保持带材的理想温度。假设我们上面使用 96W LED 灯带的示例是正确的，则此类灯的功率驱动器至少需要 120W。

1.4 选择合适的电源

LED 灯条和电源装置配对时，它们之间的兼容性至关重要，这一决定取决于安装过程和项目范围，这是两个主要决定因素。

1.5 其他考虑因素：是否需要可调光 LED 驱动器？

为了 LED 灯具的正常运行，通常需要 LED 灯的可调光驱动器。可调光 LED 灯条允许用户控制亮度，但在设置此功能之前，请确保您的电源能够正确调暗。可调光灯带配备了各种电源，可完美补充它们，因此在购买时请务必仔细阅读其标签。

2. 您需要室内还是室外的 LED 灯带解决方案？

如果您计划将条带放置在室外，则必须保护它们免受天气条件的影响，以便发挥最佳功能。不仅它们的电源装置应该被屏蔽，而且它们的带也必须被屏蔽。对电源进行防水可以防止湿气对其组件造成严重破坏。某些涉及潮湿环境的室内应用可能需要使用防水电机驱动器。

检查安全防护

LED 灯条的电源应包括保护措施，以防止过流、温度峰值和短路/开路风险。全面的保护协议必须涵盖这些问题。如果出现任何危险或故障情况，电源中的安全功能将允许其关闭，并且可以帮助确保您在设备出现故障时保持安全。尽管它们不是强制性的，但如果出现问题，添加它们可能会非常有价值。仅安装具有内置保护功能的电源以获得最佳效果。

检查 UL 列表

UL 标准在评估电气产品的安全和质量方面得到广泛认可，让消费者高枕无忧。符合此标准的产品将获得 UL 证书，以确认符合安全和质量要求。为确保您的设备符合这些标准，请务必在购买前验证其是否具有这些标准。

2 级驾驶员 符合UL1310标准。这需要在 LED/灯具产品上实现接触安全输出，而无需初级安全保护；从而表明火灾风险最小。使用的电源装置不得超过 60 伏干/湿电压、5 安培电流容量或总计 100 瓦；这些保障措施使这些驾驶员更加安全；然而，它们限制了 2 类驱动器可以同时管理的 LED 数量。

UL 1 级 经过认证的驱动器与 UL 2 类驱动器显着不同，因为它们需要更高的电压输出，并且需要在灯具中采取安全预防措施，但在减少安全措施的情况下更加节能。

三、电源推荐品牌

以下是推荐的动力装置精选。使用该列表找到适合为照明项目供电的方案。

4. 如何将低压 LED 灯带连接到电源单元

低压LED灯带属于电气产品。与任何电气产品一样，当将 LED 灯带直接连接到 AC 110 或 220 伏时，应使用驱动器（电源装置）以便从高电压（12 伏或 24 伏）进行转换。

安装电子设备时要记住的另一个因素是极性。您有两种连接极的选择（+）或（-）。连接错误的极性时请小心，因为这可能会损坏您的设备。无需担心电源适配器极性！只需将带公头直流连接器插入插座即可将带连接到适配器。

5. 多个LED灯带可以连接到同一个电源吗？

根据您的设备的输出，多个 LED 灯带可以并联连接在一起，只要它们的总瓦数不超过您的电源设备可以容纳的功率。多个卷筒并联可能会引起电压波动；通过依次关闭它们，该技术可以在连续滚动时提供更高的一致性。

6. LED 灯带距离电源的最大安装距离是多少？

随着 SMD 远离电源，电压降变得更加明显。如果您计划在电源和 LED 灯带之间铺设长电缆，铜可以减少 LED 灯带内的电压损耗。规格表可以帮助您选择最适合您和 LED 灯条应用的电缆厚度。阅读这篇文章了解更多详细信息： How to Prevent Voltage Drop across LED Strip。

7. 如何安装电源

Like most electronics, LED drivers can be susceptible to temperature and moisture extremes. To protect their reliability, install them in an area with sufficient airflow and ventilation. Installing the fan properly will aid airflow and temperature transfer by improving airflow and keeping temperatures stable. Doing this will: maintain an ideal temperature level, prevent overheating and ensure optimal performance, and increase service life.

8. 常见电源问题故障排除

Discover the Mounting Restrictions of Your Power Supply

All power supplies cannot be installed identically for every project; each power source comes with its own installation requirements that must be strictly observed if you want the best performance out of your device. Take, for instance, a power unit that is waterproofed. Place waterproofed units facing upward in an area with good ventilation in order to allow heat from usage to escape through their mounting method and dissipate into the air. Should you disregard this advice, the possibility of power outage increases significantly.

Mounting restrictions for our waterproof power supplies are more flexible. They can be installed upside-down, sideways or even underwater — although direct sunlight, direct exposure to elements outside or standing water should be avoided when possible. Furthermore, weatherproof boxes must be used if being used outdoors.

Check Your Wiring and Connections

At its core, every unit relies on proper wiring. When troubleshooting an issue, first check the wiring to make sure there are no errors or exposed wires touching power sources — even experts make mistakes in this field! As previously discussed, it is also essential that all connections are made in accordance with their polarities. A multimeter can help determine if your wires are connected in an appropriate fashion.

Many power units come equipped with built-in short circuit protection. This feature works by switching on and off whenever there is a short-circuit, usually indicated by burning or smoking wires that come into contact. Other causes for concern could include installing copper pads without proper protective covers on metal surfaces, or solder joints that have become disconnected over time.

Double-Check Input Voltage Settings

Make sure your power unit is configured appropriately to accept voltage input by double-checking its settings for input voltage settings. Failure to properly set your power supply could result in irreparable damage; long-term use at an incorrect setting can cause irreversible harm. Some power supplies feature internal switches for setting the input voltage. Use these to configure your driver with the correct voltage source.

最后的想法

Selecting the proper power supply for your project shouldn’t be difficult. When connecting low-voltage strip lights to their transformer, some key factors must be kept in mind when making this choice. Power sources for LED strips can have an enormous effect on their performance and lifespan, providing maximum benefits when coupled with reliable supplies. When it comes to getting maximum performance from LED strips, quality power supplies are vitally important.

Need high-quality LED drivers for your project? Check out the selection at 凯泰. We have been offering LED strip lights suitable for every imaginable application for almost 10 years — as well as adapters to ensure maximum functionality.