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Classification of LED power supplies by driving method

Information classification:

Industry news

LED Power SupplyClassified by Driving Method

1. Constant Current

The current output of the constant current driving circuit is constant, while the output DC voltage varies within a certain range depending on the load resistance. The lower the load resistance, the lower the output voltage; the higher the load resistance, the higher the output voltage.

Constant current circuits are not afraid of load short circuits, but complete open circuits are strictly prohibited.

Constant current driving circuits are ideal for driving LEDs, but they are relatively expensive.

Attention should be paid to the maximum current and voltage values used, as they limit the number of LEDs that can be used.

2. Voltage Regulated

Once the parameters in the voltage regulation circuit are determined, the output voltage is fixed, while the output current varies with the load.

Voltage regulation circuits are not afraid of load open circuits, but complete short circuits are strictly prohibited.

When using a voltage regulated driving circuit to drive LEDs, a suitable resistor must be added to each string to ensure that the brightness of each string of LEDs is uniform.

Brightness will be affected by voltage changes from rectification.

Advantages and Disadvantages of Overall Constant Current and Per-Channel Constant Current Working Modes

Compared to overall constant current, per-channel constant current has more disadvantages and is more expensive. However, it can truly protect LEDs and extend their lifespan, so per-channel constant current is the trend of the future.

Through the above introduction, I believe everyone has a better understanding of the classification of LED power supplies by driving method. Jiangmen Tongke Technology Co., Ltd. is a technology-based enterprise that integrates R&D, production, sales, and service, specializing in supporting smart home electronic appliance products. Our main products includeLED constant current driving power supply, ultra-thin 3C LED constant voltage control devices (power supply/driving) series, glue dripping and flexible LED light strip series, acrylic light guide strips, touch/sensor switch series, built-in bathroom mirror/cabinet series, high-power dryer care devices, LED home lighting series, LED outdoor lighting products, etc. If you have any related needs, please feel free to contact us.

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