IACS CO., LIMITED (Yiwu Fuwei e-commerce firm)

When it comes to LED driving accuracy, we usually think of constant current error. In fact, driving accuracy is not limited to current accuracy. LED is a typical current driven device. Precise control of LED driving current can determine many parameters including light efficiency, power efficiency, heat dissipation and product brightness. Driving LED is mainly to control its current. Whether directly increasing or reducing the driving current, or reducing the switching time ratio by the duty cycle (PWM), it is the control current mode, but the purpose is different. This article will explain the difference between different drivers in different applications.

Introduction to the principle of distributed constant current drive

In the past incandescent lamp and energy-saving lamp market, LED is difficult to comply with the mainstream lamp models with limited specifications formed by large companies. LED has its application flexibility, in the future design will bring more power specifications. We need to avoid too many power specifications, not to bring many obstacles to future mass production. Based on the idea of not limiting the design flexibility, but also taking into account the minimum power design specifications, we propose a distributed constant current architecture.

The principle of distributed constant current is to set up independent constant current source at each parallel branch point to manage, maintain and control the stability of branch and branch, branch and overall line. The distributed constant current circuit can be regarded as a complete circuit structure in use, while the actual application is distributed in each node of the circuit, which can be controlled by constant current and can communicate with each other. Distributed constant current design LED products have very high product stability and unique design advantages.

At present, there is a big gap between LED products and actual service life. In the case of limited accumulation of drive circuit design technology, it is easy to cause errors to measure the actual service life with the method of evaluating product life. The stability of the drive circuit will directly affect the overall stability of the product.

The reason why the distributed constant current technology has high reliability is that the AC power supply continues to use the traditional switching power supply and adopts the constant voltage power supply mode. The accumulation of switching power supply technology will create quality conditions for LED power supply design. Under the same power supply specification, there is no need to develop a new power supply model. The power can be downward compatible, greatly reducing the power supply specification and improving the unity of power supply.

When it comes to LED driving accuracy, we usually think of constant current error. In fact, driving accuracy is not limited to current accuracy. LED is a typical current driven device. Precise control of LED driving current can determine many parameters including light efficiency, power efficiency, heat dissipation and product brightness. Driving LED is mainly to control its current. Whether directly increasing or reducing the driving current, or reducing the switching time ratio by the duty cycle (PWM), it is the control current mode, but the purpose is different. This article will explain the difference between different drivers in different applications.

Introduction to the principle of distributed constant current drive

In the past incandescent lamp and energy-saving lamp market, LED is difficult to comply with the mainstream lamp models with limited specifications formed by large companies. LED has its application flexibility, in the future design will bring more power specifications. We need to avoid too many power specifications, not to bring many obstacles to future mass production. Based on the idea of not limiting the design flexibility, but also taking into account the minimum power design specifications, we propose a distributed constant current architecture.

The principle of distributed constant current is to set up independent constant current source at each parallel branch point to manage, maintain and control the stability of branch and branch, branch and overall line. The distributed constant current circuit can be regarded as a complete circuit structure in use, while the actual application is distributed in each node of the circuit, which can be controlled by constant current and can communicate with each other. Distributed constant current design LED products have very high product stability and unique design advantages.

Yiwu Fuwei e-commerce firm (IACS Co., Limited) is a very professional Led manufacturer who produces high quality outdoor led light. Our popular products are solar led lights, UFO lights, underwater lights and so on. If you have any question about the led product, please feel free to contact us.