Production process

LDSOLAR PWM solar controller production process

In this video, we will show you how to produce and assemble a SD2420C solar controller from a small component

Wuhan Welead New Energy Co., Ltd., formerly known as Wuhan Welead S&T Co., Ltd., is a professional manufacturer integrating R&D, production and sales, and only produces solar controllers. The factory is located in Wuhan Economic and Technological Development Zone. We are committed to installing advanced ldsolar controllers for every off-grid solar system. With registered brand LDSOLAR, our main items are: 1,PWM solar controllers,represented by Land Dream Series,Sky Dream Series and Ocean Dream Series with power range from 10A to 60A,voltage 12V-24V,48V. 2,MPPT solar controllers,represented by Tracer Dream Series,power range from 15A to 80A, and voltage are 12V-24V-48V. Using imported 32-bit chips and a new generation of self-developed MPPT algorithm, the controller has higher sampling accuracy and faster response speed, effectively increasing the utilization rate of solar panels by 20% to 30%. In order to ensure a good experience for customers when using our controllers, the products strictly follow the ISO9001 production process, comply with the latest test standard EN62109, have obtained CE, RoHS and IEC international standard certification, and more than 30 national patents. Strict material control and production process management guarantee over 99.9% of qualified products and extremely high customer satisfaction Use ldsolar controller,Build off-grid solar system!      

Best Tracer Dream 75V Series Process flow Supplier.
The product does not retain odor. The breathable perforated design allows airflow and can effectively avoid produce of any smell.

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1.Advanced MPPT technology, fast and stable track the Maximum Power Point, tracking accuracy 99.5%

2.Adopt Synchronous Rectifier Technology, significantly improve the transfer efficiency of circuit, maximum 98.5%.

3.Accurately identify and track multi peak power point function

4.PV array limited power input function, to ensure that the controller does not overload operation under any conditions.

5.Widely range of Maximum Power Point of PV array, Max PV input Voltage 75V.

6.12/24VDC system voltage automatic recognition

150V工艺流程.
The product is valued for their features like durability, long-lasting functionality, and long service life.

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LDSOLAR upgrades the Clear protection paint process for all MPPT controller products

The three-proof paint process refers to coating a layer of polymer film to completely cover the outline of the printed circuit board, thereby providing protection to the circuit board components. After the electronic circuit is coated with the three-proof paint, it can prevent the corrosion of moisture, dust, chemicals and extreme temperatures. If it is not sprayed (no protection), it can cause damage or malfunction of electronic components. When the controller is in a humid and dusty environment, it is necessary to get better protection, LDSOLAR in the MPPT controller production process, coating the circuit board with three-proof paint, can effectively improve the product to work in harsh environments, and effectively reduce The failure rate of the product.

In this video, we will introduce how ldsolar sprays the three-proof paint on the solar controller

Professional Ocean Dream Series Process flow manufacturers.
will take serious attitude to complaints of our  if there is any.

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MPPT solar charge controller introduction video

MPPT has in many ways revolutionized the PV industry. Higher-voltage PV arrays can now be used, reducing wire cost, improving efficiency, and increasing array performance under less-than-ideal conditions (clouds, low-horizon sunlight). But what exactly is MPPT, and how does it work?

Take a 12 V PV module, put it out in the sun, and measure the open-circuit voltage (Voc)—it will be much higher than 12 V, likely approaching 20 V. The reason that “12 V” nominal modules need to produce more than 12 V is that its voltage is the electrical “pressure” in a circuit, and has to be higher than the battery voltage to “push” energy into those batteries. PV modules perform best at cold temperatures, but their voltage will decrease as they get warmer—by about 0.5% per degree centigrade. A “12 V” nominal battery will rise to more than 14 V as the batteries approach a full state of charge. Higher PV voltage is essential, especially in hot weather; to push amps into the battery.

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