Shanghai Ceyuan Industrial Co.,Ltd

Shanghai Ceyuan Industrial Co.,Ltd

Product Categories
Contact Us

Shanghai Ceyuan Industrial (SCI) Ltd.

ADD:Room 901, No.20, Lane777, West Guangfu Road, Putuo District, Shanghai, China. 

Contact: Ellie Wang

TEL: +86-573-82753308

Mobile: +8618042017693

FAX: +86-573-82753302



LED Flood Light Cooling Structure

1. Driver chip EMI, noise and high voltage capability is also related to the entire LED lighting products can successfully passed CE, UL certification, LED Flood Light so the design of the driver chip should use advanced topology and high-pressure production process.

2. Driver chip package should be conducive to the driver chip die fast cooling, such as the direct bonding of the die on the copper, and a pin directly extended outside the package, LED Flood Light so that the direct welding of copper in the PCB board Quick heat conduction. If a similar 4x4mm chip to pass a long time 300 ~ 1,000mA current, it will inevitably generate power and heat, so the chip's physical cooling structure is also very important.

3. The nominal input voltage range of the driver chip should meet the DC 8 ~ 40V to cover the wider application needs. Pressure capacity is better than 45V. LED Flood Light When the input is AC 12V or 24V, the output voltage of a simple bridge rectifier fluctuates with the grid voltage, especially when the voltage is high, the output DC voltage will also be high. If the driver IC does not have a wide input voltage range, it tends to breakdown when the voltage of the power grid rises, thus burning the LED light source.

4 driver chip nominal output current requirements of more than 1.2 ~ 1.5A. As the LED light source for lighting, the nominal operating current of a 1W power LED light source is 350mA, LED Flood Light and the nominal operating current of a 3W power LED light source is 700mA. Power LED light source needs more current, so the LED lighting lamp driver used in the selection of sufficient current output, LED Flood Light the product must also be designed to work in the driver IC at full load output of 70 to 90% of the best work area. The use of full-load output current drive IC in a narrow space for poor cooling lamps, lamps easily lead to fatigue and early failure.

5. The driver chip's own power consumption requirements of less than 0.5W, LED Flood Light switching frequency requirements greater than 120Hz, in order to avoid the occurrence of frequency interference visible flicker. In short, LED green lighting prompted the driver chip to innovative design development. LED lighting lighting can not be separated from the driver chip, so you need multi-function LED light source driver IC. LED Flood Light If the LED lamps use less than 36V AC power supply, non-isolated power supply can be considered; if the choice of 220V and 100V AC power supply, you should consider isolation power supply.

Copyright © Shanghai Ceyuan Industrial Co.,Ltd All rights reserved.
QR Code