Diodes LED driver achieves high power factor to effectively improve LED lamp performance

Diodes Incorporated introduces the AC-Dc Led Driver AP1684 with power factor correction, which is suitable for various off-line LED lamps such as E26, GU10, PAR and T8. This device utilizes pulse frequency modulation technology and operates in critical conduction mode to provide current accuracy of up to ± 2% and achieve a power factor of 0.97 and total harmonic distortion of less than 20%.

This primary-side driver does not require a photocoupler, secondary-side control and loop compensation circuit, which helps to greatly reduce the cost of the circuit bill of materials. The AP1684 is driven by external bipolar transistors, requiring only a few external components, and using the SO8 package, allowing lamp designers to reduce printed circuit board area, and improve power density and overall product reliability.

This driver can maintain low starting current and operating current. It also uses dynamic base drive control and low valley conduction mode to minimize switching losses, thereby achieving up to 93% efficiency. AP1684 is equipped with complete circuit protection functions such as overvoltage, short circuit and overtemperature.

For further product information, please visit the company's website.

Diodes Introduction

Diodes Incorporated is a S & P SmallCap 600 Index and Russell 3000 index company. It is a leading global manufacturer and supplier of discrete, logic and analog semiconductor products, serving consumer electronics and computers. , Communications, industrial and automotive markets. Diodes products include diodes, rectifiers, transistors, MOSFETs, protection devices, special function arrays, single-gate logic, amplifiers and comparators, Hall effect and temperature sensors, covering LED Drivers, AC-DC converters and controllers, DC- Power management devices including DC switches and linear regulators, voltage references, and special function devices such as USB power switches, load switches, voltage monitors, and motor controllers.

Diodes' headquarters, logistics center and US sales office are located in Plano, Texas, USA, and are located in Plano, San Jose, California, Taipei, Manchester, United Kingdom and Neuhaus, Germany Design, marketing and engineering centers; wafer manufacturing plants in Kansas City and Manchester, Missouri, and two in Shanghai; two assembly and test facilities in Shanghai and Chengdu; and Neue in Germany One each in House and Taipei; engineering, sales, warehousing and logistics offices in Fort Worth, Taipei, Hong Kong, Manchester, Shanghai, Shenzhen, Seongnam and Suwon in South Korea, Tokyo and Munich; and With sales and support offices around the world.

Shenzhenshi Zhenhuan Electronic Co.,Ltd(www.szzhpower.com) was founded in 2008, specialize in external power adaptor, ac dc adapter, Outdoor Waterproof Power Supply, led driver , Power Transformer, switching power supply, dimmable or non-dimmable Led drivers and Battery Charger.