• Merry Christmas!
    Merry Christmas!
    • December 25, 2023

    On behalf of Powerld Enterprises, we wish all our valued partners a merry Christmas and happy new year. We wish all the people in peace and healthy life.

  • What are the advantages of a power supply with active PFC?
    What are the advantages of a power supply with active PFC?
    • December 31, 2020

    Switching power supply is a kind of power supply that uses modern power electronics technology to control the time ratio of switching on and off to maintain a stable output voltage. Switching power supplies are generally composed of pulse width modulation (PWM) control ICs and MOSFETs. So what are the advantages of a power supply with active PFC? 1. For switching power supplies with the same rated power, active PFC switching power supply have a higher conversion efficiency than passive PFC products, because the former tends to have a higher level of workmanship, materials and structure, and the quality will be better, so active PFC switching power supply objectively saves electricity costs. 2. Active PFC power supplies are more adaptable to AC input voltage. Basically, the current wide-range power supplies adopt active PFC design, so that the active PFC power supply can still maintain a stable output under relatively large input voltage fluctuations. However, passive PFC power supplies have certain requirements for the stability of the input voltage, and the adaptable range of voltage fluctuations is often not as good as that of active PFC power supply, and may not work normally in an environment with large input voltage fluctuations. 3. Active PFC power supply can reduce the interference of the power supply to the mains grid, especially to avoid its impact on other electrical appliances when it starts suddenly. 4. Passive PFC is usually a large inductor, which is made of multiple silicon steel sheets wound with copper wire, so the volume of the power supply will be very large; while the active PFC is composed of an inductor coil and an IC control chip, and the power supply will be very large compact. 5. The active PFC power supply can meet the requirements of EN61000-3-2, class D (the highest level), and the harmonic pollution to other equipment is small. The passive PFC power supply may not even meet the EN61000-3-2, class A level. The harmonic pollution of other electrical equipment around will be very large. Powerld has many power supplies with active PFC, like GKF series, DG Series, PDF series and PSF series. We would like to introduce you our best power supply solution with your requirements.

  • Happy New Year
    Happy New Year
    • December 31, 2020

    To celebrate new year, POWERLD offices and factories will be closed from Jan 1st. to Jan 3rd and will resume to work on Jan 4th. Wish everyone a happy new year!

  • CNY Holiday Notice
    CNY Holiday Notice
    • January 19, 2021

    To celerate Chinese New Year, POWERLD offices and factories will be closed from Feb. 4th to Feb 17th. All work will be resumed on Feb. 18th. On behalf of all POWERLD staff, wish you a happy new year!

  • Why switching power supply need conformal coating?
    Why switching power supply need conformal coating?
    • March 09, 2021

    Powerld has been specializing in switching power supply for 30 years and has unique insights into many applications. Some coastal customer applications are close to the sea, and the salt fog in the air is very thick. If the switching power supply is not with conformal coating, many components will be corroded by the salt fog and fail. For such applications, our company will brush conformal coating for both sides of the switching power supply, by doing this, can greatly extend the life of the power supply. For example, VAT-UP300S-X-60L-A, used for LED display application. There are also some customer applications in supermarkets. Some supermarkets are dirty and there will be a lot of bugs. Bugs running into the power supply will cause some componnets to short-circuit and fail. For such applications, our company will brush conformal coating for both side of switching power supply, at the same time , Use heat shrink tubing or white glue to protect the components of the high voltage part to avoid short circuit failure caused by insect contact. These will be customized projects. Our standard switching power supplies are also with conformal coating, such as PD-35, PD-50, PD-75, GKF-100, GKF-150, GKF-200, GKF-320, PDF-600, PDF-800 series and All Din Rail power supplies. Switching power supplies with conformal coating can help customers reduce customer complaints and losses, powerld has always been considering customers’ applications.

  • Two LED display power supply introduction
    Two LED display power supply introduction
    • January 27, 2021

    Powerld has focused on LED display market for 30 years. According to customers’ demand and market trends, we have developed many kinds of switching power supply. Now customers focus on these LED displays like transparent LED display, high definition LED display… Powerld has full range of LED display power supply for these application. For example, for transparent LED display, we have power supply like VAT-UP200U-5. It has below features: 1.Universal AC input 2.Built-in active PFC,PF>0.95 3.High efficiency, long life and high reliability 4.Output protection: SCP/OLP/OVP/OPP 5.Wide operating ambient temperature (-20~65℃) 6.All using105 ℃long life electrolytic capacitor 7.100% full load burn-in test 8.PCB with conformal coating 9.3 years warranty For more information, kindly contact our sales. At high definition LED display application, we have power supply like VAT-UP200-5-P-A. It has below features: 1.Universal AC input (90~264Vac) 2.With Active PFC, PF>0.95 3.Surge 300Vac for 60S 4.High Efficiency, long life and High reliability 5.Output protections: OLP/OVP/SCP/OPP 6.1+1 parallel function, current sharing 7.Wide operating ambient temperature (-40℃~65℃) 8.Operating altitude up to5000m 9.All using 105℃ long life electrolytic capacitors. 10.100% full load burn-in test 11.Fanless, quiet working 12.PCB with conformal coating 13.Low profile, 30mm 14.3 years warranty If you need detailed information about this power supply, kindly contact our sales.

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