LSP-500VAR

05 Aug, 2021 2933

Detailed Explanation of EN61000-3-2:2019 Limits for harmonic current emissions Standard

Limits for harmonic current emissions(EN/IEC 61000-3-2:2019) was promulgated on 1st, September, 2019. The new standard is applicable to the European Union and related countries and regions. This standard will be enforced on March 1, 2022 and will replace EN IEC 61000-3-2:2014. The new standard restructures and narrates some chapters, redefines equipment categories, and updates the measurement requ...

27 Nov, 2020 2467

Analysis of flicker parameters of several common lighting products

1. Introduction of flicker parameter Flicker (light source flicker) means that the light output of the lighting source fluctuates with a certain frequency. At present, the international research results on strobe include IEEE std1789, IEC TR61547, CIE TN 006, etc. 1.1. Flicker percentage and flicker index in IEEE std1789 The flicker index refers to the area above the average light output line in a...

26 Nov, 2020 2276

Definition and Test Method of LED Flicker

LED flicker, that is, the LED liquid crystal display screen flickers. The LED liquid crystal display has a backlight strobe in low-brightness mode, similar to the old CRT display. Use your fingers to quickly shake in front of the screen to see smear. 1. LED flicker refers to two concepts: The first is flicker: the depth of fluctuating light flux of the electric light source. The greater the fluctu...

19 Nov, 2020 2991

EU announces new ErP regulations and energy efficiency labeling regulations for lighting products

On 5th, December, 2019, the European Commission officially announced the new ErP Regulation (EU) 2019/2020 and Energy Efficiency Labelling Regulation (EU) 2019/2015 for lighting products, which will replace the current ErP Regulation (EC) No 244/2009, (EC) ) No 245/2009, (EU) No 1194/2012 and Energy Efficiency Labeling Regulation (EU) No 874/2012. The new regulations have been issued for more tha...

27 Dec, 2015 4337

AC and DC Power Supply Introduction

Power supply is the device to change other forms of energy in to electric energy. Power supply products are widely applied in industry automation control, military equipment, scientific equipment, industrial equipment, computers, communications equipment, electrical equipment, instruments, medical equipment, semiconductor refrigeration and heat and other fields. There are two common types of major...