The revised Japan Electrical Appliance and Material Safety Law will go into effect in July 2012. After this revision, the LED Spotlight 30W has also become the object of the regulations applicable. In several limits, particular concern is the limit on the strength of electromagnetic noise. Emergence of large electromagnetic noise compared to incandescent bulbs and fluorescent light bulbs LED lighting apparatus on the market today, with the revision of the Electrical Appliance and Material Safety Law on the implementation of stringent noise countermeasures must be taken. This article will analyze the status of the LED lighting, LED lighting, noise types, evaluation methods, and examples of countermeasures.
Insufficient power supply problems originated in the East Japan earthquake rapidly rising makes people's awareness of energy-saving LED lighting fixtures and energy-saving products such as LCD TV with LED backlight is becoming the mainstream market. LED lighting fixtures, light bulbs, fluorescent tube, chandeliers and ceiling lamps have been put into the market.
led driver 120w bulbs not only well-known lighting manufacturers also began to get involved in vendor products in the store of household goods to low-cost sales, LED light bulb market is rapidly expanding.
At the same time, standardization and regulations of import to the environment of the popularization of LED bulbs are also being established. Previously, the application of the LED bulbs are not "Electrical Appliance and Material Safety Law of object. Therefore, the electromagnetic noise of some LED Power Supply lighting products. As a result, if the streetlight lamps replaced by the mercury lamp LED bulbs will cause the reception of TV and radio obstacles.
The incandescent light bulb is no internal power supply circuit resistive load, so there is no kind of electromagnetic noise problems. Replaced with LED bulbs stand out. If so promote the popularity of LED lighting, there will be multiple noise sources in the home.
Overseas, LED Floodlight 80W fixtures for general lighting apparatus must conform to international standards CISPR15 (electrical lighting and similar equipment - Radio disturbance characteristics - Limits and methods of measurement "), States are issued based on the standard limits.
Japan will also start to enable such restrictions. Since July 2012, LED bulbs will apply to the Electrical Appliance and Material Safety Law ". It also includes provisions on the noise intensity (pre-noise terminal voltage of the band 526.5kHz ~ 30MHz, the frequency band of the noise power for 30MHz ~ 300MHz).
Regardless of whether the "Electrical Appliance and Material Safety Law" purposes, with the expansion of the LED lighting market, also can not be avoided between the problem of interference in other electronic products.
LED Flood light 10W electromagnetic noise source is the power supply circuit. The power part of the LED bulbs are more stringent restrictions in the dimensions, so you need with a minimum of components of electromagnetic noise countermeasures. Of particular importance is the choice of noise countermeasure components. Therefore, this article will be LED lighting power supply circuit leak types of electromagnetic noise measurement method, and can effectively suppress the electromagnetic noise component selection method as the center for analysis.