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解决方案 - 舞台灯网

27

2020-08

EMC83116309C辐射时钟解决方案

Features 1.65V – 3.6V, 1x Ultra Low Power Mobile EMI Reduction IC ● FCC approved method of EMI attenuation ● Non-PLL phase controlled Active EMI management architecture ● Generates a 1X low EMI Phase Modulated replication of the input signal. ...

22

2020-02

某LED灯具传导不合格,不添加一颗器件不动PCB板典型整改案例

摘要:广东某颇具规模的LED灯具厂家,在某广州科学城国外机构实验室做CE认证,通知传导发射不满足标准EN 55015的发射限值要求,并要求进行传导整改。经过与厂家沟通分析,此灯具从佛山某知名LED驱动器厂家采购的二类LED驱动,LED灯条板、金属支架等组成为最终的一...

22

2020-02

佛山某一热水器传导与骚扰功率整改案例

传导整改 1、去掉Y电容C4和C6.在非晶共模电感后面再加“方形磁芯扁平线共模SQ1918-20mH.” 2、两个电源靠近低压侧的Y电容管脚加穿芯磁珠:RH3.5*4*1.5 。 骚扰功率整改 1,输入线的L、N线的非晶磁环前移把地线也包含在内,绕3到5圈。 2,大...

22

2020-02

某一资讯产品韩国KC市场准入辐射整改案例

摘要:这一资讯产品需要出口韩国市场,依据法规要求结合本产品需要满足KC EMC、Safety要求,若还带有wifi、BT等射频则还需要满足KC RF要求,另外一部分资讯产品则还需要满足MEPS, E-standby要求。这里就此产品在韩国本地测试出现辐射不合格进行一些韩国KC EMC测试要...

22

2020-02

集HDMI、Bluetooth、Optical、Line in无线蓝牙音箱EMC整改案列

Abstract A hot news from the Starpulse.com. Audio giant Harman announced a number of new products from JBL and Harman Kardon, but the one that caught the eye was the JBL Cinema Soundbar SB400. A soundbar/subwoofer combos designed for HDTVs, you ...

22

2020-02

EMI滤波器的精确设计

中心议题:电子系统产生的干扰特性                电源输入阻抗特性                一种由软件设计的最佳滤波器导言:怎么选择一个现有的滤波器或者设计一个能满足需要的滤波器?工程师表现得很盲目,只有凭借经验作尝试。EMI滤波器的设计应该充分考虑干扰特性和阻...

22

2020-02

辐射时钟解决方案EMC73661108F

1. DESCRIPTION FEATURES The EMC73661108F is a versatile, 3.3V/2.5V EMI suppressor IC.EMC73661108F accepts an input clock either from a Crystal or from an external reference (AC or DC coupled to XIN/CLKIN) and locks on to it delivering a 1x modu...

22

2020-02

EMC83115309C辐射时钟解决方案

General Purpose Peak EMI Reduction IC EMC83115309C is a versatile, 3.3 V / 2.5 V Peak EMI reduction IC based on TIMING SAFE technology. EMC83115309C accepts an input clock either from a Crystal or from an external reference (AC or DC coupled to...

22

2020-02

DVD播放器骚扰功率EMI整改实例

摘要 DVD多功能播放器需要出口韩国测试Cispr13/GB13837,Cispr 20/GB T 9383里面的骚扰功率,辐射、传导、S1~S5等抗扰度测试。 关键词 Cispr13 Cispr 20 骚扰功率整改 EUT不合格描述 骚扰功率前端40MHz~140MHz BB超标,从波形看主要是电源部分的宽带骚扰。...

22

2020-02

200W LED路灯传导整改

样品描述: 该LED路灯驱动器采用The FSFR-XS series includes highly integrated power switches designed for high-efficiency half-bridge resonant converters。EMI滤波器部分,前级采用两级共模抑制,两级X电容,及一级差模电感以及输入2pcs Y 222电容分别对PE...