大联大控股世平推出多款无线智能照明LED调光解决方案
2014年6月11日，致力于亚太地区市场的领先电子元器件分销商---大联大控股宣布，其旗下世平为了满足市场对智能照明的日趋强烈的需求而推出多款基于Zigbee、BLE、Wi-Fi 等无线通讯技术的智能照明LED调光解决方案，其中包括Zigbee LED Lighting、BLE LED Lighting、Wi-Fi LED Lighting等。在这些方案中，整合了大联大控股世平代理的众多国际大厂的高性能产品，包括Cree、EPCOS、Freescale、Gainspan、NXP、ONSemi、ST、TI、Toshiba、Vishay等，再次展现其优异的资源整合能力和系统设计能力。LED具有节能、环保、寿命长、体积小等特点，可以广泛应用于各种指示、显示、装饰、背光源、普通照明和城市夜景等领域。城市智能照明系统作为智慧城市的核心子系统，运用无线ZigBee、Wi-Fi、BLE等多种物联网和IT技术，实现了远程单灯开关、调光、检测等管控功能。
无线通讯模块：
NXP JN5168 Zigbee 模块：
·2.4GHz IEEE802.15.4兼容
·深度休眠：0.1uA
·接收电流：18mA
·发射电流：15mA
·极高的接收灵敏度 ( -95dbm ) 和抗干扰性
图示- Zigbee LED Lighting架构图
Freescale MKW2x Zigbee 芯片：
·2.4GHz IEEE802.15.4 兼容
·50MHz ARM Cortex-M4 MCU，带16通道DMA
·接收电流：15mA
·发射电流：15mA
·灵敏度-102dBm
·输出功率可设置-30 ~ +8dBm
图示- BLE LED Lighting架构图
TI CC2540 BLE 模块：
·高性能、低功耗的8051微控制器内核
·兼容2.4 G蓝芽低功耗的RF收发器
·极高的接收灵敏度（-97dbm）和抗干扰性
·128 / 256 KB Flash 储存器
·8 KB SRAM ，具备在各种供电方式下的数据保持能力
图示- WIFI LED Lighting架构图
Gainspan GS1011M、GS2100M WIFI 模块：
·2.4GHz IEEE802.11b/g/n 兼容
·包含TCP/UDP/IP，HTTP，DNS，DHCP and SSL
·支持UART/SPI 接口
·供电2.7V—3.6V
·内置板载天线，客户也可以外接天线
·低功耗模式：睡眠、深度睡眠
·电源监控
·-40℃--+85℃
数字PWM调光LED驱动：
NXP SSL2129AT LED 驱动：
·IC used: SSL2129AT
·AC line input voltage: 196 V to 264 V
·Output voltage: 32 V (DC) to 48 V (DC)
·Output current: 240 mA (at Vout = 40 V)
·Maximum power into LED load: 12 W
·Efficiency: > 82 %
·Power Factor: > 0.9 (at 12 W)
·THD: < 30 % (at 12 W)
·Line regulation: ± 8%
·Board dimensions: 63mm x 34mm x 25mm (internal board)
·Operating temperature: - 40 °C to +100 °C
·Mains harmonics: IEC61000-3-2
·EMC compliancy: IEC55015
ON NCL30082 LED 驱动：
·Quasi−resonant Peak Current−mode Control Operation
·Primary Side Sensing (no optocoupler needed)
·Wide VCC Range
·Source 300 mA / Sink 500 mA Totem Pole Driver with 12 V Gate Clamp
·Precise LED Constant Current Regulation 1% Typical
·Line Feed−forward for Enhanced Regulation Accuracy
·Low LED Current Ripple
·250 mV ±2% Guaranteed Voltage Reference for Current Regulation
· ~ 0.9 Power Factor with Valley Fill Input Stage
·Low Start−up Current (13 ｕA typ.)
·Analog or Digital Dimming
·Thermal Fold−back
·Wide Temperature Range of −40 to +125 C
TI LM3445 LED 驱动：
·Drop-in compatibility with PWM and Phase dimmers
·Line injection circuitry enables PFC values greater than 0.95
·Adjustable LED current and switching frequency
·Flicker free operation
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