瑞萨R8C系列HRB0502A-JTR-E单片机的变频荧光灯技术解决方案

iczoom188

单片机(Microcontrollers)是一种集成电路芯片，是采用超大规模集成电路技术把具有数据处理能力的中央处理器CPU、随机存储器RAM、只读存储器ROM、多种I/O口和中断系统、定时器/计数器等功能(可能还包括显示驱动电路、脉宽调制电路、模拟多路转换器、A/D转换器等电路)集成到一块硅片上构成的一个小而完善的微型计算机系统，在工业控制领域广泛应用。从上世纪80年代，由当时的4位、8位单片机，发展到现在的300M的高速单片机。
https://www.iczoom.com/quotation/sof-sdesc-b-p-q-c-m-1-10.html?param=

　　方案描述：

　　Renesas product lineup includes the R8C Family of 8/16-bit MCUs with on-chip PWM (Pulse Width Modulation) generation and output functions. In particular, the 78K0 Series and the R8C/2x Series of MCUs integrate dimmer inverter control, PFC (Power Factor Correction) on/off control, and DALI communication functions, and are ideal for inverter fluorescent lamp applications such as ceiling-recessed fixtures that are compact and lightweight while consuming little power. In contrast to the conventional glow starter florescent lamps, inverter fluorescent lamps employ inverter technology which boost the switching frequency to more than 10,000 times per second, thus making a glow starter unnecessary. They also eliminate flicker and unpleasant buzzing while consuming 20% to 30% less power, thus making them more eco-friendly than the conventional lamp type. In addition, the inverter circuit can be used to adjust the light level. This is suitable for high-grade lighting fixtures and provides additional value. Recently, DALI　(Digital Addressable Lighting Interface) systems employing multiple lamps have been developed.

方案关键器件表：

类型	型号	厂商	说明
MCU	R5F21276SDFP#U0	Renesas	IC R8C/27 MCU FLASH 32LQFP
PFC IC	R2A20113A	Renesas	Suitable for low power devices, secondary coil unnecessary
Schottky barrier diode	HRB0502A	Renesas	3-terminal face-mount outline (low VF)
Photocoupler(IGBT drive) for high voltage MOS	PS9306 (6p-SDIP)PS9506 (8p-DIP)	Renesas	High isolation voltage (5 kV r.m.s.), 0.6 A output ；High CMR (CMR = 25 kV)

　　型号 HRB0502A-JTR-E

　　品牌 RNS

　　数量 18000

　　美元单价 $0.1995

　　人民币单价 (含税17%)

　　最小起订量1000

　　最小包装 1

　　交货地 香港

交期 10(天)