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[原创] Infineon ICE5AR4770AG 15W变频空调辅助电源解决方案

关键词:电源管理 开关电源 AC/DC转换器 变频空调

时间:2019-07-03 11:09:25       来源:中电网

infineon公司的ICE5AR4770AG是第五代固定频率集成电源集成电路(CoolSET™),特别适合于级联配置的离线开关电源.CoolSET™封装有两个单独的芯片:一是控制器芯片,另一个是700 V/ 800 V CoolMOS™芯片.级联配置有助获得较快的起动.而软栅极驱动的降频和频率抖动运行提供了更低的EMI和轻负载和50%负载间的更好的效率.产品有宽的工作范围(10.0 ~ 25.5 V)和更低的功耗.众多的保护功能和可调火线过压保护支持故障状态下的电源系统.器件集成了700 V/ 800 V强健的CoolMOS™芯片,增强的有源突变模式最低待机功耗小于100mW,数字频率降低得到更好的系统效率,集成了误差放大器,无铅电镀,无卤模塑料和RoHS兼容,所有保护都是重新起动模式.主要用在家用电器/白色家电,TV,PC和服务器的辅助电源,蓝光播放器,机顶盒和LCD/LED监视器.本文介绍了ICE5AR4770AG产品亮点和主要特性,框图和应用电路,变频空调系统框图,以及采用ICE5AR4770AG的15W变频空调辅助电源主要指标,电路图,材料清单和PCB设计图.

The ICE5xRxxxxAG is the 5th generation of fixed frequency integrated power IC (CoolSET™) optimized for off-line switch mode power supply in cascode configuration. The CoolSET™ package has 2 separate chips inside; one is controller chip and the other is a 700 V/ 800 V CoolMOS™ chip. The cascode configuration helps achieve fast startup. The frequency reduction with soft gate driving and frequency jitter operation offers lower EMI and better efficiency between light load and 50% load. The selectable entry and exit standby power ABM enables flexibility and ultra-low power consumption at standby mode with small and controllable output voltage ripple. The product has a wide operating range (10.0 ~ 25.5 V) of IC power supply and lower power consumption. The numerous protection functions with adjustable line over voltage protection support the power supply system in failure situations. All these make the 5th generation CoolSET™ series an outstanding integrated power stage fixed frequency flyback converter in the market.

ICE5AR4770AG产品亮点:

 Integrated 700 V/ 800 V avalanche rugged CoolMOS™
 Enhanced Active Burst Mode with selectable entry and exit standby power to reach the lowest standby power <100 mW
 Digital frequency reduction for better overall system efficiency
 Fast startup achieved with cascode configuration
 Frequency jitter and soft gate driving for low EMI
 Integrated error amplifier
 Comprehensive protection with input line over voltage protection
 Pb-free lead plating, halogen-free mold compound, RoHS compliant

ICE5AR4770AG主要特性:

 Integrated 700 V/ 800 V avalanche rugged CoolMOS™
 Enhanced Active Burst Mode with selectable entry and exit standby power
 Digital frequency reduction for better overall system efficiency
 Fast startup achieved with cascode configuration
 DCM and CCM operation with slope compensation
 Frequency jitter and soft gate driving for low EMI
 Built-in digital soft start
 Integrated error amplifier to support direct feedback in non-isolated flyback
 Comprehensive protection with input line over voltage protection, VCC over voltage, VCC under voltage, overload/open loop, over temperature and Current Sense (CS) short to GND
 All protections are in auto restart mode
 Limited charging current for VCC short to GND

ICE5AR4770AG应用:

 Auxiliary power supply for home appliances/white goods, TV, PC & server
 Blu-ray player, set-top box & LCD/LED monitor

图1.ICE5AR4770AG框图

图2.采用TL431和光耦器件的ICE5AR4770AG隔离反激应用电路图

图3.采用集成误差放大器的ICE5AR4770AG非隔离反激应用电路图

采用ICE5AR4770AG的15W变频空调辅助电源

With the growing household trend for internet-connected devices, the new generation of home appliances including air-conditioners are equipped with advanced features such as wireless control and monitoring capability, smart sensors and touch screen display. These can transform a static product into an interactive and intelligent home appliance, capable of adapting to the smart-home theme. To support this trend, Infineon has introduced the latest fifth-generation FF CoolSET™ to address this need in an efficient and cost-effective manner.

An auxiliary SMPS is needed to power the various modules and sensors, which typically operate from a stable DC voltage source. The Infineon CoolSET™ (as shown in Figure 1) forms the heart of the system, providing the necessary protection and AC-DC conversion from the mains to multiple regulated DC voltages to power the various blocks.


图4.变频空调系统简化框图

图5.15W变频空调辅助电源REF_5AR4770AG_15W1外形图

REF_5AR4770AG_15W1主要指标:


图6.REF_5AR4770AG_15W1电路图

REF_5AR4770AG_15W1材料清单:



图7. REF_5AR4770AG_15W1变压器架构图

图8. REF_5AR4770AG_15W1 WE变压器指标图

图9. REF_5AR4770AG_15W1 PCB设计图(顶层)

图10. REF_5AR4770AG_15W1 PCB设计图(底层)

详情请见:
https://www.infineon.com/dgdl/Infineon-ApplicationNote_ReferenceDesign_REF_5AR4770AG_15W1_15W_auxiliary_power_supply_CoolSET-AN-v01_00-EN.pdf?fileId=5546d462689a790c0169398e243065c0
https://www.infineon.com/dgdl/Infineon-ICE5xRxxxxAG-DS-v02_20-EN.pdf?fileId=5546d462602a9dc801607d6123c745a6
Infineon-ICE5xRxxxxAG-DS-v02_20-EN.pdf
Infineon-ApplicationNote_ReferenceDesign_REF_5AR4770AG_15W1_15W_auxiliary_power_supply_CoolSET-AN-v01_00-EN.pdf

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