Full analysis of AC-DC chip application scenarios: from daily consumption to technological penetration at the forefront of industry
As the core component of power conversion, AC-DC chips have a wide range of application scenarios covering consumer electronics to industrial equipment. This article combines the characteristics of chip technology and market demand to outline the typical application scenarios and representative products of AC-DC chips for you.
1、 Consumer Electronics: High Frequency Demands and Energy Efficiency Upgrades
Mobile phone/laptop adapter
Typical chips: PI InnoSwitch series, Southchip SC3056
Application scenario: Supports PD fast charging protocol, achieves high power density design of 65W/100W, gallium nitride (GaN) technology reduces adapter volume by 50%, standby power consumption is less than 30mW, and meets level six energy efficiency standards.
Smart home appliance
Typical chips: Xinpeng Micro SM7022, Jiehuate JW1550
Application scenarios: Air purifiers, floor cleaning robots, and other devices require 5V/12V multi-channel output, with integrated high-voltage start and protection functions on the chip, at a cost of less than $0.5, suitable for low-cost needs in the home appliance industry.
Router/set-top box
Typical chips: Jingfeng Mingyuan BP6216, Infineon ICE2PCS01G
Application scenario: High precision constant voltage output (± 3%) and low standby power consumption are required. The chip supports wide voltage input (90-264VAC) and adapts to global power grid standards.
2、 Industrial and commercial equipment: high reliability and wide temperature adaptability
industrial power supply
Typical chips: Texas Instruments UCC28780, ON Semiconductor NCP13992
Application scenario: PLC controllers and motor drivers need to support CCM/QR/DCM multi-mode, with built-in overvoltage/overcurrent protection on the chip, capable of withstanding a wide temperature range of -40 ℃ to 125 ℃, and MTBF exceeding 100000 hours.
Communication base station
Typical chips: Infineon CoolSET series, Jewate JW1550
Application scenario: The power supply of 5G base stations requires a conversion efficiency of over 95%. The chip integrates PFC+LLC two in one control to meet the energy efficiency of 80Plus titanium alloy and reduce operating costs.
LED lighting
Typical chips: Ansenmei NCP1342, Xinpeng Micro SM7505
Application scenarios: Street lamps and commercial lighting require high power factor (PFC>0.95), the chip supports valley opening technology, excellent EMI performance, and prolongs the lifespan of the lamps.
3、 Automotive Electronics: Safety Certification and Extreme Environments
Car charger (OBC)
Typical chips: Infineon CoolSET CE, Nanxin SC3056 Automotive Standard Edition
Application scenario: AEC-Q100 certification is required, the chip has a built-in 1200V SiC MOSFET, supports bidirectional charging and discharging, with an efficiency of 96%, and is suitable for automotive grade temperature ranges from -40 ℃ to 105 ℃.
Automotive Electronic Control Unit (ECU)
Typical chips: Texas Instruments UCC28910, Jewat JW1515
Application scenario: The vehicle body controller and ADAS system require high reliability power supply, chip integrated digital control interface, anti-interference ability up to ESD 8kV, and meet ISO 26262 functional safety standards.
4、 Emerging fields: technology integration and scenario innovation
Data center power supply
Typical chips: JW1550 from Jiehuate, BP8706D from Jingfeng Mingyuan
Application scenario: The server power supply requires a power of over 1kW, and the chip supports high-frequency (1MHz) GaN driving with a power density of 0.5W/cm ³, helping to reduce the PUE value to below 1.1.
IoT devices
Typical chips: Yingjixin IP2736, Xinpeng Micro SM7012
Application scenarios: Smart door locks and sensors require ultra-low standby power consumption (<10mW), chip integration supports multiple protocols (Bluetooth/Wi Fi), and extends battery life to over 5 years.
medical equipment
Typical chips: ON Semiconductor NCP13992, Texas Instruments UCC28780
Application scenario: Ventilators and imaging equipment require high-precision isolated power supply, with chips that meet medical safety standards (IEC 60601), leakage current<100 μ A, and anti-interference ability up to 4kV EFT.
5、 Selection logic: from scenario requirements to technical matching
Power level:
Low power (<75W): flyback chips (such as SM7022) have the best cost;
High power (>100W): LLC resonant chips (such as JW1550) have higher efficiency.
Energy Efficiency Standards:
Consumer electronics: Level 6 energy efficiency (standby power consumption<75mW);
Industrial equipment: 80Plus titanium (efficiency>96%);
Automotive Electronics: AEC-Q100 certification.
Special requirements:
Fast charging: Gallium nitride encapsulated chip (such as SC3056);
Extreme environment: automotive grade chips (such as CoolSET CE);
Digitization: Chips integrated with ARM cores (such as UCD3138).
6、 Future Trends: Energy Efficiency Revolution and Intelligence
Energy efficiency standard upgrade:
DOE VI and CoC V5 Tier 2 requirements promote the evolution of chip efficiency towards 98%, and silicon carbide (SiC) materials are gradually becoming popular.
Function integration:
The protocol chip (such as IP2736) integrates a multi port power allocation algorithm and supports USB-PD 3.1 240W output.
Intelligence:
Digital control chips (such as UCD3138) achieve remote parameter tuning through I2C interface, reducing maintenance costs.
The application scenarios of AC-DC chips are expanding from traditional consumer electronics to high value-added fields such as industry, automotive, and data centers. With the application of new materials such as gallium nitride and silicon carbide, as well as the integration of digital and intelligent technologies, the future power supply design will show a trend of higher efficiency, smaller size, and stronger scene adaptability.