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Widely used in automotive electronics, new energy, industrial and consumer electronics
应用领域
广泛应用于汽车电子、新能源、工业及消费电子领域
应用领域
广泛应用于汽车电子、新能源、工业及消费电子领域
Application of MOSFET in Portable Energy Storage
2024.05.17
1、Introduction to Portable Outdoor Power Supply
Portable power station is a multi-functional portable AC and DC emergency power supply device, which is a multi-functional portable energy storage power supply with a built-in lithium-ion battery, which can store power and has AC output. The product is lightweight, high capacity, high power, easy to carry, and can be used indoors and outdoors. It can be used for conventional charging or solar charging depending on the usage situation. It can provide ultra-high power AC output of 100-240V AC and is equipped with a variety of DC voltage outputs such as 5V/9V/12V.
With the improvement of living standards, outdoor sports have been integrated into our lives. Because of the enrichment of outdoor forms, not only the electricity consumption of conventional equipment such as electronic and digital devices, but also the use of on-board products and low-power home appliances as self-driving tours are gradually applied to the outdoors.
The application scenarios of outdoor power supply mainly include: outdoor camping, long-distance self-driving, home power backup, mobile office, short trips, and even stall lighting, emergency repair and rescue, car emergency start, etc.
Advantages of outdoor power supply: leading the industry trend, small size, light weight, and easy to carry.
Introduction to outdoor power interface and its functions
12V cigarette lighter port: car charger DC 5.5, 3.3mm, ports: laptop, mobile hard drive case, projector, electronic refrigerator, digital photo frame, portable DVD, printer, etc.
USB/Type-c ports: smartphones, tablets, smartwatches, digital cameras, projectors, e-readers, etc.
AC port: camping light, small rice cooker, small kettle, small table lamp, fan, juicer and other low-power home appliances.
2、Outdoor Power Market Analysis
Outdoor power supply is rising rapidly in China's consumer market, and the market potential is huge. According to the statistics of Gaogong Lithium Energy, in 2021, the portable energy storage industry shipped about 4.838 million units globally, a year-on-year increase of 131.7%, and the sales amount reached 11.13 billion yuan, a year-on-year increase of 161.3%. The China Chemical and Physical Power Industry Association predicts that global portable energy storage shipments will rise from 4.84 million units in 21 to 31.1 million units in 26, and global shipments will exceed 30 million units by 2026, with a market size of more than 80 billion yuan and broad market demand.
According to CCTV finance, outdoor power supply is one of the fastest-growing categories in emerging industries, three years ago it was a very small category, with only one or two outdoor power supply brands and a small turnover. During Tmall 618 in 2021, the turnover of the leading brands of outdoor power supplies has rushed to the top 10 in the 3C digital accessories industry, with a growth rate of more than 300% in the past three years. JD Business Intelligence data also shows that the growth rate of outdoor power turnover exceeds 358%.
3、Product Application and Advantages
INV+Fly back Charge
DC-DC
DC-AC
Radicalization
Bi-directional PSFB or CLLC + Totem PFC
DC-DC
DC-AC
For the application of the portable energy storage market, Lonten Semiconductor's high-voltage SJMOS, its product advantages:
For QR flyback topology, optimize the switching speed, making it easier to pass EMI testing;
For the resonant topology, the body diode is optimized to enhance the di/dt capability and reduce Qrr and driving interference.
Optimize the ratio of Qg and Coss/Ciss to reduce drive loss and improve drive anti-interference ability.
Optimized EAS to enhance avalanche resistance.
For portable energy storage applications, Lonten Semiconductor's SGTMOS, its product advantages:
Optimized Qg and Vth, low turning voltage can match most synchronous rectifier chips;
Optimize Coss and Rdson to reduce switching and conduction losses to a greater extent, and reduce temperature rise.
The above advantages make the application of Lonten products simple for portable energy storage.
Note: The above data is from Lonten Semiconductor, please indicate the source for reprinting.
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