Preface
Entering the modern society, lighting, industrial production, life and entertainment are inseparable from the demands of electricity, entering the era of electricity for more than 100 years of history, people's pursuit of power conversion and storage has never stopped. How to store electric energy efficiently for a long time and use high-power appliances in an outdoor environment far from the grid is the core issue of every manufacturer in the field of energy storage.
In the early days, people mainly used gasoline and diesel generators, lead-acid battery energy storage power supplies, automobile inverters, etc., but the three have their own inconveniences, such as: "gasoline and diesel generators are noisy, lead-acid battery energy storage density is low, and the efficiency of automobile inverters is low, and it may lead to many problems such as car power loss and inability to start." In order to solve the problem of outdoor electricity, a new generation of outdoor power supply came into being, most of the new outdoor power supply uses high energy density lithium iron phosphate \ ternary lithium battery, high energy density, and small footprint, and equipped with fast charging panel, 220V inverter module, directly solve the problem of consumers' outdoor light electricity.
Summary of application cases of outdoor power supply protocol chips
If the power station is to be equipped with a fast charging panel, it must have a built-in fast charging protocol chip. When sorting out the dismantling cases of outdoor power stations from January to March, the charging head network found that the four protocol chips of Yingjixin and Nanxin Technology entered the supply chain of Baikelong and DJI respectively, helping the efficient output of products. Some of the parameters of the four protocol chips that appear in the article are shown in the figure, and the following editor will introduce them to you in detail.
Baikelon 2200W 1536Wh outdoor power supply
The Beclon E1500 LFP outdoor power station adopts a flame-retardant shell with orange TPU anti-collision corners, which are eye-catching and play a protective role. The side of the power station is equipped with a display, AC charging input and inverter output, solar charging input, USB-C and USB-A output interfaces. The power station has a built-in 1536Wh lithium iron phosphate battery, with 2200W output power, and the USB-C interface supports 100W PD fast charging, with strong output performance.
Related Reading:
Teardown report: Baikelon 2200W 1536Wh outdoor power supply
Protocol chip application case
Yingjixin IP6559
Yingjixin IP6559 is a synchronous buck-boost controller with integrated protocol function, which can work normally when the input voltage is lower, higher or equal to the output voltage, and combines the independent protocol chip and buck-boost controller in the traditional buck-boost scheme into one, shortening the product development cycle and reducing costs.
This chip supports 100W fast charging output, supports USB-A and USB-C dual interfaces, supports Huawei FCP, SCP, supports Samsung AFC, supports OPPO's VOOC, supports PD3.0 fast charging protocol, supports PPS, and outputs up to 20V5A 100W, which can realize rich fast charging support for all interfaces, QFN-48 package.
Yingjixin IP6538
Yingjixin IP6538 fast charging SOC buck chip, integrated synchronous buck converter, support USB PD3.0 fast charging, support QC2.0/3.0, support Huawei FCP/SCP fast charging protocol, support Samsung AFC fast charging, support VOOC fast charging and SFCP fast charging. The built-in upper tube conduction resistance is 9 mOhm, the lower tube conduction resistance is 8 mOhm, and the working frequency is fixed at 150KHz.
The chip supports 32V working voltage and 40V input withstand voltage, which meets the application of USB PD fast charging multi-port step-down and 24V car charging. The chip has built-in input over-voltage, input under-voltage, and output over-current/short-circuit protection, and supports overtemperature protection function. The data pin has built-in over-voltage protection, withstand voltage of 30V, effectively prevents damage to the finished product caused by damaged data cables, and is packaged in QFN-32.
Yingjixin IP6505T
Yingjixin IP6505T step-down converter with integrated synchronous switch and supports 10 output fast charging protocols, providing a complete solution for on-board chargers, fast charging adapters, and intelligent power strips; The chip has an input voltage range of 10.5V to 28V and an output voltage range of 3V to 12V, and can provide a maximum output power of 24W, which can automatically adjust the output voltage and current according to the recognized fast charging protocol, and is available in an ESOP8 package.
大疆2200W 1024Wh户外电源Power 1000
THE DJI POWER 1000 COMES IN A LOW-PROFILE GRAY HOUSING WITH HANDLES ABOVE THE SIDES. The front of the outdoor power station is equipped with a display panel and connection interface, and there are cooling fans on both sides to dissipate heat from the inverter module. The power station has a built-in 1024Wh lithium iron phosphate battery, bidirectional inverter supports 1200W charging input and 2200W inverter output, USB-C port supports 140W fast charging, and SDC interface supports DJI aircraft battery fast charging.
Related Reading:
Perfectly matched with the drone, DJI 2200W 1024Wh power 1000 dismantling
Protocol chip application case
Nanxin Technology SC9712A
Nanxin Technology SC9712A is a dual-port fast charging protocol chip, with integrated synchronous step-down controller, supporting USB PD fast charging and a variety of fast charging protocols, supporting 36V input voltage and 7A output current, supporting PD3.1 140W fast charging output, switching frequency 80-600KHz can be set, using QFN-32 package.
The chip has output over-voltage protection, output under-voltage protection, over-current protection, short-circuit protection, over-temperature protection and other protection functions, supports external resistors to set output power, and supports fast charging output display.
Nanxin Technology SC2021A
Nanxin Technology SC2021A is a highly integrated Type-C/PD and DPDM fast charging controller. In line with the latest Type-C and PD 3.0 standards, the chip supports a proprietary high-voltage fast charging protocol, including a set of USB-C ports and two sets of DPDM interfaces, meeting the needs of 1A+1C dual-port fast charging applications, and using QFN-32 package.
Summary of the charging head network
Looking at the overall development of outdoor power supply, it is not difficult for us to find that from the earliest generator to the lead-acid energy storage power supply with built-in inverter, and then to the outdoor power supply integrating lithium battery, fast charging panel and high-efficiency inverter, the overall industry is developing in the direction of miniaturization, high efficiency and low noise.
The above-mentioned Yingjixin and Nanxin Technology's multiple chips integrate a variety of fast charging protocols and related control logic, and several chips integrate step-down controllers, one core is multi-functional, with higher efficiency, and the number of peripheral components is minimized under the premise of maintaining strong performance, helping the two outdoor power supply products of Baikelon and DJI to support the 100-watt multi-port fast charging function.