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Wireless charging PCBA solution type introduction

2021-04-21

Wireless charging PCBA solution type introduction

Shangsen wireless charging PCBA technology sharing

Shangsen currently has three types of highly integrated wireless charging PCBAPCBA solutions. The first is the SoC solution, which is simply integrated MCU and driver devices; the second is the power full-bridge solution, which integrates the driver and MOS, and works with MCU master control. To use. And with the needs of market development, the wireless charging PCBA power bank market has gradually emerged, so a third brand-new highly integrated wireless charging PCBA power bank solution has been derived. The three highly integrated solutions all have the advantages of simple peripherals, low BOM cost, and ease of rapid development and marketing.

1. Wireless charging PCBASoC chip solution

SoC stands for System on a chip, which refers to the integration of a complete system on a single chip. At present, the definition of a relatively common SoC solution is: SoC is the integration of main control and driver. But there are also voices that this statement is not accurate, and that the main control, driver, and MOS are fully integrated as the real SoC. The SoC mentioned below is based on the first argument for the time being.

According to incomplete statistics from the charging head network, there are currently 18 chip manufacturers that have launched SoC wireless charging PCBAPCBA solutions. There are as many as 62 chip models, covering 5W, 10W, 15W, 20W, 30W, 50W, 100W and other power levels. It is worth mentioning that there are some chips that support the "one-core dual-charge" function.

2. MCU master control + PowerStage intelligent power full bridge solution

The MCU master + PowerStage intelligent power full bridge solution is different from the SoC in that the PowerStage intelligent power full bridge of this type of solution integrates the driver and MOS into one, and the advantages of the two are different. Regarding this kind of scheme, we can understand it as a kind of scheme that MCU transitions to fully integrated SoC.

According to incomplete statistics from the charging head network, there are currently 10 chip manufacturers that have introduced MCU master + PowerStage intelligent power full-bridge solutions, with as many as 39 chip models.

3. Full protocol wired fast charging + wireless charging PCBA mobile power solution

Full protocol wired fast charging + wireless charging PCBA power bank solution currently has two main forms, one is the design of mobile power SOC and wireless charging PCBASOC separately, the development of two chips complete wireless charging PCBA power bank; the other It directly combines two SOC chips into one to achieve a higher integration design. Both of these solutions can greatly reduce the number of components on the PCB board and save development costs.

The charging head network learned that at present, Yingjixin has launched a single-chip highly integrated wireless charging PCBA power bank solution IP5568, which supports 22.5W full protocol wired fast charging and 15W wireless charging PCBA power transmission functions. In addition, Zhirong has also developed a set of SW6208+SW5100 solutions for the wireless charging PCBA power bank market. SW6208 is mainly responsible for full protocol mobile power control with a maximum power of 22.5W, and SW5100 is mainly responsible for wireless charging PCBA power transmission control. , Support maximum 15W transmit power.