With the rapid development of energy storage equipment, some energy storage power products have begun to integrate wireless charging functions in their design.For example,AllPowers372WH energy storage power supply supports the wireless charging function of the maximum 10W output power, and the BESTEK energy storage power supply and the Bluetti500WH energy storage power supply also have wireless charging functions, which indicates that wireless charging has become a value -added function for portable energy storage power, which is for users.Provide more convenience.
The wireless charging function in portable energy storage power is usually achieved by integrated wireless charging transmitter. The transmitter follows a specific wireless charging standard, such asQI standards realize energy transmission through the generation and receiving of the electromagnetic field.This technology allows compatible devices to charge without physical connection. It only needs to place the device on the wireless charging area of the energy storage power supply.
At present, there are two main types of wireless charging technology. One is electromagnetic induction wireless charging. This is also the most common wireless charging method. The principle of Faraday electromagnetic induction is used.In the portable energy storage equipment, there is a launch coil (usually integrated inside the energy storage equipment). When the current passes through this coil, a variable magnetic field will be generated.
There is also a receiving coil on the back of the receiving device.When this receiving coil is close to the launch coil, the changing magnetic field will induce electromotive momentum in the receiving coil and then generate current to charge the battery of the device.
As for the magnetic field resonance technology is more advanced, it allows charging to be carried out under a larger distance and a more flexible position.This technology is also based on electromagnetic induction, but the concept of resonance is added.In the system, the transmitted end and the receiving end are adjusted to the same resonance frequency.When the transmitting coil is oscillation at a specific frequency, it not only induced the response current directly in the neighboring coil, but also transmits energy through the magnetic field in the air to the receiving coil of the same frequency.
This method can realize a long -distance wireless charging, while reducing the requirements for accurate accurate charging positions. It is suitable for portable energy storage equipment to provide a more flexible charging experience for multiple devices in the surrounding environment.
Of course, in terms of wireless charging in portable energy storage equipment, it is necessary to adapt to greater power output to meet the charging needs of different equipment, and maintain efficient and stable charging performance in the outdoor environment.A variety of equipment and charging protocols to ensure extensive compatibility.
Selection of wireless charging chips
Generally speaking, if you want to achieve wireless charging money, you need to have a transmitting end, that is, the charger. The transmitted end can generate a variable magnetic field through AC or DC electricity.That is to say, after the portable energy storage equipment is approaching, the transposition magnetic field generated by the transmitted end generates an current in the coil of the receiving end through the electromagnetic induction.
And this process requires the assistance of wireless charging chips. For wireless charging chips used in energy storage equipment, it is necessary to have functions such as energy conversion, protocol support, power output, and efficiency optimization., Intelligence, compatibility, and multi -functional integration.
At present, there are also many wireless charging chips in the market that can be applied to portable energy storage devices, such asTI's BQ25123 supports 3W output power and is suitable for wireless charging applications that meet the Rezent standard.It integrates digital control and communication functions, which can realize high -efficiency power management BQ25970, which is also TI, and has a higher power. It can support the output power of up to 6.74W. It is suitable for devices compatible with Reznce and PMA (Power Matters Alliance) standards.The CY8C95000 chip provided by CYPRESS supports the wireless charging power of up to 5W, which is suitable for equipment that meets QI standards.It has optimized power management and rich integration characteristics, and is also suitable for portable energy storage products.In addition, the T5795 of NXP supports 5W output power and is suitable for wireless charging solutions that meet the QI standard.
If you want to be greater, there are as ifST-developed STWBC-WA supports output power up to 15W, which is suitable for various standards, including QI standards.AOS's AOC5917 can also support 15W output power.
Many domestic companies have also launched corresponding solutions. These domestic wireless charging chips have different power levels and functions, which can meet diverse demand for energy storage equipment.With the advancement of technology and market demand, more innovative wireless charging solutions will be developed.
It should be noted that in portable energy storage equipment, whether the application of wireless charging technology needs to be comprehensive considerations according to specific application requirements, cost budgets, technical specifications and market trends.With the advancement of technology and standardization, wireless charging may become a more practical and widely accepted function of energy storage equipment in the future.
The current wireless charging chips usually have high -efficiency power management capabilities, good thermal management characteristics, and compatibility with various international standards.When selecting wireless charging chips, the factors that need to be considered include output power, efficiency, size, cost, and standard requirements for meeting specific markets.With the continuous development of the portable energy storage market, these chips are also evolving to meet more efficient and more convenient user needs.