Preface
Wireless charging uses near-field sensing, that is, inductive coupling, to send energy from the power supply device to the receiving device, which uses the received energy to charge the battery. Since the transmitter and the powered device are inductively coupled to send energy, there is no need for wires to connect the two, which is more convenient than wired charging. As early as 2009, Palm launched the first mobile phone that supports wireless charging at the CES show, which completely kicked off the application of wireless charging technology in consumer electronics.
Nowadays, wireless charging technology has penetrated into people's daily lives. Many mid-to-high-end mobile phones, TWS earphones, electric toothbrushes and other small electronic devices support wireless charging. Consumers only need to gently put the device on the charging pad to achieve efficient charging, no longer need to look for a variety of charging cables, both put and charge, that is, you can use wireless charging you can do without, but after you experience it, it is difficult to reach the wired era.
Built-in wireless charging transmitter chip outdoor power supply
Charging head network has sorted out the recent dismantling cases of outdoor power supply with built-in wireless charging transmitter chips to help readers understand its application in the field of outdoor power supply. Some of the parameters of the three wireless charging and transmitter chips that appear in the article are shown in the figure, and the detailed information and application cases will be introduced to you in detail below.
Lianzhi CWQ1000
Silk screen CFSA2 is Jiangxi Lianzhi's wireless charging transmitter chip CWQ1000, the chip is embedded with 32 for the ARM Cortex M0 core and 12-bit high-precision ADC, integrated DC-DC converter and a number of safety protection functions including foreign object detection, over-voltage protection, over-current protection, support WPC Qi 1.2.3 specification, provide 15W output power, using QFN40 package.
Application examples
Guangyu 330W portable outdoor power station
This outdoor power station has a built-in 288.6Wh lithium battery, inverter supports 330W output power, and supports PD fast charging output and wireless charging function, as well as DC interface output and cigarette lighter output, and a variety of power supply methods to meet outdoor power needs. In addition, this power station is also designed with an external charger to reduce weight, which is very convenient for short-distance travel.
Related Reading:
Teardown report: COSLIGHT 330W portable outdoor power supply
Jinxin micro CV90331
Jinxin Micro CV90331 is a highly integrated wireless charging SOC transmitter chip in QFN48 package. Support fast charging and power taking function, support PD2.0, PD3.0 and QC2.0, QC3.0 and private fast charging and power taking, support three-coil wireless charging applications. CV90331 supports WPC Qi 1.2.4 standard and supports 5-15W wireless charging transmitter.
CV90331 built-in power full-bridge driver, built-in current sampling amplification, digital decoding module and foreign object detection, built-in multi-channel ADC, provide reliable overvoltage, overtemperature and output overcurrent protection, and streamlined peripheral components.
Application examples
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
Yingjixin IP6809
Yingjixin IP6809 supports fast charging charger input, supports maximum 15W output, supports 2-3 coils, integrates NMOS drive and voltage and current demodulation, supports foreign object detection function, low static power consumption, high efficiency, compatible with NPO and CBB capacitors, and supports a variety of protection functions, compatible with WPC Qi 1.2.4 specification, and adopts QFN40 package.
Application examples
Aopeng 600W portable power station R600
This outdoor power station has a built-in 299Wh lithium iron phosphate battery with a built-in bidirectional inverter, supports 600W output power, and supports 1200W peak output power. The power station supports UPS function, which can be switched to power supply within 15ms. The power station supports AC input charging and solar charging, and is equipped with two USB-A and two USB-C ports, the USB-C port supports 100W fast charging output, and the USB-A port supports 18W fast charging output.
Related Reading:
Teardown report: Aopeng 600W portable outdoor power station R600
Summary of the charging head network
Nowadays, wireless charging technology has become an indispensable part of people's daily life, especially in the field of outdoor power supply, products with built-in wireless charging and transmitter chips are favored by consumers. These products provide users with a convenient wireless charging method and integrate safety protection functions to meet the diverse needs of outdoor electricity consumption. From Guangyu's portable outdoor power supply to Baikelong's high-performance products, and then to Aopeng's multi-functional outdoor power supply, each product is inseparable from the three wireless charging and transmitter chips mentioned in the article.
In addition to outdoor power supply, wireless charging transmitter chips are also widely used in other fields, such as wireless charging smart desks, wireless charging mouse pads, wireless charging front loading car charging, wireless charging intelligent audio and so on. These products can provide wireless charging services in homes, offices, airports, and other places, making it convenient for users to charge at any time. The development of wireless charging technology will continue to promote the emergence of various wireless charging products to provide users with a more convenient and efficient charging experience.
Some of the information in the article comes from the Internet, and is affected by the timeliness of the case, please understand if there are any omissions.