300W Wi-fi Energy Switch Reference Design

The 300W Wi-fi Energy Switch system is designed for powering units corresponding to drones and EVs, reaching over 90% effectivity with a compact design.

Wi-fi Energy Switch (WPT) expertise is gaining prominence because of its potential to offer energy with out bodily connections, providing varied benefits throughout varied purposes. By eliminating the necessity for cables, WPT enhances comfort, security, and sturdiness, making it significantly useful for units requiring frequent charging or working in hazardous situations. It additionally permits for higher design flexibility and helps superior cellular and difficult-to-access purposes. The 300W Wi-fi Energy Switch reference design by Microchip features a Energy Transmitter and a Energy Receiver. 

The transmitter’s design makes use of the WP300TX01 gadget, whereas the receiver employs the WP300RX01 gadget. This 300W system is completely suited to varied purposes, together with energy instruments, vacuum robots, industrial slip rings, small electrical autos, and drones. The transmitter usually attracts energy from a 24V rail, and the receiver outputs a regulated voltage of 24V. The system achieves over 90% effectivity at 300W energy and operates with a 5-10 mm Z-distance.

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The 300W electromagnetic inductive wi-fi electrical energy transmission purposes embody varied makes use of, corresponding to e-bikes, drones, energy instruments, robotic vacuum cleaners, and lawnmowers. Moreover, it might energy 5G routers, underwater lighting, and varied in-vehicle purposes. This expertise can also be adaptable for shopper electronics, together with laptops.

The system options embody a nominal DC enter voltage of 24V, with an working vary of 11V to 37V. It affords as much as 90% effectivity at an influence output of 300W. Security options embody international object detection, NFC/RFID card detection, enter overvoltage and Undervoltage safety, and overcurrent and overtemperature safety. The utmost output energy of the receiver can attain as much as 300W, with a most present of 8.5A. The nominal output voltage of the receiver is about at 24V, however it may be adjusted from 12V as much as 36V. Optimum effectivity is achieved when the DC enter and receiver output voltage are carefully aligned.

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When activated, the system transmits receiver data and suggestions to the transmitter, making certain environment friendly communication between parts. Moreover, the system contains overpowering safety to stop injury from extreme energy supply. It additionally gives a regulated DC output voltage, sustaining steady and secure operation throughout varied purposes.

The 300W Energy Transmitter is designed to interface with a removable OLED board, using the SPI communication protocol for knowledge alternate between the transmitter and the board. The following part features a desk detailing the OLED display and displayed knowledge. This data is meant primarily for board debugging functions. For OLED board will not be essential for the ultimate answer.

Microchip has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) format, and extra. The corporate’s web site has extra knowledge in regards to the reference design. To learn extra about this reference design, click on right here.