wireless charging

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  1. S

    Charging a 4S Lipo with a wireless charger?

    Hello, I'm trying to design a power system for a desk robot. The idea is that it's kind of like a small roomba that organizes your desk before returning to a charging station. My battery (placed in the robot) is the Ovonic 1550mAh 100C 14.8V Lipo. I have 3 loads to power: 5-7V VIN to ESP32...
  2. Y

    Wireless charging via flat and cylindrical coils

    Good day! Has anyone had any experience developing wireless charging with a flat coil on the transmitter and a cylindrical coil on the receiver? It looks like it's working. With a gap of 1mm between the coils, I even got an efficiency of 57%. But with an increase in the gap, the efficiency...
  3. V

    How to detect receiver (smartphone) with a wireless charger transmitter (base)?

    My end goal is to build a circuit with a wireless charger transmitter module and a led indicator that turns on when the receiver is detected and wireless charging is occurring. I’ve been reading about the analog pings the TX uses to detect RX, Foreign Object Detection (FOD), Q-factor...
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