• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 62 subscribers
  • Views 437 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ500412 Input waveform to coils

Kanav Batra
Prodigy 70 points
Other Parts Discussed in Thread: BQ500412

Hi,

I am doing a project on wireless charging using the BQ500412, where I am trying to implement the coil on the PCB as trace inductance. 

Under the A6 guideline, the inductance on the PCB needs to be 12.5uH for 1 coil. I need to carry out simulations to ensure that the right power is being outputted. Could I please get the input waveform to the coils in BQ500412 from the Power Mosfet ? 

Also, is there another way for me to drive the coil instead of using the recommended Power Mosfet in order to make the circuitry simpler?

Kind regards,

Kanav Batra

  • 0
    Prodigy 70 points
    Hello,

    From what I understand from the WPC guide, a 12V signal goes through a half bridge inverter which then drives the series circuit of the capacitor and inductor.

    Is there a simpler controller circuit/chip that can be derived for the half bridge inverter circuit ?
    Also, in the Bq500412 evm, which point provides the constant 12V signal which is then converted to an AC signal?
    And lastly, what is the value/waveform of the AC signal going into the series combination of the capacitor and inductor ?

    It would be great if I could get a reply to this.