Other Parts Discussed in Thread: BQ51050B
Hi,
I've designed a BQ500212A charger circuit following the bqTESLA Schematic as closely as possible.
I've also designed a BQ51050B receiver circuit which seems to work perfectly with other Qi Chargers.
The problem arises when I test the Charger (BQ500212A) with the Receiver
We have the following observations:
1. After placing the receiver over the coil, the green starts blinking (LED Mode 2) indicating power transfer; however, it stops after 3-5seconds.
2. TX Tank voltage seems to drop to 10V peak-to-peak instead of going up
3. Consistent pulses on the RX Vrect which doesn't stop until charging fails
4. Almost no Current Flowing through the Battery (<1mA)
LED Mode is set to 2, and I have disabled the FOD functionality, but I doubt these 2 could be causing any issues.
I've already searched the forums and the product datasheets, and have had no luck resolving this issue. I would greatly appreciate help on this issue.
Thanks,
Yves
