Hi all,
We are trying to make a toy with a H-bridge motor driver. But, some of the output devices we connect to are expecting a DC input. We achieved this by placing a toroid and a capacitor across the the two arms of the full bridge motor driver circuit.The motor driver is fed a PWM signal at 200KHz.
The board receives wireless data through a CC1101 radio in the same PCB. This data controls the duty cycle of the PWM and hence the output voltage.
When the PWM is on, we are observing the radio communication via CC1101 become very unreliable (lot of bad CRCs and or missed data). This is very pronounced in forward direction. My question is what must I do to discharge noise from the motor driver circuit so that it does not affect my RF circuitry.
Any help will be appreciated
Sid
