temporysing
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I'm currently working on a wireless battery charger circuit.I need some help figuring out why I have a particular problem and any means of solving it.
In the attached simplified schematic, you will see a PLL controlling pulsed charging of a battery which is powered by a class E supply, regulated and through a buck boost to keep voltage stable at 5V. I need help eliminating the back powering from the battery to the buck boost which is creating a voltage which resembles a pulse on top of a DC value of 4.8V(pulse is of amp. 0.2V) at the point labelled as A.
I need to use a switch but I cannot afford to have a voltage drop across it.
Any ideas will be appreciated.
In the attached simplified schematic, you will see a PLL controlling pulsed charging of a battery which is powered by a class E supply, regulated and through a buck boost to keep voltage stable at 5V. I need help eliminating the back powering from the battery to the buck boost which is creating a voltage which resembles a pulse on top of a DC value of 4.8V(pulse is of amp. 0.2V) at the point labelled as A.
I need to use a switch but I cannot afford to have a voltage drop across it.
Any ideas will be appreciated.