I would like to characterize the power transfer efficiency of a wireless power transfer system.
The setup: Two spiral inductors strongly coupled and connected to a half wave rectifier where the diode is home-made.
When the load R (kOhm) and C connected, the DC output power is easy to measure.
However, I am trying to measure the input power accurately. Is it possible to do that using this new software?
We have E5061B-005.
Freq 1-10MHz, 10mW power range
Challenge: the impedance of the system is not 50 ohm and changing since the diode is turning on/off.
- measure input voltage
- amplify/measure the current using a small resistance and opamp.
- correct the phase of the measured current signal ( remove the delay introduced by the amplifier)
- Input power (t) = Vin(t) x Iin(t)
- calculate the average input power.