Table 2: Calculations of power conversion and link efficiencies.

FrequencyConversion efficiency (through class E converter and link), η conv = 𝑃 s e c o n d a r y / 𝑃 a m p Drain efficiency, η drainLink efficiency, η link = η conv/η drainLoad efficiency excluding regulator and gate drive losses, η load_net = 𝑃 l o a d / 𝑃 a m p Load efficiency excluding regulator but including gate drive losses, η load_driver = 𝑃 l o a d / 𝑃 d r i v e r Overall system efficiency, η system = 𝑃 l o a d / 𝑃 i n