Research and Design of Capsule-like Robot Wireless Powering System Based on Class-E Inverter

The power supply problem is one of the main problems facing the capsule-like robot technology. There are many issues worthy of further exploration. Such as the transmitter power and efficiency is not high, the performance can be greatly reduced when increase the using frequency, coil position stability problems and many other issues. Aiming at these problems, the paper studies on the method of improving the transmitter power, efficiency and operating frequency. This system chooses the class-E inverter as the transmitter of the inverter, make optimization design and parametric modelling of class-E inverter. This paper analyzed the transmitter circuit characteristics, parameters of actual circuit on the circuit performance. Finally, This paper tested the wireless power supply system. The test results show that, the wireless power supply system has high frequency, high power, high efficiency, and the loop current with the input power supply voltage is in linear relation, the system has good repetition.