Wireless energy transmission circuit, energy transmission control method and laser radar

Abstract

The invention provides a wireless energy transmission circuit, an energy transmission control method and a laser radar. The wireless energy transmission circuit comprises an energy transmitting part and an energy receiving part, wherein the energy transmitting part is used for generating an alternating electromagnetic field; the energy receiving part is used for generating an output voltage according to the alternating electromagnetic field, the energy receiving part comprises a rectification unit, the rectification unit comprises a plurality of switch elements, and the plurality of switch elements can perform controllable rectification. Through the technical scheme of the invention, the wireless energy transmission efficiency can be improved, and the energy loss of the laser radar is reduced, so that the temperature and the generated heat during the operation of the laser radar are greatly reduced, and the heat dissipation and the stability of the laser radar are facilitated.

Description

technical field [0001] The invention relates to the field of laser radar, in particular to a wireless energy transmission circuit, an energy transmission control method and laser radar. Background technique [0002] For the rotary laser radar, the internal optical transmitting end circuit / optical receiving end circuit and the power supply circuit of the external power supply are located on different circuit boards, and need to supply power for the optical transmitting end circuit / optical receiving end circuit. Therefore, a A wireless energy transmission circuit for transmitting DC voltage. [0003] The energy transmission efficiency of the wireless energy transmission circuit is very important for lidar, because the optical transmitter circuit / optical receiver circuit requires a lot of energy. If the wireless energy transmission efficiency is not high, the energy will spread to the inner space of the radar in the form of heat, causing The increase in internal temperature ha...

AI Technical Summary

Problems solved by technology

[0003] The energy transmission efficiency of the wireless energy transmission circuit is very important for lidar, because the optical transmitter circuit / optical receiver circuit requires a lot of energy. If the wireless energy transmission efficiency is not high, the energy will spread to the inner space of the radar in the form of heat, causing The increase in internal temperature has a great negative impact on the normal operation and thermal design of the lidar

For example, the upper limit of the operating temperature of most chips inside the lidar is only 125°C. If the internal temperature of the lidar is higher than this temperature for a long time, the probability of chip failure will increase significantly.

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