Unmanned aerial vehicle power device

The utility model provides an unmanned aerial vehicle power device, which is applicable to the field of power supply. The unmanned aerial vehicle power device comprises a power supply module, a digital steering engine voltage module, two constant-voltage output modules and a variable voltage module, wherein the power supply module utilizes multi-channel output of a lithium battery and independent filtering and is used for supplying power for a GPS (global positioning system) self-driving device and an image/data device stably, the digital steering engine voltage module utilizes a double step-down chips to realize double-channel power supply constant-voltage filtering output and provides working power to a digital steering engine, the two constant-voltage output modules supply power to vehicle mounted devices through a filtering circuit, and the variable voltage module meets voltage requirements of different vehicle mounted devices through the step-down chips. The unmanned aerial vehicle power device utilizes a single battery pack to meet requirements of different devices by means of voltage reduction through the relevant integrated chips, so that cost is reduced while reliability is enhanced. Simultaneously, the lithium ion batteries adopting the latest technology are utilized so that weight is reduced while flying load of the unmanned aerial vehicle is increased. Reliability of the unmanned aerial vehicle power device is strengthened by means of double-redundancy power supply.