ELECTRONIC GOVERNOR AND DETECTION METHOD, AND CIRCUIT AND UNMANNED AERIAL VEHICLE

WIPO Patent Application WO/2021/232401

A1

Provided are an electronic governor and a detection method, and a circuit and an unmanned aerial vehicle. In the embodiments of the present application, the electronic governor comprises a control circuit and a three-phase full-bridge circuit. Lower-bridge power transistors in any two phases of the three-phase full-bridge circuit are connected in series with sampling resistors and are then grounded, and a lower-bridge power transistor in the other phase thereof is directly grounded. The control circuit can monitor electrical signals on a line for connecting the sampling resistors in series, and determine an operating state of the electronic governor and/or a three-phase electric motor according to the electrical signals. In the embodiments of the present application, the control circuit only needs to be electrically connected to non-grounding ends of the sampling resistors in two phrases to be able to complete the detection of the operating state of the electronic governor and/or the three-phase electric motor, such that the occupation of ports of a control chip in the control circuit is reduced, facilitating solving the problem of the number of ports of the control chip being insufficient.

MA CHENXU (CN)
CHEN HONGBIN (CN)
CHEN XU (CN)

PCT/CN2020/091765

November 25, 2021

May 22, 2020

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SZ DJI TECHNOLOGY CO LTD (CN)

B64F5/60; G01R31/00

CN109606730A	2019-04-12
CN105905307A	2016-08-31
CN110341984A	2019-10-18
CN107422259A	2017-12-01
CN108828490A	2018-11-16
US20190383870A1	2019-12-19

TEKYRS INTELLECTUAL PROPERTY INC. (CN)

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