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Patent Searching and Data


Title:
DRIVE CONTROL APPARATUS AND GIMBAL
Document Type and Number:
WIPO Patent Application WO/2022/068062
Kind Code:
A1
Abstract:
A drive control apparatus and a gimbal, which relate to the field of voltage sampling, and are used for solving the problem whereby since the voltage differences of a signal line and a power source line are different, a reference voltage of the signal line is raised, such that a negative voltage occurs in a digital signal, and a drive chip is thus at risk of being damaged when in a negative voltage for a long time. The drive control apparatus comprises: a first circuit board (20) and a second circuit board (30), wherein a first group of wires (104) and a second group of wires (102) are connected between the first circuit board (20) and the second circuit board (30); the first group of wires (104) is used for transmitting a power signal from the first circuit board (20) to the second circuit board (30); the second group of wires (102) is used for transmitting a drive signal from the first circuit board (20) to the second circuit board (30); the second circuit board (30) is provided with a drive chip (302) and a negative voltage processing unit; a first end of the negative voltage processing unit is connected to the second group of wires (102); the drive chip (302) is provided with a drive pin and a grounding pin; a second end of the negative voltage processing unit is connected to the drive pin; and the negative voltage processing unit is used for enabling the drive pin to unidirectionally receive the drive signal, and for maintaining the voltage of the drive pin at the grounding voltage of a power ground. By means of the drive control apparatus and the gimbal, the risk of damaging a drive chip when same is in a negative voltage for a long time can be reduced, and the operation safety of the drive control apparatus is improved.

Inventors:
LIN HONG (CN)
WANG DEJUN (CN)
ZHANG HAINING (CN)
MA JUMENG (CN)
Application Number:
PCT/CN2020/135420
Publication Date:
April 07, 2022
Filing Date:
December 10, 2020
Export Citation:
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Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H02P6/16
Foreign References:
CN210348973U2020-04-17
CN204707030U2015-10-14
CN108494247A2018-09-04
CN209913692U2020-01-07
US7058732B12006-06-06
US20150002192A12015-01-01
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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