Direct current motor driving device and control method
A driving device and DC motor technology, which is applied in the field of excitation or armature current control, electric vehicles, mechanical equipment, etc., can solve the problems of large power loss, MOS tube heating, and large limitations, so as to improve efficiency and stability, Effect of reducing heat generation and wide applicability
Pending Publication Date: 2022-08-05
武汉中岩科技股份有限公司
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Problems solved by technology
[0007] 1) poor transplantability
If a constant voltage power supply module is used to supply power to the motor, the rated operating voltage of the motor must also be consistent with the output voltage of the power module, which has great limitations; when the motor is replaced, the power module also needs to be replaced together, which is poor in portability
[0008] 2) Large power loss and severe heat generation
When PWM is used to control the on-off of the MOS tube to drive the motor, there will be switching loss and conduction loss on the MOS tube, and due to the high frequency of PWM, the switching loss of the MOS tube is much greater than the conduction loss, resulting in serious heating of the MOS tube, which is extremely Greatly affects the service life of the drive
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[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0045] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for description purposes, and cannot be interpreted as indicating or implying relative importance or the number of indicated technical features. Thus, features delimited with "first", "second" may expressly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise expressly an...
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The invention discloses a direct current motor driving device and a control method, the device comprises an adjustable power supply unit, a boost unit, a driving voltage distribution unit, an MOS tube driving unit and an H-bridge unit, the output end of the adjustable power supply unit is connected with the boost unit and the H-bridge unit, the output end of the boost unit is connected with the driving voltage distribution unit, and the output end of the MOS tube driving unit is connected with the H-bridge unit. The output end of the driving voltage distribution unit is connected with the MOS tube driving unit, and the output end of the MOS tube driving unit is connected with the H-bridge unit. The transportability of the driving device is improved, heating of the MOS tubes is reduced, and meanwhile the independent and arbitrary speed regulation function of the wheels on the two sides of the pipeline robot is achieved.
Description
technical field [0001] The invention relates to the technical field of pipeline robot control, in particular to a direct current motor driving device and a control method. Background technique [0002] The pipeline robot generally has two DC motors to drive the wheels on the left and right sides respectively to realize the movement in all directions of forward, backward, left turn and right turn. There are two main driving devices and control methods of the existing pipeline robot DC motor: the adjustable DC power module is combined with the relay to drive the motor, and the constant voltage DC power module is combined with the H bridge to drive the motor. [0003] For the adjustable DC power module and the relay combined drive motor, the drive device mainly includes a power supply unit and a relay drive unit, the power supply unit is the adjustable DC module, the relay drive unit consists of three relays, and the relay RL1 is used as a power switch. Control whether to supp...
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Login to View More IPC IPC(8): H02P7/29F16L55/32
CPCH02P7/29F16L55/32Y02T10/72
Inventor 高飞平付海陈军毛勇强刘守华柴露柳竹青
Owner 武汉中岩科技股份有限公司