A multi-motor back EMF discharge system for a rehabilitation robot
A rehabilitation robot and back EMF technology, applied in the field of rehabilitation robots, can solve the problems of inability to design the discharge circuit of the driver, limited space of the power board, and difficulty in carrying components, etc., and achieve the effect of avoiding overvoltage alarm and saving volume
Active Publication Date: 2021-12-07
布法罗机器人科技(成都)有限公司
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is that in the prior art, a driver is equipped with a discharge circuit, and the rehabilitation robot cannot design a discharge circuit for each driver due to weight and volume limitations. Generally speaking, the space of the power board is limited, and it is difficult to carry so many components. The purpose is to provide a multi-motor back EMF discharge system for rehabilitation robots to solve the above problems
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[0029] like figure 1 with figure 2 As shown in a multi-robot motor rehabilitation circuit of EMF circuit, including PMOS transistors, power modules, modules and anti-anti-filtering module; a power module connected to the drain of the PMOS transistor, the single anti-reflective module conduction, and the prevention of the positive module access the VCC power supply voltage, a negative anti-reflective module is connected to at least two joints filtering module control module; a source of said PMOS transistor is connected via at least two filter module a joint control module, and the gate voltage of the VCC power supply PMOS access tube; when the articulation control module generates a back EMF, the PMOS transistor is turned on, the module power consumption for back EMF; when the joint control module is not back EMF generated when the PMOS transistor is turned off, the supply voltage VCC to control the power supply module by the anti-anti-joint module and a filter module.
[0030] Wh...
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The invention discloses a multi-motor back EMF discharge circuit for a rehabilitation robot. The power module is connected to the drain of a PMOS tube, the anti-reverse module conducts in one direction, and the positive pole of the anti-reverse module is connected to the power supply voltage VCC. The negative electrode is connected to at least two joint control modules through the filter module; the source of the PMOS transistor is connected to at least two joint control modules through the filter module, and the gate of the PMOS transistor is connected to the power supply voltage VCC. The invention also discloses a multi-motor counter electromotive force discharge system for a rehabilitation robot. The invention provides a multi-motor back EMF discharge circuit and system for a rehabilitation robot. The back EMF discharge circuits of multiple motors are combined into one, which effectively saves the volume and weight of the rehabilitation robot, and avoids damage caused when the motors are switched forward and reverse. The back electromotive force will cause overvoltage alarm on the control circuit board and even damage the components on the circuit board.
Description
Technical field [0001] The present invention relates to the technical field of rehabilitation robots, in particular, it relates to a system for rehabilitation robots potential anti-bleed multi electrical motor. Background technique [0002] Rehabilitation robots generally have a total of about four hip and knee joints, each joint drive motor and a required, since the direction of the joint rehabilitation robots will occur frequently switched during walking, so the motor will frequently reversing switch, thereby causing the motor It is frequently generated back EMF, if the back EMF does not release let go, the drive motor will cause an overvoltage fault message, or even damage to components of the control circuit board, it is necessary to increase the motor back EMF bleeder circuit. A prior art drive circuit with a bleeder, the weight of the robot and rehabilitation, size restrictions, a bleeder circuit can not be designed for each drive. While conventional bleeder circuit include...
Claims
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IPC IPC(8): H02H9/04
CPCH02H9/045
Inventor 程洪蒋相春邹朝彬
Owner 布法罗机器人科技(成都)有限公司