Miniature driving circuit for electroactive polymer actuator

An electroactive polymer, driving circuit technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of bulky components, complicated wiring, and not easy to carry, so as to meet the requirements of portable, reduce response time, Small size effect

Pending Publication Date: 2022-01-25
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this excitation method is that it is convenient to adjust the signal. However, due to its large size and complicated wiring, it is not easy to carry. It is usually used in a fixed position, and it cannot output arbitrary waveforms. Fields such as robotics and electromagnetic metasurfaces

Method used

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  • Miniature driving circuit for electroactive polymer actuator
  • Miniature driving circuit for electroactive polymer actuator
  • Miniature driving circuit for electroactive polymer actuator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] This embodiment describes a high-efficiency and small-scale driving circuit that outputs a sine wave signal to drive an ion-type electroactive polymer actuator.

[0056] see figure 1 , a high-efficiency small-scale drive circuit includes a high-energy-density low-voltage battery, a control module, a switching circuit, and a feedback sensing unit.

[0057] Among them, the high-energy-density low-voltage battery uses a USB power supply port, which is small and convenient; the control module uses a micro-control chip Attiny13a; the switch circuit is realized by using multiple MOS tubes, please refer to Figure 6 ; The feedback sensing unit is a capacitive displacement sensor.

[0058] When driving the ionic electroactive polymer actuator, it is necessary to insert the USB power supply port into the USB power port, or cooperate with the USB power plug to provide 5V constant voltage for the micro control chip Attiny13a and the capacitive displacement sensor; the output cycl...

Embodiment 2

[0060] This embodiment describes a high-efficiency and small-scale driving circuit that outputs a constant-voltage step signal to drive a dielectric gel-type electroactive polymer actuator.

[0061] see figure 1 , a high-efficiency small drive circuit includes a high-energy-density low-voltage battery, a control module, a switch circuit, a high-voltage module, and a feedback sensing unit.

[0062] Among them, the low-voltage battery with high energy density uses a 12V rechargeable lithium battery; the control module uses a micro-control chip Arduino; the switch circuit uses a single MOS tube to control on-off; the high-voltage module uses a small booster module NCH6300HV; the feedback sensing unit uses a charge amplifier circuit.

[0063] When driving the dielectric gel type electroactive polymer actuator, it is necessary to press the switch of the 12V rechargeable lithium battery to provide 12V constant voltage for the micro control chip Arduino, NCH6300HV small boost module ...

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Abstract

The invention discloses a miniature drive circuit for an electroactive polymer actuator. The drive circuit comprises a high-energy-density low-voltage battery, the high-energy-density low-voltage battery is connected with a feedback sensing unit after sequentially passing through a control module, a switching circuit and the electroactive polymer actuator, and the feedback sensing unit is used for detecting the running state of the actuator, and performs feedback control on the on-off of the driving circuit; and the loading time of the voltage on the electroactive polymer actuator is controlled by using a switching signal, and the maximum charging electric quantity of the actuator, the deformation size of the actuator or the driving force are measured through the feedback sensing unit to carry out feedback control on the pulse width. The drive circuit is small in size and convenient to use, and meets the requirements of carrying and testing anywhere.

Description

technical field [0001] The invention belongs to the technical field of intelligent material drive, and in particular relates to a small drive circuit for an electroactive polymer actuator. Background technique [0002] Electroactive polymer material (EAP) is a new type of intelligent material. Compared with traditional motor and hydraulic drives, it has the advantages of light weight, large deformation, no noise, fast response, low energy consumption and flexible movement. It has received more and more attention and research from scholars. In the past two decades, electroactive polymer materials have been an important direction in the field of biomimetic materials and have developed rapidly, with broad development prospects, especially in the fields of electronic wearable devices, soft robots, and electromagnetic metasurfaces. In these fields, there are high demands on the volume weight, response speed and efficiency of the power supply. [0003] The traditional excitation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/00H02J7/00
CPCH02N2/0075H02J7/0063
Inventor 朱子才程随军卞长生
Owner XI AN JIAOTONG UNIV
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