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Miniature piezoelectric ceramic driving control system

A piezoelectric ceramic drive and control system technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc. The effect of wide range, high output signal accuracy and good dynamic characteristics

Inactive Publication Date: 2012-01-04
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the volume of the existing piezoelectric ceramic drive circuit is too large, and to provide a miniaturized piezoelectric ceramic drive control system based on the function of mutual conversion between electrical energy and mechanical energy according to the inverse piezoelectric effect of piezoelectric ceramics

Method used

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  • Miniature piezoelectric ceramic driving control system
  • Miniature piezoelectric ceramic driving control system
  • Miniature piezoelectric ceramic driving control system

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Embodiment

[0034] The application of the present invention will be described below in conjunction with an example. After the piezoelectric ceramic drive control system of this embodiment is manufactured, we install the miniaturized piezoelectric ceramic drive control system in an infrared thermal imager to drive the thermal image Piezoelectric ceramics in the instrument relay lens. The frequency of the system trigger signal is 60Hz, and the duty cycle of its waveform is 5.988%; the falling edge of the trigger signal triggers the main controller module to transmit a digital signal to the DA through the SPI (Serial Peripheral Interface, serial bus interface) bus (In this embodiment, its value is 0XBB8,), the DA conversion module converts the digital signal into a small analog voltage signal of 3V, and then the high voltage amplifying circuit amplifies the voltage into a high voltage of 90V, and then drives the piezoelectric ceramic for high voltage Accurate micro-displacement.

[0035] In...

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Abstract

The invention relates to a miniature piezoelectric ceramic driving control system, which belongs to the field of micro-displacement control technology. The system comprises a power supply circuit module, a master controller, and a DA conversion and high-voltage amplification circuit. A 12V power supply and a system triggering signal are respectively connected to the power supply circuit module and the master controller. The power supply circuit converts 12V power supply into 5V, 3.3V, 100V and -12V voltages, 3.3V voltage is supplied to the master controller and the DA conversion module, -12V voltage and 100V voltages are supplied to the high-voltage amplification circuit. The master controller forms a corresponding digital signal according to the waveform of the system triggering signal, converts the digital signal into an analog small-voltage signal through the DA conversion module, and finally converts into the high voltage through the high-voltage amplification circuit to be the driving voltage of the piezoelectric ceramic. The miniature piezoelectric ceramic driving control system is 10.7 cm in length and 7.6cm in width and suitable for the miniature design requirement; and the system can be widely used in the miniature control system with the piezoelectric ceramic as core.

Description

technical field [0001] The invention relates to a miniaturized piezoelectric ceramic drive control system, which belongs to the technical field of micro-displacement control. Background technique [0002] With the rapid development of photoelectric imaging technology, the fields of application are becoming more and more extensive, such as military, medical, industrial, security and many other fields have been widely used. The development of imaging technology has directly led to the development of various CCD and CMOS solid-state imaging devices, and the imaging sensors of various bands have also been developed rapidly. For the infrared band, the infrared focal plane detector array (IRFPA) has the advantages of simple structure, strong detection ability, low power consumption, high frame rate, and good stability. It is used in infrared search systems, airborne forward-looking infrared systems, imaging It is widely used in seeker and imaging tracking system. However, the ar...

Claims

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Application Information

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IPC IPC(8): H02N2/06
Inventor 徐超刘崇亮金伟其徐加晔王霞刘秀
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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