Drive control device for piezoelectric jet dispensing equipment
A piezoelectric injection and dispensing technology, applied in program control, computer control, general control system, etc., can solve the problems of low energy utilization efficiency, small drive current, difficult parameter adjustment, etc., and achieve the effect of convenient and flexible parameter adjustment
Active Publication Date: 2018-10-19
JILIN UNIV
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Problems solved by technology
[0013] The technical problem to be solved by the present invention is to overcome the problems of low energy utilization efficiency, small driving current, difficult and complex parameter adjustment and residual strain in the prior art due to large high-order harmonic components, and provides a piezoelectric injection Drive control device for dispensing equipment
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[0057] The present invention is described in detail below in conjunction with accompanying drawing:
[0058] refer to figure 1 , The driving control device of the piezoelectric jet dispensing equipment according to the present invention includes a power supply part, a control part, an excitation signal generating part and a driving part.
[0059] 1. Power part
[0060] The power supply part includes a step-down regulated power supply and a DC regulated power supply.
[0061] The step-down stabilized power supply includes a positive and negative 12V switching power supply model D-3F, a filter circuit, a positive 12V to 5V conversion circuit, a 5V to 3.3V conversion circuit and a power indicator circuit, providing 5V, 3.3V for the control part. V direct current, providing positive and negative 12V, 5V direct current for the excitation signal generation part (with the digital ground DGND as the reference potential);
[0062] The model described above provides high-voltage HVCC...
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The invention discloses a driving control device of piezoelectric jetting dispensing equipment, aiming at solving the problems in the prior art that a higher harmonic component is great so that the energy source utilization efficiency is low, driving current is small, parameters are difficult and complicated to adjust and residual strain is formed. The driving control device comprises a power supply part, a control part, an excitation signal generating part and a driving part; the power supply part comprises a voltage reduction and voltage stabilization power supply and a direct-current voltage stabilization power supply; the voltage reduction and voltage stabilization power supply comprises a positive-negative 12V switching power supply with a model of D-3F, a filtering circuit, a positive 12V-to-5V conversion circuit and a 5V-to-3.3V conversion circuit; the voltage reduction and voltage stabilization power supply is connected with the control part and the excitation signal generating part respectively through electric wires; a positive output end of the direct-current voltage stabilization power supply PMC1 is connected with a drain electrode of an MOS (Metal Oxide Semiconductor) tube Q6 in an MOS tube full bridge circuit of the driving part through an electric wire; the positive output end of the direct-current voltage stabilization power supply PMC2 is connected with a drain electrode of an MOS tube Q5 in the MOS tube full bridge circuit of the driving part through an electric wire.
Description
technical field [0001] The invention relates to a driving control device belonging to the field of electric control, more precisely, the invention relates to a driving control device of a piezoelectric jet dispensing device. Background technique [0002] Fluid dispensing is the process of precisely dispensing fluid in a controlled manner. It plays an important role in various industries such as food processing, biomedicine, and microelectronic packaging. Especially in the field of microelectronic packaging, there are more stringent requirements for the performance of fluid dispensing, and fluid dispensing technology has gradually become one of the key technologies in microelectronic packaging. [0003] Compared with the traditional needle-type fluid dispensing technology, piezoelectric jet dispensing technology has the advantages of fast speed, high precision, good consistency, good distribution effect and no space limitation, providing high-speed, high-quality fluid dispen...
Claims
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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/21108
Inventor 李新波姜良旭郭晨王英伟刘国君吴越刘建芳杨志刚石要武李家伟
Owner JILIN UNIV