PDF
Full
Outline
Piezoelectric inkjet printing technology is widely employed in various fields，including 3D printing，electronics manufacturing，and biomedical applications，owing to its advantages such as high precision，low noise，and borad material adaptability. The driving power supply is a critical component of piezoelectric inkjet systems，as the driving pulse waveform it applies to the piezoelectric ceramics determines the quality of the inkjet-printed products. However，existing driving power supplies face challenges such as generating only unipolar voltage waveforms and exhibiting poor compatibility，making it difficult to meet the personalized requirements of different types of piezoelectric printheads for driving signals. To address these issues，an adjustable high-voltage driving power supply circuit based on an FPGA chip was designed. The proposed circuit incorporates a polarity conversion module to switch the polarity of the driving waveform and a two-stage amplification circuit combining amplifiers and transistor amplifiers to achieve voltage amplification. Additionally，control code was developed and simulations were conducted to validate the effectiveness of the driving power supply. The proposed circuit not only facilitates the generation and amplification of low-voltage pulse signals but also successfully outputs bipolar trapezoidal waves with adjustable gain. Simulation results demonstrate that the driving power supply can generate adjustable bipolar pulse signals with a rise time of 20 μs，a voltage amplitude of±170V，and a frequency of 4.17kHz. Furthermore，it supports the simultaneous operation of multiple nozzles under a 2nF load condition.
PDF
129
66
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
