Design of High-precision Broadband Closed-loop Driving Power on Dielectrophoresis

Authors

  • Keqiang Dong College of Quality & Safety Engineering, Key Laboratory of Furniture Inspection Technology of Zhejiang Province, China Jiliang University
  • Qihua Yang College of Quality & Safety Engineering, Key Laboratory of Furniture Inspection Technology of Zhejiang Province, China Jiliang University

DOI:

https://doi.org/10.3991/ijoe.v12i06.5513

Keywords:

Amplitude detection, Broadband, High precision, Impedance matching

Abstract


With the development and application of Biological chips and sensors, the demand for high-precision broadband driving power is increasingly rigorous. In order to improve the precision and reliability of the driving power, a high precision broadband closed-loop signal generator has been designed. It works by the high-accuracy amplitude detection circuit, the broadband voltage controlled amplifier and a micro-controller. The principles of amplitude detection circuit and amplifier circuit have been elaborated. Within 1 MHz ~ 200 MHz band, within 1 ~ 10 VPP amplitude range, under 50 Ω output impedance, the error of output signal amplitude can be controlled effectively. Precision is up to 0.15%. It meets the index and scientific research’s requirement.

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Published

2016-06-30

How to Cite

Dong, K., & Yang, Q. (2016). Design of High-precision Broadband Closed-loop Driving Power on Dielectrophoresis. International Journal of Online and Biomedical Engineering (iJOE), 12(06), pp. 16–19. https://doi.org/10.3991/ijoe.v12i06.5513

Issue

Vol. 12 No. 06 (2016)

Section

Papers

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