Accurate nonlinear capacitance measurement based on frequency response compensation

Xiao Long; Chen Kai; Dongdong Chen; Luo Jun

doi:10.1117/12.3032591

27 June 2024 Accurate nonlinear capacitance measurement based on frequency response compensation

Xiao Long, Chen Kai, Dongdong Chen, Luo Jun

Proceedings Volume 13211, Asia Conference on Electronic Technology (ACET 2024); 132110B (2024) https://doi.org/10.1117/12.3032591
Event: Asia Conference on Electronic Technology (ACET 2024), 2024, Singapore, Singapore

Abstract

In the measurement of nonlinear power capacitor, large DC (direct current) voltage and small AC (alternate current) sinusoidal voltage connected in series are applied to the nonlinear capacitor. In this situation, measurement precision of the capacitor AC sinusoidal voltage and current are critical to the accurate calculation of nonlinear capacitance parameter. Owing to the voltage level diversity, voltage regulation circuit is needed between the measurement terminals and measurement instrument. Though deliberately designed, measurement circuit introduced amplitude and phase error is inevitable. In this paper, an accurate AC sinusoidal small signal measurement method is proposed to promote the measurement precision. The small signal model of the voltage regulation circuit is deduced first. The amplitude and phase angle of the measured sinusoidal small signal is calculated by software phase lock loop (SPLL) method, after which the amplitude and phase angle error is compensated based on the deduced small signal model of the voltage regulation and filter measuring circuit and frequency response method. The correctness and effectiveness of the proposed accurate AC sinusoidal small signal measurement method has been verified by simulation experiment.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xiao Long, Chen Kai, Dongdong Chen, and Luo Jun "Accurate nonlinear capacitance measurement based on frequency response compensation", Proc. SPIE 13211, Asia Conference on Electronic Technology (ACET 2024), 132110B (27 June 2024); https://doi.org/10.1117/12.3032591

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available