Novel Resistorless Mixed-Mode PID Controller with Improved Low-Frequency Performance

Radioengineering

关键词: PID controller;    grounded capacitor;    resistorless;    mixed-mode;    electronic tunability;   

DOI  :  

来源: DOAJ

【 摘 要 】

This paper introduces a new resistorless mixed-mode proportional-integral-derivative (PID) controller. It employs six simple transconductors and only two grounded capacitors. The proposed PID controller offers several advantageous features of resistorless configuration, use of grounded capacitors, independent electronic-tuning characteristic of its parameters, and mixed-mode operation such as current, transimpedance, transadmittance, and voltage modes. The parasitic element effects of the transconductors on the proposed controller are investigated and the improved low-frequency performance of the proposed controller is then discussed. As applications, the proposed controller is demonstrated on two closed-loop systems. The PSPICE simulations with TSMC 0.18µm CMOS process and ±0.9V supply voltage verify the theoretical analysis.

【 授权许可】

Unknown