Switch-Controllable Full-Phase Operation Precision Half-Wave Rectifier Using a Single OTRA

Abstract

This paper proposes designing a precision rectification circuit by using a single operational transresistance amplifier (OTRA). The proposed circuit is a switch-controllable OTRA-based full-phase operation precision half-wave rectifier, which can rectify an input signal to yield four-phase half-wave rectified output signals. Compared with existing designs, the advantage of the proposed circuit is that all of the possible rectified outputs of a half-wave rectifier can be obtained in one configuration. This paper first reviews previously reported half-wave precision rectifiers consisting of various active devices and the proposed OTRA-based precision half-wave rectifier; subsequently, an analysis of non-ideal effects and design considerations are presented. Computer simulations of the proposed circuit were conducted for verifying the feasibility of the circuit by using the Taiwan Semiconductor Manufacturing Company (TSMC) 0.35-[Formula: see text]m CMOS process technology. For practical circuit measurements, a prototype circuit was implemented, and commercially integrated circuits (AD844ANs) and discrete passive components were used to conduct experimental tests. The simulation and experimental results exhibited satisfactory agreement with those of theoretical analyses.

Full-Phase Operation Transresistance-Mode Precision Full-Wave Rectifier Designs Using Single Operational Transresistance Amplifier

“…In addition to the topologies for realizing precision rectifiers by adopting single-type active devices [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18], previous studies have presented several schemes that combine diverse active devices, including the CCII, OA, and universal voltage conveyor (UVC) [19,20]. Three recent studies demonstrating VM rectification solutions, which were designed by using operational transresistance amplifiers (OTRAs), have been reported in [21][22][23]. Although implementation of OTRAbased VM rectification circuits has been presented [21][22][23], the concept of the full-phase operation transresistance-mode (TRM) precision full-wave rectifier has not been discussed in previous studies.…”

“…Three recent studies demonstrating VM rectification solutions, which were designed by using operational transresistance amplifiers (OTRAs), have been reported in [21][22][23]. Although implementation of OTRAbased VM rectification circuits has been presented [21][22][23], the concept of the full-phase operation transresistance-mode (TRM) precision full-wave rectifier has not been discussed in previous studies. Therefore, this study proposed two compact circuit topologies to explore transresistance-mode precision rectification circuits.…”