CMOS full-wave operational transconductance rectifier with improved DC transfer characteristic

P. Heim; F. Krummenacher; E. Vittoz

doi:10.1049/el:19920207

SYNTHESIS OF CURRENT DIFFERENCING TRANSCONDUCTANCE AMPLIFIER-BASED CURRENT LIMITERS AND ITS APPLICATIONS

Journal of Circuits System and Computers ◽

10.1142/s0218126611007190 ◽

2011 ◽

Vol 20 (02) ◽

pp. 185-206 ◽

Cited By ~ 18

Author(s):

WORAPONG TANGSRIRAT ◽

TATTAYA PUKKALANUN ◽

WANLOP SURAKAMPONTORN

Keyword(s):

Piecewise Linear ◽

Current Mode ◽

Building Blocks ◽

Transfer Characteristic ◽

Piecewise Linear Function ◽

External Bias ◽

Full Wave ◽

Transconductance Amplifier ◽

Electronically Tunable ◽

Current Differencing Transconductance Amplifier

A synthesis of analog current limiter (CL) building blocks based on a current differencing transconductance amplifier (CDTA) is proposed. The breakpoint and the slope of the resulting transfer characteristic obtained from the proposed CDTA-based CL are electronically programmable through the external bias currents. To demonstrate versatility of the proposed electronically tunable CLs, some nonlinear applications to programmable current-mode precision full-wave rectifiers and piecewise-linear function approximation generators are also presented. PSPICE simulation and experimental results confirm the effectiveness of the proposed circuits.

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Temperature independent current conveyor precision full-wave rectifier for low-level signal

Facta universitatis - series Electronics and Energetics ◽

10.2298/fuee0901117d ◽

2009 ◽

Vol 22 (1) ◽

pp. 117-123

Author(s):

Slobodan Djukic

Keyword(s):

Input Signal ◽

Transfer Characteristic ◽

Current Conveyor ◽

Current Steering ◽

Output Stage ◽

Zero Crossing ◽

Low Level ◽

Class A ◽

Full Wave ◽

Current Mirrors

A circuit that provides precision rectification low-level input signal with low temperature sensitivity is presented in this paper. It utilizes an improved second type current conveyor based around current-steering output stage and voltage biased silicon diodes, rather than more usual current mirrors. Proposed design of the precision rectifier ensures good current transfer linearity in the range that satisfy class A of the amplifier and good voltage transfer characteristic for low level signals. Distortion during the zero crossing of the input signal is practically eliminated. Design of the proposed rectifier is realized with usual components that can be bought in the market. .

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Analysis of Near-field Measurement Sensors Using Full-Wave Numerical Simulator

2018 International Applied Computational Electromagnetics Society Symposium - China (ACES) ◽

10.23919/acess.2018.8669102 ◽

2018 ◽

Author(s):

Hongxing Zheng ◽

Yong-qiang Sun ◽

Lu Wang

Keyword(s):

Field Measurement ◽

Near Field ◽

Full Wave ◽

Numerical Simulator ◽

Near Field Measurement

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Analysis of AC-DC Converter Circuit Performance with Difference Piezoelectric Transducer Array Connection

International Journal of Integrated Engineering ◽

10.30880/ijie.2020.12.07.003 ◽

2020 ◽

Vol 12 (7) ◽

Author(s):

Nik Ahmad Zainal Abidin ◽

◽

Norkharziana Mohd Nayan ◽

Azuwa Ali ◽

N. A. Azli ◽

...

Keyword(s):

Piezoelectric Transducer ◽

Simulation Analysis ◽

Piezoelectric Sensor ◽

Transducer Array ◽

Circuit Performance ◽

Array Configuration ◽

Full Wave ◽

Bridge Rectifier ◽

In Series ◽

Parallel Voltage

This research presents a simulation analysis for the AC-DC converter circuit with a different configurations of the array connection of the piezoelectric sensor. The selection of AC-DC converter circuits is full wave bridge rectifier (FWBR), parallel SSHI (P-SSHI) and parallel voltage multiplier (PVM) with array configuration variation in series (S), parallel (P), series-parallel (SP) and parallel-series (PS). The system optimizes with different load configurations ranging from 10 kΩ to 1 MΩ. The best configuration of AC-DC converter with an appropriate array piezoelectric connection producing the optimum output of harvested power is presented. According to the simulation results, the harvested power produced by using P-SSHI converter connected with 3 parallel piezoelectric transducer array was 85.9% higher than for PVM and 15.88% higher than FWBR.

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