Journal ArticleDOI
Junction Impedance Measurements of Diodes by a Simplified Lock-In Amplifier
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TLDR
In this article, a lock-in amplifier with most parts of its functional components substituted by integrated circuits is described, which is suitable for junction capacitance and resistance measurement of diodes under reverse or forward bias.Abstract:
A lock-in amplifier with most parts of its functional components substituted by integrated circuits is described here. This amplifier is far from expensive and is free from the trobles arising from temperature compensations and impedance matchings such as usually occur in conventional transistorized amplifiers. This instrument, operating at frequencies from 20 Hz to 100 kHz, has a noise rejection ratio of 40 dB and is suitable for junction capacitance and resistance measurement of diodes under reverse or forward bias.read more
Citations
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Journal ArticleDOI
A new discrete circuit for readout of resistive sensor arrays
TL;DR: In this paper, the authors proposed to use two sets of interconnection lines in row-column fashion with all the sensor elements having one of their ends connected to a row line and other end to a column line.
Journal ArticleDOI
Reducing Readout Complexity of Large Resistive Sensor Arrays
TL;DR: A method that simplifies the interconnect complexity of resistive arrays by using two sets of metal lines in row-column fashion and to get automated sequential access of all the individual elements is presented.
Proceedings ArticleDOI
Fast and efficient solar incremental conductance MPPT using lock-in amplifier
Francisco Paz,Martin Ordonez +1 more
TL;DR: In this paper, a new InCond technique is proposed based on small-signal identification and adaptive-step using a Lock-In Amplifier (LIA) to improve the steady-state efficiency.
Journal ArticleDOI
A cascade phase sensitive detector-phase response
TL;DR: In this paper, a phase sensitive detector (PSD) is described, which permits the realization of any phase response by means of many like stages in cascade or in parallel, and the performance of a prototype detector supports the principles of operation.
Proceedings ArticleDOI
Simulation of lock in amplifier (LIA) for very low signal measurements
TL;DR: This paper presents the simulation of a Lock-in amplifier completely based on LabVIEW, the software processes the signal analysis of the submerged intelligent signal in noise, and describes some characteristics of the Lock in amplifier.
References
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Book
Operational Amplifiers; Design and Applications
TL;DR: Operational amplifiers: design and applications, Operational amplifier: designs and applications , مرکز فناوری ا�لاعات و اطlاع رسانی, کسورزی
Journal ArticleDOI
Measurement of semiconductor junction parameters using lock-in amplifiers
H.P.D. Lanyon,A.E. Sapega +1 more
TL;DR: In this article, a phase sensitive detection scheme is described that allows the equivalent circuit of semiconductor diodes to be determined over a wide range of operating conditions, including reverse bias.