A simple resistance-to-time converter for resistive bridge sensors

Chung, Woo Sik; An, Min-Young; Son, Sang-Hee

doi:10.1587/elex.5.310

Cited by 8 publications

(5 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By the advancement in the semiconductor technology, it is easy to find the identical comparators. The identical comparators ensuring high accuracy and validate (6).…”

Section: Resultsmentioning

confidence: 92%

“…When VINT reaches the high threshold voltage of the upper Schmitt trigger VTH1, the output of the upper Schmitt trigger VSMT1 falls to zero and the output of the XOR gate VOUT becomes high. Denoting t1 the time duration for which VSMT1 keeps L1+, we can write [6]…”

Section: Experimental and Resultsmentioning

confidence: 99%

“…Equation (6) indicates that the converter offers an equivalent output pulse whose time interval is proportional to the resistance change. If L1+ is not equal to L2+, the output can be expressed as follow: [6]…”

Section: Experimental and Resultsmentioning

confidence: 99%

See 2 more Smart Citations

A Proposed Resistance-to-Time Converter with Switching Impulse Calibrators for Application in Resistive Bridge Sensors

Alam

Khan

Adam

et al. 2018

IJEECS

View full text Add to dashboard Cite

This paper presents a simple resistance-to-time converter. It consists of two voltage comparators, a ramp voltage generator, two logic gates and impulse voltage calibrators. A square-wave generator circuit is suggested in this paper. The design is simple and independent of the OPAMP offset issues. The resulting square-wave is rectified to get its DC equivalent and to a triangular output; the two outputs are applied to a comparator for generating a digital output with a duty cycle proportional to a change in resistance upon which is dependent the DC.

show abstract

“…By the advancement in the semiconductor technology, it is easy to find the identical comparators. The identical comparators ensuring high accuracy and validate (6).…”

Section: Resultsmentioning

confidence: 92%

Section: Experimental and Resultsmentioning

confidence: 99%

See 1 more Smart Citation

A Proposed Resistance-to-Time Converter with Switching Impulse Calibrators for Application in Resistive Bridge Sensors

Alam

Khan

Adam

et al. 2018

IJEECS

View full text Add to dashboard Cite

show abstract

“…Low-noise differential amplifiers are usually used for reading the output voltage. To minimize the noise in these devices we can also make use of new acquisition schemes, such as converting resistance to frequency, which can be implemented for both resistive elements [23] and bridges [24].…”

Section: Particular Issues In Ic Current Monitoringmentioning

confidence: 99%

GMR Based Sensors for IC Current Monitoring

Reig

Cubells-Beltrán

2013

Giant Magnetoresistance (GMR) Sensors

View full text Add to dashboard Cite

Abstract. The Giant MagnetoResistance (GMR) effect is a magnetic coupling mechanism that can be obtained in multilayer structures of few nanometers thick. In these devices, and at room temperature, the resistance is a function of the external magnetic field, at optimal levels for being used as sensors. Since the GMR effect was reported, scientists and engineers have dedicated their effort to this topic. This way, after two decades, a a very good knowledge of the GMR underlying physics together with notable designs of GMR based devices are nowadays available. They were initially used in the read heads of hard drives, but the constant evolution that this technology has experienced has open new fields of application, mainly related to the measurement of small magnetic fields using miniaturized devices, such as biotechnology and microelectronics.Regarding the microelectronics case, these sensors can be potentially used in those scenarios that require a detection or measurement of nonintrusive power by the indirect measurement of the magnetic field.In this chapter, an overview to the current research regarding the application of GMR sensors in the measurement of electrical currents at the integrated circuit (IC) level is drawn. In this particular case is important to take account of particular parameters of the GMR devices such as the sensing structures, the geometric arrangement and implementation of the sensors, the considered linear range, undesired couplings, biasing, hysteresis, temperature drifts, ... We have also described some cases of success describin particular applications of these devices. Finally, some aspects related to the monolithic integration of GMR devices onto standard CMOS engineered chips are also considered in this chapter.

show abstract

“…Another highly quoted paper [3], proposes a resistance-to-time converter which is also implemented on a resistive bridge configuration. Over a resistance deviation range of 0 -2 Ω, the converter exhibits a response with nonlinearity error less than 0.005 %.…”

Section: State Of the Art Workmentioning

confidence: 99%

Highly Sensitive Timer-Based Resistance Deviation to Time Converter

Khan¹,

Shahid²,

Tasnim³

2012

IIUMEJ

View full text Add to dashboard Cite

Based on an inexpensive popular precision timing chip 555 timer, a resistance to time converter is proposed in this paper which is indeed capable of converting resistive and capacitive changes into pulse widths of proportional durations. This converter exhibits a compatibility of wider conversion range with a reasonable level of sensitivity required for industrial applications. The circuit is expected to have utility in oil and water supply schemes. Simulated results are shown to be compared with mathematical derivations, both reporting a good level of resemblance and similarities.

show abstract

A simple resistance-to-time converter for resistive bridge sensors

Cited by 8 publications

References 6 publications

A Proposed Resistance-to-Time Converter with Switching Impulse Calibrators for Application in Resistive Bridge Sensors

A Proposed Resistance-to-Time Converter with Switching Impulse Calibrators for Application in Resistive Bridge Sensors

GMR Based Sensors for IC Current Monitoring

Highly Sensitive Timer-Based Resistance Deviation to Time Converter

Contact Info

Product

Resources

About