A current-starved inverter-based differential amplifier design for ultra-low power applications

Wilson, William; Chen, T.; Selby, R.

doi:10.1109/lascas.2013.6519040

Cited by 24 publications

(12 citation statements)

References 16 publications

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“…Using 12 VDC high power source is more easy to design and build an inverter than using 5 VDC low power source from powerbank. It's because low power source such as powerbank, has a low voltage and low current so is more complex to converting DC to AC with sinusoidal wave form, specially for efficiency [11]. The method usually uses, is multilevel inverter with unipolar PWM or two level inverter with bipolar PWM [2][4][5] [6].…”

Section: Resultsmentioning

confidence: 99%

Inverter using powerbank as power source with pure sine wave output

Wicaksono

Estananto

2018

MATEC Web Conf.

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The current factory-generated inverters, typically use high power sources or energy sources, with a minimum input voltage of 12VDC, 24VDC, 48VDC with an effective voltage output of 220 VAC with a frequency of 50Hz/60Hz. These power sources are usually obtained from starting battery or deep-cycle battery. The problem of inverter currently that portable inverter using a low power source with a sine wave output is not available. So in this research conducted inverter design using power source/ energy source from powerbank 5 VDC 16000 mAh with 50 Hz 40 Vpp sine wave output. Inverter design method in this final project research based on simulation which used LTspice application. And in this inverter system, have been decided to using MOSFET as switching and using h-bridge as inverter topology, because MOSFET has high efficiency compared with BJT or J-FET. This final project research is expected to be an inverter using powerbank resources and become a portable inverter so in the future can be used for loads that require sinusoidal signals such as electric stoves, and can be used also for climbing purposes.

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Section: Resultsmentioning

confidence: 99%

Inverter using powerbank as power source with pure sine wave output

Wicaksono

Estananto

2018

MATEC Web Conf.

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“…(1) The designed Op-Amp consumes 0.47 µW. This power dissipation is one of the lowest reported [45,46]. Table I summarizes the amplifier's specifications in addition to comparing our work to other similar designs.…”

Section: A Low Power Noise Immune Current Conveyormentioning

confidence: 97%

“…Instead of using power hungry front end amplifiers; a wide swing folded cascade amplifier Fig. 5 is used for its high gain and stability [45]. Power dissipation is minimized since the Op-Amp is designed to operate in the subthreshold region.…”

Section: A Low Power Noise Immune Current Conveyormentioning

confidence: 99%

Towards an implantale intelligent CMOS neurotrophic factor delivery micro neural prosthetic for Parkinson's disease

Poustinchi

Musallam

2013

2013 6th International IEEE/EMBS Conference on Neural Engineering (NER)

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Millions of patients around the world suffer from neurological disorders. Many of these diseases such as Parkinson's are due to degeneration of Dopaminergic neurons. Our ultimate goal is to develop an intelligent implantable CMOS neurotrophic factor delivery microsystem which can maintain therapeutic levels of chemical concentrations in the brain by protecting the healthy neurons and restoring damaged ones. The hybrid microsystem is composed of neural probes fitted with novel sensors that can sense micromolar concentration of neurotransmitters (dopamine) and embedded negative feedback circuits that control the flow of pharmacological agents in micro fluidic channels. Additionally MEMS (Micro Electro Mechanical System) pumps connected to the probes to inject micromolar concentration of neurotrophic factors such as GDNF into the brain in order to protect and restore dopaminergic neurons in the nigrostriatal pathway. The focus of this manuscript is on sensing, control and decision making circuitry. It consists of a current conveyer, a low noise low power amplifier, an integrator and a comparator with offset cancelation. Circuit is fabricated in CMOS 0.18 um with low power consumption of 921 nW while maintaining a bandwidth of 2.75K Hertz.

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“…The Class-C inverter-based OTA topology is shown in Figure 8 (Wilson, et al, 2013). To reduce power consumption, the OTA is operated at 0.9V supply voltage as opposed to the nominal 1.8V supply voltage for the 0.18m CMOS process.…”

Section: Proposed Tia Designmentioning

confidence: 99%

Design of a 50MO Transimpedance Amplifier with 0.98fa/vHz Input Inferred Noise in a 0.18µM CMOS Technology

Wilson

2014

Proceedings of the International Conference on Biomedical Electronics and Devices

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Low noise and low power consumption are key requirements for high performance electrochemical biosensors. Noise performance directly affects the sensor's ability to detect small amounts of target chemical compounds. These requirements present challenges for the design of frontend circuitry in electrochemical biosensors. These challenges are especially apparent for integrated electrochemical biosensor arrays, as sensor size is limited by tissue cell size and the desire to achieve a cellular scale resolution. This paper presents a low-noise and low-power transimpedance amplifier (TIA) intended for (but not limited to) use as an analog frontend in an electrochemical biosensor. The amplifier was designed on a commercial 0.18µm CMOS process. The overall design achieves a 50MΩ transimpedance gain with 981aA/√Hz input inferred noise, 8.06µW power consumption at 0.9V power supply, and occupies an overall silicon area of 0.0074mm 2. To our best knowledge, the design presented in this paper achieved the best noise performance and power consumption among transimpedance amplifier designs reported to date.

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A current-starved inverter-based differential amplifier design for ultra-low power applications

Cited by 24 publications

References 16 publications

Inverter using powerbank as power source with pure sine wave output

Inverter using powerbank as power source with pure sine wave output

Towards an implantale intelligent CMOS neurotrophic factor delivery micro neural prosthetic for Parkinson's disease

Design of a 50MO Transimpedance Amplifier with 0.98fa/vHz Input Inferred Noise in a 0.18µM CMOS Technology

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