Results 51 to 60 of about 3,714 (283)
On the Mechanical Chopper for the Chopper Amplifier (Part 1) : The Relation Between the Conversion Efficiency and Contact Rate [PDF]
, 1962 Though the various studies on the chopper amplifier (the contact modulated amplifier) have been reported, but those on the chopper itself are not so many. In the formers, the chopping action is assumed to be an ideal ON - OFF action.
松山, 潔
core
A 192nW inverter-based chopper instrumentation amplifier for micropower ECG applications
, 2014 This paper proposes a low-power inverter-based chopper instrumentation amplifier (IA) for ECG applications. A capacitively-coupled topology with chopper is employed while a two-stage inverter-based amplifier serves as the gain stage. Pseudo resistors are
Wang, Jiayi +15 more
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Advanced Materials Interfaces, EarlyView.3D conductive frameworks can maintain continuous electron transport, mechanical stability, and interfacial integrity, helping next‐generation batteries operate more efficiently. This Review examines their relevance to Si anodes, all‐solid‐state batteries, and dry‐processed electrodes, and highlights bio‐derived carbons as sustainable, structurally ...
SeoYoung Ha +5 more
wiley +1 more source
Design of sigma-delta modulator 10-16 bits for resolver digital converter
Dianzi Jishu Yingyong, 2022 In this paper, a sigma-delta modulator for 10-16 bit resolver digital converter is designed. The modulator is a second-order structure. On this basis, a chopper modulator circuit is added to eliminate the flicker noise.
Gu Jun, Zhang Guohua, Zhu Xiaoyu
doaj +1 more source
A CMOS low-noise instrumentation amplifier using chopper modulation
, 2005 This paper describes a low-power, low-noise chopper stabilized CMOS instrumentation amplifier for biomedical applications. Low thermal noise is achieved by employing MOSTs biased in the weak/moderate inversion region, whereas chopper stabilization is ...
Bruun, Erik, Nielsen, Jannik Hammel
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Advanced Materials Interfaces, EarlyView.A triple‐cation perovskite detector with a quasi‐interdigitated back‐contact architecture enables highly sensitive and linear EUV/soft x‐ray detection by minimizing electrode shadowing and enhancing charge extraction. Efficient interfacial carrier collection and rapid temporal response highlight the potential of back‐contact‐engineered perovskites for ...
Jingying Liu +5 more
wiley +1 more source
Fully Integrated Biopotential Acquisition Analog Front-End IC
Sensors, 2015 A biopotential acquisition analog front-end (AFE) integrated circuit (IC) is presented. The biopotential AFE includes a capacitively coupled chopper instrumentation amplifier (CCIA) to achieve low input referred noise (IRN) and to block unwanted DC ...
Haryong Song +3 more
doaj +1 more source
3.2 A Chopper-Stabilized Amplifier with a Relaxed Fill-In Technique and 22.6pA Input Current
, 2023 In chopper amplifiers, the interaction between the input signal and the chopper clock can cause intermodulation distortion (IMD). This is due to amplifier delay, which causes signal transitions generated by the input chopper to arrive at the amplifier's ...
Rooijers, C.T. (author) +2 more
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Advanced Materials Technologies, EarlyView.The opto‐electronic response of polycrystalline (PEA)2PbBr4 thin films is investigated by correlating macroscopic photodetector performance with nanoscale mapping techniques. Grain boundary density is systematically tuned through crystallization control and linked to device responsivity.
Camilla Bordoni +10 more
wiley +1 more source
Advanced Optical Materials, EarlyView.Mono‐ and bilayer MoS2 photodetectors enable wavelength‐selective AC photoresponse and optically driven capacitance modulation under visible illumination. Green excitation produces the strongest cumulative capacitive response, consistent with trap‐mediated charge accumulation at mono/bilayer and metal–MoS2 interfaces.
Pegah Zandi +5 more
wiley +1 more source