Results 1 to 10 of about 5,299,339 (300)

Constant current versus constant voltage DBS stimulators—Changing trend [PDF]

open access: yesAnnals of Indian Academy of Neurology, 2023
Rukmini M Kandadai   +4 more
doaj   +4 more sources

pH Quantification in Human Dermal Interstitial Fluid Using Ultra-Thin SOI Silicon Nanowire ISFETs and a High-Sensitivity Constant-Current Approach [PDF]

open access: yesBiosensors, 2023
In this paper, we propose a novel approach to utilize silicon nanowires as high-sensitivity pH sensors. Our approach works based on fixing the current bias of silicon nanowires Ion Sensitive Field Effect Transistors (ISFETs) and monitor the resulting ...
Yann Sprunger   +6 more
doaj   +2 more sources

The safety to switch from constant voltage to constant current with a mixed internal pulse generator in deep brain stimulation [PDF]

open access: yesAnnals of Indian Academy of Neurology, 2023
Background: Deep brain stimulation (DBS) is an efficient modality for the treatment of movement disorders. Differing from the constant voltage (CV)-DBS devices, constant current (CC)-DBS devices may allow more precise stimulation of the target brain ...
Gülşah Öztürk, Kemal Paksoy
doaj   +2 more sources

Optimized Multi-Stepped constant current constant voltage fast charging controller for lithium-ion batteries [PDF]

open access: yesScientific Reports
This paper addresses an effective, reliable and fast charging method for maximizing lithium-ion battery performance, longevity, and safety. The proposed multi-stage current charging mechanism utilizes a modified multi-stepped constant current-constant ...
Mohamed Magdy   +3 more
doaj   +2 more sources

Evaluation of continuous constant current and continuous pulsed current in sweat induction for cystic fibrosis diagnosis [PDF]

open access: yesBMC Pulmonary Medicine, 2018
Background The sweat test (ST) is the gold standard for the diagnosis of cystic fibrosis (CF). However, little is known about sweat induction using different types of currents and waves.
Carla Cristina Souza Gomez   +8 more
doaj   +2 more sources

Current Mode Control of a Series LC Converter Supporting Constant Current, Constant Voltage (CCCV) [PDF]

open access: yesEnergies, 2019
This paper introduces a control algorithm for soft-switching series LC converters. The conventional voltage-to-voltage controller is split into a master and a slave controller.
Michael Heidinger   +6 more
doaj   +4 more sources

Design and Implementation of an IPT Charger with Minimum Number of Elements for Battery Charging Applications

open access: yesApplied Sciences, 2023
Inductive power transfer (IPT) systems have been extensively studied and incorporated into various industrial applications. An IPT system with the capability to provide constant current output (CCO) and constant voltage output (CVO) is necessary to ...
Xuebin Zhou   +5 more
doaj   +1 more source

An Ultra-Low Power, Adaptive All-Digital Frequency-Locked Loop With Gain Estimation and Constant Current DCO

open access: yesIEEE Access, 2020
In this paper, an ultra-low power, adaptive all-digital integer frequency-locked loop (FLL) with gain estimation and constant current digitally controlled oscillator (DCO) for Bluetooth low energy (BLE) transceiver in Internet-of-Things (IoT) is ...
Imran Ali   +9 more
doaj   +1 more source

Techniques of Recording Photoplethysmographic Signals

open access: yesCurrent Directions in Biomedical Engineering, 2021
The photoplethysmography optically measures blood volume changes within micro vascular tissue. Furthermore, photoplethysmographic signals are used within pulse oximeters in order to calculate the oxygen saturation of the blood.
Herrmann Hans, Ewald Hartmut
doaj   +1 more source

Research on hybrid topology of single-switch ICPT for battery charging [PDF]

open access: yesArchives of Electrical Engineering, 2020
In order to realize constant current and constant voltage charging for batteries by inductively coupled power transfer (ICPT) technology, a single-switch CL/LCL circuit is designed.
Guangzong Zhang   +3 more
doaj   +1 more source

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