نتایج جستجو برای: Linear Voltage Regulators (LVR)

تعداد نتایج: 631153  

Journal: :journal of electrical and computer engineering innovations 2014
babak shojaei tabatabaei parviz amiri

this paper presents a design of an uwb downconversion integrated cmos resistive ring mixer with linear voltage regulator (lvr), to supply required biasing voltages for the mixer section. the designed mixer circuit has been optimized for using in heart rate extraction system with microwave doppler radar at 2.4ghz frequency. this mixer needs 2 dc bias voltages equal to 0.5 and 1 volts for its bes...

Babak Shojaei Tabatabaei Parviz Amiri,

This paper presents a design of an UWB downconversion integrated CMOS resistive ring mixer with Linear Voltage Regulator (LVR), to supply required biasing voltages for the mixer section. The designed mixer circuit has been optimized for using in heart rate extraction system with microwave Doppler radar at 2.4GHz frequency. This mixer needs 2 DC bias voltages equal to 0.5 and 1 volts for its bes...

2001
Walt Jung Walt Kester James Bryant

Reference circuits and linear regulators actually have much in common. In fact, the latter could be functionally described as a reference circuit, but with greater current (or power) output. Accordingly, almost all of the specifications of the two circuit types have great commonality (even though the performance of references is usually tighter with regard to drift, accuracy, etc.). This chapte...

2014
Herminio Martínez-García

Linear-assisted DC/DC converters are structures that allow to take advantages of the two classic alternatives in the design of power supply systems: Voltage linear regulators (classic NPN topology or LDO –low dropout–) and switching DC/DC converters. This paper shows the proposal of a modified currentmode one-cycle control for linear-assisted DC/DC converters. The modified current-mode one-cycl...

2009
H. Martínez J. Silva-Martinez A. Conesa A. Poveda

This article describes a single-input dual output (SIDO) linear-assisted DC/DC converter. Linear-assisted DC/DC converters are structures that allow to take advantages of the two classic alternatives in the design of power supply systems: voltage linear regulators and switching DC/DC converters. Thanks to the combination of a switching converter and two voltage linear regulators, the proposed S...

Journal: :Circulation 2004
Hiroshi Tsuneyoshi Takeshi Nishina Takuya Nomoto Hideo Kanemitsu Rika Kawakami Oriyanhan Unimonh Kazunobu Nishimura Masashi Komeda

BACKGROUND Left ventricular aneurysm repair (LVR) reduces LV wall stress and improves LV function. However, as we reported previously, the initial improvement of LVR was short-term because of LV remodeling but could be maintained longer with postoperative use of an angiotensin-converting enzyme (ACE) inhibitor. Atrial natriuretic peptide (ANP) has been used to treat patients with heart failure ...

Journal: :International Journal of Advanced Computer Science and Applications 2020

Journal: :European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 2008
Hideo Kanemitsu Shinji Takai Hiroshi Tsuneyoshi Eiji Yoshikawa Takeshi Nishina Mizuo Miyazaki Tadashi Ikeda Masashi Komeda

OBJECTIVE Although left ventricular repair (LVR) has been widely performed, the initial improvement of LV function does not last because of LV remodeling. Recent studies have demonstrated that chymase, a local enzyme in the heart, promotes angiotensin II formation as well as activation of transforming growth factor (TGF)-beta, both of which facilitate myocardial fibrosis. Therefore, chymase blo...

Journal: :The American journal of occupational therapy : official publication of the American Occupational Therapy Association 2012
Robin M Deacy Hon K Yuen Elizabeth A Barstow Mary Warren Laura K Vogtle

OBJECTIVE We examined the preclinical curricular content pertaining to low vision rehabilitation (LVR) included in occupational therapy (OT) and occupational therapy assistant (OTA) programs. METHOD An e-mail survey containing questions about program structure and the extent of course material related to LVR in the curriculum was sent to directors of all accredited OT and OTA programs in the ...

2016
Mohammed Bedier Philippe Basset Dimitri Galayko

This paper presents a new implementation in ams 0.35μm HV technology of a complete energy management system for an electrostatic vibrational energy harvester (e-VEH). It is based on the Bennet’s doubler architecture and includes a load voltage regulator (LVR) and a smart Load Interface (LI) that are self-controlled with internal voltages for maximum power point tracking (MMPT). The CMOS impleme...

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