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相关概念视频

Maximum Power Transfer01:16

Maximum Power Transfer

239
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
239
Biasing of P-N Junction01:16

Biasing of P-N Junction

466
The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
466
P-N junction01:11

P-N junction

488
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
488
Diode: Reverse bias01:14

Diode: Reverse bias

627
A diode is reverse-biased when the positive terminal of an external voltage source is connected to the n-type material and the negative terminal to the p-type material. This configuration opposes the natural direction of current flow through the diode, effectively increasing the width of the depletion region and the barrier potential. The reverse bias condition produces a minimal leakage current, primarily due to minority charge carriers. This leakage becomes significant when the reverse...
627
Diode: Forward bias01:20

Diode: Forward bias

934
In semiconductor devices, diodes play a crucial role in directing current flow, and its operation is primarily categorized into forward bias and reverse bias. A diode is said to be forward-biased when its p-type region is connected to the positive terminal of a battery and its n-type region is linked to the negative terminal. This configuration reduces the potential barrier within the diode, allowing current to flow easily from the p to the n-type region.
The behavior of a diode in forward bias...
934
Batteries and Fuel Cells03:12

Batteries and Fuel Cells

27.2K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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相关实验视频

Updated: Jun 14, 2025

Optrode Array for Simultaneous Optogenetic Modulation and Electrical Neural Recording
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可重新配置的基于MIMO的自动供电,无电池的光通信系统.

Jose Ilton De Oliveira Filho1,2, Abderrahmen Trichili3, Omar Alkhazragi3

  • 1Computer, Electrical and Mathematical Sciences & Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia. jose.deoliveirafilho@kaust.edu.sa.

Light, science & applications
|August 28, 2024
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种用于物联网 (IoT) 设备的同时光波信息和功率传输 (SLIPT) 的新系统. 该系统有效地收集能量并传输数据,使其能够在远程环境中自动供电自主运行.

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Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver
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科学领域:

  • 光学无线通信的无线通信
  • 收集能源 收集能源
  • 物联网 (IoT) 的物联网 (IoT) 的物联网.

背景情况:

  • 光学无线通信在保持稳定的连接和远程设备的电源方面面临着挑战.
  • 同时光波信息和功率传输 (SLIPT) 提供了连续充电和数据连接的解决方案.
  • 全向接收器对于改善SLIPT系统的电力预算和连接稳定性至关重要.

研究的目的:

  • 设计和演示使用光探测器阵列用于增强信息解码和能源采集的多重SLIPT系统.
  • 通过基于象限的光探测器操作来调查系统对光束跟踪和空间多样性的能力.
  • 探索不同的配置,以优化数据速率和电力采集效率.

主要方法:

  • 一个3x3的光电探测器阵列 (PDs) 设计用于同时解码信息和收集能量.
  • PDs被配置为在光导和光伏模式之间切换,以实现灵活的操作.
  • 该系统在较小 (高数据速率) 和较大的 (高功率) 版本中进行了测试,并对光束跟踪进行了象限特定测试.

主要成果:

  • 一个自动供电设备实现了25.7 Mbps的总数据速率 (SISO) 和85.2 Mbps的净数据速率 (MIMO).
  • 该系统在标准照明下获得了高达87.33兆瓦的功率,超过了运营需求.
  • 已证明能够解码信息并从特定的PD象限中收集能量,用于光束跟踪.

结论:

  • 开发的SLIPT系统有效地实现了物联网设备的同时数据传输和能量收集.
  • 该系统的设计支持物联网设备在具有挑战性的环境和潜在的空间应用中的自主操作.
  • 这项研究推进了在偏远和苛刻的环境中实现自给自足,连接设备的潜力.