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相关概念视频

Voltage Doubler Circuit01:23

Voltage Doubler Circuit

862
A voltage doubler circuit integrates two main components: a clamping section and a rectifier section. The clamping section consists of a capacitor (C1) and a diode (D1), whereas the rectifier section is equipped with another diode (D2) and capacitor (C2). This circuit produces an output voltage with twice the amplitude of the sinusoidal input voltage.
862
DC Battery01:21

DC Battery

877
A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
877
Multiple Voltage Sources01:25

Multiple Voltage Sources

1.3K
Generally, a single battery is not enough to power some devices. In such cases, batteries can be combined in two ways: in series or in parallel.
In series, the positive terminal of one battery is connected to the negative terminal of another battery. Hence, the voltage of each battery is added to give the net voltage, which is increased because each battery boosts the electrons that enter it. The same current flows through each battery because they are connected in series.
Batteries are...
1.3K
Potentiometer01:30

Potentiometer

1.1K
Voltage and current measurements using a standard voltmeter and ammeter alter the circuit being measured either by drawing or resisting the current flow, which introduces uncertainties in the measurements. Null measurements balance the voltages so that no current flows through the measuring device and, therefore, no alterations occur in the measured circuit.
Suppose the emf of a battery needs to be measured. If the battery is directly connected to a standard voltmeter, the measured quantity is...
1.1K
Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

967
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
967
RC Circuits: Charging A Capacitor01:30

RC Circuits: Charging A Capacitor

3.8K
A circuit containing resistance and capacitance is called an RC circuit. A capacitor is an electrical component that stores electric charge by storing energy in an electric field. Consider a simple RC circuit having a DC (direct current) voltage source ε, a resistor R, a capacitor C, and a two-way position switch. In the circuit, the capacitor can be charged or discharged depending on the position of the switch.
When the switch is moved to connect the battery, the circuit reduces to a simple...
3.8K

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相关实验视频

Updated: Sep 13, 2025

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery
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低成本的电子直流负载模块设计用于电池容量评估.

Minh Nhat Huynh1,2, Quoc Minh Lam1,2, Cong Toai Truong1,2

  • 1Key Laboratory of Digital Control and System Engineering (DCSELab), Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology (HCMUT), Vietnam.

HardwareX
|July 30, 2025
PubMed
概括

研究人员开发了一种低成本的模块化电子直流负载,用于精确评估电池容量. 这个可访问的设备支持各种测试,为实验室和小企业增强电池研究.

关键词:
电池容量评估电池容量评估低成本的低成本的成本.模块化的管理系统管理系统.电力管理 电力管理电子直流 负载 电子直流 负载

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BtM, a Low-cost Open-source Datalogger to Estimate the Water Content of Nonvascular Cryptogams
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A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency
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相关实验视频

Last Updated: Sep 13, 2025

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BtM, a Low-cost Open-source Datalogger to Estimate the Water Content of Nonvascular Cryptogams
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A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency
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科学领域:

  • 电气工程 电气工程
  • 材料科学 材料科学 材料科学
  • 储能 储能 储能 储能 储能 储能

背景情况:

  • 精确的电池容量评估至关重要,因为储能技术的快速发展.
  • 在电池测试期间,电子直流负载装置对于模拟现实世界放电条件至关重要.
  • 商用直流负载系统昂贵,许多研究人员和小企业无法使用.

研究的目的:

  • 提出一个低成本的模块化电子直流负载解决方案.
  • 解决现有的开源替代方案在可扩展性,灵活性和易用性方面的局限性.
  • 为电池研究和评估提供一个强大的,用户友好的工具.

主要方法:

  • 模块化电子直流负载的设计和实施.
  • 开发一个用户友好的控制和监控界面.
  • 集成多个测试功能,包括恒定电流,恒定电阻和恒定功率模式.
  • 包括电池评估和高功率脉冲充电 (HPPC) 测试能力.

主要成果:

  • 拟议的电子直流负载模块可连续运行,功率高达50W.
  • 该系统提供模块化设计,允许可扩展性.
  • 该设备支持一系列重要的电池测试协议.
  • 开发的负载是坚固的,用户友好的,并且具有成本效益.

结论:

  • 开发的低成本模块化电子直流负载有效地满足了对可访问和多功能电池测试设备的需求.
  • 该解决方案增强了学术实验室,小型企业和独立研究人员在电池评估方面的能力.
  • 拟议的系统简化了复杂的电池测试程序,促进了储能领域的进一步研究和开发.