相关概念视频
Voltage Doubler Circuit
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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.
577
Transformers with Off-Nominal Turns Ratios
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In scenarios involving parallel transformers with disparate ratings, developing per-unit models requires accommodating off-nominal turns ratios. This situation arises when the selected base voltages are not proportional to the transformer’s voltage ratings. Consider a transformer where the rated voltages are related by the term a. If the chosen voltage bases satisfy a relationship involving term b, term c is defined as the ratio of these bases. This ratio is then substituted into the...
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Design Example: Capacitance Multiplier Circuit
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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.
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.
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Power Factor Correction
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The power transmission to a factory involves the transfer of apparent power, a combination of active and reactive power. The power factor measures how effectively electrical power is converted into useful work output. The ratio of the real power (KW) that does the work to the apparent power (KVA) supplied to the circuit.
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Equivalent Capacitance
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Multiple capacitors can be connected in a circuit in series or parallel configuration. When the capacitor combination is connected to a battery, the potential drop across each capacitor and the magnitude of charge stored in the individual capacitor depends on the type of the connection. The capacitor combination is replaced by a single equivalent capacitor that stores the same amount of charge as the combination for a given potential difference.
The following strategies are adopted to calculate...
The following strategies are adopted to calculate...
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Switching of BJT
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Switching behavior in Bipolar Junction Transistors (BJTs) is a fundamental aspect utilized in various electronic circuits, particularly for digital logic applications like switches and amplifiers. In a typical switching circuit, a BJT alternates between cut-off and saturation modes, corresponding to the "off" and "on" states, respectively, thus behaving like an ideal switch.
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are...
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are...
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使用立方体静态转换比率的buck转换器
Delia-Anca Botila1, Ioana-Monica Pop-Calimanu1, Dan Lascu1
1Applied Electronics Department, Politehnica University Timisoara, 300223 Timișoara, Romania.
Sensors (Basel, Switzerland)
|January 26, 2024
概括
本研究介绍了一种具有简单控制系统的新型立方桶转换器. 与现有设计相比,新拓提供了更高的效率和更低的半导体应力.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 电路设计 电路设计
背景情况:
- 传统的转换器在效率和电压调节方面面临限制.
- 现有的单晶体管buck类型拓通常表现出更高的半导体应力.
- 需要先进的直流-直流转换器,具有更好的性能特征.
研究的目的:
- 引入和分析一种具有立方立体静态转换比率的新型降级转换器.
- 为了证明拟议拓的简化控制和减少半导体应力.
- 通过模拟和实验提供设计方程并验证转换器的性能.
主要方法:
- 静态直流分析以确定转换比率和半导体应力.
- 在输入/输出电压和功率方面导出半导体应力.
- 包含传导损失的状态空间分析.
- 开发一个计算个人功耗消散的程序.
- 通过计算机模拟和12V-10W实验原型进行验证.
主要成果:
- 拟议的立方美元转换器实现了立方性质的静态转换比.
- 与其他拓相比,输出电压在同一工作周期中更接近输入电压.
- 半导体电压应力是可以接受的,并且低于其他立方圆形拓.
- 提供了详细的设计方程和功耗消耗计算程序.
- 实验结果证实了原型的可行性和性能.
结论:
- 新型立方美元转换器为现有拓提供了一个有前途的替代方案.
- 其简单的控制和减少的半导体应力使其适用于各种应用.
- 提供的设计指南和验证的性能支持其实际实施.


