基于memristors的可调节的主动维恩波器
Elena Solovyeva1, Artyom Serdyuk1, Yury Inshakov1
1Department of Electrical Engineering Theory, Saint Petersburg Electrotechnical University "LETI", 197022 St. Petersburg, Russia.
Micromachines
|July 30, 2025
概括
记忆器为电子设备提供了卓越的调. 这项研究展示了一种具有独立调节的频率特征的内存维恩桥过器,通过LTspice模拟验证了高精度.
科学领域:
- 电气工程 电气工程
- 电子 电子 电子 电子 电子 电子 电子
- 信号处理 信号处理
背景情况:
- 可调节的电子设备在各种技术领域都至关重要.
- 记忆电阻器提供可编程电位计功能,比传统的机械或数字电位计提供更高的调质量.
- 主动维恩桥过器广泛用于信号处理应用.
研究的目的:
- 为了研究一个集成记忆器的活跃的维也纳桥带通波器的性能.
- 分析关键频率特征的可调性:共振频率,质量因子和增益.
- 通过模拟验证分析模型并评估基于memristor的调整的精度.
主要方法:
- 过分析的节点电压方法.
- 对于频率依赖参数的分析表达式的导出.
- LTspice模拟以模拟不同的memristance值的过器行为.
- 模拟结果与分析预测的比较.
主要成果:
- 获得了共振频率,质量因子和增益对维恩电路和电压分离器参数的分析依赖.
- 证明了过器的共振频率,质量因子和增益的独立调整.
- 模拟的频率特征显示,在不同的memristance值中,与分析结果的偏差小于1%.
结论:
- 记忆器可以在活跃的维恩桥过器中实现高度精确和独立调节的频率特征.
- 与传统电位计相比,memristive Wien波器提供了卓越的性能和调能力.
- 这项研究证实了模拟和调整内存过器的高精度,为先进的可调节电子设备铺平了道路.
相关概念视频
01:25Active Filters
926
Active filters are electronic circuits that use operational amplifiers (op-amps), resistors, and capacitors to filter out unwanted frequency components from a signal. A first-order low-pass active filter is designed to pass signals with a frequency lower than a certain cutoff frequency and attenuate frequencies higher than that cutoff frequency. The transfer function for a first-order low-pass active filter is:
926
01:27Passive Filters
607
Passive filters are utilized to shape the frequency spectrum of signals across a diverse array of applications. These filters, using only passive elements like resistors (R), inductors (L), and capacitors (C), are capable of selectively allowing or blocking certain frequency ranges without the need for external power sources.
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
607
01:20Design 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.
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
01:22Biasing of FET
370
Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
370
01:27Biasing of Metal-Semiconductor Junctions
335
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
335
01:17MOSFET Amplifiers
222
The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...
222