Related Experiment Video
Updated: Sep 6, 2025
08:07
Assembly and Characterization of Biomolecular Memristors Consisting of Ion Channel-doped Lipid Membranes
Published on: March 9, 2019
7.9K
Design of the Threshold-Controllable Memristor Emulator Based on NDR Characteristics
Mi Lin1, Wenyao Luo1, Luping Li1
1School of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China.
Micromachines
|June 24, 2022
Summary
A new memristor emulator using negative differential resistance (NDR) offers a flexible and cost-effective alternative for memristor research. This controllable threshold circuit enables adaptable memristor circuit designs.
Area of Science:
- Electronics
- Materials Science
- Solid-State Physics
Background:
- High manufacturing costs of memristors necessitate cost-effective emulators for research.
- Memristor emulators are crucial for advancing memristor-based applications.
Purpose of the Study:
- To propose a novel threshold-type memristor emulator.
- To demonstrate a flexible and controllable memristor circuit design.
Main Methods:
- Utilizing negative differential resistance (NDR) characteristics.
- Employing a R-HBT (Resistor-Heterojunction Bipolar Transistor) network as the core component.
- Implementing a control voltage for threshold adjustment.
Main Results:
- The proposed memristor emulator exhibits controllable threshold characteristics.
- The circuit achieves an operation frequency of approximately 250 kHz.
- Experimental validation confirms the emulator's feasibility and correctness.
Conclusions:
- The NDR-based memristor emulator provides a flexible and feasible alternative to traditional memristors.
- Controllable threshold design enhances adaptability in memristor circuit applications.
- This approach reduces reliance on expensive memristor fabrication.
Related Concept Videos
01:25MOS Capacitor
946
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
946
01:14Modeling of Diode Reverse Characteristics
362
In electronic circuits, reverse-biased diode configurations are critical for regulating voltage levels. Zener diodes exploit the reverse breakdown phenomenon and exhibit a controlled breakdown at a specific Zener voltage (VZ). They are designed to maintain a constant voltage across their terminals and are commonly used for voltage regulation in circuits.
When a reverse voltage applied to a Zener diode exceeds its breakdown voltage, the diode enters the breakdown region. At this point, the...
When a reverse voltage applied to a Zener diode exceeds its breakdown voltage, the diode enters the breakdown region. At this point, the...
362
01:14Design Example: Frog Muscle Response
310
A student is tasked to work on an intriguing experiment involving an RL (Resistor-Inductor) circuit to study the muscle response of a frog's leg to electrical stimulation. The RL circuit plays a crucial role in this experiment, providing the means to control and measure the electrical impulses that trigger muscle contraction.
When the switch connecting the RL circuit is closed, a brief muscle contraction is observed. This is because, at a steady state, the inductor acts like a short...
When the switch connecting the RL circuit is closed, a brief muscle contraction is observed. This is because, at a steady state, the inductor acts like a short...
310
01:14Design Example: Resistive Touchscreen
423
A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
423
01:26PD Controller: Design
341
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
341
01:19Modeling of Diode Forward Characteristics
640
Understanding the behavior of diodes when forward-biased is a fundamental aspect of electronic circuit design and analysis. This analysis primarily utilizes two models: the exponential diode model and the constant-voltage-drop model. The exponential model comes into play when the source voltage exceeds 0.5 volts, pushing the diode current to rise exponentially above the saturation current. This relationship is graphically depicted in the current-voltage (I-V) curve, illustrating the diode's...
640