Memristor based frequency-adjustable sine wave oscillating circuit

A technology of oscillating circuits and memristors, applied in power oscillators, electrical components, etc., can solve problems affecting the stability of oscillating circuits, LC sine wave oscillating circuits are not easy to start, and are not easy to automatically control, etc., to achieve stability High, easy vibration effect

Inactive Publication Date: 2013-04-03
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the amplitude balance condition requires high matching of component parameters, the traditional LC sine wave oscillation circuit is not easy to start oscillation
In order to realize the adjustable oscillation frequency, variable capacitors are generally used to replace the capacitance in the frequency selection network, and the osc

Method used

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  • Memristor based frequency-adjustable sine wave oscillating circuit
  • Memristor based frequency-adjustable sine wave oscillating circuit
  • Memristor based frequency-adjustable sine wave oscillating circuit

Examples

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Embodiment

[0024] A memristor-based frequency-tunable sine wave oscillator circuit. like figure 1 As shown, the circuit is composed of a common emitter amplifier circuit 1, a frequency selection network 3 and a control module 2, and the frequency selection network 3 is connected to the common emitter amplifier circuit 1 and the control module 2 respectively. The input terminal V of the common emitter amplifier circuit 1 1i and the output V 1o respectively connected to the frequency selection network 3, the output terminal V of the common emitter amplifier circuit 1 1o with peripheral circuit input V w connect.

[0025] The frequency selection network 3 is composed of a memory capacitance equivalent circuit 4 , an inductance 5 and a memory induction equivalent circuit 6 . Terminal C of the memory capacity equivalent circuit 4 m1 Terminal L of the equivalent circuit with the memory sensor 6 m1 connection, terminal L of the mem-inductive equivalent circuit 6 m2 terminal L with induc...

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Abstract

The invention belongs to the technical field of oscillating circuits and particularly relates to a memristor based frequency-adjustable sine wave oscillating circuit. The technical scheme includes that the memristor based frequency-adjustable sine wave oscillating circuit is formed by a common-emitter cascade amplifying circuit (1), a frequency selective network (3) and a control module (2), wherein the frequency selective network (3) is connected with the common-emitter cascade amplifying circuit (1) and the control module (2). An input end V1i and an output end V1o of the common-emitter cascade amplifying circuit (1) are respectively connected with the frequency selective network (3), and an output end V1o of the common-emitter cascade amplifying circuit (1) is connected with an input end Vw of a peripheral circuit. The memristor based frequency-adjustable sine wave oscillating circuit has the advantages of easiness in oscillation starting, high stability and easiness in realizing automatic control.

Description

technical field [0001] The invention belongs to the technical field of oscillation circuits. In particular, it relates to a memristor-based frequency-adjustable sine wave oscillation circuit. Background technique [0002] The current whose size and direction change with the cycle is called an oscillating current, and a circuit that can generate an oscillating current is called an oscillating circuit. There are many types of oscillating circuits. According to the waveform of the signal, they can be divided into sine wave and non-sinusoidal oscillating circuits. Usually, the sine wave oscillating circuit composed of inductors and capacitors in the frequency selection network is called LC sine wave oscillating circuit. From a structural point of view, the sine wave oscillating circuit is a positive feedback amplifier circuit with a frequency selection network without an input signal. To make the sine wave oscillating circuit produce continuous oscillation, the conditions of am...

Claims

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Application Information

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IPC IPC(8): H03B5/04
Inventor 甘朝晖尹力朱任杰王智
Owner WUHAN UNIV OF SCI & TECH
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