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An RC sine wave oscillator output voltage regulation and control circuit

A sine wave oscillation and output voltage technology, which is applied to power oscillators, electrical components, etc., can solve the problems of fixed output voltage and cannot be automatically adjusted, and achieve the effect of convenient control

Inactive Publication Date: 2019-06-04
付小强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a control circuit for the output voltage of an RC sine wave oscillator, which solves the problem that the output voltage of the existing sine wave oscillator composed of R, C operational amplifiers, etc. is fixed and cannot be automatically adjusted.

Method used

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  • An RC sine wave oscillator output voltage regulation and control circuit

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Embodiment Construction

[0010] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0011] The invention provides a control circuit for the output voltage of an RC sine wave oscillator, such as figure 1 As shown, it includes sampling circuit 1, control circuit 2 and two-phase oscillation circuit 3. Sampling circuit 1 is connected to control circuit 2, and control circuit 2 is connected to two-phase oscillation circuit 3, so as to control the output voltage of the sine wave generator as expected value.

[0012] The control circuit 2 includes two connected amplifiers, wherein the positive input of the upper amplifier is an externally controlled DC voltage, the negative input is connected to the resistor divider of the sampling circuit 1, and the negative input and output are connected to each other. The resistors and capacitors connected in series ensure the stable operation of the whole system.

[0013] The output terminals...

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Abstract

The invention relates to the technical field of sine wave oscillator output voltage auxiliary circuits, and particularly discloses an RC sine wave oscillator output voltage regulation and control circuit which comprises a sampling circuit, a regulation and control circuit and a two-phase oscillation circuit, the sampling circuit is connected with the regulation and control circuit, and the regulation and control circuit is connected with the two-phase oscillation circuit. The regulating circuit is used in cooperation with a sine wave oscillator composed of an R operational amplifier, a C operational amplifier and the like, so that voltage generated by oscillation can be controlled by an external direct-current voltage, and the voltage can be continuously and accurately regulated and controlled between 0 and the maximum value. Therefore, the functions of voltage stabilization, voltage regulation, current stabilization, power stabilization and the like can be conveniently realized by matching with the amplifier. And the control of a computer can be conveniently accepted, a plurality of regulation and control functions are realized, and a plurality of application requirements are met.

Description

technical field [0001] The invention belongs to the technical field of a sine wave oscillator output voltage auxiliary circuit, in particular to an RC sine wave oscillator output voltage regulation circuit. Background technique [0002] The sine wave oscillator composed of R and C operational amplifiers has the advantages of stable frequency, good waveform and stable voltage. But the voltage it generates is fixed, which is inconvenient in many applications. Contents of the invention [0003] The purpose of the present invention is to provide a control circuit for the output voltage of an RC sine wave oscillator, which solves the problem that the output voltage of the existing sine wave oscillator composed of R and C operational amplifiers is fixed and cannot be automatically adjusted. [0004] The technical scheme adopted by the invention is: comprising a sampling circuit, a control circuit and a two-phase oscillation circuit, the sampling circuit is connected with the co...

Claims

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Application Information

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IPC IPC(8): H03B5/24
Inventor 付小强
Owner 付小强
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