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Square wave signal source

A signal source, square wave technology, applied in the direction of measuring devices, instruments, electric pulse generator circuits, etc., can solve the problem that the square wave signal source cannot be completely replaced, and achieve the effect of low price, stable working performance, and simple circuit structure

Inactive Publication Date: 2015-07-22
周玉林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the various signals simulated by these computer software are mostly for amateur use, and the quality of the sent signal has a lot to do with the sound card, and it cannot completely replace the role of the square wave signal source.

Method used

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  • Square wave signal source

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Embodiment Construction

[0012] According to attached figure 1 The working principle diagram and accompanying drawings of the square wave signal source circuit shown, and the connection relationship between the components in each part of the circuit described in the summary of the invention, as well as the technical parameter requirements of the components and the main points of circuit production described in the implementation mode The present invention can be realized by implementing it, and the related technologies of the present invention will be further described below in conjunction with the embodiments.

[0013] Technical parameters and selection requirements of components

[0014] IC1 is a time base circuit, the selected model is NE555, the package is DIP, and the pins are 8 pins. The functions of each pin: 1 pin is the circuit ground GND; 2 pins are the trigger end; 3 pins are the output end; Pin 6 is the control voltage; pin 6 is the threshold (threshold); pin 7 is the discharge terminal; ...

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Abstract

The invention discloses a square wave signal source. The square wave signal source is characterized by comprising a 9V direct-current power supply, a mono-stable and oscillation frequency regulating circuit, wherein the model of a time-based circuit IC1 of the mono-stable and oscillation frequency regulating circuit is NE555. According to the embodiment of the invention, the square wave signal source manufactured by utilizing a multi-vibrator circuit is used for measuring circuit-isolated technical indexes and related circuit. The square wave signal source disclosed by the invention can meet the measurement requirements of common circuit board technical indexes in signal waveform requirement, signal output amplitude (peak-peak value P-P), signal distortion, harmonic wave and the like. The square wave signal source is an electronic apparatus which is simple in circuit structure, stable in working performance, low in price and good to use. All circuits of the square wave signal source are manufactured by common apparatus, so that the manufacturing cost is only dozens of Yuan, and the square wave signal source is suitable for large-scale development of a plant.

Description

technical field [0001] The invention belongs to the field of electronic technology and electronic instruments, and relates to a square wave signal source. Background technique [0002] Using professional instruments to measure the technical indicators of electronic circuits (equipment), the measurement effect is much better than using ordinary multimeters to estimate. For the design, debugging or maintenance of some circuits, the signal generator has an important role in measuring circuit technical indicators. irreplaceable role. The square wave signal source is actually a multivibrator circuit. The main types of oscillation circuits are: LC oscillation circuit, RC oscillation circuit and so on. At present, there are many signal generator software that can be used on the computer in the market, and the software can be installed and run on the computer. However, the various signals simulated by these computer software are mostly for amateur use, and the quality of the trans...

Claims

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Application Information

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IPC IPC(8): H03K3/02G01R1/28
Inventor 周玉林
Owner 周玉林
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