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High stability sine wave signal generator

A signal generator, high stability technology, applied in the direction of sinusoidal oscillation train generator, electrical components, pulse shaping, etc., can solve the problems of sine wave signal frequency instability, signal amplitude change, etc., to improve the operation accuracy and The effect of stability

Inactive Publication Date: 2011-04-27
邓加慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the insufficiency of the sine wave signal output by the existing sine wave signal generator, which is unstable in frequency and the signal amplitude is easily affected by the environment, the present invention provides a sine wave signal generator. The sine wave signal generator not only It can provide a sine wave signal with extremely stable frequency, and its sine wave signal amplitude is also quite stable

Method used

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Examples

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Embodiment Construction

[0010] figure 2 In the shown embodiment, the output terminal of the inverter (IC1-1) in the quartz oscillator circuit (1) is electrically connected with the input terminal of the inverter (IC1-2) in the shaping circuit (2), and the resistor (R1 ), one end of the capacitor (C2), one end of the quartz crystal oscillator (B1) are electrically connected to the output terminal of the inverter (lC1-1), the other end of the resistor (R1), one end of the capacitor (C1), and the quartz crystal oscillator The other end of (B1) is electrically connected to the input end of the inverter (IC1-1), the other ends of the capacitors (C1, C2) are grounded respectively, and the output of the inverter (IC1-2) in the shaping circuit (2) terminal is electrically connected with the pin (1EN) of the counter (IC2) in the frequency converter (3), and the pin (1Q1) of the counter (IC2) in the frequency converter (3) is connected with the inverter (IC1) in the filter circuit (4) The input terminal of -...

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Abstract

The invention relates to a high stability sine wave signal generator. In the circuit board of the signal generator, the output end of a quartz oscillating circuit is electrically connected with the input end of a shaping circuit (2); the output end of the shaping circuit (2) is electrically connected with the input end of a frequency converter (3); the output end of the frequency converter (3) is electrically connected with the input end of a filter circuit (4); the output end of the filter circuit (4) is electrically connected with the input end of a signal output circuit (5); one end of a resistor (R2) in the filter circuit (4) and one end of a capacitor (C3) are electrically connected with one end of an inductor (L1), the other end of the capacitor (C3) and the other end of the inductor (L1) are electrically connected with the ground; and the output end of an inverter (IC1-3) is electrically connected with the other end of the resistor (R2), and a high stability power supply (6) is a power supply with stable voltage. Therefore, the frequency and amplitude of the sine wave signal can be extremely stable.

Description

Technical field [0001] The invention relates to a sine wave signal generator, in particular to a high stability sine wave signal generator. Background technique [0002] At present, the known sine wave signal is often obtained by using an analog amplifier, through a circuit phase shift, so that the output terminal performs positive feedback to the input terminal, and generates oscillation, thereby forming a sine wave signal output. This method has two disadvantages. One is that the frequency of the output sine wave signal is unstable; the other is that the signal amplitude is unstable. Invention patent application number: 200610039203.7 The high-precision frequency sine wave generator uses a crystal oscillator to stabilize the frequency, which improves the stability of the signal frequency, but its sine wave amplitude is still easily affected by the environment. In industrial applications where the requirements for the stability of the sine wave amplitude are also very stri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03B25/00H03K3/80H03K5/01
Inventor 邓加慧
Owner 邓加慧
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