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Voltage-controlled constant-temperature crystal oscillating circuit

A constant temperature crystal oscillation and temperature control circuit technology, applied in the direction of power oscillators, electrical components, etc., can solve the problems of low power consumption and low operating voltage of new telecommunication equipment, and achieve low operating voltage, high integration, and temperature control accuracy high effect

Inactive Publication Date: 2011-05-18
郑州原创电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the constant temperature crystal oscillators on the market are powered by 12V and 5V, which is not suitable for the requirements of low working voltage and low power consumption of new telecommunication equipment.

Method used

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  • Voltage-controlled constant-temperature crystal oscillating circuit
  • Voltage-controlled constant-temperature crystal oscillating circuit
  • Voltage-controlled constant-temperature crystal oscillating circuit

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Experimental program
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Embodiment Construction

[0022] Below by specific embodiment and in conjunction with accompanying drawing, the present invention is described in further detail:

[0023] Such as figure 1 As shown, the present invention includes a power supply circuit, a voltage stabilizing circuit, a temperature control circuit, a main vibration circuit, an amplifying circuit and an output circuit; and the amplifying circuit, the main oscillator circuit is connected to the amplifying circuit, and the amplifying circuit is connected to the output circuit.

[0024] Such as figure 2 As shown, the main oscillator circuit adopts a typical capacitor three-point oscillator circuit, which is beneficial to the high-frequency clutter suppression of the constant temperature crystal oscillator, and is applicable to AT-cut and SC-cut crystals. The power supply voltage of the main oscillator circuit only needs 2.8V.

[0025] A high-stability signal is generated in the main oscillator circuit, and the generated signal is output f...

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PUM

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Abstract

The invention discloses a voltage-controlled constant-temperature crystal oscillating circuit which comprises a power circuit, a voltage-stabilizing circuit, a temperature control circuit, a main oscillating circuit, an amplifying circuit and an output circuit, wherein the power circuit is respectively connected with the voltage-stabilizing circuit and the output circuit, the voltage-stabilizing circuit is respectively connected with the temperature control circuit, the main oscillating circuit and the amplifying circuit, and the main oscillating circuit is connected with the amplifying circuit which is connected with the output circuit. The voltage-controlled constant-temperature crystal oscillating circuit has the characteristics of small size, low power consumption, high stability, low noise, high temperature control precision, high degree of integration and the like.

Description

technical field [0001] The invention relates to a crystal oscillator, in particular to a voltage-controlled constant temperature crystal oscillator circuit. Background technique [0002] Oven Controlled Crystal Oscillator (Oven Controlled Crystal Oscillator) is currently the crystal oscillator with the highest accuracy and stability. It has the characteristics of low aging rate, good temperature stability, and low phase noise, so it is widely used in global positioning systems, communications, Metering, telemetry, remote control and other occasions that require high frequency stability. At present, most of the constant temperature crystal oscillators on the market are powered by 12V and 5V, which are not suitable for the requirements of low working voltage and low power consumption of new telecommunication equipment. Contents of the invention [0003] The object of the present invention is to provide a voltage-controlled constant temperature crystal oscillation circuit wi...

Claims

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Application Information

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IPC IPC(8): H03B5/04
Inventor 韩建设刘灵芝
Owner 郑州原创电子科技有限公司