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Cross-coupling voltage-controlled oscillator with anti-irradiation function

A voltage-controlled oscillator and cross-coupling technology, which is applied in the automatic control of power and electrical components, etc., can solve the problems of lack of anti-irradiation function, frequency divider output error, and influence on circuit performance, so as to suppress the single event effect , the effect of reducing the soft error rate

Active Publication Date: 2019-04-02
NAT UNIV OF DEFENSE TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Voltage-controlled oscillator VCO is an important part of integrated circuits. In the prior art, voltage-controlled oscillators usually do not have the anti-irradiation function. Once the radiation is affected, the output of the frequency divider will be affected by the single-event effect. error, can seriously affect the performance of the circuit

Method used

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  • Cross-coupling voltage-controlled oscillator with anti-irradiation function
  • Cross-coupling voltage-controlled oscillator with anti-irradiation function
  • Cross-coupling voltage-controlled oscillator with anti-irradiation function

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0024] Such as figure 1 As shown, the cross-coupled voltage-controlled oscillator with anti-radiation function in this embodiment includes a VCO unit 1, a signal conversion unit 2, and a voting unit 3 connected in sequence. The VCO unit 1 includes three VCO circuits (VCO0~VCO2), Each VCO circuit outputs one current output signal of the same phase to the signal conversion unit 2, and the signal conversion unit 2 receives three current output signals and converts them into voltage signals, and the converted three voltage output signals are provided to the voting unit 3, The final voltage output signal is output by the voter unit 3, and the voltage output signal different from the other two channels is shielded. After the output signals of the same phase in each VC...

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Abstract

The invention discloses a cross-coupling voltage-controlled oscillator with an anti-irradiation function. The cross-coupling voltage-controlled oscillator comprises a VCO unit, a signal conversion unit and a voting device unit which are sequentially connected. The VCO unit comprises three or more VCO circuits, and each VCO circuit outputs a path of current output signal of the same phase to the signal conversion unit. The signal conversion unit receives the three paths of current output signals and converts them into voltage signals. The three paths of voltage output signals obtained through conversion are supplied to the voting device unit, and the voting device unit selects and outputs the final voltage output signal. The cross-coupling voltage-controlled oscillator has the advantages ofsimple structure, low cost, anti-irradiation function, low soft error rate and the like.

Description

technical field [0001] The invention relates to the technical field of voltage-controlled oscillators, in particular to a cross-coupling voltage-controlled oscillator with an anti-irradiation function. Background technique [0002] In order to meet the demand for integrated circuits with higher integration, more functions and lower power consumption, the feature size and operating voltage of integrated circuits have been continuously reduced, resulting in a sharp increase in the radiation sensitivity of circuits. Voltage-controlled oscillator VCO is an important part of integrated circuits. In the prior art, voltage-controlled oscillators usually do not have the anti-irradiation function. Once the radiation is affected, the output of the frequency divider will be affected by the single-event effect. Mistakes can seriously affect the performance of the circuit. Therefore, there is an urgent need to provide a voltage-controlled oscillator with an anti-irradiation function, so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03L7/099H03L7/26
CPCH03L7/099H03L7/26
Inventor 郭阳袁珩洲陈建军梁斌池雅庆陈希
Owner NAT UNIV OF DEFENSE TECH
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