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Multi-bias voltage-controlled oscillator with radiation-resistant function

A voltage-controlled oscillator, anti-radiation technology, applied in power oscillator, automatic power control, electrical components and other directions, can solve the problems of lack of anti-radiation function, affecting circuit performance, frequency divider output error, etc. Achieve the effect of suppressing single event effect, reducing influence, and reducing frequency offset

Active Publication Date: 2019-03-29
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • 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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  • Multi-bias voltage-controlled oscillator with radiation-resistant function
  • Multi-bias voltage-controlled oscillator with radiation-resistant function
  • Multi-bias voltage-controlled oscillator with radiation-resistant 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] like figure 1 As shown, the multi-bias voltage-controlled oscillator with anti-irradiation function in this embodiment includes four bias circuits 1 (BIAS) and four delay units 2 (CELL0~CELL3), and each bias circuit 1 is connected to A delay unit 2, each delay unit 2 is ring-connected to form a ring oscillator, each bias circuit 1 receives an input control voltage, generates a bias voltage and supplies it to the corresponding delay unit 2.

[0025] The ring oscillation of the voltage-controlled oscillator VCO in this embodiment is composed of four differential delay units 2, a bias circuit 1 is configured for each delay unit 2, and the ring is controlled by four relatively independently operated bias circuits 1. The delay unit 2 inside the oscillator, wh...

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Abstract

The invention discloses a multi-bias voltage-controlled oscillator with a radiation-resistant function. The multi-bias voltage-controlled oscillator comprises a plurality of bias circuits and a plurality of time delay units; each bias circuit is correspondingly connected with a time delay unit; the time delay units are in ring connection to form an annular oscillator; and each bias circuit receives an input control voltage, generates a bias voltage and then provides the bias voltage for the corresponding time delay unit. The multi-bias voltage-controlled oscillator has the advantages of beingsimple in structure, low in cost, resistant to radiation, low in 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 multi-bias voltage-controlled oscillator with 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 as to ...

Claims

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Application Information

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IPC IPC(8): H03L7/099H03B5/36
CPCH03B5/364H03L7/099
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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