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Current supply system, ADC (analog-digital converter) using current supply system and current supplying method

A supply system, analog-digital technology, applied in the field of current supply system, can solve the problems of capacitor leakage, loss of accuracy of dynamic bias circuit, etc., to avoid leakage current, have applicability, and avoid excessive current.

Active Publication Date: 2014-08-27
FARADAY TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the frequency of the signal is too low, the capacitor may leak when charging
Therefore, the dynamic biasing circuit may lose accuracy at low signal frequencies

Method used

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  • Current supply system, ADC (analog-digital converter) using current supply system and current supplying method
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  • Current supply system, ADC (analog-digital converter) using current supply system and current supplying method

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Embodiment Construction

[0029] Certain terms are used in the specification and claims above to refer to particular elements. It should be understood by those skilled in the art that hardware manufacturers may use different terms to refer to the same element. This specification and the above-mentioned scope of patent application do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. The "comprising" mentioned throughout the specification and the above-mentioned claims is an open-ended term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" here includes any direct and indirect means of electrical connection. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or...

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Abstract

A current supply system for providing an output current, including: a frequency detection circuit for receiving at least one input signal and detecting the frequency of the input signal; a frequency control current supply circuit, when the frequency of the input signal When the frequency of the input signal is within a first predetermined range, the output current is provided; and a predetermined current providing circuit provides a first predetermined current value when the frequency of the input signal is not within the first predetermined range. of the output current.

Description

technical field [0001] The present invention relates to a current supply system, an analog-to-digital converter using the current supply system to provide a bias current, and a current supply method, and particularly relates to a current supply system that provides a fixed current at a low frequency, and uses the current supply system to provide a bias current. An analog-to-digital converter of piezoelectric current and a current supply method. Background technique [0002] Generally, a pipelined ADC (Analog to Digital converter, analog-to-digital converter) uses a dynamic bias circuit as a built-in bias circuit. In this way, the pipeline ADC can have different power for different operating frequencies, so that the power consumption can be optimized. Through such a mechanism, the pipeline ADC can be operated at different frequencies without designing different pipeline ADCs for different operating frequencies. [0003] ADCs usually use a voltage-to-current circuit and a fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/56H03M1/12
Inventor 朱彦昕吴孟轩
Owner FARADAY TECH CORP