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High-frequency narrow pulse detection locking circuit and method

A locking circuit and narrow pulse technology, which is applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of high cost and complex detection circuit design, and achieve the effect of low cost, wide application range and high reliability

Active Publication Date: 2020-02-28
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the embodiment of the present invention, a high-frequency narrow pulse detection and locking circuit and method are provided to solve the problems of complex design and high cost of the existing detection circuit

Method used

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  • High-frequency narrow pulse detection locking circuit and method
  • High-frequency narrow pulse detection locking circuit and method
  • High-frequency narrow pulse detection locking circuit and method

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Embodiment Construction

[0030] In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily lim...

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Abstract

The embodiment of the invention discloses a high-frequency narrow pulse detection locking circuit and method. The circuit comprises a control unit, a locking and unlocking unit, a voltage division unit and a protection unit; the control unit is used for outputting a high level when the circuit detects a first high-frequency narrow pulse signal; the circuit outputs a low level when detecting a second high-frequency narrow pulse signal, the locking and unlocking unit is used for locking a first high-frequency narrow pulse signal or unlocking the first high-frequency narrow pulse signal, the voltage dividing unit is used for providing a divided voltage for the locking and unlocking unit, and the protection unit is used for overvoltage protection. According to the method, when the circuit detects the first high-frequency narrow pulse signal, the first high-frequency narrow pulse signal is locked; when the circuit detects the second high-frequency narrow pulse signal, the first high-frequency narrow pulse signal is unlocked. The high-frequency narrow pulse detection circuit adopts discrete components to detect high-frequency narrow pulses, and is simple in circuit design, high in reliability, low in cost and wide in application range.

Description

technical field [0001] The invention relates to the technical field of pulse detection, in particular to a high-frequency narrow pulse detection and locking circuit and method. Background technique [0002] High-frequency narrow pulses are discontinuous and consist of irregular pulses or noise spikes with short duration and large amplitude. Impulse noise can be generated for a variety of reasons, including electromagnetic interference, failures and defects in communication systems, or when electrical switches and relays in communication systems change state. [0003] Impulse noise is generally only a minor annoyance to analog data. But in digital data communications, impulse noise is the main cause of errors. Impulse noise, its duration is less than 1 second, and the peak value of noise intensity is greater than 10dB than its root mean square value. Impulse noise can burst suddenly and disappear quickly, so the pulse needs to be detected and locked on. [0004] In genera...

Claims

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/003
Inventor 王旭
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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