A high-frequency narrow pulse detection and locking circuit and method
A technology of locking circuit and narrow pulse, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of high cost and complicated detection circuit design, and achieve the effect of low cost, wide application range and high reliability
Active Publication Date: 2021-09-03
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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[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
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[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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The embodiment of the present invention discloses a high-frequency narrow pulse detection locking circuit and method. The circuit includes a control unit, a locking and unlocking unit, a voltage dividing unit and a protection unit. The control unit is used for the circuit to detect the first When the high frequency narrow pulse signal is output high level, the circuit detects the second high frequency narrow pulse signal and output low level, the locking and unlocking unit is used to lock the first high frequency narrow pulse signal or unlock the first high narrow frequency pulse signal, the voltage dividing unit is used to provide divided voltage for the locking and unlocking unit, and the protection unit is used for overvoltage protection; when the circuit detects the first high frequency narrow pulse signal, the first high The narrow-frequency 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 invention uses discrete components to detect high-frequency narrow pulses, has simple circuit design, high reliability, low cost and wide 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...
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IPC IPC(8): G01R31/00
CPCG01R31/003
Inventor 王旭
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD