An ultra-high-speed pulse signal generator

Abstract

The present invention discloses a method and a device for super-high-speed pulse signal generator. The device is composed of an I / O peripheral module, a microcontroller module, a bus isolation module, a waveform generation and control module, a pulse source module, a pulse generation module, a level matching module, a pulse edge adjusting module, a pulse amplitude control module, a buffer output module, a control level generation module, a logic conversion module and a clamp level tracking module; outputs and inputs of the I / O peripheral module, the microcontroller module, the bus isolation module, the waveform generation and control module, the pulse source module, the pulse generation module, the level matching module, the pulse edge adjusting module, the pulse amplitude control module and the buffer output module are connected sequentially, the pulse edge adjusting module is located in a base loop of the pulse amplitude control module, independently accomplishes edge adjustment for pulse status conversion and independently accomplishes control of a pulse status keeping level, thereby independently adjusting the heights of the level and amplitude of output pulses by the pulse amplitude control module.

Description

technical field [0001] An ultra-high-speed pulse signal generator relates to the field of electronic measuring instruments, in particular to a pulse signal generator. Background technique [0002] An ultra-high-speed pulse signal generator disclosed by the present invention aims to solve the problem of methods and devices for generating and conditioning ultra-high-speed signals in the design and manufacture of the ultra-high-speed pulse generator. Pulse technology is a major basic technology of modern electronic technology. It started in the 1940s. With the continuous development of modern needs, the pulse signal source has become a commonly used instrument in the field of testing, and it is also the main tool for the development of high-precision equipment. . The advancement of high-performance pulse generation technology is mainly reflected in the frequency, precision, amplitude, fast edge, and parameter programmability of the generated signal. The ultra-high-speed pulse ...

AI Technical Summary

Problems solved by technology

Linear conditioning uses operational amplifiers for linear amplification or attenuation. With the increase of signal frequency, the signal attenuation is serious, which creates a bottleneck for high-speed, ultra-high-speed and large-amplitude signals. The root cause is that the slew rate of operational amplifiers at this stage is limited by manufacturing technology. Affected, it cannot meet the slew rate index requirement of 29845V / us required for high-speed pulse generation

At present, most of the conditioning of high-speed pulse signals has adopted nonlinear conditioning methods, and its circuit structure has got rid of the framework of linear conditioning using operational amplifiers, but there are still defects such as unadjustable pulse edges and unreliable design of current switches. The present invention proposes a A non-linear conditioning method based on pulse signals, which not only utilizes the isolation characteristics of the base circuit and collector circuit of the differential amplifier working in the switching state, adjusts the pulse edge time in the base circuit and ensures that the differential amplifier is always working In the non-saturated mode, it is mapped to the collector circuit, and the level of the input pulse signal is adjusted in the collector circuit, the frequency information of the pulse signal is transmitted, and an ultra-high-speed pulse signal with adjustable pulse edge and amplitude is generated, which improves the existing It has the performance of high-speed pulse signal generator, and the square wave index reaches 220MHz, which can meet the needs of many users

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