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A Pulse Rapid Falling Edge Shaping Device with Controllable Amplitude

A technology of fast pulse shaping device, applied in pulse technology, pulse processing, electrical components, etc., can solve the problems of difficult controllability of amplitude, lack of pulse fast edge shaping device, etc., to achieve the effect of efficient fast edge shaping

Active Publication Date: 2018-12-18
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application of traditional fast-edge pulse signals is greatly restricted by the edge rapidity and waveform quality of pulse signals, as well as the controllability of waveforms. Especially for pulse signals with fast-edge characteristics, the controllability of its amplitude is more difficult.
However, there is still a lack of a specific amplitude-controllable pulse fast-edge shaping device

Method used

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  • A Pulse Rapid Falling Edge Shaping Device with Controllable Amplitude
  • A Pulse Rapid Falling Edge Shaping Device with Controllable Amplitude
  • A Pulse Rapid Falling Edge Shaping Device with Controllable Amplitude

Examples

Experimental program
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Effect test

Embodiment

[0038] Figure 4 It is a circuit diagram of a pulse fast falling edge shaping device with controllable amplitude of the present invention.

[0039] In this embodiment, the input voltage range of the input terminal is within -5V~+5V, and the pulse signal that meets the requirements of the fast falling edge shaping circuit is continuously adjustable, and the output terminal voltage is V O , The range of +V1 is +1V~+5V, and VCC1 and VCC2 are all powered by +12V DC voltage. It can also be set according to specific requirements. Load RL=50Ω.

[0040] Such as Figure 4 As shown, the following is a detailed description of a pulse fast falling edge shaping device with controllable amplitude of the present invention, which specifically includes: a three-stage isolation circuit, a DC bias step circuit, an amplitude control circuit and an anti-reflection resistor;

[0041] Among them, such as Figure 4 As shown, the three-stage isolation circuit includes Schottky diodes D1, D2, and D3; D1, D2...

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Abstract

The invention discloses a pulse fast falling edge shaping device with controllable amplitude, which includes a DC bias step circuit, a three-stage isolation circuit composed of Schottky diodes and an amplitude control circuit; when the pulse signal passes through the pulse fast falling edge shaping device Finally, the step recovery diode enters the charge dissipating state from the forward conduction state. When the charge dissipating is completed, the impedance of the step recovery diode increases rapidly and enters the reverse cut-off state. The step transient of the state is transmitted to the rear through the Schottky diode. stage circuit, so that the level of the load is gradually dropped from 0 to the output low level, and at the same time, the amplitude of the step is controlled by the controllable constant current source Ic, and then the output is shaped by the step characteristic of the step recovery diode. A fast falling edge pulse signal with controllable amplitude.

Description

Technical field [0001] The invention belongs to the technical field of high-speed pulse signal generation, and more specifically, relates to a pulse rapid falling edge shaping device with a controllable amplitude. Background technique [0002] High-speed pulse signals are the key technology that constitutes the test system, and are widely used in various electronics-related industries such as communications, radar, semiconductor manufacturing, integrated circuit testing, microprocessor testing and address detection, electronic system response and geological detection. At the same time, there is a great demand for pulse signal sources with fast edges in ultra-wideband communications, radar, guidance, and oscilloscope calibration. [0003] With the rapid development of microelectronics technology and the widespread application of radio frequency circuits, the performance indicators of pulse signal sources required for device system testing have also been continuously improved. High-s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K5/12
CPCH03K5/12
Inventor 付在明周文建戴志坚黄建国
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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