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A Pulse Rapid Rising Edge Shaping Device with Controllable Amplitude

A technology of pulse fast and shaping device, which is applied in pulse shaping and other directions, can solve the problems of amplitude controllability, lack of pulse fast edge shaping device, etc., and achieve the effect of high-efficiency fast edge shaping

Active Publication Date: 2019-02-01
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 speed and waveform quality of the pulse signal, as well as the controllability of the waveform, 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 Rising Edge Shaping Device with Controllable Amplitude
  • A Pulse Rapid Rising Edge Shaping Device with Controllable Amplitude
  • A Pulse Rapid Rising 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 an amplitude-controllable pulse fast rising edge shaping device of the present invention.

[0039] In this embodiment, the voltage range input at the input terminal is a pulse signal that is continuously adjustable within -5V to +5V and meets the requirements of the fast rising edge shaping circuit, and the voltage at the output terminal is V O , set the range of -V1 to -1V ~ -5V, and both -VEE 1 and -VEE2 are powered by -12V DC voltage, and can also be set according to specific requirements, the load RL = 50Ω.

[0040] Such as Figure 4 As shown, a kind of amplitude-controllable pulse fast rising edge shaping device of the present invention will be described in detail below, 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-level isolation circuit includes Schottky diodes D1,...

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Abstract

The invention discloses a pulse fast rising edge shaping device with controllable amplitude, comprising a DC bias step circuit, a three-level isolation circuit composed of Schottky diodes, and an amplitude control circuit; when a pulse signal passes through the pulse fast rising edge shaping device Then, the step recovery diode enters the charge dissipation state from the forward conduction state. When the charge dissipation 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 through the Schottky diode to the The stage circuit makes the load level rise from the output low level to 0 in a stepwise manner, and at the same time uses the controllable constant current source Ic to control the amplitude of the step, and then obtains the shape of the output with the step characteristic of the step recovery diode. Amplitude controllable fast rising edge pulse signal.

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 rising edge shaping device with controllable amplitude. Background technique [0002] High-speed pulse signal is the key technology of the test system. It is widely used in various electronics-related industries such as communication, radar, semiconductor manufacturing, integrated circuit testing, microprocessor testing and address detection, electronic system response and geological detection. At the same time, in ultra-wideband communication, radar, guidance, and oscilloscope calibration, there is a great demand for pulsed signal sources with fast edges. [0003] With the rapid development of microelectronics technology and the wide application of radio frequency circuits, the performance indicators of pulse signal sources required for system testing have also been continuously improved. High-speed pulse generation techno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K5/08
CPCH03K5/08
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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