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Fast pulse 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: 2017-02-01
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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  • Fast pulse rising edge shaping device with controllable amplitude
  • Fast pulse rising edge shaping device with controllable amplitude
  • Fast pulse rising edge shaping device with controllable amplitude

Examples

Experimental program
Comparison scheme
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 fast pulse rising edge shaping device with controllable amplitude. The fast pulse rising edge shaping device comprises a three-level isolation circuit composed of a DC offset phase step circuit and a Schottky diode control circuit, and an amplitude control circuit; when a pulse signal passes by the fast pulse rising edge shaping device, a phase step recovery diode enters a charge dispersion state from a positive conduction state, the impedance of the phase step recovery diode increases quickly to enter a reverse disconnection state after charge dispersion is completed, the phase step type transition of the state is transmitted by a Schottky diode to a secondary circuit, so that a load obtains levels and rises from low level outlet to 0 in a phase step manner, meanwhile the phase step amplitude is controlled by a controllable constant current source Ic, and then a fast rising edge pulse signal with controllable amplitude is output by the phase step reshaping of the phase step recovery diode.

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 Applications(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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