High frequency high voltage pulse generator

A pulse generator, high-frequency and high-voltage technology, applied in the direction of electric pulse generator circuit, pulse generation, pulse technology, etc., can solve the problem of increased loss, achieve the effect of increased charge and discharge loss, ensure quality, and increase charge and discharge loss

Inactive Publication Date: 2012-02-15
SOUTHEAST UNIV
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AI Technical Summary

Problems solved by technology

[0005] High-frequency high-voltage pulse generators used in communication technology are usually called Class D pulse amplifiers. This type of pulse amplifier has high power output and 100% work efficiency when used as a transmission source. Its application range is generally HF (high frequency ) and VHF (very high frequency), however as the transmission frequency further increases, its loss will also increase

Method used

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Embodiment Construction

[0018] The implementation of the generator is mainly divided into a pulse signal amplification circuit, a MOSFET drive circuit and a high-voltage pulse output circuit, the specific contents are as follows:

[0019] The pulse signal amplifying circuit amplifies one small signal pulse into two pulses with the same timing, opposite phase and amplitude of 5V; in the pulse signal amplifying circuit, the input port and the input matching resistance R 1 , Input current limiting resistor R 2 One end of the parallel connection, the input matching resistance R 1 The other end of the ground, the input current limiting resistor R 2 The other end of the forward protection diode D 1 The positive terminal and negative protection diode D 2 The negative terminal, non-inverting amplifier U 1 The 3-pin, inverting amplifier U 2 The input resistance R 5 One end is connected in parallel, the forward protection diode D 1 The negative terminal is connected to +5V, and the negative protection d...

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Abstract

A high frequency high voltage pulse generator is a pulse driving and emission source which is applied to fields of display measurement, display drive, communication technology and the like. The generator comprise a pulse signal amplification circuit, a MOSFET (Metal Oxide Semiconductor Field Effect Transistor) driving circuit, and a high voltage pulse output circuit which are in serial connection in order. An input terminal of the pulse signal amplification circuit is an input terminal of the generator, and an output terminal of the high voltage pulse output circuit is an output terminal of the generator. An upper end suspension power supply of the MOSFET driving circuit of the generator is formed by a high voltage pulse attenuator, so a positive/negative high frequency pulse which has a duty ratio of 0.005 % in a frame period and meets a technical index is generated in the display measurement, a maintenance pulse which has a duty ratio of 50% and satisfies more than 8 subfields is provided in the display drive, and an emission source pulse which 100% operating efficiency, large power and low loss is outputted in the communication technology.

Description

technical field [0001] The invention is a device for generating high-frequency and high-voltage pulses, which is suitable for display measurement, display drive, communication technology and other fields. Background technique [0002] High-frequency high-voltage pulse generators can be used in many fields such as display measurement, display drive and communication technology. In different fields, the application purposes and technical indicators of high-frequency high-voltage pulses are different. [0003] In display measurement, it is first required that the high-frequency high-voltage pulse has a very small duty cycle in one frame period, that is, the pulse width in one frame period is ≤100ns. In addition, in order to ensure the measurement accuracy, the technical index of high-frequency high-voltage pulse There are strict regulations, where the pulse amplitude is ≥200V, the pulse rising / falling edge is ≤10ns, and the pulse top fluctuation is ≤2V. [0004] Although the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K3/017H03K3/023
Inventor 杨晓伟李晓华雷威
Owner SOUTHEAST UNIV
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