Unlock instant, AI-driven research and patent intelligence for your innovation.

Spike pulse voltage amplifier

A voltage amplifier and current amplifier technology, applied in pulse shaping and other directions, can solve problems such as large volume, incapable of mass production, and overall performance constraints

Inactive Publication Date: 2014-06-18
SUZHOU R&D CENT OF NO 214 RES INST OF CHINA NORTH IND GRP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the circuit requires the input pulse width to be greater than 10ns, and the power consumption current is above 5mA. The volume is relatively large, and it cannot be mass-produced. The overall performance is severely restricted by general-purpose core devices.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Spike pulse voltage amplifier
  • Spike pulse voltage amplifier
  • Spike pulse voltage amplifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 2 As shown, in this example:

[0045] R3, M1 and C1 form a bias circuit 3: Among them: one end of R3 is connected to an external power supply, the other end is connected to one end of C1, and the other end of C1 is grounded; the drain of M1 is connected between R3 and C1, and its source is grounded. Its gate is the bias voltage output terminal;

[0046]M2, M3, M4 and M5 constitute the current amplifier 1: where the source of M2 is connected to the input signal, which is the input terminal of the current amplifier 1, its drain is connected to the drain of M3, and its gate is connected to the bias circuit 3 The output terminal of M1, the gate of M1; the gate of M3 is connected to the gate of M4, and its source is connected to an external power supply; the drain of M4 is connected to the drain of M5, and its source is connected to an external power supply; the gate of M5 is connected to To the output terminal of the bias circuit 3, the grid of M1, its sou...

Embodiment 2

[0055] Such as image 3 As shown, this embodiment is basically the same as Embodiment 1, the difference is:

[0056] Q0 and M6 form a voltage buffer 2: where: the base of Q0 is connected to the output of current amplifier 1, its emitter is connected to the drain of M6, and its collector is connected to an external power supply; the gate of M6 is connected to the bias circuit 3's output terminal, its source is grounded; the output signal is drawn between the emitter of Q0 and the drain of M6.

[0057] In this embodiment, the substrate NPN transistor Q0 is used instead of figure 2 In the MOS transistor M0, set the base resistance of transistor Q0 as r0, and the -3dB bandwidth of point A2 is w2-3dB:

[0058] w 2 - 3 dB = 1 2 π ( r ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a spike pulse voltage amplifier which comprises a current amplifier, a voltage buffer, and a feedback loop, wherein the current amplifier is used for amplifying the impulse amplitude of an input spike pulse signal; the voltage buffer is used for adjusting or improving the current drive capability in an entire amplifier loop and outputting a signal; the input end of the voltage buffer is connected to the output end of the current amplifier; the feedback loop is used for stabilizing and controlling the gain of the entire amplifier loop; and the input end of the feedback loop is connected to the output end of the current amplifier and the output end of the feedback loop is connected to the input end of the current amplifier. The invention utilizes a spike pulse voltage amplifier to replace a loop-through thick film process circuit, so as to realize high frequency and large dynamic range, can amplify weak spike pulse signals, and has a favorable linear input range.

Description

technical field [0001] The invention relates to the field of integrated circuits, in particular to a narrow pulse voltage amplifier. Background technique [0002] The four-quadrant photodetector is composed of four photodetectors, each detector has a quadrant, and the target light signal is imaged on the four-quadrant photodetector after passing through the optical system. Four-quadrant detectors are more and more widely used due to their advantages of fast response frequency, wide response wavelength, high sensitivity and large operating temperature range. Four-quadrant detectors are commonly used as photoelectric sensors in photoelectric tracking instruments such as laser guidance heads and laser theodolites. Detect target position. [0003] In the four-quadrant laser detection system, when the optical signal power is small, the electrical signal output from the photodetector is also relatively small, sometimes even very weak, only a narrow pulse of ns magnitude, and it i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H03K5/04
Inventor 白涛
Owner SUZHOU R&D CENT OF NO 214 RES INST OF CHINA NORTH IND GRP