Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A differential voltage type current transmitter and a biquad filter circuit including the same

A technology of current transmitter and differential voltage, which is applied in the direction of electrical components, frequency selective two-terminal pair network, and network using active components, etc. It can solve the problems of not having electrical tuning characteristics, achieve gain, and have a wide range of applications , the effect of simple structure

Active Publication Date: 2018-07-17
湖南纽帕科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although DVCC has excellent differential-mode input characteristics and high common-mode signal rejection capability, it has a big disadvantage, that is, it does not have electrical tuning characteristics.

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
  • A differential voltage type current transmitter and a biquad filter circuit including the same
  • A differential voltage type current transmitter and a biquad filter circuit including the same
  • A differential voltage type current transmitter and a biquad filter circuit including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Such as image 3 , Figure 4 As shown, a differential voltage current transmitter includes a switch control circuit 1, the first to sixteenth MOS transistors M16, the gate of the first MOS transistor M1 serves as the Y2 terminal of the differential voltage current transmitter, and the first The source of the first MOS transistor M1 and the second MOS transistor M2 are connected to the drain of the fifth MOS transistor M5, the drain of the first MOS transistor M1, the drain of the third MOS transistor M3, and the drain of the seventh MOS transistor M7 , The gate of the seventh MOS transistor M7 is connected to the gate of the eighth MOS transistor M8, the gates of the fifth MOS transistor M5 and the sixth MOS transistor M6 are connected to the external bias voltage Vb1, and the gate of the second MOS transistor M2 is grounded , the drains of the...

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 discloses a differential voltage type current conveyor, comprising a switch control circuit, and first to sixteenth MOS transistors. The switch control circuit is a switch array controlled by a digital signal. The switch control circuit comprises 2M PMOS transistors and 2M NMOS transistors. The differential voltage type current conveyor provided by the invention comprises the switch control circuit. The switch control circuit comprises the PMOS transistors and the NMOS transistors of the same quantity. The PMOS transistors and the NMOS transistors form the switch array controlled by the digital signal. Therefore, the current of the Z output end of the differential voltage type current conveyor is controlled. The differential voltage type current conveyor has digital controllable current gain, a differential voltage input characteristic of a current conveyor and an electric tuning characteristic, and has the advantages of simple structure and wide application range. The invention also discloses a biquad filter circuit comprising the differential voltage type current conveyor.

Description

technical field [0001] The invention relates to a current transmitter, in particular to a differential voltage current transmitter and a biquad filter circuit comprising the same. Background technique [0002] As an important branch of the continuous time filter, the current conveyor (current converter: CCll) and the filter circuit composed of its derived active devices have been favored by scholars since they were proposed in the 1970s. As the most basic current mode circuit building block, CCll is widely used in filtering, oscillation, amplification, etc. because of its wide signal bandwidth, large dynamic range, simple current structure and low power consumption. However, CCll There is only one high-impedance voltage input terminal (Y). This defect is particularly obvious when dealing with differential signals, which are used in modern analog signal processing, automatic control processes, and other communication or radio frequency systems. widely. Therefore, differenti...

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): H03H11/12
CPCH03H11/1217
Inventor 周细凤曾荣周陈子逸
Owner 湖南纽帕科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com