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

MOSFET digital output circuit

A digital output and circuit technology, applied in the direction of logic circuit, logic circuit connection/interface layout, logic circuit coupling/interface using field effect transistors, etc., can solve the problem of real-time protection of digital output status and inability to judge digital output Problems such as normal operation can be solved to achieve the effect of reducing the number of components and reducing the complexity of the circuit

Active Publication Date: 2018-03-30
CRRC DALIAN R & D CO LTD
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current digital output circuit using MOSFETs as switching elements cannot judge whether the digital output is working normally, so it cannot protect the digital output status in real time

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
  • MOSFET digital output circuit
  • MOSFET digital output circuit
  • MOSFET digital output circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] At present, the digital output circuit using MOSFET as the switching element has no output state feedback detection circuit, so it is impossible to judge whether the MOSFET is normally turned on or off, and then it is impossible to judge whether the digital output is working normally, so it is impossible to protect the digital output state i...

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 provides an MOSFET digital output circuit. The MOSFET digital output circuit comprises an MOSFET and a monitoring circuit, wherein the MOSFET is connected with both a main controller anda load, and is used for controlling the connection / disconnection of the load according to digital output signals output by the main controller; and the monitoring circuit is connected with both the MOSFET and the main controller, and is used for monitoring connection / disconnection signals of the MOSFET and sending digital output status feedback signals to the main controller according to the connection / disconnection signals of the MOSFET. The MOSFET digital output circuit adopting the technical scheme has the advantages that an output status of the MOSFET can be monitored through the monitoring circuit in a real-time manner, so that real-time monitoring and protection on a digital output status can be further achieved.

Description

technical field [0001] The invention relates to digital output circuit technology, in particular to a metal oxide semiconductor field effect transistor (Metal Oxide Semiconductor Field Effect Transistor, MOSFET) digital output circuit. Background technique [0002] The digital output circuit can convert the weak digital signal output by the computer into a digital driving signal that can control the production process, and it is widely used in industrial design. [0003] According to the different loads of the digital output circuit, such as: indicator lights, relays, contactors, electrodes, valves and other loads, different power amplifier devices can be selected as switching elements to form a switch drive circuit. At present, digital output circuits generally use relays or MOSFETs as switching elements. Among them, the drive power of relays is relatively small. In high-power applications, MOSFETs are often used as switching elements. [0004] However, current digital out...

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
IPC IPC(8): H03K19/003H03K19/0185H03K19/0944
CPCH03K19/00361H03K19/018557H03K19/0944
Inventor 郑光磊隋德磊
Owner CRRC DALIAN R & D CO LTD
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