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

Novel MOS tube current detection protection circuit with self-locking function

A MOS tube, current detection technology, applied in the field of passenger cars, can solve the problems of high cost, large delay, large error of the resettable fuse, etc., to achieve the effect of high safety and stability, and simple circuit

Pending Publication Date: 2022-07-05
上海创程车联网络科技有限公司 +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the current detection and protection circuits on passenger cars are recoverable fuses or use single-chip microcomputer sampling, and the error of recoverable fuses is relatively large and there is a relatively large delay; while the use of single-chip microcomputer sampling is expensive, and there are sampling intervals at the same time, so it cannot be protected 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
  • Novel MOS tube current detection protection circuit with self-locking function
  • Novel MOS tube current detection protection circuit with self-locking function
  • Novel MOS tube current detection protection circuit with self-locking function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described below through specific embodiments shown in the accompanying drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present invention.

[0035] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and / or" as used herein refers to and includes any a...

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 novel MOS (Metal Oxide Semiconductor) tube current detection protection circuit with a self-locking function, which is completely constructed by electronic devices, does not need to be controlled by a single chip microcomputer and a program, and judges instant overcurrent or continuous overcurrent during overcurrent by carrying out multi-stage continuous comparison on current sampling voltage flowing through an MOS tube in a comparison circuit of the circuit. And the switch of the MOS tube is controlled by using the subsequent self-locking circuit and the MOS tube driving circuit according to the comparison result, so that the condition of repeated switch-on and switch-off of the MOS tube is avoided, and the safety of the device is ensured.

Description

technical field [0001] The invention relates to the technical field of passenger cars, in particular to a novel MOS tube current detection and protection circuit with a self-locking function. Background technique [0002] At present, the use of MOS tubes instead of relays in the field of passenger cars has gradually become a trend. At present, the current detection and protection circuits on passenger cars are mostly recoverable fuses or sampling using single-chip microcomputers. The error of recoverable fuses is relatively large and there is a large delay. However, the sampling cost of using single-chip microcomputers is high, and there is an intermittent period of sampling, which cannot be protected in real time. . SUMMARY OF THE INVENTION [0003] In view of this, the present invention provides a novel MOS transistor current detection and protection circuit with a self-locking function to solve the above-mentioned problems in the background art. [0004] A new type of...

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 Applications(China)
IPC IPC(8): H03K17/0812H03K17/687
CPCH03K17/08122H03K17/687
Inventor 纪柯曾佳周恒祥谭福伦刘明春王俊红聂石启黄苏杭李青川司炎鑫张智清
Owner 上海创程车联网络科技有限公司