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

A power protection device

A technology for power protection and charging power, applied in circuit devices, battery circuit devices, DC network circuit devices, etc., can solve problems such as inability to meet terminal charging requirements, inability to perform charging, and voltage reduction in charging circuits.

Active Publication Date: 2019-07-05
ZTE CORP
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

but, image 3 In the method shown, when the charging current is large, the forward conduction voltage of the diode will increase, causing the voltage of the charging circuit to decrease, which cannot meet the charging requirements of the terminal and cannot be charged.
[0006] From the above description, it is not difficult to find that the existing methods cannot guarantee the safety of the charging process when the mobile device is under two or more charging paths.

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 power protection device
  • A power protection device
  • A power protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Figure 4 It is a schematic diagram of the power protection device of the present invention, such as Figure 4 shown, including at least:

[0026] Two or more isolation circuits are connected between each charging power source and the charging circuit to prevent reverse connection of each charging power source;

[0027] The control circuit is connected between the charging source and the isolation circuit, and is used for shutting off the charging path so that only one charging path is charged when two or more charging paths are simultaneously charged.

[0028] Among them, the isolation circuit can be an analog circuit composed of a P-channel field effect transistor (PMOS) and an N-channel field effect transistor (NMOS), or an independently packaged electronic component formed by combining the two. When there is only one charging path , through the NMOS, the PMOS is completely turned on in one direction, so that the isolation circuit has the isolation effect of one-wa...

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

A power source protection device comprising at least the following: two or more isolation circuits, configured so as to connect between each charging power source and charging path, preventing a reversal connection of each charging power source; additionally, a control circuit, configured so as to connect between a charging source and an isolation circuit and, when two or more charging paths simultaneously access charging, to shut off a charging path so that only one charging path engages in charging. The present invention embodiment isolates and protects each charging path by means of connecting an isolation circuit between a charging source and a charging path, and, when an extra charging path exists, uses a control circuit for determination and selection, leaving only one charging path and thus providing protection to the charging circuit.

Description

technical field [0001] The invention relates to the field of electronic circuit design, in particular to a power protection device. Background technique [0002] With the widespread use of mobile devices, people put forward higher requirements for their reliability and security. At present, a large number of mobile devices are charged by a factory-configured charger. figure 1 It is a schematic diagram of the existing charger for charging, where the resistor R1 is the line impedance, such as figure 1 As shown, when the terminal needs to be charged, the user plugs the adapter into the charger, and then places the terminal on the charger to connect to the charging circuit and charge. [0003] With the increase of terminal charging paths, for example, the continuous popularization of wireless charging methods, the terminal charging paths will also continue to increase. It is more and more common that two charging paths or multiple charging paths exist at the same time. [00...

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): H02J7/00
CPCH02J7/0034H02J1/108H02J2207/40
Inventor 宁金星曲廷梁超
Owner ZTE CORP
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