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

Power converter for providing output power limit and depending on load voltage adjustment

A power adapter and output voltage technology, which is applied in the direction of output power conversion device, current collector, regulating electric variable, etc., can solve high power loss, reduce the conversion efficiency of battery charger 108 and DC-DC converter 106, etc. problems, to achieve the effect of improving power efficiency, reducing circuit design complexity and manufacturing costs, and reducing power loss

Active Publication Date: 2008-01-16
DELTA ELECTRONICS INC
View PDF0 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, considerable power loss will be generated on the battery charger 108 and the DC-DC converter 106, and the conversion efficiency of the battery charger 108 and the DC-DC converter 106 will be reduced. )

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
  • Power converter for providing output power limit and depending on load voltage adjustment
  • Power converter for providing output power limit and depending on load voltage adjustment
  • Power converter for providing output power limit and depending on load voltage adjustment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] Preferred embodiments embodying the features and advantages of the present invention will be described in detail in the ensuing description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and that the description and drawings therein are illustrative in nature and not intended to limit the present invention. invention.

[0075]A preferred embodiment of the invention is shown in FIG. 3 . As shown in FIG. 3 , the power adapter (power adapter) 300 is configured to convert an AC input voltage into an output DC voltage, and the output DC voltage is used to provide the power required for the operation of the portable computer 302 . The portable computer 302 has a battery pack (battery pack) 304 and a DC-DC converter (DC-DC converter) 306 inside, wherein the DC-DC converter 306 is set to convert the DC voltage provided by the power adapter 300 into portable The vo...

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 power supply adapter with a voltage limiting circuit. For the voltage limiting circuit, the output voltage of the limiting power supply adapter is a predetermined value when the output current of the power supply adapter is lower than the threshold current. For the power limiting circuit, the output power of the limiting power supply adapter is a predetermined value when the output current of the power supply adapter reach to the threshold current. Wherein, the voltage limiting circuit is set to receive the current control signal from the load and send load current adjusting signal to the switching control circuit of the power supply adapter according to the current control signal, thereby the output voltage of the power converting unit can be adjusted via the switching control circuit. The power supply adapter can flexibly adjust the output voltage and the load current according to the demand of the load, reducing the power loss of the load significantly, improving the power efficiency greatly, and lowering the design complexity of the load and the manufacturing cost.

Description

technical field [0001] The present invention relates to a power adapter, and more particularly, the present invention relates to a power adapter capable of providing output power limitation and load-dependent voltage regulation. Background technique [0002] FIG. 1 is a system block diagram of a conventional power supply system for a portable computer. As shown in FIG. 1 , a power adapter 100 is configured to convert an AC input voltage into an output DC voltage, and the output DC voltage is used to provide the power required for the operation of the portable computer 102 . The portable computer 102 has a battery pack (battery pack) 104 and a DC-DC converter (DC-DC converter) 106 inside, wherein the DC-DC converter 106 is set to convert the DC voltage provided by the power adapter 100 into a portable The voltage required by the internal components of the computer 102, and the battery pack 104 is set to provide power to operate the portable computer 102 when the portable com...

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): H02M7/155G05F1/46H02J7/02
Inventor 蒋进财
Owner DELTA ELECTRONICS INC
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