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

Circuits and methods for resonant networks

A resonant network and resonance technology, applied in the field of resonant network circuits and methods, can solve the problems of high switching signal frequency, narrow power adjustment range, LCC resonant network is not suitable for LED arrays, etc.

Inactive Publication Date: 2019-04-05
GE LIGHTING SOLUTIONS LLC
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, a fixed LCC resonant network is not suitable for all kinds of LED arrays
In some cases, when the LED array is dimmed, the switching signal frequency is too high, resulting in large switching losses
In some cases, although the frequency of the switching signal is in a large range, the power adjustment range is very narrow

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
  • Circuits and methods for resonant networks
  • Circuits and methods for resonant networks
  • Circuits and methods for resonant networks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Unless otherwise defined, the technical terms or scientific terms used in the specification and claims shall have the ordinary meanings understood by those skilled in the technical field to which the present invention belongs. "First" or "second" and similar words used in the specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "a" or "a" and the like do not denote a limitation of quantity, but indicate that there is at least one, and unless otherwise stated, are used for convenience of expression only and are not limited to any position or spatial orientation.

[0020] Please refer to figure 1 , is a schematic diagram of an embodiment of the power conversion circuit 10 of the present invention. The power varying circuit 10 includes a square wave generator 103 , a resonant network 105 , a transformer 107 , a rectifier 109 and a controller 150 .

[0021] The square wave generato...

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 circuit and a method of a resonant network, and in particular discloses a power conversion circuit. The power conversion circuit includes: a square wave generator, a resonant network, a transformer and a controller. The square wave generator is used to generate square wave power. The resonant network is used to receive the square wave power and output the first resonant power. The resonant network includes capacitors, inductors and controllable capacitive devices. The transformer is connected to the controllable capacitive device for receiving the first resonant power and outputting the second resonant power. The rectified second resonant power is provided to the load. Based on the comparison result of the threshold signal and a signal calculated according to at least one detection signal of the load, the controller is used to generate a switch signal and provide it to the controllable capacitive device. The invention also discloses a method for controlling the power conversion circuit and the resonant network.

Description

technical field [0001] The disclosed embodiments of the present invention relate to circuits and methods for expanding the power adjustment range of a power conversion circuit, and in particular to circuits and methods for using a controllable capacitive device in a resonant network of a power conversion circuit. Background technique [0002] Power conversion circuits are widely used in various fields, such as communications, lighting, automobiles, military industry, etc., to provide appropriate power. In order to meet the requirements of low power consumption and energy saving, some resonant networks are often used in power conversion circuits. For example, an LC resonant network, an LLC resonant network or an LCC resonant network can help make the power changing circuit work more efficiently and have a larger power adjustment range. [0003] As far as light emitting diodes (Light Emitting Diode, LED) are concerned, a dimming function can be realized by utilizing a wide po...

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): H02M3/335H05B37/02
CPCH02M3/3376H02M1/0058H02M7/4818Y02B70/10
Inventor 拉马努金·拉玛班德兰詹保罗·卡利毛赛君
Owner GE LIGHTING SOLUTIONS LLC
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