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

Soft switching interleaved power converter

A technology of power converter and soft switching, which is applied in the direction of converting DC power input to DC power output, output power conversion equipment, and conversion equipment without intermediate conversion to AC, which can solve high switching loss, high power, and dissipation And other issues

Inactive Publication Date: 2009-08-26
ADVANCED ENERGY IND INC
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The large reverse recovery current of the freewheeling diodes in switches SW1 and SW2 causes high power dissipation due to the high voltage across the switches during the opening switching transition interval
Diode reverse recovery current also causes considerable power dissipation in the diode
These hard switched power converters will have high switching losses when operating at high frequencies in high voltage and high power applications

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
  • Soft switching interleaved power converter
  • Soft switching interleaved power converter
  • Soft switching interleaved power converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The power converter units of the present invention are similar in construction to prior art circuits, but they achieve heretofore unknown performance improvements by utilizing inductor components of beneficial construction and inductance values ​​and by utilizing optimal switching patterns.

[0042] Figure 12 A soft-switched power converter cell SSPCC according to the invention is illustrated. At least two switching assemblies SA1 and SA2 are connected to active and passive terminals AT and PT. The possibility of connecting a total of N further switching modules is indicated by the virtual connection to the Nth switching module SAN. At the inductor assembly inputs IAIT1...IAITN, the common terminal CST1...CSTN of each switch assembly is connected to the inductor assembly IA. The common terminal IACT of the inductor assembly is connected to the inductance terminal IT of the SSPCC power converter unit.

[0043] Figure 13-16 Various approaches to realize the inductor...

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 present invention provides a soft-switching interleaved power converter suitable for high power and high voltage applications, such as plasma processing. They greatly reduce switching losses and diode reverse-recovery losses, which allow operation at high switching frequencies. The peak reverse-recovery current of diodes is substantially lower than their peak forward operating current. The power converter includes a power converter unit including a plurality of switching components operating in an interleaved switching mode, each connected to an input of an inductive component that also has a common terminal. The inductance between each pair of input terminals is smaller than the inductance between each input terminal and the common terminal of the inductor component.

Description

field of invention [0001] The present invention relates generally to soft switching switching power converters, and more particularly to soft switching buck, buck-boost and boost switching power converters suitable for high power and high voltage applications such as plasma processing. Background technique [0002] It is generally desirable to switch the power supply at the highest frequency available for the particular circuit. Operating at a higher frequency allows reducing the inductor and capacitor values ​​in the power supply, which reduces physical size and cost, and also allows for improved transient response of the power supply. Reducing the energy available to deliver to the plasma arc is also a desirable goal. High frequency operation allows the use of smaller output filter capacitors, which store less energy than larger capacitors, which reduces the energy that can be delivered to the plasma arc. [0003] The operating frequency of prior art power supplies utili...

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): G05F1/10G05F1/652G05F1/656G05F1/613H02M3/07H02M3/158
CPCH02M3/07H02M3/1584H02M2003/076H02M2003/075H02M2003/1586H02M3/075H02M3/076H02M3/1586G05F1/652
Inventor 布赖斯·L·黑斯特曼米兰·伊利克安德雷·B·马利宁卡利安·N·C·西德巴图拉
Owner ADVANCED ENERGY IND INC