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

SSPC driving buffer circuit and method

A technology for driving buffers and circuits, applied in electrical components, pulse technology, electronic switches, etc., can solve problems such as damage to MOS tube switches, and achieve the effects of reducing driving resistance, reducing oscillation amplitude, and improving dynamic response performance.

Pending Publication Date: 2022-05-06
SHANGHAI AVIATION ELECTRIC
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the MOS tube switch in the prior art is damaged due to a short circuit, and to provide a novel SSPC drive buffer circuit and method

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
  • SSPC driving buffer circuit and method
  • SSPC driving buffer circuit and method
  • SSPC driving buffer circuit and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0023] See figure 1 , the impedance switching circuit shown in the figure uses a resistor R2 (for example, a resistance value of 10k) as a driving resistor before the Miller platform. And after passing the Miller platform, close the control switch, turn on the resistor R1, and connect the resistor R1 (for example, a resistance value of 1k) and the resistor R2 in parallel. In this way, the voltage and current oscillation in the turn-on and turn-off process ca...

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 an SSPC driving buffer circuit and method, and the circuit comprises an MOS tube switch which is used for selectively connecting or disconnecting an SSPC main power loop; the MOS tube switch driving end is used for providing driving voltage for the MOS tube; the impedance switching loop is arranged between the MOS tube switch and the MOS tube switch driving end, the impedance switching loop is composed of a resistor R1, a resistor R2 and a change-over switch, the resistor R1 is connected with the change-over switch in series and then connected with the resistor R2 in parallel, and the resistance value of the resistor R1 is smaller than that of the resistor R2. The beneficial effects of the invention lie in that the driving resistance is increased in front of the Miller platform, so as to reduce the oscillation amplitude of the Vds voltage and channel current Id of the MOS tube switch; and after the Miller platform, the driving resistance is reduced, and the on-off time is shortened, so that the dynamic response performance is improved.

Description

technical field [0001] The invention relates to a solid-state power controller SSPC, in particular, an SSPC driving buffer circuit and method. Background technique [0002] The Solid State Power Controller (SSPC) receives control commands from the external bus, and sends out drive signals for power MOS tubes after calculation to distribute power to the corresponding load channels. Under abnormal conditions (such as overload or short circuit), SSPC will pull down the driving signal of the power MOS tube, disconnect the load circuit, and protect the aircraft power distribution network. At the same time, SSPC will also collect the status of the load channel, and send information such as voltage, current, channel on-off status, etc. to the external bus through the microprocessor. [0003] SSPC has been widely used in modern aircraft, such as A380, B787 and other typical civil aircraft, due to its characteristics of no contact, no arc, and high reliability. [0004] Although SS...

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): H03K17/04
CPCH03K17/04
Inventor 王彩俊王青青万波
Owner SHANGHAI AVIATION ELECTRIC
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