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A double-sided structure silicon carbide power module for Vienna rectification and its preparation method

A double-sided structure, power module technology, applied in the direction of converting AC power input to DC power output, irreversible AC power input converting to DC power output, output power conversion device, etc. Safe operation threats, voltage overshoot and other issues, to achieve the effect of improving heat dissipation performance and reliability, reducing parasitic inductance, and suppressing voltage overshoot and oscillation problems

Active Publication Date: 2021-12-28
XI AN JIAOTONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, compared with traditional silicon devices, silicon carbide devices are more sensitive to the parasitic inductance of the loop. Under the same parasitic parameters, the voltage overshoot and oscillation caused by the use of silicon carbide devices are more serious, thus affecting the safe operation of the device. Certain threats and severe shocks may cause electromagnetic interference, affecting the safe and stable operation of the entire system

Method used

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  • A double-sided structure silicon carbide power module for Vienna rectification and its preparation method
  • A double-sided structure silicon carbide power module for Vienna rectification and its preparation method
  • A double-sided structure silicon carbide power module for Vienna rectification and its preparation method

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Embodiment Construction

[0037] In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

[0038] The invention provides a double-sided structure silicon carbide power module for Vienna rectifier. First, based on the analysis of the basic principle of the Vienna rectifier, the basic distribution of the commutation circuit is obtained, and the basic topology of the Vienna rectifier is determined accor...

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Abstract

The invention discloses a silicon carbide power module with a double-sided structure for Vienna rectification and a preparation method thereof. It adopts a double-sided busbar structure and includes two upper and lower DBC substrates. Each DBC substrate contains two layers of copper, one of which is A Vienna rectification topology circuit is arranged on the copper layer, and the input AC terminal of the Vienna rectification topology circuit includes AC 1 and AC 2 , the midpoint of the DC side includes O 1 and O 2 ; The bonding wire is set on the lower DBC substrate to realize the Kelvin connection of the driving part; the commutation circuit path is minimized by decoupling the two commutation paths in the double-sided structure silicon carbide power module. The invention has the advantages of small loop parasitic inductance, high heat dissipation efficiency, small volume, fast switching speed and the like.

Description

technical field [0001] The invention belongs to the technical field of power modules, and in particular relates to a double-sided structure silicon carbide power module for Vienna rectification and a preparation method thereof. Background technique [0002] With the development of economy, environmental problems and energy crisis have become increasingly prominent, and the development and use of clean energy is urgently needed. Therefore, new energy vehicles represented by electric vehicles have broad application and development prospects. Charging piles and on-board chargers for electric vehicles are the key basic equipment for large-scale promotion and application of electric vehicles in the future. The AC / DC plus DC / DC two-level topology is usually used in the design of charging piles and on-board chargers. Vienna rectification topology is the most widely used topology in the AC / DC pre-stage. Vienna rectification topology is a three-level rectification topology, but com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K1/02H05K1/18H05K3/34H02M7/06H02M7/217
CPCH05K1/0201H05K1/0296H05K1/184H05K3/3447H02M7/06H02M7/217H05K2201/09209H05K2201/09218H05K2201/0929Y02B70/10
Inventor 王来利赵成李锡光杨奉涛齐志远王见鹏陈阳
Owner XI AN JIAOTONG UNIV
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