A kind of inverter circuit and air-conditioning system with reinforcement IGBT short-circuit protection function

A kind of inverter circuit and air-conditioning system with reinforcement IGBT short-circuit protection function

  • CN 105,006,988 B
  • Filed: 07/21/2015
  • Issued: 08/27/2019
  • Est. Priority Date: 07/21/2015
  • Status: Active Grant
First Claim
Patent Images

1. a kind of with the inverter circuit for reinforcing IGBT short-circuit protection function, including DC power supply and inverter circuit (1), featureIt is, has been arranged in series stand-by protection IGBT module (2), the stand-by protection on the DC bus of the inverter circuit (1)The grid of IGBT module (2) is connect with stand-by protection IGBT drive control module, when short circuit occurs for IGBT, the stand-by protectionIGBT drive control module controls stand-by protection IGBT module (2) and disconnects;

  • The short circuit current protection value of the stand-by protection IGBT module (2) is the SCSOA of IGBT module in the inverter circuit (1)Edge maximum value;

    The short-circuit protection value of the stand-by protection IGBT module (2) is equal to IGBT drive control module in the inverter circuit (1)Short-circuit protection value.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×