{
  "$type": "site.standard.document",
  "description": "For example, backflow preventing means is provided, which reduces a recovery electric current occurring in the event of backflow of an electric current so as to ensure high efficiency, high reliability, etc. The backflow preventing means includes a backflow preventing element, such as a rectifying…",
  "path": "/patents/981131",
  "publishedAt": "2013-12-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F25B49/025",
    "MITSUBISHI ELECTRIC CORP [JP]"
  ],
  "textContent": "For example, backflow preventing means is provided, which reduces a recovery electric current occurring in the event of backflow of an electric current so as to ensure high efficiency, high reliability, etc. The backflow preventing means includes a backflow preventing element, such as a rectifying element 3a, which is connected between an alternating-current power supply 1 and a load 6 and prevents the electric current from flowing backward from the load 6 toward the alternating-current power supply 1; and commutating means 7 for performing a commutation operation for causing the electric current to flow toward a different path that is connected in parallel with the backflow preventing element, whereby a conduction loss and a loss caused by the electric current can be reduced.",
  "title": "BACKFLOW PREVENTING MEANS, POWER CONVERSION APPARATUS, AND FREEZING AIR CONDITIONING APPARATUS"
}