MAGNETIC FLUX DETECTOR, TRANSFORMER, AND INVERTER POWER SUPPLY APPARATUS

PROBLEM TO BE SOLVED: To provide a magnetic flux detector capable of directly detecting a magnetic flux passing through a transformer core from outside regardless of a specification such as magnitude of the magnetic flux passing through the transformer and the turn ratio of a coil.SOLUTION: A magnetic flux detector 1 detects a magnetic flux passing through a transformer core 21 having a gap 21c from outside of the transformer core 21, and includes an annular detector core 11 having a first gap 11c into which a magnetic flux leaked from the gap of the transformer core 21 flows and a detector 12 for detecting the magnetic flux passing through the detector core 11.SELECTED DRAWING: Figure 4 【課題】変圧器を通る磁束の大きさ、コイルの巻き数比等の仕様に拘わらず、変圧器コアを通る磁束を外部から直接的に検出することができる磁束検出器を提供する。【解決手段】間隙２１ｃを有する変圧器コア２１を通る磁束を、変圧器コア２１の外部から検出する磁束検出器１であって、変圧器コア２１の間隙から漏洩した磁束が流入する第１間隙１１ｃを有する環状の検出器コア１１と、検出器コア１１を通る磁束を検出する検出部１２とを備える。【選択図】図４