PROBLEM TO BE SOLVED: To provide an electron generator which is safe to a worker, and which never generates ozone.SOLUTION: An electron generator 10 is arranged so that electrons are generated by connection with electron diffusing means. The electron generator comprises: a transformation circuit 20 which transforms an AC power input to a primary side circuit 21 to a high voltage and makes a secondary side circuit 31 to output. The secondary side circuit has a first terminal 33 connected to the primary side circuit 21, and the secondary side circuit has a second terminal 34 connected to the electron diffusing means 40. By shutting out a current from the second terminal toward the electron diffusing means 40 on condition that the first terminal 33 stays at a plus potential, and flowing back a current from the first terminal 33 to the primary side circuit 21 on condition that the first terminal stays at a minus potential according to an inversion cycle between plus and minus polarities of the AC power, electrons are transmitted from the second terminal 34 to the electron diffusing means 40 periodically according to the inversion cycle only when the first terminal 33 stays at a minus potential.SELECTED DRAWING: Figure 1【課題】作業員に対して安全であり、オゾンを発生しない電子発生装置を提供する。【解決手段】電子放散手段に接続させて電子を発生させる電子発生装置１０であって、１次側回路２１に入力される交流電力を高圧に変圧させて２次側回路３１から出力させる変圧回路２０を有する。２次側回路の第１の端子３３が１次側回路２１に接続されると共に、２次側回路の第２の端子３４が電子放散手段４０に接続される。交流電力の正負の反転周期に応じて、第１の端子３３が正の電位となっている状態では、第２の端子から電子放散手段４０に向かう電流を遮断させ、負の電位となっている状態では、第１の端子３３から１次側回路２１に電流を還流させることにより、第１の端子３３が負の電位となっている状態のみに、反転周期に応じて周期的に、第２の端子３４から電子放散手段４０に電子を伝達させる。【選択図】図１
