Standby fluorescent lighting inverter - has output transformer with compensation secondary connected in parallel with output transformer drive secondary

摘要

The circuit (10) is used esp. for heated-cathode type fluorescent lighting tubes for emergency lighting fired or triggered by glow-gap starter units. The inverter output transformer is designed to ensure reliable operation of the inverter despite short-circuiting occurring in the auxiliary current loop of the load. A compensation secondary winding is provided across the drive-secondary of the output transformer and specif. has the same number of turns as the drive-secondary winding the turns being connected in antiphase to the switching winding.