ILLUMINATION APPARATUS OF PERFORMING FLY-BACK OPERATION

摘要

PURPOSE: A lightening device performing flyback operation forms an operational current throughout the entire period by containing a transformer and a switching section. CONSTITUTION: A lightening device performing flyback operation is composed of the following steps. The path of a current control section(220) mode is controlled. A light emitting unit(230) performs light emitting operations with an operational current. A switching section executes an on-and-off operation according to a switching control signal. A transformer generates counter electromotive force. [Reference numerals] (241) Control section; (243) Pulse width modulator