Circuit for correcting power factor for gas discharge lamp balast power supply has at least one further diode between storage capacitor and rectifier that discharging of storage capacitor by rectifier is prevented

摘要

A storage capacitor (CS) is switched in parallel by two switches (T1,T2). At least one further diode (DP1) is provided between the storage capacitor (CS) and the rectifier (14) that a discharging of the storage capacitor (CS) by the rectifier (14) is prevented.