App note: Rectifiers for Power Factor Correction

Another Vishay’s app note about power factor correction this time about the component used and their effects. Link here (PDF) PFC devices are generally selected base on the speed of their reverse recovery time (trr). Currently for CCM (Continuous-Conduction-Mode) and CRM (Critical Conduction-Mode) PFC devices in market, rectifiers up to 600 V with trr smaller […]

App note: Power factor correction with ultrafast diodes

Vishay’s app note in keeping the power supplies’ power factor in check with their ultrafast diodes. Link here (PDF) More and more switched mode power supplies (SMPS) are being designed with an active power factor correction (PFC) input stage. This is mainly due to the introduction of regulations aimed at restricting the harmonic content of […]