PFC 的典型應(yīng)用,使用 TDA 16846-2
控制器實現(xiàn)支持
低功耗待機、PFC 的開關(guān)模式
電源。 TDA 16846-2 經(jīng)過優(yōu)化,可控制帶或不帶
功率因數(shù)校正(電流泵)的自由運行或固定頻率
反激式轉(zhuǎn)換器。為了在輕負(fù)載下提供低功耗,該器件會隨著負(fù)載小步降低開關(guān)頻率,以達(dá)到可調(diào)節(jié)的最小值(例如,待機模式下為 20 kHz)
說明
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Typical Application with PFC Using TDA 16846-2 Controller for Switch Mode Power Supplies Supporting low-Power Standby, PFC. The TDA 16846-2 is optimized to control free running or fixed frequency flyback converters with or without Power Factor Correction (Current Pump). To provide low power consumption at light loads, this device reduces the switching frequency in small steps with load, towards an adjustable minimum (e. g. 20 kHz in standby mode)