DN05057/D,NCP1615C 的設(shè)計(jì)說明是一款高壓
PFC 控制器,旨在基于創(chuàng)新的
電流控制頻率折返 (CCFF) 方法驅(qū)動(dòng) PFC 升壓級(jí)。在此模式下,當(dāng)
電感器電流超過可編程值時(shí),
電路通常以臨界導(dǎo)通模式 (CrM) 運(yùn)行。當(dāng)電流低于此預(yù)設(shè)水平時(shí),NCP1615C 會(huì)將頻率線性衰減至輸入電流為零時(shí)的最小值約 26 kHz。 CCFF 最大限度地提高標(biāo)稱負(fù)載和輕負(fù)載下的效率
說明
-
DN05057/D, Design Note for the NCP1615C is a high voltage PFC controller designed to drive PFC boost stages based on an innovative Current Controlled Frequency Foldback (CCFF) method. In this mode, the circuit classically operates in critical conduction mode (CrM) when the inductor current exceeds a programmable value. When the current is below this preset level, the NCP1615C linearly decays the frequency down to a minimum of about 26 kHz when the input current is zero. CCFF maximizes the efficiency at both nominal and light load
主要特色
-
Conversion Type
AC to DC
-
Input Voltage
85 to 265 (AC) V
-
Output Voltage
400 V
-
Output Current
0.3 A
-
Output Power
120 W
-
Topology
Boost- PFC