NCP1602BOOSTGEVB: PFC Boost Converter, Universal Input, 390V 450mA Output Evaluation Board
The NCP1602BOOSTGEVB is designed to effectively evaluate the 6-pin PFC controller NCP1602, which is designed to drive PFC boost stages. It is based on an innovative Valley Synchronized Frequency Fold-back (VSFF) method. In this mode, the circuit classically operates in Critical conduction Mode (CrM) when control voltage exceeds a programmable value Vctrl,FF. When Vcontrol is below this preset level Vctrl,FF, the NCP1602 (versions [B**] and [D**]) linearly decays the frequency down to about 30 kHz until Vcontrol reaches the SKIP mode threshold. VSFF maximizes the efficiency at both nominal and light load. In particular, the stand-by losses are reduced to a minimum. Like in FCCrM controllers, internal circuitry allows near-unity power factor even when the switching frequency is reduced.
评估/开发工具信息
| 产品 | 状况 | Compliance | 简短说明 | 所用产品 |
|---|
| NCP1602BOOSTGEVB | Active | Pb-free | PFC Boost Converter, Universal Input, 390V 450mA Output Evaluation Board | NCP1602ABASNT1G |
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