DN05029/D - 12 Volt, 30 Watt, Off-line Mini-Forward Converter Design Note
Using Part
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Pour les produits finaux
- Electronic Meter
- Industrial Equipments
- Portable Instrumentation
- White Goods
Description
- DN05029/D, Design Note describes a simple, low cost, high performance, off-line forward converter power supply using NCP1251B flyback controller (TSOP6 package), NDD04N60 D-Pak Mosfet, and the NCP431 programmable zener (SOT23 package). This design is an extension of the mini-forward converter design described in Application Note AND8489 in which the NCP1028 monolithic switcher was used as the main controller. The use of an RCD snubber reset type of forward converter allows the extension of the useful duty cycle to over 50% without excessive voltage excursions across the MOSFET. The topology provides lower output ripple and noise, lower EMI generation and slightly higher efficiency than an equivalent 12V/2.5A flyback topology
Caractéristiques principales
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Conversion TypeAC to DC
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Input Voltage90 to 267 (AC) V
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Output Voltage12 V
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Output Current3 A
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Output Power30 W
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Efficiency84 %
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TopologyForward
Pièces en vedette (5)
| Pièce numéro | Fabricant | Type | Description | |||
|---|---|---|---|---|---|---|
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NCP431AVSNT1G | onsemi | Voltage References | V-Ref Adjustable 2.5V to 36V 100mA 3-Pin SOT-23 T/R | Ajouter au panier | |
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NCP431AISNT1G | onsemi | Voltage References | V-Ref Adjustable 2.5V to 36V 100mA 3-Pin SOT-23 T/R | Ajouter au panier | |
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NCP431ACSNT1G | onsemi | Voltage References | V-Ref Adjustable 2.5V to 36V 100mA 3-Pin SOT-23 T/R | Ajouter au panier | |
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NCP1251BSN65T1G | onsemi | AC to DC Switching Converters | AC to DC Switching Converter Flyback 9.4V 65kHz T/R 6-Pin TSOP | Ajouter au panier | |
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NCP1251BSN100T1G | onsemi | AC to DC Switching Converters | AC to DC Switching Converter Flyback 9.4V 100kHz T/R 6-Pin TSOP | Ajouter au panier | |