DN91, Synchronous Rectification Improves Set Top-Box Power Supply Efficiency
Diseño de referencia usando la pieza ZTL431 de Diodes Incorporated
Documentos asociados
Para productos finales
- Set-Top Box
Descripción
- Typical set top box power supply. It is a cost effective design with minimum component count. The circuit is designed to operate in Discontinuous Conduction Mode because there are lower switching losses. Furthermore, the flyback transformer size can be reduced owing to the lower average energy storage whilst its smaller magnetizing inductance also yields a better transient line/load response
Características clave
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Conversion TypeAC to DC
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Input Voltage230 (AC) V
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Output Voltage-20|3.3|5|12 V
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Output Current0.06@-20V|0.5@12V|2@3.3V|2.5@5V A
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Output Power27 W
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Efficiency78.2 %
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TopologyFlyback
Piezas destacadas (3)
Número de pieza | Fabricante | Tipo | Descripción | |||
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ZTL431BQE5TA | Diodes Incorporated | Voltage References | V-Ref Adjustable 2.5V to 20V 100mA Automotive AEC-Q100 5-Pin SOT-25 T/R | AÑADIR AL CARRITO | ||
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ZTL431BQFTA | Diodes Incorporated | Voltage References | V-Ref Adjustable 2.5V to 20V 100mA Automotive AEC-Q100 3-Pin SOT-23 T/R | AÑADIR AL CARRITO | |
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ZTL431AQFTA | Diodes Incorporated | Voltage References | V-Ref Adjustable 2.5V to 20V 100mA Automotive AEC-Q100 3-Pin SOT-23 T/R | AÑADIR AL CARRITO |