DN91, Synchronous Rectification Improves Set Top-Box Power Supply Efficiency
Progetto di riferimento usando la parte ZTL431 di Diodes Incorporated
Documenti associati
Per prodotti finali
- Set-Top Box
Per contattare il Servizio Clienti.
- 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
Funzioni principali
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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
Parti in primo piano (3)
| Numero parte | Produttore | Tipo | Per contattare il Servizio Clienti. | |||
|---|---|---|---|---|---|---|
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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 | ACQUISTA | |
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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 | ACQUISTA | |
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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 | ACQUISTA | |