FREQUENCY TUNED RESISTOR-INDUCTOR-CAPACITOR SNUBBER FOR SWITCHING POWER SUPPLY
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Oct 5, 2023
filing date -
Oct 5, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A power supply comprises: a transformer having a secondary winding to produce an alternating current at terminals of the secondary winding responsive to a switching current in a primary winding of the transformer; an output rectifier, coupled to the terminals and to an output node and a return node of the output rectifier to be connected to a load, including at least a first diode to rectify the alternating current and to supply a rectified current to the output node; and a first resistor (R)-inductor (L)-capacitor (C) (RLC) snubber (first RLC snubber) including a first resistor, a first inductor, and a first capacitor connected in series with each other, the first RLC snubber coupled to the output rectifier and the secondary winding to dampen voltage ringing in the output rectifier caused by the switching current.
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