How does synchronous rectification contribute to power loss?
Chapter Two Synchronous Rectification The conduction loss of diode rectifier contributes significantly to the overall power loss in a power supply, especially in low output-voltage applications. The rectifier conduction loss is proportional to the product of its forward-voltage drop, V F, and the forward conduction current, I F.
How is synchronous rectification used in offline conversion?
Synchronous rectification is normally implemented in either continuous or discontinuous conduction mode (CCM/DCM) or quasi-resonant (QR) flyback mode, all of which are popular in offline conversion. CCM generally occurs at heavier loads and, in this mode, the current through the inductor never falls to zero.
How are synchronous rectification ICS support their customers?
We support our customers to meet design and performance goals through a wide portfolio of power devices including synchronous rectification ICs.
Which is synchronous rectification IC for switch mode power supply?
Infineon’s synchronous rectification (SR) controller family IR1161L and IR11688S for switch mode power supply (SMPS) meets the new 2016 standards set forth by the U.S. DoE and EU CoC demanding higher efficiency from external power supplies.
Which is synchronous rectification ICS-Infineon Technologies?
Together with Infineon’s best-in-class OptiMOS™ and StrongIRFET™, IR1161L and IR11688S are here to provide a simple way to drive the MOSFETs and therefore improve efficiency by 1 to 3% depending on output loads. IR1161L is targeting flyback SMPS especially in charger and adapter applications while IR11688S is focusing on LLC SMPS applications.
Which is the best description of active rectification?
Active rectification, or synchronous rectification, is a technique for improving the efficiency of rectification by replacing diodes with actively controlled switches such as transistors, usually power MOSFETs or power BJTs. Whereas normal semiconductor diodes have a roughly fixed voltage drop of around 0.5-1 volts,…