Transcription of Zero Voltage Switching - Texas Instruments
{{id}} {{{paragraph}}}
Example: quiz answers
Zero Voltage Switching - Texas Instruments
zero Voltage SwitchingResonant Power ConversionBill Andreycaking zero current, hence zero power while true, two obvious concerns canin1pede the quest for high efficiency operationwith high Voltage nature of the resonant tank and zerocurrent Switching limitation, the peak switchcurrent is significantly higher than its squarewave counterpart. In fact, the peak of the fullload switch current is a minimum of twice thatof its square wave kin. In its off state, theswitch returns to a blocking a high voltageevery cycle. When activated by the next drivepulse, the MOSFET output capacitance ( Coss)is discharged by the FET, contributing a signifi-cant power loss at high frequencies and highvoltages. Instead, both of these losses areavoided by implementing a zero Voltage switch-ing technique [9,10]. zero Voltage Switching OverviewZero Voltage Switching can best be definedas conventional square wave power conversionduring the switch's on-time with "resonant" Switching transitions.
constant off-time control which varies the conversion frequency, or on-time to maintain ... power converters [4,5,6,7,8]. In theory, the on-off transitions occur at a time in the resonant ... gate drive requirements are somewhat reduced in a ZVS design due to the lack of the gate to drain (Miller) charge, which is deleted when ...
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: