Transcription of Control Driven Synchronous Rechtifiers in Phase …
1 Control Driven Synchronous Rectifiers In Phase Shifted Full Bridge Converters Application Note . Steve Mappus .. UC3895 A B UCC37324 . 4 MOSFET . (PWM) .. 1. 2. 2. 4. 3. 5. 4. 7. 5. 8. 6. 8.. 1 3. 2 4. 3 AB 5. 4 AB PWM 6. 5 AB PWM 7. 1. TI. Control Driven Synchronous Rectifiers In Phase Shifted Full Bridge Converters Application Note 1 .. 1 MOSFET . QA,QB,QC,QD QA QD QB QC . QA . QC QB QD .. QA,QB,QC,QD .. t0->t1 QA QD . Q2 Q1 L1 L2 . L1 L2. Q2 Q2 . t1->t2 QA QC VT Q1 Q2 . L2 t0->t1 L1 . L L1 L2 . IM .. t2->t3 QC QB . Q1 Q2 L1 L2 . L2 L1. Q1 Q1 . t3->t4=t0 QB QD VT Q1 Q2. L1 t2->t3 L2 . L L1 L2 . t1>t2 . IM . 2. TI. Control Driven Synchronous Rectifiers In Phase Shifted Full Bridge Converters Application Note 1 . 3. TI. Control Driven Synchronous Rectifiers In Phase Shifted Full Bridge Converters Application Note 2 .. (PWM controller) . 1 t1->t2 t3->t4 .. 1 . PWM . 2 . 2 NAND PWM .. IC .. 4. TI. Control Driven Synchronous Rectifiers In Phase Shifted Full Bridge Converters Application Note 3.
2 1 t1->t2 t0->t1. Q1 t1->t2 . Q1 GATE 1 GATE B . t3->t4 t2->t3 . Q2 t3->t4 Q2 . GATE 2 GATE A 3 PWM. GATE A GATE B . 3 AB . 5. TI. Control Driven Synchronous Rectifiers In Phase Shifted Full Bridge Converters Application Note 3 1 3 . 1 . 3 . 1 3 .. Q2 Q1 .. t1->t2 t3->t4 (dead time) . (circulating current) .. (clamped) .. GATE A GATE B PWM 2.. 4 . 4 AB PWM . 6. TI. Control Driven Synchronous Rectifiers In Phase Shifted Full Bridge Converters Application Note 4 . 5 AB PWM . 2 UCC3895 .. (adaptive delay set, ADS) . UCC3895 .. UCC37324 MOSFET 4 .. UCC3895 EVM-001.. UCC3895 EVM-001 UCC3895 AB .. 5 AB PWM . 7. TI. Control Driven Synchronous Rectifiers In Phase Shifted Full Bridge Converters Application Note 5 . PWM A B .. 6.. 1. Balogh, L. Design Review: 100-W, 400-kHz, DC/DC Converter With Current Doubler Synchronous Rectification Achieves 92% Efficiency, Topic 2, SEM 1100 Power Supply Design Seminar Manual, Unitrode Corporation 2. The Current Doubler Rectifier: An Alternative Rectification Technique For Push-Pull and Bridge Converters, Application Note, Texas Instruments Literature No.
3 SLUA121. 3. UCC3895, BiCMOS Advanced Phase Shift PWM Controller, Texas Instruments Literature No. SLUS157. 4. UCC37324, Dual 4-A Peak High Speed Low-Side Power MOSFET Drivers, Texas Instruments Literature No. SLUS492. 8. TI.
