350W Constant Voltage - Constant Current (CVCC) Phase-Shifted Full Bridge reference design

(ACTIVE) PMP9622

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Key Document

Description

This reference design uses the UCC3895 Phase-Shifted Full Bridge controller to implement a high efficiency, 120VAC input to 44Vdc up to 8A output.  The power supply is set up to be  constant voltage-constant current.  The voltage and current are set by fixed resistor values and could be set by micro-processor in the actual product.  The design is biased by a low-cost BJT Flyback using the UCC28720 PWM controller.

Features
  • 120Vac input, 44Vdc @ 2-8A output
  • >92% efficiency achieved @ 8A
  • High-side Gate Drive Tranformers used for lowest cost implementation.
  • Low-cost BJT flyback used for design bias
  • Flexible setting of Voltage and Current levels by fixed resistor values or micro-processor in real design 

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

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Design Files

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Bill of Materials (BOM)

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TI Devices (5)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
OPA376  Precision, Low Noise, Low Iq Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TLC272  Dual Single Supply Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
UCC28720  Constant-Voltage, Constant-Current Controller with Primary-Side Regulation for Bipolar Power Devices  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC37324  Dual 4 A Peak High Speed Low-Side Power MOSFET Drivers  Gate Drivers  Sample & Buy View Design Kits & Evaluation Modules
UCC3895  BiCMOS Advanced Phase Shift PWM Controller  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
OPA376 Download Download
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TLC272 Download Download
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UCC28720 Download Download
UCC37324 Download Download
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UCC3895 Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 354 12 Mar 2015 63
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 598 12 Mar 2015 13
PDF 270 12 Mar 2015 15
PDF 148 12 Mar 2015 14
PDF 355 12 Mar 2015 88

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