PMP9622 Reference Design

Texas Instruments

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


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.

  • 120Vac input: 44Vdc @ 2-8A output>92% efficiency achieved @ 8AHigh-side Gate Drive Tranformers used for lowest cost implementation.Low-cost BJT flyback used for design biasFlexible setting of Voltage and Current levels by fixed resistor values or micro-processor in real design 
Product Categories
  • Power management


Part Number Name Companion Part
LP2985A-33 LP2985A-33 Buy Datasheet
OPA376 OPA376 Buy Datasheet
TLC272 TLC272 Buy Datasheet
UCC28720 UCC28720 Buy Datasheet
UCC37324 UCC37324 Buy Datasheet
UCC3895 UCC3895 Buy Datasheet

Bill Of Materials

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Test Data

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Other Documents

Title Updated Type Size (KB)
PMP9622 Gerber 12 Mar 2015 ZIP 598
PMP9622 Assembly Drawing 12 Mar 2015 PDF 270
PMP9622 BOM 12 Mar 2015 PDF 148
PMP9622 Schematic 12 Mar 2015 PDF 355