Image

Full-Bridge PWM Controller Achieves 90% Efficiency

March 3, 2010
The UCC28950 phase-shifted full-bridge PWM controller with synchronous MOSFET control outputs and light load power management can achieve efficiencies above 90% from light load to full load

The UCC28950 phase-shifted full-bridge PWM controller with synchronous MOSFET control outputs and light load power management can achieve efficiencies above 90% from light load to full load, enabling it to meet 90+ Climate Savers efficiency standards. The device features a 10:1 wide range adaptive zero voltage switching control scheme. It also has optimized adaptive control for the output synchronous rectifiers including on/off control to optimize efficiency at lighter loads. Other features include synchronous rectifier outputs, advanced power management functions, soft start with enable function, and a sync-in and sync-out function with 90° phase shift. Available in a TSSOP-24 package, price for the UCC28950 is $4.25 each/1,000.  TEXAS INSTRUMENTS INC., Dallas, TX. (800) 477-8924.

About the Author

Staff

Articles, galleries, and recent work by members of Electronic Design's editorial staff.

Sponsored Recommendations

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!