"This reference design allows designers to immediately see the benefit of IR's one-cycle control performance without a major redesign or spending a lot of time evaluating and prototyping a new PFC circuit," said Stephen Oliver, marketing manager for AC-DC products at International Rectifier.

Designing with the IR1150 is simplified with the aid of a two-step process online design tool: Users simply enter system requirements, and the design tool generates a complete bill of materials. The design tool simplifies active PFC development so that designers can replace old, passive solutions with poor power factors and low efficiency with modern, more efficient solutions.

Reference Design Highlights

The reference design kit comes complete with an assembled and tested reference design board, five IR1150STR ICs, two 8ETX06 Hyperfast rectifiers, user's guide, application notes, device data sheets and printed circuit board files (Gerber, .dxf and .cad).

See the AC-DC Design Kits site for Data sheets and more details

IR1150 IC Highlights

The IR1150 µPFC control IC, offered in a compact SO-8-package with a lead-free option, cuts PFC control board space as much as one-half, and enables a simplified and flexible high density solution for computing, consumer electronics and home appliances from 75W to 4kW. Featuring IR's one cycle control (OCC) approach, the device delivers the performance of continuous conduction mode (CCM) PFC with the simplicity, reliability and low component count of a discontinuous current mode (DCM) circuit for PFC applications.

With unity PF as the ultimate goal, the IR1150 enables 0.999 PF with only 4% total harmonic distortion, enabling AC-DC applications to conform to international legislative requirements such as IEC 1000-3-2 in Europe, JIC C 61000-3-2 in Japan and the China Compulsory Certificate (CCC) for products using more than 75W. As manufacturers implement PFC in response to these energy standards, the IR1150 control IC simplifies effective PFC solutions, and enables a single design that can be used worldwide.