AC DC Power.

Design service for AC DC and DC DC switch mode power supplies, IT, entertainment, military and commercial, for use worldwide. Designs are based entirely around customer requirements. Typical questions may include, but are not limited to:

• Is high efficiency important?

• How important is cost?

• Have you considered, or do you require a digital architecture, or digital interface?

• Do you need PMBUS ?

• Is Built In Test Required (BITE)?

• What protection features are required? Over/Under Voltage, Short Circuit, Multi Current Limit, etc.

• Does your target market require compliance to the Climate Savers initiative or the EPA?

• What cooling methods are available?

• What is the environment?

• Does the design need to be backward compatible with an existing product?

• Do you have a specification?

• Are you aware of the different compliance requirements worldwide?

Choice of topology is key. With around a dozen basic topologies available, the best topology for a particular application will be based on specific power supply requirements, including time and cost factors. The right topology will mainly be based on power level, but for low volume designs, engineering NRE costs may be more important than BOM costs. For high volume designs, the extra costs in engineering to develop new solutions to reduce cost and component count, are usually beneficial in achieving a design that meets an exact custom specification, bringing with it improved performance and increased reliability.

PSpice simulation for all aspects of the design, simulating power blocks under normal, transient and abnormal conditions.Other important design parameters surround:

• EMI radiated and conducted.

• Surge compliance and levels

• Lightning protection

• Noise and ripple, common mode and differential

• Reliability MTBF

• Digital feature sets and communication bus protocol

• Designs include custom packaged, custom modified off the shelf, server products and special to type products.