Power Supply Control is changing rapidly. Switch mode power supply (SMPS) systems are quickly evolving from analog designs to fully digital, system connected solutions.

This digital migration is being driven by:

• Elimination of expensive magnetics
• New options which were not possible
• Sequenced start and shutdown
• Inexpensive power factor correction
• Power on test and diagnostics
• Peak current detection and shutdown
• And many more...

All of these lead to reduced BOM costs, expanded features and more satisfied customers.

Power Supply Control is fairly complex because you have to provide a digital control loop if you choose to do a fully digital design to achieve the full benefits of the technology.