Industry White Papers

Three Keys to Designing Rapid-start Power Supplies that Never Fail

June 17, 2018 by Vicor Corporation

Design of a rapid-start, isolated power system presents unique challenges. These systems, leveraged in rapid-start applications, need to start in milliseconds - every time. The design of isolated, regulated power systems tends to focus on performance, particularly on the ability to adapt to rapidly changing voltage demands from the load. By assuming the constant presence of source voltage, this focus neglects other factors that are becoming increasingly important. For instance, the need to provide reliable rapid (under-10ms) start up.

However, there are systems where the power source isn't present and the system must be active within milliseconds (ms) of application of input power. These systems typically require isolation from the power source to keep grounds isolated, or create negative rails for system safety in the event of high voltage source spikes.

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