Everyone likes smaller AC-DC adapters, and GaN technology has hastened the production of high-density converters. Despite this progress, the bulk capacitor remains challenging to shrink. Power Integrations has a solution with its MinE-CAP ICs, which dynamically adjust bulk input capacitance based on input voltage. This results in a substantial reduction of occupied volume, making it easier for designers to meet high power density requirements.

Christophe Basso for Future Technology Magazine has written a great article on MinE-CAP and we think it's worth a read, so here's the link - https://www.futureelectronics.com/ftm/security-and-encryption/how-the-mine-cap-controller-shrinks-bulk-capacitor-size/