Abstract: A power converter includes a primary-side rectifying/filtering circuit, an AC-DC converter, a DC/DC converter, a primary-side controller, a secondary-side rectifying controller, and a secondary-side feedback controller. The primary-side rectifying/filtering circuit receives an input voltage, and rectifies and filters the input voltage into an adjusted input voltage. The AC-DC converter receives the adjusted input voltage. The primary-side controller provides a first control signal to control the AC-DC converter to convert the adjusted input voltage into a DC input voltage, and provides a second control signal to control the DC-DC converter. The secondary-side rectifying controller provides a third control signal to control the DC-DC converter to convert the DC input voltage into a conversion voltage to supply power to a load according to a gain condition.

Abstract: The present invention is a system that enable individuals, whether working pro se or part of organizations, to collaborate on work items across electronic networks. The major innovations are specific to the domain of work collaboration: 1) Organization of work topics in a hierarchical and tabular fashion with user interface tailored to traversing any hierarchy with ease; 2) Automatic adjustment of user interface based on the display size of user devices; 3) Use of templates to automate work item creations; 4) Roles that enable collaboration by active participants and viewing by passive stakeholders ; 5) Sharing of digital media within the context of applicable work hierarchies; 6) Notifications, typically sent to smart phones, to alert users regarding work topics that need attention; 7) Exchanges of text messages within the context of applicable work hierarchies.