Abstract: The present invention is a switching power supply having efficient light load regulation at high input voltage. The power supply comprises a pulse-width modulator integrate circuit along with two separate voltage buses. A transformer is connected to the first voltage bus via a first primary winding and is connected to the second voltage bus via a second primary winding both primary windings have a predetermined number of turns proportional to voltage supplied by the two voltage buses. The power supply further comprises a pair of switches connected to the two primary windings and driven by the integrated circuit.

Abstract: A call server for providing reminders to a user via a telephone, comprising a call control software agent for receiving a reminder message and time from the user, and a schedule reminder application for contacting the user via the user's telephone at the scheduled time and then playing the reminder message. Activation of the reminder system may take place either at the user's telephone or desktop computer. According to an aspect of the invention, if the user does not answer the telephone reminder, the schedule reminder application initiates additional calls via the call control agent to secondary numbers and devices such as cellular phones, pagers, home telephone numbers.