Abstract: A database stores a plurality of asynchronous transfer mode (ATM) profiles for a plurality of different potential usage patterns for a digital subscriber line (DSL) service. The database associates each of the ATM profiles with a respective buffer size for a network element that is to communicate ATM traffic associated with the DSL service. A data collector collects application layer traffic data for usage of the DSL service by a DSL user. An ATM buffer manager selects an ATM profile, from the plurality of ATM profiles in the database, based on its similarity to the application layer traffic data. The ATM buffer manager allocates to the DSL user a first buffer size in the network element based on the buffer size being associated with the ATM profile in the database.

Abstract: A pulse width modulation control circuit for a high frequency series resonant AC/DC converter suitable for use in computing and network equipment such as personal computers, servers and high-speed routers includes an auxiliary transformer, a zero crossing detector, a delay circuit, a synchronization circuit and an output circuit.

Abstract: A high-frequency resonant sine wave DC to AC inverter suitable for use in a personal computer (PC) power supply includes a full-bridge inverter, a resonant circuit, a phase shift modulation circuit, and a resonant gate driver. The resonant gate driver provides sinusoidal gate drive signals to the full-bridge inverter enabling highly efficient operation on the inverter.

Abstract: A pulse width modulation control circuit for a high frequency series resonant AC/DC converter suitable for use in computing and network equipment such as personal computers, servers and high-speed routers includes an auxiliary transformer, a zero crossing detector, a delay circuit, a synchronization circuit and an output circuit. The pulse width modulation control circuit provides phase and frequency synchronized gating signals enabling high conversion efficiency, with little or no cross conduction losses and increased effective pulse width.

Abstract: A high-frequency resonant sine wave DC to AC inverter suitable for use in a personal computer (PC) power supply includes a full-bridge inverter, a resonant circuit, a phase shift modulation circuit, and a resonant gate driver. The resonant gate driver provides sinusoidal gate drive signals to the full-bridge inverter enabling highly efficient operation on the inverter.