Low power smart adapter for e.g. portable computer, has sleep circuit including sleep stop circuit connected to microcontroller circuit, and auxiliary electric power supply connected to microcontroller circuit

摘要

The adapter (100) has a switch circuit (10) connected to an alternating current supply source (40). A control circuit provides a recharge switch (27) connected to the switch circuit. The control circuit includes an outlet unit (21) connected to the recharge switch, and a microcontroller circuit (28) connected to the recharge switch and the outlet unit. A sleep circuit (30) e.g. universal serial bus (USB)battery, includes a sleep stop circuit (31) connected to the microcontroller circuit, and an auxiliary electric power supply (32) connected to the microcontroller circuit.