| 摘要 |
An energy conserving device is adapted to be connected to an infrared receiving circuit of a remote controlled apparatus that receives an infrared control signal from a remote controller, and controls the supply of an operating voltage to the infrared receiving circuit. The energy conserving device includes an input voltage unit for providing a voltage output that is lower than the operating voltage, a voltage increasing unit, and a sleep control unit. The voltage increasing unit is operable in one of a wake mode, where the voltage increasing unit is enabled to generate the operating voltage from the voltage output of the input voltage unit and to supply the operating voltage to the infrared receiving circuit, and a sleep mode, where the voltage increasing unit is inhibited from generating the operating voltage to the infrared receiving circuit. The sleep control unit is adapted to receive the infrared control signal from the remote controller, and controls the voltage increasing unit to operate in the wake mode for a predetermined time period upon receiving the infrared control signal from the remote controller, and in the sleep mode when the sleep control unit ceases to receive the infrared control signal after the predetermined time period has elapsed. |
