Device and method for managing optical drive power supply

Abstract

The invention relates to a device and a method for managing an optical drive power supply. The device comprises a connecting interface with a plurality of pins and an optical drive, wherein the connecting interface is connected with a host computer. A withdrawing key is connected to one pin. A feeding sensor is connected with the other pin. A power supply loop supplies power for the optical drive, and the optical drive power supply is closed and opened by the control of the host computer, when the unemployed time of the optical drive is timed to exceed the preset time, a microprocessor of theoptical drive informs the host computer to close the optical drive power supply, and the host computer supplies weak current for the pins connecting the withdrawing key and the feeding sensor so as to detect the signal change and open the optical drive power supply for saving electricity.

Description

technical field [0001] The invention relates to an optical disc drive, in particular to a power management device and method for controlling the power supply of the optical disc drive to save power consumption. Background technique [0002] The optical disc drive is an important accessory of a host computer such as a computer, and the required power must be supplied by the host computer and occupies a certain proportion of power consumption. Enabling the CD player to save energy and effectively use power can not only reduce the power load of the host computer, but also increase the power usage time of portable electronic products. [0003] like figure 1 As shown in FIG. 2 , it is a state switching relationship diagram of a multimedia protocol in the prior art. The prior art is the national announcement No. 291686 patent case, disclosing that according to the multimedia protocol, the optical disc drive will be in idle (Idle), standby (Standby), hibernation (Sleep), use (Act...

AI Technical Summary

Problems solved by technology

[0004] However, in order to wake up the optical disc player at any time, the control systems such as the central processing unit at the host end of the prior art and the control systems such as the microprocessor at the optical disc player end still need to partially maintain power to maintain the connection of the control signals

Although there is another national announcement of patent No. I255449, which discloses that when the CD-ROM enters the dormant state, more internal parts of the CD-ROM are further shut down to save more power, but in order to wake up the CD-ROM at any time, it is still necessary to reserve part of the power. , and the drive cannot be completely powered off

Therefore, the conventional power management methods for optical disc players cannot meet the actual needs, and there are still problems to be solved urgently.

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