Electronic equipment and power management circuit

Abstract

The invention provides electronic equipment and a power management circuit, wherein the electronic equipment comprises a power port, a power management module, a power control module and a switch K1, the power port is used for providing power to the electronic equipment; the power management module is used for outputting the power or stopping outputting the power through a power output pin after a control signal input pin receives a power management control signal for connecting the power supply or for connecting the power and disconnecting the power; the power control module comprises a power input pin and an IO (Input / Output) pin; the power input pin is used for receiving the power output from the power output pin of the power management module; the IO pin is used for outputting the power management control signal to the control signal input pin of the power management module; the switch K1 is used for outputting the power management control signal for connecting the power to the control signal input pin when being closed; and the switch K1 is an unlocked switch. With the adoption of the electronic equipment and the power management circuit, the unlocked switch can be used for turning on the electronic equipment; when the switch is used as a turn-on press key, the electronic equipment can be turned off through the sending of a signal under special conditions after being turned on; after being turned off, the electronic equipment consumes no power; and therefore, the power consumption of the electronic equipment is saved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to electronic equipment and power management circuits. Background technique [0002] As users have higher and higher requirements for the integration and portability of electronic equipment, when developing and designing electronic equipment, on the one hand, it is necessary to consider integrating multiple functions into a single electronic equipment; on the other hand, it is also necessary to Consider the portability requirements for electronic equipment. In order to meet the requirement of portability, it is usually required that the electronic device can be powered by a battery, and the volume should not be too large. [0003] In order to meet the above needs of users, power-saving design has become a key research and development direction of electronic equipment in recent years. In order to reduce the power consumption of electronic equipment, you can consider using low-p...

AI Technical Summary

Problems solved by technology

Obviously, when adopting the power management scheme of the prior art, even in the dormant state, the electronic equipment still consumes a certain amount of power

[0005] If you want the electronic equipment to enter a state that does not consume electric energy, in the prior art, it is usually necessary to use a special switch (for example, a self-locking switch) set in the electronic equipment to shut down the electronic equipment by disconnecting the power circuit. After the electronic device is switched on, the electronic device can only be turned on again by turning on the power circuit using a special switch, and the electronic device cannot re-enter the working state based on the response to certain events or signals; similarly, using a special switch to turn on the power circuit Once an electronic device is turned on, the electronic device cannot also be turned off based on a response to some event or signal

Obviously, the above-mentioned special switch cannot use a normally open button switch similar to that used by keyboard keys, so the special switch cannot be used to input other signals to electronic equipment except for the power-on signal and the power-off signal.

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