TWI419439B - Method for powering electronic devices - Google Patents

Description

Electronic device power supply method

The invention relates to a power supply system for an electronic device, in particular to a power supply method for an electronic device that does not need to be restarted when the main battery is replaced.

According to the current common portable electronic devices, such as notebook computers, personal digital assistants (PDAs) or mobile phones, the power system is generally equipped with a battery and an AC power supply. Under normal circumstances, portable electronic devices use the power of this battery. Before the battery power is about to run out, it is necessary to immediately connect the AC power supply to supply power. Otherwise, the portable electronic device should be shut down and wait for replacement. After the battery, reboot again.

However, in the process of replacing the battery, the portable electronic device must be shut down, and the operation of turning off the power after the power is turned off may cause the portable electronic device to be interrupted for several minutes, regardless of whether the portable electronic device is a notebook computer or not. Personal digital assistant or mobile phone, the interruption time caused by replacing the battery is lightly delayed for several minutes. In serious cases, it may even cause the business opportunity to be lost. Especially for business people, the loss of a laptop or mobile phone for a few minutes can cause great losses.

In order to solve the above problems, related technologies have been developed. For example, the invention patent of the "built-in temporary battery of portable computer communication device" of China No. 550450 is an example, which provides a portable computer. The built-in temporary battery of the communication device switches the internal battery of the portable computer communication device through a switch, and the internal battery and the built-in temporary battery are replaced by a charging circuit unit Charging, when the internal battery is exhausted or removed, if there is no AC adapter (AC ADPT) external power supply, it will switch to the built-in temporary battery to provide replacement when the internal battery is replaced. The time required, when the system detects that a new battery has been replaced, it automatically jumps to be powered by the new battery.

However, in the invention patent No. 550450, the disclosed technology is switched between a built-in temporary battery or an internal battery through a switch, and such a design is still inconvenient, in case the user does not Operating the diverter switch may cause the internal battery to run out and not be powered by the built-in temporary battery.

Please refer to China's No. 592403 "Power Supply Device for Long-Life Battery and Built-in Continuous Power Supply Device", which proposes a power supply device for providing a long-life battery, including: AC/DC converter, charger circuit Long-life battery, boost circuit, power exchange circuit. The AC/DC converter receives the AC voltage input from the AC power source, and converts it into a DC voltage and outputs it to the charger circuit. The charger circuit receives the DC voltage outputted by the AC/DC converter and charges the long-life battery. The long-life battery releases the stored voltage when the AC power source does not provide an AC voltage, and the over-boost circuit raises the long-lasting battery. The released voltage is output as a power supply to the computer.

The aforementioned Patent No. 592403 discloses the technical concept of using a long-life battery with a booster circuit as a backup power source, but in this patent, the relevant control method is not disclosed, and there is no inspection of the built-in long-lasting battery. Or the judgment procedure, in case of insufficient power or failure of the long-term battery, it may cause the problem of the crash, so there is still a need for further improvement.

Moreover, the Panasonic HHR 250 sch battery used in the disclosure has a voltage of only 1.2V, and it is necessary to connect several batteries in series to generate sufficient voltage, so that the overall length of the long-lasting battery becomes quite large. For today's thin and light notebooks or personal digital assistants or mobile phones that are very small in size, they are simply not applicable, so there is still a need for further improvements.

In view of the above, the main object of the present invention is to solve the above problems and to provide a power supply method for replacing an electronic device of a main battery without restarting.

For the above purpose, the power supply method of the electronic device of the present invention comprises: determining whether the electronic device receives external power supply; determining whether a main battery assembled to the electronic device can supply power to the electronic device; Receiving an external power supply and the main battery can supply power to the electronic device, determining whether a storage battery assembled in the electronic device has a stored amount of electricity reaches a preset value; when the storage capacity of the backup battery reaches the preset value, the standby The battery supplies power to the electronic device.

Thereby, when the external power source is not used and the main battery cannot supply power to the electronic device, the built-in backup battery supplies the electronic device power, so that the electronic device can be replaced by the battery without restarting.

In a preferred embodiment, the electronic device has a basic input/output system (BIOS) program, and the basic input/output system performs various determinations and controls.

In a preferred embodiment, after the backup battery supplies power to the electronic device, the method further includes: determining whether the main battery is assembled back to the electronic device, and if the main battery is assembled back to the electronic device, the main battery pair The electronic device is powered.

In a preferred embodiment, when the storage capacity of the backup battery does not reach the preset value, the electronic device transitions to a sleep state.

In a preferred embodiment, when the electronic device transitions to the sleep state, the electronic device turns off all of the universal serial bus bars.

In a preferred embodiment, when the electronic device receives external power supply, the backup battery and the main battery are simultaneously charged.

In a preferred embodiment, when the backup battery supplies power to the electronic device, the electronic device is adjusted to a power saving mode.

In a preferred embodiment, when the backup battery supplies power to the electronic device, the electronic device turns off the display; when the electronic device is powered by the main battery, the electronic device turns the display back on.

In a preferred embodiment, the main battery cannot supply power to the electronic device, including the main battery being detached from the electronic device or the storage capacity of the main battery being lower than a threshold.

In a preferred embodiment, when the backup battery supplies power to the electronic device, the power indicator of the electronic device is presented in a manner of changing the flashing frequency.

In a preferred embodiment, after determining whether the electronic device receives power from the external power source, the method further includes: determining whether to perform a manual switching; if yes, determining whether the main battery assembled to the electronic device can be the electronic device The power is supplied, and it is directly judged whether the storage capacity of the backup battery reaches a preset value; if not, it is determined whether the main battery assembled in the electronic device can supply power to the electronic device.

The embodiments of the present invention are described below by way of specific examples, and those skilled in the art can readily appreciate the other advantages and advantages of the present invention. The present invention may be embodied or applied in various other specific embodiments, and various modifications and changes can be made without departing from the spirit and scope of the invention.

The power supply method of the electronic device of the present invention is applied to a portable electronic device having a basic input/output system (BIOS) program, and the electronic device has a display such as a notebook computer, a personal digital assistant or a mobile phone.

The electronic device in this embodiment is provided with a detachable main battery as a main power supply, and the electronic device can receive external power supply, and can be powered by an external power source when used on a table, and the AC power supply is powered by the AC power supply. Charge the battery. In addition, the electronic device has a built-in battery with low power storage, high voltage and high output power, and is used with a booster circuit. The battery requires a lithium battery or nickel with a voltage of 3.6V or more and a power storage capacity of 550 mAh or more. Hydrogen battery, taking the UitraFire 16340 battery as an example, its rechargeable lithium battery with a diameter of about 16 mm, a length of 34 mm, a voltage of 3.7V, and a power storage capacity of 880 mAh, with a booster circuit, can output a voltage of 7.2V, and a sustainable supply of 5 ~10 minutes of electricity. A backup battery system conforming to this specification can be applied to the power supply method of the electronic device of the present invention.

Please refer to FIG. 1 , which is a flow chart showing a power supply method of the electronic device of the present invention. The power supply method of the electronic device of the present invention includes the following steps: in step S10, it is determined whether the electronic device receives external power supply; if yes, proceed to step S20; if not, proceed to step S30.

In step S20, when the electronic device receives the external power supply, the backup battery and the main battery are simultaneously charged, and the step ends.

In step S30, it is determined whether the main battery assembled in the electronic device can supply power to the electronic device; if not, repeat step 10; if yes, proceed to step S40. Wherein, the main battery can not supply power to the electronic device, including the main battery being removed from the electronic device or the storage capacity of the main battery is lower than a critical value, and the threshold is usually set to 5% to 10% of the total storage capacity of the main battery.

In step S40, it is determined whether the storage capacity of the backup battery reaches a predetermined value; if not, step S50 is performed; if yes, step S60 is performed.

In step S50, the electronic device is switched to the sleep state, and all the universal serial bus (USB) are turned off, and the steps are ended.

In step S60, the electronic device is powered by the backup battery, and is switched to the power saving mode, and the display is turned off to save power, and the power indicator light is changed to the flashing frequency, and then step S70 is performed.

In step S70, it is determined whether the main battery is loaded back to the electronic device. If not, the process proceeds to step S70; if yes, the process proceeds to step S80.

In step S80, the electronic device is powered by the main battery, and the display is turned back on, and the power indicator is returned to the non-flashing state, and then the step is ended.

In the present embodiment, the power supply method of the electronic device of the present invention is processed and controlled by a basic input/output system (Basic I/O system; BIOS) program.

Whether the main battery can supply power to the electronic device in step S30 includes: the power of the main battery is lower than a critical value or the main battery is removed.

The preset value of the reserve battery storage capacity in step S40 is an adjustable value, and preferably 10% to 15%. When the storage capacity of the backup battery is lower than the preset value, it means that the backup battery may not provide sufficient power for the electronic device to complete the work of replacing the battery; and when the storage capacity of the backup battery is higher than the preset value, It indicates that the backup battery can provide enough power for the electronic device to complete the work of replacing the battery.

Furthermore, in step S60, since the power that the backup battery can provide is limited, when the step S60 is performed, the basic input/output system is automatically adjusted to the power saving mode (or the maximum battery mode) and the display is turned off, and the electronic device is turned off. The power indicator changes the flashing frequency to remind the user to complete the battery replacement as soon as possible. When the main battery is replaced by the electronic device, the process proceeds to step S80, at which time the system automatically resets the system from the power saving mode to the normal state by the basic input/output system.

By using the power supply method of the electronic device of the present invention, the main battery of the electronic device can be exhausted, or the main battery can be automatically operated by the basic input/output system (BIOS) when the main battery is to be replaced, and the backup battery can be used. The booster circuit is used to provide the power required by the electronic device without shutting down the electronic device. After the new main battery is inserted, the basic input/output system (BIOS) automatically detects and automatically adjusts the new master. Battery powered normal mode. Accordingly, the electronic device can perform the work of replacing the battery without shutting down and then restarting.

Furthermore, the backup battery of the present invention is a UitraFire 16340 model battery having a diameter of about 16 mm, a length of 34 mm, a voltage of 3.7 V, and a power storage capacity of 880 mAh. Only one battery can be used with a booster circuit to achieve the aforementioned effect. It is more suitable for use in a portable electronic device with a thin and light design.

Referring to FIG. 2, which is a flowchart of a power supply method for an electronic device according to a second embodiment of the present invention, further having a mode of manual switching control, and determining, in step S10, whether the electronic device receives external power supply; Then, proceed to step S20; if no, proceed to step S100.

In step S100, it is determined whether or not manual switching is performed. If yes, step S40 is performed; if not, step S30 is performed.

The remaining steps are as described in the first embodiment.

The manual switching mode of the setting step S100 is that the user has learned that the main battery power is about to be exhausted, that the control is performed when the main battery is about to be replaced, and the user operates the specific button of the electronic device (for example, output). The number of 119 or 911; or long press the power button for ten seconds) to perform manual switching, and the subsequent steps can be performed without the battery being pulled out.

The manual switching performs the action of step S100, in addition to allowing the user to replace the new battery or the battery with a large amount of power in advance; it is also possible for the user to check whether the power supply method of the electronic device of the present invention can operate normally. Thus, the same effects as the first embodiment described above can be achieved.

The above description is only intended to describe the preferred embodiments or embodiments of the present invention, which are not intended to limit the scope of the invention. That is, the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention or the scope of the invention are covered by the scope of the invention.

S10~S80‧‧‧Steps

S100‧‧‧ steps

1 is a flow chart showing a power supply method of an electronic device according to the present invention; and FIG. 2 is a flow chart showing a power supply method of the electronic device according to a second embodiment of the present invention.

S10~S80. . . step

Claims (9)

A method for supplying power to an electronic device includes: determining whether the electronic device receives power from an external power source; determining whether to perform a manual switching; if yes, skipping a step of determining whether a main battery assembled to the electronic device can supply power to the electronic device, And directly determining whether the storage battery of the backup battery reaches a preset value; if not, determining whether the main battery assembled in the electronic device can supply power to the electronic device; determining whether a main battery assembled in the electronic device can The electronic device is powered; when the electronic device is not receiving external power supply and the main battery is unable to supply power to the electronic device, determining whether the stored battery of the backup battery assembled to the electronic device reaches a preset value; when the backup battery is The stored battery reaches the preset value, and the backup battery supplies power to the electronic device. The method of powering an electronic device according to claim 1, wherein the electronic device has a basic input/output system (BIOS) program, and the basic input/output system performs various judgments and controls. The power supply method of the electronic device of claim 1, wherein the main battery is powered by the electronic device, and the battery is powered by the backup device, and the battery includes: It is determined whether the main battery is assembled back to the electronic device, and if the main battery is assembled back to the electronic device, the electronic device is powered by the main battery. The method of supplying power to an electronic device according to claim 1, wherein the electronic device switches to a sleep state when the storage capacity of the backup battery does not reach the preset value. The method of powering an electronic device according to claim 4, wherein when the electronic device is switched to the sleep state, the electronic device turns off all of the universal serial bus bars. The method of supplying power to an electronic device according to claim 1, wherein when the electronic device receives power from an external power source, the backup battery is simultaneously charged. The method of supplying power to an electronic device according to claim 1, wherein when the backup battery supplies power to the electronic device, the electronic device adjusts to a power saving mode or turns off the display, and when the main battery is When the electronic device is powered, the electronic device will turn the display back on. According to the power supply method of the electronic device of claim 1, wherein the main battery cannot supply power to the electronic device, the main battery is detached from the electronic device or the storage capacity of the main battery is lower than a critical value. value. The power supply method of the electronic device according to claim 1, wherein when the backup battery supplies power to the electronic device, the power indicator of the electronic device is presented in a manner of changing the flashing frequency.