TW201914154A - Mobile power supply device and power supply method thereof - Google Patents

Abstract

A power bank and power supplying method thereof are disclosed in present invention. The power bank is applied to supply power to a computing device with a computing device code. The power bank includes a control module, a switch module, a boosting circuit, and a battery module stored with a mobile power. The control module is installed with a power supplying code. When the power bank is electrically connected to the computing device, and the control module effectively read the computing device code, the control module generates a control signal. When the switch module received the control signal, the switch module switchably turns on the battery module so as to transmit the mobile power to the boosting circuit. Through the boosting circuit, the mobile power is boosted to a boosting power, which is further supplied to the computing device. After receiving the boosting power and reading the power supplying code, the computing device is operated under a mobile work frequency.

Description

   Mobile power device and power supply method thereof   

The invention relates to a mobile power supply device and a power supply method thereof, and particularly to a method for controlling a switching module to conduct a battery module to transmit mobile power when a control module determines that a computing device identification code is a boost power supply code. To a boosting circuit, and boosting the mobile electrical energy into a boosted electrical energy by a boosting circuit and supplying the boosted electrical energy to a portable computing device and a power supply method thereof.

With the rapid development of technology, more and more electronic products have emerged at the historic moment to meet people's needs, and smart phones are almost one hand. The battery of most smart phones cannot be easily removed without professional tools, so you need to use the charging cable to charge the built-in battery. It cannot be replaced with another backup battery if the battery of a conventional button-type mobile phone is out of power. . However, when the smart phone is out of power, the user may be in a place where the mains power cannot be connected and the smart phone is charged. Therefore, a mobile power source has emerged to meet the needs of the user. The phone is charging.

However, every electronic product needs to be charged. If each electronic product needs to be equipped with a mobile power source, it will cause inconvenience to the user. Therefore, a mobile power source that can charge a variety of electronic products came into being, except for smart phones. In addition to tablet charging, there are even mobile power sources that can charge laptops.

Generally speaking, the mobile power supply that can charge a notebook computer on the market is usually large, and in order to charge a notebook computer, a power adapter provided with the notebook computer is usually used, or a mobile power supply is used. Notebook computer power transformer accessories. However, the above methods will cause inconvenience to users. Users may need to bring their own power transformers equipped with notebook computers as standard, or use non-original power transformer accessories. Concerns about damage caused inside the computer. On the market, the mobile power supply provides power to the electronic device as long as it is electrically connected. The electrical device is not certified. If the power characteristics are incompatible (such as different input voltages or withstand voltage) Different) electronic devices may cause damage to the electronic devices, and in severe cases may cause the electronic devices or mobile power sources to explode.

In addition, some mobile power sources on the market that can charge notebook computers use a boost circuit to boost the mobile power through a boost circuit to a voltage that can be used by a notebook computer, usually 19 volts, which will make the notebook The computer determines that the input power is a utility power (that is, a public power supply system, commonly known as utility power), then switches to the utility power supply mode (also known as transformer mode, AC mode, etc.) and operates at a standard operating frequency. The central processing unit (Central Processing Unit, CPU for short) and graphics processing unit (Graphics Processing Unit, GPU) have the highest operating efficiency. However, this method will quickly supply the mobile power stored in the mobile power supply. Exhausted.

When the mobile power supply is exhausted, the mobile power supply can no longer supply mobile power to the notebook computer. When the notebook computer determines that there is no external power input, it switches to the built-in battery power mode (also known as DC mode) , Operating at a power-saving operating frequency that is lower than the standard operating frequency, which is commonly known as "down frequency" or "drop frequency". The purpose is to save power and enable the notebook computer to have a longer time under the built-in battery power mode. Usage time, however, frequency reduction will reduce the operating performance of notebook computers, which is a phenomenon that many users do not want to see, especially those who need high-frequency and high-performance gaming notebook computers.

In view of the fact that in the prior art, the mobile power supply does not authenticate the electronic device, as long as it is electrically connected, the electronic device is powered. If the electronic device is connected incorrectly, it may cause damage to the electronic device, and in serious cases, it may cause the electronic device or Power bank exploded. In addition, the mobile power supply boosts the portable computing device (such as a notebook computer) with a boost method, which will cause the portable computing device to determine that the input voltage is a utility power and switch to a standard operation under the utility power supply mode. Frequency operation, although it can maximize the operating performance of the processors of portable computing devices (such as central processing units and graphics processors), but high operating performance means high power. When the voltage output by the mobile power supply is fixed , It will make the mobile power supply output a larger current, compared to the general operating performance mobile power supply will run out faster.

When no power is available from the mobile power supply, the portable computing device will operate at a power-saving operating frequency that is lower than the standard operating frequency under the built-in battery power mode, which is commonly known as "down frequency" or "drop frequency". The purpose is to save power and enable the portable computing device to have a longer operating time under the built-in battery-powered mode. However, frequency drop will reduce the operating performance of the portable computing device and cause many problems to the users of the portable computing device.

In order to solve the problems of the prior art, one of the necessary technical means adopted by the present invention is to provide a mobile power device for supplying power to a portable computing device provided with a computing device identification code. The mobile power device includes a battery module storing a mobile electric energy, a control module provided with a power supply device identification code, a switching module and a booster circuit. Among them, the portable computing device receives a utility power under a mains (ie, public power system, commonly known as mains) power supply mode, operates at a standard operating frequency, and has a built-in battery (that is, within the portable computing device). (Built-in battery) power supply mode receives a built-in power and operates at a power-saving operating frequency lower than the standard operating frequency.

The control module generates a control signal when the mobile power device is electrically connected to the portable computing device and judges that the computing device identification code is a boosted power supply code. When the switching module receives the control signal, the battery module is switched on to switch the mobile electrical energy to the boost circuit. After the boost circuit receives the mobile power and boosts the mobile power into a boost power, the boost circuit supplies the boost power to the portable computing device, so that the portable computing device receives the boost power and reads it. After the power supply device identification code is reached, it operates at a mobile operating frequency. The mobile operating frequency is between the standard operating frequency and the power-saving operating frequency.

Based on the above-mentioned necessary technical means, one of the subsidiary technical means derived from the above-mentioned mobile power device is that the mobile power device further includes a charging circuit. When receiving charging power from an external power supply, the charging power is transmitted to the battery module, and the charging power is converted into mobile power by the battery module and stored.

Based on the above-mentioned necessary technical means, one of the subsidiary technical means derived from the foregoing mobile power device is that the mobile power device further includes a battery capacity detection display module. The battery capacity detection and display module is electrically connected to the battery module, and is used to detect and display the power of mobile power.

Based on the above-mentioned necessary technical means, one of the subsidiary technical means derived from the above-mentioned mobile power device is that the mobile power device further includes a step-down circuit. The step-down circuit is electrically connected to the battery module, and steps down the mobile power into a step-down voltage and supplies it to a mobile electronic device.

Based on the above-mentioned necessary technical means, one of the subsidiary technical means derived from the aforementioned mobile power device is that the control module is a microcontroller (Microcontroller Unit, MCU for short).

In order to solve the problems of the prior art, the present invention provides another method for supplying power to a mobile power device by using another necessary technical means. The power supply method for a mobile power device uses the above mobile power device to power a portable computing device, and includes steps (a) to (e). Step (a) when the mobile power device is electrically connected to the portable computing device, when the control module judges that the computing device identification code is a boost power supply code, the control module generates a control signal. Step (b) transmits the control signal to the switching module. In step (c), when the switching module receives the control signal, the switching module is configured to switch on the battery module to transfer the mobile electrical energy to the boost circuit. Step (d) boosts the mobile electrical energy into boosted electrical energy using a booster circuit, and supplies the boosted electrical energy to the portable computing device. Step (e) When the portable computing device receives the boosted power and reads the power supply device identification code, the portable computing device is caused to operate at the mobile operating frequency in the mobile power mode.

Based on the above-mentioned necessary technical means, one of the subsidiary technical means derived from the power supply method of the mobile power device is that in step (a), the mobile power device is electrically connected to the portable computing device through a power line and a transmission line. When the control module detects that the transmission line is electrically connected to the mobile power device and the portable computing device, it reads the computing device identification code.

Based on the above-mentioned necessary technical means, one of the subsidiary technical means derived from the power supply method of the mobile power device is that in step (d), the booster circuit supplies the boosted power to the portable computing device through the power line.

Based on the above-mentioned necessary technical means, one of the subsidiary technical means derived from the power supply method of the mobile power device is that in step (e), the portable computing device receives the boosted power and detects that the transmission line is electrically connected to the mobile power source. Device and portable computing device, the power supply device identification code is read.

As mentioned above, in the mobile power device and the power supply method thereof provided by the present invention, the mobile power device is electrically connected to the portable computing device, and the control module generates a control when it judges that the computing device identification code is a boosted power supply code. The signal is used to control the switching module to switch on the battery module to transfer the mobile electrical energy to the boost circuit. The boosting circuit boosts the mobile power into a boosted power and transmits it to the portable computing device, so that the battery module supplies power to the portable computing device in a mobile power mode. When the portable computing device receives the boosted power and reads the power supply device identification code, it operates at a mobile operating frequency.

Compared with the prior art, since the mobile power device and the power supply method thereof provided by the present invention generate a control signal to control the switching module when the control module judges that the operation device identification code is a boost power supply code, The battery module is turned on, so that the battery module can supply power to the portable computing device. It can be known from the above description that the mobile power supply device and the power supply method thereof provided by the present invention can not only prevent the mobile power supply device from supplying power without any limitation, but also avoid electronic devices that are not suitable for boosting power. When plugged into a mobile power device by mistake, the electronic power device or mobile power device is damaged because the mobile power device supplies incompatible power to the electronic device.

In addition, after receiving the boosted power and judging the power supply device identification code, the portable computing device operates at a mobile operating frequency between the standard operating frequency and the power-saving operating frequency. Although the mobile operating frequency is lower than the standard operating frequency, it has little effect on the operation of the portable computing device, and it can also extend the power supply time of the portable computing device to the portable computing device.

1‧‧‧ mobile power device

11‧‧‧ Battery Module

12‧‧‧Control Module

13‧‧‧Switch Module

14‧‧‧Boost circuit

15‧‧‧Charging circuit

16‧‧‧ Battery capacity detection display module

17‧‧‧Buck circuit

2‧‧‧ Portable Computing Device

21‧‧‧Embedded Controller

22‧‧‧Central Processing Unit

23‧‧‧Graphics Processor

24‧‧‧Power Distribution Unit

3‧‧‧ mobile electronic device

4‧‧‧Power cord

5‧‧‧ transmission line

The first figure is a block diagram showing a mobile power device provided by a preferred embodiment of the present invention; the second figure is a schematic perspective view of a mobile power device provided by a preferred embodiment of the present invention; and the third figure is a schematic view showing the present invention A flowchart of a mobile power supply device and a power supply method provided by the preferred embodiment.

The specific embodiments of the present invention will be described in more detail below with reference to the schematic diagrams. The advantages and features of the invention will become clearer from the following description and the scope of the patent application. It should be noted that the drawings are all in a very simplified form and all use inaccurate proportions, which are only used to facilitate and clearly explain the purpose of the embodiments of the present invention.

Please refer to the first diagram and the second diagram, wherein the first diagram is a block diagram showing a mobile power device provided by a preferred embodiment of the present invention; the second diagram is a diagram illustrating a mobile power device provided by a preferred embodiment of the present invention The three-dimensional schematic. A mobile power device 1 includes a battery module 11, a control module 12 that stores an identification code of a power supply device of the mobile power device 1, a switching module 13, and a booster circuit 14.

The mobile power device 1 is used to supply power to a portable computing device 2 having a computing device identification code. The portable computing device 2 receives a utility power under a utility power supply mode and operates at a standard operating frequency. It also receives a built-in power under a built-in battery power mode and operates at a power-saving working frequency lower than the standard working frequency.

In this embodiment, the portable computing device 2 is a pen-type computer, but it is not limited to this. The notebook computer only indicates an Embedded Controller (hereinafter referred to as EC) 21, a Central Processing Unit (hereinafter referred to as CPU) 22, and a Graphics Processing Unit (hereinafter referred to as EC) : GPU) 23 and a power distribution unit 24. The other components are relatively unrelated to this embodiment, so they will not be repeated here.

In this embodiment, the standard operating frequency and the power-saving operating frequency are average values of the operating frequency of the CPU 22 and the operating frequency of the GPU 23. Among them, in the standard operating frequency, the operating frequency of the CPU 22 is the first CPU operating frequency, and the operating frequency of the GPU 23 is the first GPU operating frequency. In the power-saving operating frequency, the operating frequency of the CPU 22 is lower than the first CPU operating frequency. And a working frequency of the second CPU, and the working frequency of the GPU 23 is a working frequency of the second GPU which is lower than the working frequency of the first GPU.

The battery module 11 stores a mobile electric energy and is electrically connected to the switching module 13. The control module 12 is an electrical connection switching module 13 for generating a control when the mobile power device 1 is electrically connected to the portable computing device 2 and judges that the computing device identification code is a boost power supply code. signal. The control signal is transmitted to the switching module 13, so that the switching module 13 turns on the battery module 11 in a switched manner, and the mobile electrical energy is transmitted to the booster circuit 14. In order to prevent the mobile power device 1 from supplying power immediately when it is electrically connected to the electronic device, it can also protect the electronic device from being misinterpreted by the mobile power device 1 if it is not suitable for boosting power but is incorrectly plugged into the mobile power device 1 The power supply causes damage to the electronic device or the mobile power device 1.

After the booster circuit 14 receives the mobile power, it boosts the mobile power into a boosted power, and supplies the boosted power to the power distribution unit 24 of the portable computing device 2. The power distribution unit 24 then transmits the boosted power to various modules and units inside the portable computing device 2. The power distribution unit 24 may be a power supply, but is not limited thereto.

When the portable computing device 2 receives the boosted power and reads a power supply device identification code stored in the control module 12, the EC21 sends a central processor control signal and a graphics processor control signal to the CPU22 and GPU23, respectively. , So that the portable computing device 2 enters a mobile power mode and operates at a mobile operating frequency. Under the mobile operating frequency, the operating frequency of the CPU 22 is the first CPU operating frequency, and the operating frequency of the GPU 23 is a third GPU operating frequency. The third GPU operating frequency is intermediate between the first GPU operating frequency and the second GPU operating frequency, so that the mobile operating frequency is intermediate between the standard operating frequency and the power-saving operating frequency.

In this embodiment, the mobile power device 1 is electrically connected to the portable computing device 2 through a power line 4 and a transmission line 5. The booster circuit 14 supplies boosted power to the power distribution unit 24 through the power supply line 4, but is not limited thereto. The booster circuit 14 may also supply boosted power to the power distribution unit 24 by wireless power supply. .

The control module 12 reads the identification code of the computing device through the transmission line 5, and the EC21 also reads the identification code of the power supply device through the transmission line 5, but it is not limited to this, and it can also use wireless transmission, Bluetooth, near field communication (Near-field communication (NFC), Radio Frequency Identification (RFID), etc. are used as the reading method between the control module 12 and the EC21.

In this embodiment, the mobile power device 1 further includes a charging circuit 15, a battery capacity detection display module 16 and a step-down circuit 17.

The charging circuit 15 is electrically connected to the battery module 11 and is configured to transmit the charging energy to the battery module 11 when receiving a charging energy from an external power source, and the battery module 11 receives the charging energy and then charges the charging energy. Converted into mobile electrical energy and stored. The battery capacity detection and display module 16 is also electrically connected to the battery module 11 for detecting and displaying the power of the mobile power. In this implementation, the battery capacity detection and display module 16 is a light-emitting diode (LED), but it is not limited thereto.

In addition, the step-down circuit 17 is also electrically connected to the battery module 11 to receive the mobile electric energy transmitted from the battery module 11 and step down the mobile electric energy to a step-down voltage to supply to a mobile electronic device 3 to make the mobile The power supply device 1 can supply power to the portable computing device 2 and the mobile electronic device 3 at the same time. The mobile electronic device 3 may be a smart phone or a tablet computer, but is not limited thereto.

Please refer to the first diagram and the third diagram together. The third diagram is a flowchart illustrating a mobile power device and a power supply method thereof provided by a preferred embodiment of the present invention. As shown in the figure, a preferred embodiment of the present invention provides a power supply method for a mobile power device.

First, when the mobile power device 1 is electrically connected to the portable computing device 2, when the control module 12 determines that the computing device identification code is a boost power supply code, the control module 12 will generate a control signal (that is, step S101). .

In this embodiment, the mobile power device 1 is electrically connected to the portable computing device 2 through a power line 4 and a transmission line 5, but it is not limited thereto. When the control module 12 detects that the transmission line 5 is electrically connected to the mobile power device 1 and the portable computing device 2, it reads the computing device identification code.

Then, the control module 12 transmits a control signal to the switching module 13 (that is, step S102). When the switching module 13 receives the control signal, it switches on the battery module 11 to transfer the mobile power to the boost circuit 14 (ie, step S103). Among them, when the control module 12 judges that the operation device identification code is not a boosted power supply code, a control signal is not generated to cause the switching module 13 to turn on the battery module 11, which can prevent the mobile power supply device 1 from supplying power without restriction. It is possible to protect the electronic device that is accidentally plugged into the mobile power device 1.

Next, the boosting circuit 14 boosts the mobile power into boosted power, and supplies the boosted power to the portable computing device 2 (step 104). In this embodiment, the booster circuit 14 supplies the boosted power to the power distribution unit 24 of the portable computing device 2 through the power supply line 4, but it is not limited thereto, and the booster circuit may be powered by wireless power supply. The piezoelectric energy is supplied to the power distribution unit 24 of the portable computing device 2.

Finally, when the portable computing device 2 receives the boosted power and the EC21 reads the power supply device identification code, it sends a central processor control signal and a graphics processor control signal to the CPU22 and GPU23 respectively, so that the CPU22 and The GPU 23 switches to the first CPU operating frequency and the third GPU operating frequency, respectively. Therefore, the portable computing device 2 enters the mobile power mode and operates at the mobile operating frequency (ie, step S105). Although the mobile operating frequency is lower than the standard operating frequency, it means that the operating performance of the portable computing device 2 operating at the mobile operating frequency will be lower than the operating performance of operating at the standard operating frequency, but the impact of this performance difference on the portable computing device 2 Very small. The portable computing device 2 is switched to the mobile power supply mode and operates at a mobile operating frequency, which can extend the power supply time of the mobile power device 1 to the portable computing device 2.

In this embodiment, the control module 12 reads the identification code of the computing device through the transmission line 5, and the EC21 also reads the identification code of the power supply device through the transmission line 5, but it is not limited to this, and wireless transmission and Bluetooth can also be used. Methods such as Near-field communication (NFC) and Radio Frequency Identification (RFID) are used as a way for the control module 12 and EC21 to read the identification code.

In summary, in the mobile power device and the power supply method thereof provided by the preferred embodiments of the present invention, the mobile power device is electrically connected to the portable computing device to supply power to the portable computing device.

When the control module judges that the operation device identification code is a boosted power supply code, it generates and transmits a control signal to the switching module, so as to control the switching module to switch on the battery module and transfer mobile power to the boosting circuit. After the booster circuit receives the mobile power, it boosts the mobile power into a boosted power and supplies it to the portable computing device.

Compared with the prior art, due to the mobile power device and the power supply method thereof provided by the preferred embodiments of the present invention, the control module first determines whether the identification code of the computing device is a boost power supply code, and is generated only if the reading result is yes. The control signal is transmitted to the switching module, and the switching module is switched on to the battery module to supply power to the portable computing device. The above method can prevent the mobile power supply device from supplying power indefinitely, and can also prevent the electronic device or the mobile power supply device from being damaged due to the unidentified power supply of the mobile power device when the electronic device is electrically connected to the mobile power device by mistake.

In addition, after the EC reads the power supply device identification code, the portable computing device is switched to the mobile power mode and operates at the mobile operating frequency. The operating performance of the portable computing device at the mobile operating frequency will be lower than that at the standard operating frequency. Operating efficiency. However, this performance difference has little effect, but it can extend the power supply time of the mobile power device to the portable computing device, so that the portable computing device can maintain the operation close to the standard operating frequency for a long time without the mains power supply. efficacy.

With the above detailed description of the preferred embodiments, it is hoped that the features and spirit of the present invention can be more clearly described, and the scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various changes and equivalent arrangements within the scope of the patents to be applied for in the present invention.

Claims (9)

    A mobile power device is used to supply power to a portable computing device. The portable computing device is provided with a computing device identification code, receives a commercial power in a utility power supply mode, and operates at a standard operating frequency. Receiving a built-in electric power under a built-in battery power mode and operating at a power-saving operating frequency lower than the standard operating frequency, the mobile power device includes: a battery module storing a mobile electric energy; a control module Is a power supply device identification code stored in the mobile power device, and is used to generate when the mobile power device is electrically connected to the portable computing device and judges that the computing device identification code is a boost power supply code. A control signal; a switching module is electrically connected to the battery module and the control module, and when the control signal is received, the battery module is switched on to switch the mobile electric energy out, so that the The battery module supplies power to the portable computing device in a mobile power mode; and a booster circuit is electrically connected to the switching module, receives the mobile power and sends the mobile power After the dynamic electric energy is boosted into a boosted electric energy, the boosted electric energy is supplied to the portable computing device, so that the portable computing device receives the boosted electric energy and reads the power supply device identification code Operate at a mobile operating frequency; the mobile operating frequency is between the standard operating frequency and the power-saving operating frequency.         The mobile power device described in item 1 of the scope of patent application, further includes a charging circuit for transmitting the charging power to the battery module when receiving a charging power from an external power supply, and by The battery module converts the charging electric energy into the mobile electric energy and stores the electric energy.         The mobile power supply device described in item 2 of the scope of patent application, further includes a battery capacity detection display module, which is electrically connected to the battery module for detecting and displaying the power of the mobile power.         The mobile power supply device described in item 1 of the scope of patent application, further includes a step-down circuit, which is electrically connected to the battery module, steps down the mobile power into a step-down voltage, and supplies the step-down voltage to A mobile electronic device.         The mobile power device according to item 1 of the patent application scope, wherein the control module is a microcontroller (Microcontroller Unit, MCU for short).         A method for powering a mobile power device, which uses the mobile power device described in item 1 of the scope of patent application to power the portable computing device, and includes the following steps: (a) electrically connecting the mobile power device to the portable power device; When the portable computing device is used, when the control module judges that the computing device identification code is the boost power supply code, the control module generates the control signal; (b) transmits the control signal to the switching module; (c) when the switching module receives the control signal, make the switching module switch on the battery module to transfer the mobile electric energy to the boost circuit; (d) use the boost circuit to Boosting the mobile power into the boosted power and supplying the boosted power to the portable computing device; and (e) when the portable computing device receives the boosted power and reads the power supply The device identification code causes the portable computing device to operate at the mobile operating frequency in the mobile power mode.         The power supply method for a mobile power device as described in item 6 of the scope of patent application, wherein in step (a), the mobile power device is electrically connected to the portable computing device through a power line and a transmission line, and when When the control module detects that the transmission line is electrically connected to the mobile power device and the portable computing device, it reads out the computing device identification code.         The power supply method for a mobile power device according to item 7 of the scope of patent application, wherein in step (d), the booster circuit supplies the boosted power to the portable computing device through the power line.         The method for powering a mobile power device according to item 8 of the scope of patent application, wherein, in step (e), when the portable computing device receives the boosted power and detects that the transmission line is electrically connected to the mobile power When the device and the portable computing device, the identification code of the power supply device is read.