TWM601482U - Electronic system and hybrid power supply device - Google Patents

Abstract

An electronic system is provided. The electronic system includes an electronic device and a hybrid power supply device. The hybrid power supply device provides a first output power to the electronic device through a cable. According to a control signal from the electronic device, the hybrid power supply device selectively provides a second output power to the electronic device through the cable. The control signal indicates whether the first output power pumped by the electronic device exceeds a threshold value.

Description

Electronic system and hybrid power supply device

The present invention relates to an electronic system, and particularly relates to an electronic system with a hybrid power supply device.

Nowadays, portable electronic devices are usually powered by rechargeable batteries or powered by power supplies. Generally speaking, the power supply has a power plug for connecting to an AC socket, and converts the AC power to the DC power to the electronic device for power supply.

Among various electronic devices, as the performance requirements of the central processing unit (CPU) and the graphics processing unit (GPU) become higher, the electronic devices need to use more power supplies to execute these applications. When the wattage of the power supply is higher, the electronic device is prone to heat accumulation or excessive overload, thereby reducing performance.

This new creation provides an electronic system. The above electronic system includes an electronic device and a hybrid power supply device. The hybrid power supply device provides a first output power to the electronic device via a connecting wire. According to a control signal from the electronic device, the hybrid power supply device selectively provides a second output power to the electronic device via the connection line. The control signal indicates whether the first output power drawn by the electronic device exceeds a critical value.

Furthermore, the present invention provides a hybrid power supply device. The above-mentioned hybrid power supply device includes a battery, a power supply unit and a battery management unit. The power supply unit is used for generating a first output power to an output terminal according to an input power. The battery management unit controls the battery to selectively operate in a charging mode or a discharging mode according to a control signal. In the charging mode, the battery management unit uses the first output power source to charge the battery. In the discharging mode, the battery management unit provides a second output power provided by the battery to the output terminal.

In order to make the above-mentioned and other purposes, features, and advantages of the creation of the new model more obvious and understandable, the following specifically enumerates the preferred embodiments, combined with the accompanying drawings, and the detailed description is as follows:

Figure 1 shows an electronic system 100 according to some embodiments of the invention. The electronic system 100 includes an electronic device 110, a hybrid power supply device 130 and a connection line 120. The connector 111 of the electronic device 110 is a power supply interface and is connected to the connector (not shown) of the connecting line 120. The electronic device 110 can be coupled to the output terminal 131 of the hybrid power supply device 130 through the connection line 120, and the hybrid power supply device 130 charges the electronic device 110 through the connection line 120. In some embodiments, the electronic device 110 may be a portable electronic device, such as a notebook computer, a mobile phone, a portable media player, a personal digital assistant (PDA), etc. In some embodiments, the electronic device 110 may be a stationary electronic device, such as a desktop computer, a home appliance, and so on. The hybrid power supply device 130 may be an adapter for converting the mains power (for example, alternating current) into the charging power (for example, direct current) required by the electronic device 110. In addition, the connection line 120 may be a power cord or a universal serial bus (USB) transmission line. Furthermore, the connector 111 of the electronic device 110 may be a power connector or a standard interface of a universal serial bus specification.

In the electronic system 100, the electronic device 110 includes a battery 112 and a controller 114. The battery 112 is a rechargeable battery. The battery 112 may include one or more battery cells. The controller 114 can control various operations of the electronic device 110. In some embodiments, the controller 114 may be a processor of the electronic device 110, such as a CPU. In some embodiments, corresponding to the charging power from the hybrid power supply device 130, that is, the charging power received by the connector 111, the controller 114 may control the charging circuit (not shown) of the electronic device 110 to use the received charging power. The battery 112 is charged. It should be understood that the electronic device 110 also includes other devices, circuits, and different objects, and the electronic device 110 is only an example, and is not intended to limit the creation of the present invention.

In the electronic system 100, the hybrid power supply device 130 includes a power supply unit (PSU) 132, a battery management unit (Battery Management Unit, BMU) 134 and a battery 136. The power supply unit 132 generates the first output power PW1 to the output terminal 131 according to the input power PWin, so as to supply power to the electronic device 110 through the connection line 120. The voltage or current of the first output power PW1 can be determined according to actual applications (for example, the corresponding specifications of the electronic device 110). In some embodiments, the input power PWin is an alternating current signal, and the first output power PW1 is a direct current signal. In addition, the power supply unit 132 has a voltage or current converter (not shown) to convert the input power PWin into the first output power PW1. The battery 136 may include one or more rechargeable battery cells. The battery management unit 134 has a battery gauge (eg, gas gauge) for measuring the power of the battery 136. In addition, according to the control signal Ctrl from the electronic device 110, the battery management unit 134 can control the battery 136 to operate in the charging mode or the discharging mode. In the charging mode, the battery management unit 134 uses the first output power PW1 from the power supply unit 132 to charge the battery 136. On the contrary, in the discharging mode, the battery management unit 134 provides the second output power PW2 generated by the battery 136 to the output terminal 131 so as to supply power to the electronic device 110 through the connection line 120. In other words, in the discharge mode, the hybrid power supply device 130 will simultaneously provide the first output power PW1 and the second output power PW2 to the electronic device 110. Therefore, when the electronic device 110 needs a larger power source, the hybrid power supply device 130 can additionally provide the second output power PW2 to the electronic device 110.

Fig. 2 shows the power supply method of the electronic system 100 in Fig. 1 according to some embodiments of the present invention. First, in step S210, when the electronic device 110 is connected to the hybrid power supply device 130 via the connection line 120, the hybrid power supply device 130 provides the first output power PW1 generated by the power supply unit 132 to the electronic device 110.

In step S220, the battery management unit 134 of the hybrid power supply device 130 determines whether the Relative State-Of-Charge (RSOC) of the battery 136 is less than 20% (for example, the first specific capacity), that is, determines whether the battery 136 Is the battery power sufficient? The relative battery capacity state indicates the charging ratio of the battery, for example, when the battery is fully charged, it is 100% and when the battery is fully discharged, it is 0%. In addition, the value of the first specific capacity can be determined according to actual applications. When the relative battery capacity state of the battery 136 is less than 20%, the battery management unit 134 controls the battery 136 to enter the charging mode (step S250), and uses the first output power PW1 to charge the battery 136. In some embodiments, when the battery 136 is operating in the charging mode, if the battery management unit 134 detects that the relative battery capacity state of the battery 136 reaches 100% or the second specific capacity, the battery management unit 134 will control the battery 136 from The charging mode is switched to the idle mode. For the relative battery capacity state of the battery 136, the second specific capacity is greater than the first specific capacity.

In step S220, when the relative battery capacity state of the battery 136 is greater than or equal to 20%, the battery management unit 134 will determine whether the first output power PW1 pumped by the electronic device 110 exceeds the control signal Ctrl from the electronic device 110 85% (step S230). In this embodiment, 85% is an exemplary threshold value, which is used to represent the limit condition of the electronic system 100 that can be pumped. For example, suppose that the first output power source PW1 can provide a power source with a power of 200W. When the power drawn by the first output power PW1 by the electronic device 110 does not exceed 170W (ie 85%), the controller 114 of the electronic device 110 transmits the control signal Ctrl to the hybrid power supply device 130 through the connection line 120, so that Notify the battery management unit 134. In some embodiments, the electronic device 110 is set to only draw 90% of the rated power of the first output power PW1. In some embodiments, the connecting line 120 has a communication pin for transmitting the control signal Ctrl. Corresponding to the control signal Ctrl from the electronic device 110, when the first output power PW1 pumped by the electronic device 110 does not exceed 170W (ie 85%), the battery management unit 134 controls the battery 136 to remain in the idle mode, and then the method returns Go to step S210, and continue to determine whether the power of the battery 136 is sufficient (step S220). Conversely, when the first output power PW1 pumped by the electronic device 110 exceeds 170W (ie 85%), the controller 114 of the electronic device 110 will transmit the control signal Ctrl to the hybrid power supply device 130 through the connection line 120 for Notify the battery management unit 134. Then, corresponding to the control signal Ctrl from the electronic device 110, the battery management unit 134 controls the battery 136 to enter the discharge mode (step S240), so as to additionally use the second output power PW2 provided by the battery 136 to power the electronic device 110. Therefore, in step S240, the hybrid power supply device 130 simultaneously provides the first output power PW1 and the second output power PW2 to power the electronic device 110.

In some embodiments, when the battery 136 is operating in the discharge mode, if the current pumping load of the electronic device 110 does not exceed 85%, the controller 114 of the electronic device 110 transmits the control signal Ctrl to the hybrid power supply device 130. In order to notify the battery management unit 134. In response to the control signal Ctrl, the battery management unit 134 controls the battery 136 to leave the discharge mode (for example, enter the idle mode from the discharge mode), and then return to step S210. In some embodiments, when the battery 136 is operating in the discharge mode, when the battery management unit 134 detects that the relative battery capacity state of the battery 136 is less than 20%, the battery management unit 134 controls the battery 136 to enter the charging mode from the discharge mode , And then return to step S210.

FIG. 3A is a power waveform diagram when the conventional power supply device supplies power to the electronic device 110. In Figure 3A, the conventional power supply device only includes a power supply unit (for example, the power supply unit 132 in Figure 1). In the initial state, the electronic device 110 has just been turned on and the load is not large, so the conventional power supply device does not draw much power. Then, the electronic device 110 starts some programs or operations, for example, during the time period 310, so that the power consumption increases, that is, the power drawn becomes larger. As time increases, the electronic device 110 will begin to accumulate heat. In order to prevent the electronic device 110 from being too hot and causing an instant shutdown, the electronic device 110 will reduce the load (for example, stop part of the program or operation being executed) or reduce the operating frequency, so as to reduce power consumption and reduce the power drawn. As a result, the drawn power will instantly decrease from the highest point to a relatively low point, as indicated by reference number 315. The overall operation of the electronic device 110 will be deteriorated due to the reduction of the executed program or operation or the operation frequency.

FIG. 3B shows a power waveform diagram when the hybrid power supply device 130 supplies power to the electronic device 110 in the electronic system 100 in FIG. 1 according to some embodiments of the present invention. In the electronic system 100, in order to avoid the occurrence of load or instantaneous decrease in frequency, the hybrid power supply device 130 further controls the battery management unit 134 to use the battery 136 to provide the additional second output power PW2. Therefore, when the operation in the electronic device 110 increases and the power required for operation also increases, the battery 136 in the hybrid power supply device 130 can provide additional power compared to traditional power supply devices (for example, only having a power supply unit). The second output power PW2 of PW2 supplies power to the electronic device 110. By using the hybrid power supply device 130, the power drawn by the electronic device 110 will not drop from the highest point to a relatively low point instantaneously. In Figure 3B, the power drawn by the electronic device 110 is slowly decreasing (as shown by reference number 325), that is, slowly reducing the load or reducing the operating frequency. Therefore, the electronic system 100 does not stop the program or operation being executed, so it has better performance. By using the hybrid power supply device 130, the operation of the electronic system 100 can be made more stable, and the electronic device 110 of the electronic system 100 will not fail to operate normally due to heat accumulation or excessive pumping.

FIG. 4 is a structural diagram of the hybrid power supply device 130 according to some embodiments of the invention. The casing of the hybrid power supply device 130 surrounds the power supply unit 132, the battery management unit 134 and the battery 136. The battery management unit 134 and the battery 136 are arranged above the power supply unit 132. The connecting wire 120 is fixed to the output terminal 131 of the hybrid power supply device 130. The battery management unit 134 and the power supply unit 132 are adjacent to the output terminal 131 of the hybrid power supply device 130. As described previously, the battery management unit 134 can control the charging and discharging of the battery 136. In the charging mode, the battery management unit 134 can use the power source from the power supply unit 132 (for example, the first output power source PW1) to charge the battery 136. In the discharging mode, the battery management unit 134 can provide the power (for example, the second output power PW2) generated by the battery 136 to the connection line 120.

Although this new creation has been created with the preferred embodiment as above, it is not intended to limit this creation. Anyone who belongs to the technical field including ordinary knowledge can make some changes and changes without departing from the spirit and scope of this creation. Retouching, therefore, the protection scope of this creation shall be subject to the scope of the attached patent application.

100: electronic system 110: electronic device 111: Connector 112,136: battery 114: Controller 120: connection line 130: Hybrid power supply device 131: output 132: power supply unit 134: Battery Management Unit Ctrl: control signal PW1: First output power PW2: second output power PWin: Input power S210-S250: steps

Figure 1 shows an electronic system according to some embodiments of the invention. Figure 2 shows the power supply method of the electronic system in Figure 1 according to some embodiments of the invention. Figure 3A is a diagram showing the power waveform when the conventional power supply device supplies power to the electronic device. FIG. 3B is a diagram showing the power waveform when the hybrid power supply device powers the electronic device in the electronic system of FIG. 1 according to some embodiments of the invention. Figure 4 is a structural diagram of a hybrid power supply device according to some embodiments of the invention.

100: electronic system

110: electronic device

111: Connector

112,136: battery

114: Controller

120: connection line

130: Hybrid power supply device

131: output

132: power supply unit

134: Battery Management Unit

Ctrl: control signal

PW1: First output power

PW2: second output power

PWin: Input power

Claims (10)

An electronic system including: An electronic device; and A hybrid power supply device that provides a first output power to the above-mentioned electronic device via a connection line, According to a control signal from the electronic device, the hybrid power supply device selectively provides a second output power to the electronic device via the connection line, The control signal indicates whether the first output power source pumped by the electronic device exceeds a critical value. The electronic system according to claim 1, wherein when the control signal indicates that the first output power drawn by the electronic device exceeds the threshold, the hybrid power supply device provides the second output power to the electronic device Device. The electronic system of claim 1, wherein when the control signal indicates that the first output power drawn by the electronic device does not exceed the threshold, the hybrid power supply device does not provide the second output power to The above electronic device. The electronic system according to claim 1, wherein the above-mentioned hybrid power supply device includes: A battery is used to provide the second output power. The electronic system according to claim 4, wherein the hybrid power supply device further includes: A battery management unit for detecting the power of the battery, When the battery management unit detects that the power of the battery is less than a specific relative battery capacity state, the hybrid power supply device does not provide the second output power to the electronic device, and the battery management unit uses the first output The power supply charges the above-mentioned battery. The electronic system according to claim 1, wherein the connecting wire has a communication pin, and the control signal is transmitted from the electronic device to the hybrid power supply device via the communication pin of the connecting wire. A hybrid power supply device includes: A battery; A power supply unit for generating a first output power to an output terminal according to an input power; and A battery management unit controls the battery to selectively operate in a charging mode or a discharging mode according to a control signal, Wherein in the charging mode, the battery management unit uses the first output power source to charge the battery, In the discharge mode, the battery management unit provides a second output power provided by the battery to the output terminal. The hybrid power supply device according to claim 7, wherein the control signal is provided by an electronic device coupled to the output terminal, and the first output power source and the second output power source are used to control the electronic device Charge it. The hybrid power supply device according to claim 8, wherein when the control signal indicates that the first output power drawn by the electronic device does not exceed a specific value, the battery management unit controls the battery to operate in the charging Mode to charge the battery using the first output power source. The hybrid power supply device according to claim 8, wherein when the control signal indicates that the first output power drawn by the electronic device exceeds a specific value, the battery management unit controls the battery cell to operate in the discharge Mode to charge the battery using the first output power source and the second output power source.

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