Power supply circuit, power supply method for components in electronic equipment and electronic equipment

Abstract

The invention provides a power supply circuit, a power supply method of components in electronic equipment and the electronic equipment, and relates to the technical field of communication. The controller firstly determines the current output voltage of the power supply end, then determines the target power supply branch to be used according to the relation between the output voltage and the voltage threshold value, and finally controls the power supply end to supply power to the assembly through the target power supply branch. Therefore, the influence of low voltage on the working performance of the component is effectively reduced, the reliability of the power supply method of the component in the electronic equipment is improved, and the user experience is improved.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a power supply circuit, a power supply method for components in electronic devices, and an electronic device. Background Technology

[0002] With the continuous evolution of wireless communication technology, people's demand for mobile terminals such as smartphones is constantly increasing, and the requirements for the battery life of mobile terminals are constantly rising. However, the performance of various functional modules of mobile terminals will be affected in low-voltage battery life scenarios. How to improve the performance of the functional modules of mobile terminals in low-voltage battery life scenarios is an urgent problem to be solved. Summary of the Invention

[0003] This disclosure aims to at least partially address one of the technical problems in the related art.

[0004] The first aspect of this disclosure provides a power supply circuit, which includes: a power supply, a voltage detection circuit, a first power supply branch, a second power supply branch, and a controller;

[0005] The output terminal of the power supply is connected to the input terminals of the voltage detection circuit, the first power supply branch, and the second power supply branch, respectively.

[0006] The output terminal of the voltage detection circuit is connected to the first input terminal of the controller;

[0007] The first output terminal of the controller is connected to the control terminal of the first power supply branch, and the second output terminal of the controller is connected to the control terminal of the second power supply branch;

[0008] The controller is used to control the operating status of the first power supply branch and the second power supply branch according to the relationship between the voltage output by the voltage detection circuit and the voltage threshold.

[0009] A second aspect of this disclosure provides a method for supplying power to a component in an electronic device, the electronic device including a power supply circuit as described in a first aspect of this disclosure, the method comprising:

[0010] Determine the current output voltage at the power supply terminal;

[0011] Based on the relationship between the output voltage and the voltage threshold, the target power supply branch to be used is determined;

[0012] Control the power supply terminal to supply power to the component through the target power supply branch.

[0013] A third aspect of this disclosure provides an electronic device including a power supply circuit as described in a first aspect of this disclosure.

[0014] A fourth aspect of this disclosure provides a power supply device for a component in an electronic device, characterized in that the electronic device includes a power supply circuit as described in a first aspect of this disclosure, the device comprising:

[0015] The first determining module is used to determine the current output voltage of the power supply terminal;

[0016] The second determining module is used to determine the target power supply branch to be used based on the relationship between the output voltage and the voltage threshold.

[0017] A control module is used to control the power supply terminal to supply power to the component through the target power supply branch.

[0018] A fifth aspect of this disclosure provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements a power supply method for components in an electronic device as described in a second aspect of this disclosure.

[0019] The power supply circuit, the power supply method for components in the electronic device, and the electronic device provided in this disclosure have the following beneficial effects:

[0020] In this embodiment, the controller first determines the current output voltage of the power supply terminal, then determines the target power supply branch to be used based on the relationship between the output voltage and a voltage threshold, and finally controls the power supply terminal to supply power to the component through the target power supply branch. Thus, by determining the target power supply branch based on the relationship between the output voltage of the power supply terminal and a voltage threshold, and controlling the power supply terminal to supply power to the component through the target power supply branch, the controller effectively reduces the impact of low voltage on the component's operating performance, improves the reliability of the power supply method for components in electronic devices, and enhances the user experience.

[0021] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0023] Figure 1 This is a schematic diagram of a power supply circuit provided in an embodiment of the present disclosure;

[0024] Figure 2 This is a schematic flowchart illustrating a power supply method for a component in an electronic device according to another embodiment of the present disclosure.

[0025] Figure 3 This is a schematic diagram of adjusting the voltage under the discharge state provided in this disclosure;

[0026] Figure 4 This is a schematic diagram illustrating voltage adjustment during the charging state provided in this disclosure;

[0027] Figure 5 This is a schematic flowchart illustrating a power supply method for a component in an electronic device according to another embodiment of the present disclosure.

[0028] Figure 6 This is a schematic flowchart illustrating a power supply method for a component in an electronic device according to another embodiment of the present disclosure.

[0029] Figure 7 A schematic diagram illustrating the effect of a power supply method for components in an electronic device provided in an embodiment of this disclosure;

[0030] Figure 8 This is a schematic diagram of the structure of a power supply device for a component in an electronic device provided in another embodiment of the present disclosure. Detailed Implementation

[0031] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0032] The following description, with reference to the accompanying drawings, describes a power supply circuit, a power supply method for components in an electronic device, and an electronic device according to embodiments of the present disclosure.

[0033] Figure 1 This is a schematic diagram of a power supply circuit provided in an embodiment of the present disclosure.

[0034] like Figure 1 As shown, the power supply circuit includes: a power supply, a voltage detection circuit, a first power supply branch, a second power supply branch, and a controller;

[0035] The output terminal of the power supply is connected to the voltage detection circuit, the input terminal of the first power supply branch, and the input terminal of the second power supply branch, respectively.

[0036] The output of the voltage detection circuit is connected to the first input of the controller;

[0037] The first output terminal of the controller is connected to the control terminal of the first power supply branch, and the second output terminal of the controller is connected to the control terminal of the second power supply branch.

[0038] The controller is used to control the operating status of the first power supply branch and the second power supply branch based on the relationship between the voltage output by the voltage detection circuit and the voltage threshold.

[0039] It should be noted that the power source in the power supply circuit can be a battery in an electronic device, or a power management integrated circuit (PMIC), etc., and this disclosure does not limit it.

[0040] It should be noted that the type of electronic device can be determined as needed. For example, electronic devices can be mobile phones, tablets, smartwatches, smart bracelets, etc., and this disclosure does not limit them.

[0041] It should be noted that the first power supply branch can operate in a scenario where the power supply output voltage is greater than the voltage threshold, and the output voltage of the first power supply branch is the same as the power supply output voltage; the second power supply branch can operate in a scenario where the power supply output voltage is less than or equal to the voltage threshold, and the second power supply branch can perform voltage boosting processing on the power supply output voltage, which is not limited in this disclosure.

[0042] The voltage threshold can be a critical voltage value used to determine the operating state of the first and second power supply branches. It can be preset or determined according to actual needs. For example, the voltage threshold can be 3.4 volts (V), etc., and this disclosure does not limit it.

[0043] It should be noted that the first power supply branch, the second power supply branch, the controller, and the voltage detection circuit can be integrated into a pre-set chip, and this disclosure does not limit this.

[0044] It should be noted that when the first power supply branch, the second power supply branch, the controller, and the voltage detection circuit are integrated into a preset chip, the output terminal of the power supply can be directly connected to the integrated chip, and this disclosure does not limit this.

[0045] Optionally, the first power supply branch may include a switching assembly connected to the power supply and the electrical load respectively, and the second power supply branch may include a boost circuit connected to the power supply and the electrical load respectively.

[0046] The electrical load can be any load in an electronic device. For example, the electrical load can be a power amplifier for a wireless fidelity (WIFI) network, a screen, a motor, a near-field communication (NFC) device, etc., and this disclosure does not limit it.

[0047] Among them, the boost circuit can be a circuit used to boost the output voltage of the power supply.

[0048] It should be noted that when the boost circuit boosts the output voltage of the power supply, the specific boost level can be determined according to actual needs. For example, when the output voltage of the power supply is lower than the voltage threshold, the boost circuit can boost the output voltage of the power supply to the voltage threshold to provide a stable operating voltage for the electrical load, etc. This disclosure does not limit this.

[0049] Optionally, the controller can be specifically used to: when the voltage input at the first input terminal is greater than a threshold, it can be determined that the output voltage of the power supply can meet the working voltage of the electrical load and has little impact on the performance of the electrical load. In this case, the controller can control the switching component of the first power supply branch to be turned on and control the boost circuit of the second power supply branch to be turned off, so that the power supply directly supplies power to the electrical load; when the voltage input at the first input terminal is less than or equal to the threshold, it can be determined that the output voltage of the power supply is low and may not meet the working voltage of the electrical load, resulting in a reduction in the performance of the electrical load. In order to avoid affecting the user experience, the controller can control the boost circuit in the second power supply branch to be turned on and control the switch in the first power supply branch to be turned off. The boost circuit in the second power supply branch boosts the output voltage of the power supply before supplying power to the electrical load, thereby effectively reducing the impact of low voltage on the performance of the electrical load and improving the user experience. The threshold is the voltage threshold mentioned above.

[0050] Optionally, the controller can also be used to determine a voltage threshold based on an input command received at its second input terminal; this disclosure does not limit this.

[0051] It should be noted that the input commands received at the second input terminal of the controller can be transmitted to the Central Processing Unit (CPU) via its internal integrated circuit (I-IC). 2 C) Input instructions, which are not limited in this disclosure.

[0052] The power supply circuit provided in this disclosure sets up a first power supply branch and a second power supply branch between the power supply and the electrical load. When the output voltage of the power supply is low, in order to maintain the performance of the electrical load and reduce the impact of low voltage on the performance of the electrical load, the controller can first control the boost circuit in the second power supply branch to boost the output voltage of the power supply, and then supply power to the electrical load, thereby maintaining the performance of the electrical load in low voltage scenarios and improving the user experience.

[0053] This disclosure also proposes an electronic device, including the power supply circuit proposed in the above embodiments of this disclosure.

[0054] It should be noted that the specific type of electronic device can be set according to actual needs. For example, electronic devices can be mobile phones, tablets, wearable smart devices, etc., and this disclosure does not limit them.

[0055] It should be noted that electronic devices are typically equipped with a shutdown voltage. When the power supply's output voltage drops to the shutdown voltage, the electronic device will shut down. Therefore, setting a high shutdown voltage will reduce the low-voltage battery life of the electronic device, affecting the user experience. To extend the low-voltage battery life, a lower shutdown voltage can be set. However, in low-voltage battery life scenarios, the performance of the electronic device's electrical load will be affected. This disclosure addresses the above problems by proposing a power supply circuit. The electronic device in this disclosure, by configuring the power supply circuit proposed in the embodiments of this disclosure, can not only set a lower shutdown voltage to extend its low-voltage battery life, but also boost the power supply's output voltage in low-voltage scenarios, providing a relatively stable voltage environment for the electrical load, ensuring the performance of the electrical load in low-voltage scenarios, thereby reducing the impact on the user experience.

[0056] Figure 2 This is a schematic flowchart illustrating a power supply method for a component in an electronic device, provided as another embodiment of the present disclosure.

[0057] like Figure 2 As shown, the power supply method for components in this electronic device may include the following steps, wherein the electronic device includes the power supply circuit proposed in the above embodiments of this disclosure:

[0058] Step 201: Determine the current output voltage at the power supply terminal.

[0059] It should be noted that the power supply terminal can be of any type. For example, the power supply terminal can be a power management integrated circuit (PMIC) or a battery; this disclosure does not limit it in this regard.

[0060] It should be noted that the controller can determine the current output voltage of the power supply terminal through a voltage detection circuit, but this disclosure does not limit this.

[0061] Step 202: Determine the target power supply branch to be used based on the relationship between the output voltage and the voltage threshold.

[0062] In this disclosure, after the controller determines the current output voltage of the power supply terminal, the controller can send the voltage threshold to the voltage detection circuit. After the voltage detection circuit determines the relationship between the current output voltage and the voltage threshold, the target power supply branch to be used is determined by the correlation between the output voltage output by the voltage detection circuit and the voltage threshold, thereby providing conditions for ensuring the performance of the electrical load. This disclosure does not limit this.

[0063] It should be noted that the target power supply branch can be either the first power supply branch or the second power supply branch. For example, when the output voltage is less than or equal to the voltage threshold, the output voltage needs to be boosted. In this case, the determined target power supply branch can be the second power supply branch. When the output voltage is greater than the voltage threshold, the output voltage does not need to be boosted. In this case, the determined target power supply branch can be the first power supply branch. This disclosure does not limit this.

[0064] Step 203: Control the power supply terminal to supply power to the component through the target power supply branch.

[0065] The components can be electrical loads in electronic devices. For example, they can be power amplifiers for Wi-Fi, screens of electronic devices, motors, NFC, etc., and this disclosure does not limit them.

[0066] In this disclosure, after determining the target power supply branch to be used, the controller can control the power supply terminal to supply power to the module through the target power supply branch, thereby reducing the impact of low voltage on the module's operating performance and improving the user experience.

[0067] Optionally, when the first power supply branch is in a conducting state and the target power supply branch is the second power supply branch, the controller can control the second power supply branch to be turned on and then control the first power supply branch to be turned off. After that, the power supply end can be controlled to supply power to the component through the second power supply branch, thereby improving the working performance of the component in low-voltage scenarios and improving the user experience.

[0068] In this disclosure, during the use of the electronic device, when the output voltage of the power supply terminal is greater than a voltage threshold, the controller will control the first power supply branch to be in a conducting state. As the power is consumed, the output voltage of the power supply terminal of the electronic device also decreases. When the output voltage of the power supply terminal is less than or equal to the voltage threshold, in order to maintain the working performance of the component, the controller will control the second power supply branch to be in a conducting state and control the first power supply branch to be disconnected. For example, with Figure 3 For example, Figure 3 This is a schematic diagram of adjusting the voltage under the discharge state provided in this disclosure, as shown below. Figure 3 As shown, in the discharge state, as the charge decreases, the output voltage of the power supply also decreases. Before the output voltage of the power supply drops to the voltage threshold, the controller controls the first power supply branch to be turned on and controls the second power supply branch to be turned off. The input voltage of the component is the output voltage of the power supply. After the output voltage of the power supply drops to the voltage threshold, the controller controls the second power supply branch to be turned on and controls the first power supply branch to be turned off. After boosting the output voltage of the power supply, the power supply is supplied to the component, so that the input voltage of the component is not lower than the voltage threshold (such as stabilizing at the voltage threshold), ensuring the working performance of the component. This disclosure does not limit this.

[0069] Optionally, when the second power supply branch is in the conducting state and the target power supply branch is the first power supply branch, the controller can control the first power supply branch to be turned on and then control the second power supply branch to be turned off. After that, the power supply terminal can control the power supply terminal to supply power to the component through the first power supply branch.

[0070] In this disclosure, when the output voltage of the power supply terminal in the power supply circuit is less than or equal to a voltage threshold, in order to reduce the impact on the component's operating performance, the controller will control the second power supply branch to be in a conducting state. When the electronic device starts charging, as the power level increases, the output voltage of the power supply terminal also increases. When the output voltage of the power supply terminal is greater than the voltage threshold, the controller can control the first power supply branch to be turned on and control the second power supply branch to be turned off. For example, with Figure 4 For example, Figure 4 This is a schematic diagram of voltage adjustment during the charging state provided in this disclosure, as shown below. Figure 4 As shown, during charging, as the power supply increases, the output voltage of the power supply also increases. Before the output voltage of the power supply reaches the voltage threshold, the controller controls the second power supply branch to turn on and controls the first power supply branch to turn off. After boosting the output voltage of the power supply, the power is supplied to the component, so that the input voltage of the component is not lower than the voltage threshold (e.g., it is stable at the voltage threshold). After the output voltage of the power supply reaches the voltage threshold, the controller controls the first power supply branch to turn on and controls the second power supply branch to turn off. At this time, the input voltage of the component is the output voltage of the power supply. This disclosure does not limit this.

[0071] In this embodiment, the controller first determines the current output voltage of the power supply terminal, then determines the target power supply branch to be used based on the relationship between the output voltage and a voltage threshold, and finally controls the power supply terminal to supply power to the component through the target power supply branch. Thus, by determining the target power supply branch based on the relationship between the output voltage of the power supply terminal and a voltage threshold, and controlling the power supply terminal to supply power to the component through the target power supply branch, the controller effectively reduces the impact of low voltage on the component's operating performance, improves the reliability of the power supply method for components in electronic devices, and enhances the user experience.

[0072] Figure 5 This is a schematic flowchart illustrating a power supply method for a component in an electronic device, provided as another embodiment of the present disclosure.

[0073] like Figure 5 As shown, the power supply method for components in this electronic device may include the following steps, wherein the electronic device includes the power supply circuit proposed in the embodiments of this disclosure:

[0074] Step 501: Determine the current output voltage at the power supply terminal.

[0075] The specific implementation of step 501 can be found in the detailed description of other embodiments of this disclosure, and will not be repeated here.

[0076] Step 502: Determine the current low-voltage protection threshold of the electronic device.

[0077] The low-voltage protection threshold can be the shutdown voltage of the electronic device, which can be preset or determined according to actual needs. For example, the low-voltage protection threshold can be 3.2V, and this disclosure does not limit it.

[0078] It should be noted that different electronic devices may have different or the same low-voltage protection thresholds, and this disclosure does not limit this.

[0079] Step 503: Determine the voltage threshold based on the current low-voltage protection threshold and the operating voltage range of the component.

[0080] It should be noted that the operating voltage range of the component can be preset. Different components may have different or the same operating voltage range, and this disclosure does not limit this.

[0081] In this disclosure, after determining the current low-voltage protection threshold of the electronic device, the controller can determine the voltage threshold based on the current low-voltage protection threshold and the operating voltage range of the components, thereby improving the reliability of the determined voltage threshold and providing conditions for reducing the low-voltage protection threshold of the electronic device to extend the low-voltage battery life of the electronic device.

[0082] Optionally, when the power supply terminal supplies power to multiple components, the controller can also determine the voltage threshold associated with each component based on the current low-voltage protection threshold and the operating voltage range of each component. The voltage thresholds associated with each component may be different or they may be the same, and this disclosure does not limit this.

[0083] Step 504: Determine the target power supply branch to be used based on the relationship between the output voltage and the voltage threshold.

[0084] Optionally, when the power supply terminal supplies power to multiple components, after determining the voltage threshold associated with each component, the controller can determine the target power supply branch to be used for each component based on the relationship between the output voltage and the voltage threshold associated with each component.

[0085] It should be noted that when the voltage threshold associated with each component is different, the target power supply branch to be used for each component may be different, and this disclosure does not limit this.

[0086] Step 505: Control the power supply terminal to supply power to the component through the target power supply branch.

[0087] Optionally, when the power supply terminal supplies power to multiple components, after the controller determines the target power supply branch to be used by each component, it can control the power supply terminal to supply power to the component through the target power supply branch corresponding to each component, thereby ensuring the working performance of each component.

[0088] The specific implementation of steps 504 to 505 can be found in the detailed description of other embodiments of this disclosure, and will not be repeated here.

[0089] In this embodiment, the controller first determines the current output voltage of the power supply terminal and the current low-voltage protection threshold of the electronic device. Then, based on the current low-voltage protection threshold and the operating voltage range of the component, it determines the voltage threshold. Next, based on the relationship between the output voltage and the voltage threshold, it determines the target power supply branch to be used. Finally, it controls the power supply terminal to supply power to the component through the target power supply branch. Thus, by determining the component's voltage threshold based on the current low-voltage protection threshold and the component's operating voltage range, and by determining the target power supply branch based on the relationship between the power supply terminal's output voltage and the voltage threshold, the controller improves the component's performance in low-voltage scenarios and enhances the user experience.

[0090] Figure 6 This is a schematic flowchart illustrating a power supply method for a component in an electronic device, provided as another embodiment of the present disclosure.

[0091] like Figure 6 As shown, the power supply method for components in this electronic device may include the following steps, wherein the electronic device includes the power supply circuit proposed in the embodiments of this disclosure:

[0092] Step 601: Determine the current output voltage at the power supply terminal.

[0093] Step 602: Determine the current low-voltage protection threshold of the electronic device.

[0094] The specific implementation of steps 601 to 602 can be found in the detailed description of other embodiments of this disclosure, and will not be repeated here.

[0095] Step 603: If the current low-voltage protection threshold is greater than or equal to the maximum value in the operating voltage range of the component, the minimum value in the operating voltage range is determined as the voltage threshold.

[0096] In this disclosure, after determining the current low-voltage protection threshold of the electronic device, if the low-voltage protection threshold is greater than or equal to the maximum value in the operating voltage range of the component, in order to ensure the operating performance of the component, the minimum value in the operating voltage range can be determined as the voltage threshold.

[0097] Optionally, after determining the minimum value in the operating voltage range as the voltage threshold, since the current low-voltage protection threshold of the electronic device is greater than or equal to the maximum value in the operating voltage range, and the voltage threshold is less than the low-voltage protection threshold, the controller can adjust the low-voltage protection threshold of the electronic device to the voltage threshold, thereby extending the low-voltage battery life of the electronic device and improving the user experience. This disclosure does not limit this.

[0098] Optionally, after determining the current low-voltage protection threshold of the electronic device, if the current low-voltage protection threshold is less than the minimum value in the operating voltage range of the component, the controller can determine the low-voltage protection threshold as the voltage threshold, thereby effectively ensuring the stability of the component's operating performance. This disclosure does not limit this.

[0099] Step 604: Determine the target power supply branch to be used based on the relationship between the output voltage and the voltage threshold.

[0100] Step 605: Control the power supply terminal to supply power to the component through the target power supply branch.

[0101] The specific implementation of steps 604 to 605 can be found in the detailed description of other embodiments of this disclosure, and will not be repeated here.

[0102] In this embodiment, the controller first determines the current output voltage of the power supply terminal and the current low-voltage protection threshold of the electronic device. If the current low-voltage protection threshold is greater than or equal to the maximum value in the operating voltage range of the component, the minimum value in the operating voltage range is determined as the voltage threshold. Then, based on the relationship between the output voltage and the voltage threshold, the target power supply branch to be used is determined. Finally, the power supply terminal is controlled to supply power to the component through the target power supply branch. Therefore, when the current low-voltage protection threshold of the electronic device is greater than or equal to the maximum value in the operating voltage range of the component, the controller determines the minimum value in the operating voltage range as the voltage threshold and, based on the relationship between the output voltage of the power supply terminal and the voltage threshold, determines the target power supply branch, enabling the power supply terminal to supply power to the component through the target power supply branch. This provides conditions for extending the low-voltage battery life of the electronic device, effectively reducing the impact of low voltage on the component's performance and improving the user experience.

[0103] In this disclosure, to verify the feasibility of the power supply method for components in electronic devices proposed in this disclosure, the performance of the components under the power supply method for electronic devices proposed in this disclosure can be verified by adding a preset voltage (such as 3.2V) boost mode performance retest. Through the verification effect, it can be determined that this disclosure can guarantee the working performance of the components in low-voltage battery life scenarios.

[0104] The following is combined Figure 7 The effects of the power supply method for components in the electronic device provided in this disclosure are illustrated with examples. Figure 7 This is a schematic diagram illustrating the effect of a power supply method for components in an electronic device provided in an embodiment of this disclosure. Figure 7 The components will be explained using a WIFI power amplifier as an example.

[0105] By using the power supply method for components in the electronic device disclosed herein, the low-voltage protection threshold of the electronic device can be set lower (e.g., reduced from the traditional 3.2V to 3V), thereby increasing the low-voltage battery life of the electronic device without affecting WIFI performance. In low-voltage battery life scenarios of electronic devices, the power supply method for components in the electronic device provided herein can boost the input voltage of the WIFI power amplifier (e.g., boost from 3V to 3.4V), thereby ensuring the working performance of the WIFI power amplifier in low-voltage battery life scenarios.

[0106] like Figure 7 As shown in a and 7b Figure 7 a is a schematic diagram comparing the SEM indicators of the WIFI power amplifier provided in this disclosure before and after. Figure 7 b is a schematic diagram comparing the EVM index of the WIFI power amplifier provided in this disclosure before and after. SEM is short for Spectrum Emission Mask (SEM), EVM is short for Error Vector Magnitude (EVM), and spec is a reference specification or standard specification.

[0107] Depend on Figure 7 From a and 7b, it can be seen that at a target power of 19 dBm (Decibels Relative To One Milliwatt, DBM), before applying the power supply method of this disclosure, the SEM index of the WIFI power amplifier of the electronic device had failed, and the EVM index began to deteriorate. After applying the power supply method of this disclosure, both the SEM index and the EVM index of the WIFI power amplifier of the electronic device were significantly improved, thereby optimizing the WIFI quality and user experience in low-voltage scenarios.

[0108] To implement the above embodiments, this disclosure also proposes a power supply device for components in an electronic device.

[0109] Figure 8 This is a schematic diagram of the structure of a power supply device for a component in an electronic device provided in another embodiment of the present disclosure.

[0110] like Figure 8 As shown, the electronic device includes a power supply device 800 for components, and the electronic device includes the power supply circuit in the above embodiments of the present disclosure. The device includes: a first determining module 801, a second determining module 802, and a control module 803.

[0111] The first determining module 801 is used to determine the current output voltage of the power supply terminal;

[0112] The second determining module 802 is used to determine the target power supply branch to be used based on the relationship between the output voltage and the voltage threshold.

[0113] The control module 803 is used to control the power supply terminal to supply power to the component through the target power supply branch.

[0114] Optionally, the control module 803 described above is specifically used for any of the following:

[0115] When the first power supply branch is in the conducting state and the target power supply branch is the second power supply branch, after controlling the second power supply branch to be conducting, the first power supply branch is controlled to be disconnected.

[0116] When the second power supply branch is in a conducting state and the target power supply branch is the first power supply branch, after controlling the first power supply branch to be conducting, the second power supply branch is controlled to be disconnected.

[0117] Optionally, the power supply device 800 for the components in the above-mentioned electronic device further includes:

[0118] The third determining module (not shown in the figure) is used to determine the current low-voltage protection threshold of the electronic device;

[0119] The fourth determining module (not shown in the figure) is used to determine the voltage threshold based on the current low-voltage protection threshold and the operating voltage range of the component.

[0120] Optionally, the fourth determining module mentioned above is specifically used for:

[0121] If the current low-voltage protection threshold is greater than or equal to the maximum value in the component's operating voltage range, the minimum value in the operating voltage range shall be determined as the voltage threshold.

[0122] If the current low-voltage protection threshold is less than the minimum value in the component's operating voltage range, the low-voltage protection threshold is determined to be the voltage threshold.

[0123] Optionally, the fourth determining module described above is further configured to:

[0124] Adjust the low-voltage protection threshold of the electronic device to the voltage threshold.

[0125] Optionally, the power supply terminal supplies power to multiple components, and the second determining module 802 mentioned above is specifically used for:

[0126] Based on the relationship between the output voltage and the voltage threshold associated with each of the multiple components, determine the target power supply branch to be used for each component.

[0127] The functions and specific implementation principles of the modules described in this embodiment can be found in the above method embodiments, and will not be repeated here.

[0128] In the power supply device for components in the electronic device of this disclosure, the controller first determines the current output voltage of the power supply terminal, then determines the target power supply branch to be used based on the relationship between the output voltage and a voltage threshold, and finally controls the power supply terminal to supply power to the component through the target power supply branch. Thus, by determining the target power supply branch based on the relationship between the output voltage of the power supply terminal and the voltage threshold, and controlling the power supply terminal to supply power to the component through the target power supply branch, the controller effectively reduces the impact of low voltage on the component's operating performance, improves the reliability of the power supply method for components in the electronic device, and enhances the user experience.

[0129] To implement the above embodiments, this disclosure also proposes a computer-readable storage medium storing a computer program, which, when executed by a processor, implements a power supply method for components in an electronic device as proposed in the above embodiments of this disclosure.

[0130] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

[0131] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0132] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus or device (such as a computer-based system, a processor-included system or other system that can fetch and execute instructions from, an instruction execution system, apparatus or device).

[0133] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0134] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A power supply circuit, characterized in that, The power supply circuit includes: a power supply, a voltage detection circuit, a first power supply branch, a second power supply branch, and a controller; The output terminal of the power supply is connected to the input terminals of the voltage detection circuit, the first power supply branch, and the second power supply branch, respectively. The output terminal of the voltage detection circuit is connected to the first input terminal of the controller; The first output terminal of the controller is connected to the control terminal of the first power supply branch, and the second output terminal of the controller is connected to the control terminal of the second power supply branch; The controller is used to control the operating status of the first power supply branch and the second power supply branch according to the relationship between the voltage output by the voltage detection circuit and the voltage threshold.

2. The circuit as described in claim 1, characterized in that, The first power supply branch includes a switching assembly connected to the power source and the electrical load respectively, and the second power supply branch includes a boost circuit connected to the power source and the electrical load respectively; The controller is specifically used for: If the voltage input at the first input terminal is greater than the threshold, the switching component is controlled to turn on, and the boost circuit is controlled to turn off. When the voltage input at the first input terminal is less than or equal to a threshold, the boost circuit is turned on and the switch is turned off.

3. The circuit as described in claim 1 or 2, characterized in that, The controller is also configured to determine the voltage threshold based on an input instruction received at its second input terminal.

4. A method for supplying power to components in an electronic device, characterized in that, The electronic device includes a power supply circuit as described in any one of claims 1-3, and the method includes: Determine the current output voltage at the power supply terminal; Based on the relationship between the output voltage and the voltage threshold, the target power supply branch to be used is determined; Control the power supply terminal to supply power to the component through the target power supply branch.

5. The method as described in claim 4, characterized in that, The control of the power supply terminal to supply power to the component through the target power supply branch includes any one of the following: When the first power supply branch is in the conducting state and the target power supply branch is the second power supply branch, after controlling the second power supply branch to be conducting, the first power supply branch is controlled to be disconnected. When the second power supply branch is in a conducting state and the target power supply branch is the first power supply branch, after controlling the first power supply branch to be conducting, the second power supply branch is controlled to be disconnected.

6. The method as described in claim 4 or 5, characterized in that, The method further includes: Determine the current low-voltage protection threshold of the electronic device; The voltage threshold is determined based on the current low-voltage protection threshold and the operating voltage range of the component.

7. The method as described in claim 6, characterized in that, Determining the voltage threshold based on the current low-voltage protection threshold and the operating voltage range of the component includes: If the current low-voltage protection threshold is greater than or equal to the maximum value in the operating voltage range of the component, the minimum value in the operating voltage range is determined as the voltage threshold. If the current low-voltage protection threshold is less than the minimum value in the operating voltage range of the component, the low-voltage protection threshold is determined as the voltage threshold.

8. The method as described in claim 7, characterized in that, After determining the minimum value in the operating voltage range as the voltage threshold, the method further includes: Adjust the low-voltage protection threshold of the electronic device to the voltage threshold.

9. The method as described in claim 6, characterized in that, The power supply terminal supplies power to multiple components. The process of determining the target power supply branch to be used based on the relationship between the output voltage and the voltage threshold includes: Based on the relationship between the output voltage and the voltage threshold associated with each of the plurality of components, the target power supply branch to be used for each of the components is determined.

10. An electronic device, characterized in that, Includes the power supply circuit as described in any one of claims 1-3.

11. A power supply device for a component in an electronic device, characterized in that, The electronic device includes a power supply circuit as described in any one of claims 1-3, and the device includes: The first determining module is used to determine the current output voltage of the power supply terminal; The second determining module is used to determine the target power supply branch to be used based on the relationship between the output voltage and the voltage threshold. A control module is used to control the power supply terminal to supply power to the component through the target power supply branch.

12. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 4-9.

Images