Driving method, driving circuit, power management chip and electronic device

Abstract

The present disclosure relates to a driving method, a driving circuit, a power management chip and an electronic device. The driving method comprises: in response to receiving an adjustment instruction, adjusting a driving voltage according to the adjustment instruction, the adjusted driving voltage corresponding to a running scenario of the electronic device; outputting the adjusted driving voltage to a voltage conversion circuit of the electronic device, so that a switching unit of the voltage conversion circuit is turned on, and the voltage conversion circuit is used to supply power to a load of the electronic device. In the present disclosure, the driving voltage used to turn on the switching unit of the voltage conversion circuit is adjusted according to the adjustment instruction, and the adjusted driving voltage corresponds to the running scenario of the electronic device. The power consumption of the switching unit can be adjusted, the power consumption of the switching unit is optimized, and the standby time of the electronic device is prolonged, and the heat generation of the electronic device is improved.

Description

Technical Field

[0001] This disclosure relates to the field of drive technology, and in particular to a drive method, drive circuit, power management chip and electronic device. Background Technology

[0002] In electronic devices, voltage conversion circuits are used to supply power to the load. The load on the electronic device varies depending on the operating scenario. Currently, the same driving voltage is used to turn on the switching unit in different operating scenarios. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a driving method, a driving circuit, a power management chip, and an electronic device.

[0004] According to a first aspect of the present disclosure, a driving method is provided, the driving method comprising: In response to receiving an adjustment command, the driving voltage is adjusted according to the adjustment command, and the adjusted driving voltage corresponds to the operating scenario of the electronic device; The regulated driving voltage is output to the voltage conversion circuit of the electronic device to drive the switching unit of the voltage conversion circuit to conduct. The voltage conversion circuit is used to supply power to the load of the electronic device.

[0005] In this embodiment, the adjusted driving voltage corresponds to the operating scenario of the electronic device, which can adjust the power consumption of the switching unit, optimize the power consumption of the switching unit, thereby extending the standby time of the electronic device and improving the heat dissipation of the electronic device.

[0006] In some exemplary embodiments of this disclosure, adjusting the drive voltage according to the adjustment command includes: A control signal is generated according to the adjustment command; The driving voltage is adjusted according to the control signal.

[0007] In this embodiment, by generating a control signal to adjust the driving voltage to the voltage indicated by the adjustment command, the adjusted driving voltage can correspond to the operating scenario of the electronic device, thereby optimizing the power consumption of the switching unit.

[0008] In some exemplary embodiments of this disclosure, the adjustment command includes a first command, and the driving voltage includes a first voltage; the generation of a control signal according to the adjustment command includes: A first signal is generated according to the first instruction; The step of adjusting the drive voltage according to the control signal includes: Based on the first signal, the first voltage is adjusted so that the difference between it and the source voltage of the first sub-switching unit of the switching unit is a first difference value; When the first sub-switch unit is turned on, the voltage conversion circuit stores electrical energy.

[0009] In this embodiment, by generating a first signal and adjusting the first voltage to the voltage indicated by the first command, the adjusted first voltage can correspond to the operating scenario of the electronic device, thereby optimizing the power consumption of the first sub-switching unit.

[0010] In some exemplary embodiments of this disclosure, the adjustment command includes a second command, and the driving voltage includes a second voltage; the generation of a control signal according to the adjustment command includes: A second signal is generated according to the second instruction; The step of adjusting the drive voltage according to the control signal includes: According to the second signal, the second voltage is adjusted so that the difference between the voltage and the source voltage of the second sub-switching unit of the switching unit is the second difference value; When the second sub-switch unit is turned on, the voltage conversion circuit releases electrical energy.

[0011] In this embodiment, by generating a second signal to adjust the second voltage to the voltage indicated by the second command, the adjusted second voltage can correspond to the operating scenario of the electronic device, thereby optimizing the power consumption of the second sub-switching unit.

[0012] In some exemplary embodiments of this disclosure, the driving method further includes: Detect the driving voltage; In response to a voltage difference between the driving voltage and the source voltage of the switching unit that is other than a target difference, the control signal is adjusted based on the difference between the voltage difference and the target difference.

[0013] In this embodiment, by setting up a detection step, the accuracy of the driving voltage corresponding to the operating scenario of the electronic device can be improved.

[0014] In some exemplary embodiments of this disclosure, the target difference is in the range of 2V to 3.2V.

[0015] In this embodiment, the target difference is in the range of 2V to 3.2V, which reduces the power consumption of the switching unit compared to the currently used 3.8V and 4.1V.

[0016] In some exemplary embodiments of this disclosure, the adjusted drive voltage minimizes the power consumption of the switching unit in the operating scenario.

[0017] In this embodiment, the power consumption of the switching unit is optimized by adjusting the driving voltage, so that the power consumption of the switching unit is minimized in the operating scenario, thereby extending the standby time of the electronic device and improving the heat dissipation of the electronic device.

[0018] In some exemplary embodiments of this disclosure, the operating scenario includes a first scenario and a second scenario, wherein the load of the electronic device in the first scenario is higher than the load of the electronic device in the second scenario, and the driving voltage in the first scenario is greater than the driving voltage in the second scenario.

[0019] In this embodiment, the load varies under different operating scenarios. By adjusting the driving voltage according to the load, the power consumption of the switching unit can be optimized, thereby extending the standby time of the electronic device and improving the heat dissipation of the electronic device.

[0020] According to a second aspect of the present disclosure, a driving circuit is provided, the driving circuit comprising: A voltage input terminal, which is used to be electrically connected to a power supply; The instruction input terminal is used to receive adjustment instructions. An adjustment circuit is electrically connected to both the voltage input terminal and the command input terminal. The adjustment circuit is used to adjust the driving voltage according to the adjustment command, and the adjusted driving voltage corresponds to the operating scenario of the electronic device. The voltage output terminal is electrically connected to the regulating circuit. The voltage output terminal is used to output the regulated driving voltage to the voltage conversion circuit of the electronic device to drive the switching unit of the voltage conversion circuit to conduct. The voltage conversion circuit is used to supply power to the load of the electronic device.

[0021] In this embodiment, the adjusted driving voltage corresponds to the operating scenario of the electronic device, which can adjust the power consumption of the switching unit, optimize the power consumption of the switching unit, thereby extending the standby time of the electronic device and improving the heat dissipation of the electronic device.

[0022] In some exemplary embodiments of this disclosure, the adjustment circuit includes: A control circuit, electrically connected to the instruction input terminal, is used to generate a control signal according to the adjustment instruction; A voltage regulation circuit is electrically connected to the voltage input terminal, the voltage output terminal, and the control circuit. The voltage regulation circuit is used to adjust the driving voltage according to the control signal.

[0023] In this embodiment, by generating a control signal to adjust the driving voltage to the voltage indicated by the adjustment command, the adjusted driving voltage can correspond to the operating scenario of the electronic device, thereby optimizing the power consumption of the switching unit.

[0024] In some exemplary embodiments of this disclosure, the voltage input terminal includes a first sub-input terminal, which is used for electrical connection with the power supply. The instruction input terminal includes a second sub-input terminal, which is used to receive the first instruction in the adjustment instruction; The voltage output terminal includes a first sub-output terminal, which is used to output a first voltage in the driving voltage, and the first voltage is used to drive the first sub-switching unit of the switching unit to turn on. The first instruction is used to instruct the first voltage to be adjusted to a value equal to the difference between the first voltage and the source voltage of the first sub-switching unit; when the first sub-switching unit is turned on, the voltage conversion circuit stores electrical energy.

[0025] In this embodiment, the first instruction can instruct the first voltage to be adjusted to correspond to the operating scenario of the electronic device, so as to optimize the power consumption of the first sub-switching unit.

[0026] In some exemplary embodiments of this disclosure, the control circuit includes: A first sub-control circuit is electrically connected to the second sub-input terminal, and the first sub-control circuit is used to generate a first signal according to the first instruction. The voltage regulation circuit includes: The first sub-adjustment circuit is electrically connected to the first sub-input terminal, the first sub-output terminal, and the first sub-control circuit. The first sub-adjustment circuit is used to adjust the first voltage to a first difference value based on the first signal and the source voltage of the first sub-switching unit.

[0027] In this embodiment, by generating a first signal and adjusting the first voltage to the voltage indicated by the first command, the adjusted first voltage can correspond to the operating scenario of the electronic device, thereby optimizing the power consumption of the first sub-switching unit.

[0028] In some exemplary embodiments of this disclosure, the voltage input terminal includes a third sub-input terminal, which is used for electrical connection with the power supply. The instruction input terminal includes a fourth sub-input terminal, which is used to receive the second instruction in the adjustment instruction; The voltage output terminal includes a second sub-output terminal, which is used to output a second voltage in the driving voltage, and the second voltage is used to drive the second sub-switching unit of the switching unit to conduct. The second instruction is used to instruct the second voltage to be adjusted to a second difference value with respect to the source voltage of the second sub-switching unit; when the second sub-switching unit is turned on, the voltage conversion circuit releases electrical energy.

[0029] In this embodiment, the second instruction can instruct the second voltage to be adjusted to correspond to the operating scenario of the electronic device, so as to optimize the power consumption of the second sub-switching unit.

[0030] In some exemplary embodiments of this disclosure, the control circuit includes: The second sub-control circuit is electrically connected to the fourth sub-input terminal, and the second sub-control circuit is used to generate a second signal according to the second instruction. The voltage regulation circuit includes: The second sub-regulation circuit is electrically connected to the third sub-input terminal, the second sub-output terminal, and the second sub-control circuit. The second sub-regulation circuit is used to adjust the second voltage according to the second signal to a second difference value between the second voltage and the source voltage of the second sub-switching unit.

[0031] In this embodiment, by generating a second signal to adjust the second voltage to the voltage indicated by the second command, the adjusted second voltage can correspond to the operating scenario of the electronic device, thereby optimizing the power consumption of the second sub-switching unit.

[0032] In some exemplary embodiments of this disclosure, the driving circuit further includes: A voltage detection circuit is electrically connected to both the voltage output terminal and the control circuit. The voltage detection circuit is used to detect the driving voltage. In response to a voltage difference between the driving voltage and the source voltage of the switching unit that is a difference other than a target difference, the control circuit is controlled to adjust the control signal based on the difference between the voltage difference and the target difference.

[0033] In this embodiment, by setting up a detection step, the accuracy of the driving voltage corresponding to the operating scenario of the electronic device can be improved.

[0034] In some exemplary embodiments of this disclosure, the voltage regulation circuit includes a boost circuit and a buck-boost circuit, and the voltage conversion circuit includes a buck circuit.

[0035] In this embodiment, the boost circuit and buck-boost circuit, which serve as voltage regulation circuits, provide a suitable drive voltage for the buck circuit, which serves as voltage conversion circuits, in order to optimize the power consumption of the switching unit.

[0036] According to a third aspect of the present disclosure, a power management chip is provided, the power management chip including the driving circuit described in the second aspect of the present disclosure.

[0037] According to a fourth aspect of the present disclosure, an electronic device is provided, including a system-on-a-chip (SoC) and a power management chip as described in the third aspect of the present disclosure, wherein the SoC is configured to generate and issue adjustment commands to the power management chip; or, processor; Memory used to store processor-executable instructions; The processor is configured to execute the driving method as described in the first aspect of this disclosure.

[0038] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: The driving method provided in this disclosure adjusts the driving voltage for turning on the switching unit of the driving voltage conversion circuit according to the adjustment command. The adjusted driving voltage corresponds to the operating scenario of the electronic device, which can adjust the power consumption of the switching unit, optimize the power consumption of the switching unit, thereby extending the standby time of the electronic device and improving the heat dissipation of the electronic device.

[0039] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0040] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0041] Figure 1 This is a flowchart illustrating a driving method according to an exemplary embodiment.

[0042] Figure 2 This is a flowchart illustrating a driving method according to another exemplary embodiment.

[0043] Figure 3 This is a flowchart illustrating a driving method according to another exemplary embodiment.

[0044] Figure 4 This is a flowchart illustrating a driving method according to another exemplary embodiment.

[0045] Figure 5This is a schematic diagram of a driving circuit according to an exemplary embodiment.

[0046] Figure 6 This is a schematic diagram of a drive circuit according to another exemplary embodiment.

[0047] Figure 7 This is a schematic diagram of a drive circuit according to another exemplary embodiment.

[0048] Figure 8 This is a schematic diagram of a drive circuit according to another exemplary embodiment.

[0049] Figure 9 This is a schematic diagram of a drive circuit according to another exemplary embodiment.

[0050] Figure 10 This is a block diagram of an electronic device according to an exemplary embodiment.

[0051] In the picture: 1-Voltage input terminal; 2-Command input terminal; 3-Regulation circuit; 4-Voltage output terminal; 5-Voltage conversion circuit; 6-Load; 7-Voltage detection circuit; 8-System-on-a-Chip (SoC); 11-First sub-input terminal; 12-Third sub-input terminal; 21-Second sub-input terminal; 22-Fourth sub-input terminal; 31-Control circuit; 32-Voltage regulation circuit; 41-First sub-output terminal; 42-Second sub-output terminal; 51-Switching unit; 71-First sub-detection circuit; 72-Second sub-detection circuit; 81-Voltage regulation interface; 311-First sub-control circuit; 312-Second sub-control circuit; 321-First sub-regulation circuit; 322-Second sub-regulation circuit; 511-First sub-switching unit; 512-Second sub-switching unit; C1-First capacitor; C2-Second capacitor; C3-Third capacitor; C4-Fourth capacitor; C5-Fifth capacitor; C6-Sixth capacitor; CMD-Regulation command; CMD1-First command; C MD2 - Second instruction; CTRL - Control signal; CTRL1 - First signal; CTRL2 - Second signal; L1 - First inductor; L2 - Second inductor; L3 - Third inductor; PGND1 - First ground; PGND2 - Second ground; VDR - Drive voltage; VDR1 - First voltage; VDR2 - Second voltage; VPH - Power supply; SW1 - First node; VREG1 - Second node; SENSE1 - Third node; VIN - Fourth node; SW2 - Fifth node; GND1 - Sixth node; VREG2 - Seventh node; SENSE2 - Eighth node; GND - Ground; 1000 - Electronic device; 1002 - Processing component; 1004 - Memory; 1006 - Power supply component; 1008 - Multimedia component; 1010 - Audio component; 1012 - Input / output interface; 1014 - Sensor component; 1016 - Communication component; 1020 - Processor. Detailed Implementation

[0052] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0053] In electronic devices, voltage conversion circuits are used to power loads. The loads on these devices vary depending on the operating environment. Under different loads, the optimal driving voltage for turning on the switching units of the voltage conversion circuit to minimize power consumption differs. Currently, the same driving voltage is used to turn on the switching units in different operating scenarios. Because the driving voltage cannot be adjusted, it is impossible to optimize the power consumption of the switching units.

[0054] To address the aforementioned issues, this disclosure provides a driving method that adjusts the driving voltage used to turn on the switching unit of the driving voltage conversion circuit according to an adjustment command. The adjusted driving voltage corresponds to the operating scenario of the electronic device, thereby adjusting the power consumption of the switching unit, optimizing the power consumption of the switching unit, extending the standby time of the electronic device, and improving the heat dissipation of the electronic device.

[0055] In some exemplary embodiments, a driving method is provided, such as Figure 1 As shown, the driving method includes: S100: In response to receiving an adjustment command, adjust the drive voltage according to the adjustment command.

[0056] The adjusted drive voltage corresponds to the operating scenario of the electronic device.

[0057] S200 outputs the regulated drive voltage to the voltage conversion circuit of the electronic device to drive the switching unit of the voltage conversion circuit to conduct.

[0058] Voltage conversion circuits are used to supply power to the loads of electronic devices.

[0059] Electronic devices can include mobile phones, tablets, laptops, smart robots, smart wearable devices, and more. Voltage conversion circuits can be used within these devices to power their loads. For example, a voltage conversion circuit can convert the voltage of an external power source or the internal power source of an electronic device to power components such as the processor, memory, screen, camera, communication module, and sensors.

[0060] In some examples, the voltage conversion circuit can be a buck converter, and the switching unit in the voltage conversion circuit can include one or more transistors, which can be N-type transistors or P-type transistors. The power consumption of the switching unit varies depending on the drive voltage used to turn it on. For example, for a transistor, its drive power consumption is positively correlated with the drive voltage, while its on-state power consumption is negatively correlated with the drive voltage under the same load. The power consumption of the switching unit also varies depending on the operating scenario and load of the electronic device. For example, the on-state power consumption of the transistor is also positively correlated with the load under the operating scenario. Adjusting the drive voltage to correspond to the operating scenario of the electronic device can minimize the power consumption of the switching unit under the operating scenario when using the adjusted drive voltage to turn it on.

[0061] In some examples, the processor or system-on-a-chip (SoC) of an electronic device can determine the operating scenario of the device and generate adjustment instructions based on the scenario. These instructions are then sent to the instruction input terminal of the device's drive circuit. The adjustment circuit within the drive circuit can adjust the drive voltage according to the adjustment instructions, ensuring that the adjusted drive voltage corresponds to the operating scenario of the electronic device. The drive circuit then outputs the adjusted drive voltage to a voltage conversion circuit through its voltage output terminal, thereby turning on the switching unit of the voltage conversion circuit.

[0062] In this embodiment, the adjusted driving voltage corresponds to the operating scenario of the electronic device, which can adjust the power consumption of the switching unit, optimize the power consumption of the switching unit, thereby extending the standby time of the electronic device and improving the heat dissipation of the electronic device.

[0063] In some embodiments, such as Figure 2 As shown, adjusting the drive voltage according to the adjustment command in step S100 includes: S110. Generate control signals according to adjustment instructions.

[0064] In some examples, the adjustment command can be used to instruct the voltage difference between the drive voltage and the source voltage of the switching unit to be adjusted to a target difference, which can be in the range of 2V to 3.2V, such as 2V, 2.4V, 2.7V, 3.2V, etc. The control circuit in the adjustment circuit can generate a control signal according to the adjustment command, and the control signal can be a pulse width modulation (PWM) signal.

[0065] S120, Adjust the drive voltage according to the control signal.

[0066] In some examples, the voltage regulation circuit in the regulation circuit can adjust the drive voltage according to a control signal. For example, the voltage regulation circuit controls its internal switching devices to turn on or off according to a pulse width modulation signal, so as to raise or lower the voltage of the power supply connected to the voltage input terminal of the drive circuit as the drive voltage, so that the voltage difference between the regulated drive voltage and the source voltage of the switching unit is the target difference value.

[0067] In this embodiment, by generating a control signal to adjust the driving voltage to the voltage indicated by the adjustment command, the adjusted driving voltage can correspond to the operating scenario of the electronic device, thereby optimizing the power consumption of the switching unit.

[0068] In some embodiments, the adjustment command includes a first command, and the drive voltage includes a first voltage.

[0069] Step S110, generating a control signal according to the adjustment command, includes: The first signal is generated according to the first instruction.

[0070] Step S120, adjusting the drive voltage according to the control signal, includes: According to the first signal, the first voltage is adjusted to a value equal to the difference between the voltage of the first sub-switching unit of the switching unit and the source voltage of the first sub-switching unit.

[0071] When the first sub-switch unit is turned on, the voltage conversion circuit stores electrical energy.

[0072] In some examples, the first sub-switching unit can be a transistor, which can be either an N-type transistor or a P-type transistor. When the first sub-switching unit is turned on, the input voltage of the voltage conversion circuit, after passing through the first sub-switching unit and the energy storage element, supplies power to the load. During this process, the energy storage element stores energy. The energy storage element can be an inductor.

[0073] In some examples, a first voltage can be used to drive a first sub-switching unit to turn on, and a first instruction can be used to instruct the first voltage to be adjusted to a value equal to the difference between the first voltage and the source voltage of the first sub-switching unit. This first difference could be, for example, 2.4V, 3.2V, etc. A first sub-control circuit in the control circuit can generate a first signal based on the first instruction; this first signal can be a pulse-width modulated signal.

[0074] In some examples, the first sub-regulation circuit in the voltage regulation circuit can adjust the first voltage according to the first signal. For example, the first sub-regulation circuit controls its internal switching device to turn on or off according to the pulse width modulation signal, so as to increase the voltage of the power supply connected to the first sub-input terminal of the voltage input terminal as the first voltage, and the difference between the regulated first voltage and the source voltage of the first sub-switching unit is the first difference value.

[0075] In this embodiment, by generating a first signal and adjusting the first voltage to the voltage indicated by the first command, the adjusted first voltage can correspond to the operating scenario of the electronic device, thereby optimizing the power consumption of the first sub-switching unit.

[0076] In some embodiments, the adjustment command includes a second command, and the drive voltage includes a second voltage.

[0077] Step S110, generating a control signal according to the adjustment command, includes: A second signal is generated according to the second instruction.

[0078] Step S120, adjusting the drive voltage according to the control signal, includes: According to the second signal, the second voltage is adjusted to a value equal to the difference between the source voltage of the second sub-switching unit of the switching unit and the second difference value.

[0079] When the second sub-switch unit is turned on, the voltage conversion circuit releases electrical energy.

[0080] In some examples, the second sub-switching unit can be a transistor, which can be either an N-type transistor or a P-type transistor. When the second sub-switching unit is turned on, the voltage conversion circuit can continue to supply power to the load by releasing the electrical energy stored in the energy storage element.

[0081] In some examples, the second voltage can be used to drive the second sub-switching unit to turn on, and the second command can be used to instruct that the second voltage be adjusted to a second difference value, which is the difference between the second voltage and the source voltage of the second sub-switching unit. The second difference value could be, for example, 2V, 2.7V, etc. The second sub-control circuit in the control circuit can generate a second signal according to the second command; the second signal can be a pulse-width modulated signal.

[0082] In some examples, the second sub-regulation circuit in the voltage regulation circuit can adjust the second voltage according to the second signal. For example, the second sub-regulation circuit controls its internal switching device to turn on or off according to the pulse width modulation signal, so as to raise or lower the voltage of the power supply connected to the third sub-input terminal of the voltage input terminal as the second voltage, and the difference between the regulated second voltage and the source voltage of the second sub-switching unit is the second difference value.

[0083] In this embodiment, by generating a second signal to adjust the second voltage to the voltage indicated by the second command, the adjusted second voltage can correspond to the operating scenario of the electronic device, thereby optimizing the power consumption of the second sub-switching unit.

[0084] In some embodiments, such as Figure 3 As shown, the driving method also includes: S300, detects drive voltage.

[0085] In some examples, the driving voltage output from the voltage output terminal of the driving circuit can be detected by a voltage detection circuit of the driving circuit. The voltage detection circuit may include, for example, a voltage divider circuit.

[0086] S400: In response to the voltage difference between the drive voltage and the source voltage of the switching unit being a difference other than the target difference, the control signal is adjusted based on the difference between the voltage difference and the target difference.

[0087] In some examples, the voltage detection circuit can calculate the voltage difference between the acquired drive voltage and the source voltage of the switching unit, and compare this voltage difference with a target difference. If the voltage difference is the target difference, it can be determined that the drive voltage has been adjusted to correspond to the operating scenario of the electronic device, and no further adjustment is needed. If the voltage difference is not the target difference, it can be determined that the drive voltage has not yet been adjusted to correspond to the operating scenario of the electronic device, and further adjustment is required.

[0088] In some examples, the control signal can be a pulse width modulation (PWM) signal. If the difference between the current voltage difference and the target difference is positive, the drive voltage needs to be reduced. In this case, the voltage detection circuit can control the control circuit to decrease the duty cycle of the PWM signal. If the difference between the current voltage difference and the target difference is negative, the drive voltage needs to be increased. In this case, the voltage detection circuit can control the control circuit to increase the duty cycle of the PWM signal.

[0089] In this embodiment, by setting up a detection step, the accuracy of the driving voltage corresponding to the operating scenario of the electronic device can be improved.

[0090] In some embodiments, the target difference is in the range of 2V to 3.2V.

[0091] In this embodiment, the target difference is in the range of 2V to 3.2V, for example, it can be 2V, 2.4V, 2.7V, 3.2V, etc., which reduces the power consumption of the switching unit compared to the currently used 3.8V and 4.1V.

[0092] In some embodiments, the adjusted drive voltage minimizes the power consumption of the switching unit during operation.

[0093] In this embodiment, the power consumption of the switching unit is optimized by adjusting the driving voltage, so that the power consumption of the switching unit is minimized in the operating scenario, thereby extending the standby time of the electronic device and improving the heat dissipation of the electronic device.

[0094] In some embodiments, the operating scenario includes a first scenario and a second scenario, wherein the load of the electronic device in the first scenario is higher than the load of the electronic device in the second scenario, and the driving voltage in the first scenario is greater than the driving voltage in the second scenario.

[0095] In some examples, the first scenario could be a benchmarking scenario, a large-scale gaming scenario, etc., where the load on the electronic device can reach or approach its maximum load. The load current of the electronic device in the first scenario is, for example, 2A or 3A. The first voltage in the adjusted drive voltage corresponding to the first scenario is, for example, 7V, the source voltage of the first sub-switch unit of the switching unit is, for example, 3.8V, and the first difference in the target difference is, for example, 3.2V, minimizing the power consumption of the first sub-switch unit in the first scenario. The second voltage in the adjusted drive voltage corresponding to the first scenario is, for example, 2.7V, the source voltage of the second sub-switch unit of the switching unit is, for example, 0V, and the second difference in the target difference is, for example, 2.7V, minimizing the power consumption of the second sub-switch unit in the first scenario. While reducing the power consumption of the switching unit, the heat generated by the switching unit under high load scenarios can also be reduced, thereby improving the heat dissipation of the electronic device.

[0096] In other examples, the second scenario can be a regular use scenario of the electronic device (such as playing video, playing audio, navigation, etc.), standby, sleep, etc., where the load on the electronic device is lower than that in the first scenario. The load current of the electronic device in the second scenario is, for example, 500mA or 5mA. The first voltage in the adjusted drive voltage corresponding to the second scenario is, for example, 6.2V, the source voltage of the first sub-switch unit of the switching unit is, for example, 3.8V, and the first difference in the target difference is, for example, 2.4V, minimizing the power consumption of the first sub-switch unit in the second scenario. The second voltage in the adjusted drive voltage corresponding to the second scenario is, for example, 2V, the source voltage of the second sub-switch unit of the switching unit is, for example, 0V, and the second difference in the target difference is, for example, 2V, minimizing the power consumption of the second sub-switch unit in the second scenario.

[0097] In this embodiment, the load varies under different operating scenarios. By adjusting the driving voltage according to the load, the power consumption of the switching unit can be optimized, thereby extending the standby time of the electronic device and improving the heat dissipation of the electronic device.

[0098] In some exemplary embodiments, a driving method is provided, such as Figure 4 As shown, the driving method includes: S1. Receive adjustment instructions, which include a first instruction and a second instruction.

[0099] S2. Generate the first signal according to the first instruction.

[0100] S3. According to the first signal, adjust the first voltage to a value equal to the difference between the voltage of the first sub-switching unit of the switching unit and the source voltage of the first sub-switching unit of the switching unit.

[0101] The first voltage can be used to drive the first sub-switching unit to conduct, and can minimize the power consumption of the first sub-switching unit in the operating scenario of the electronic device.

[0102] S4. Generate a second signal according to the second instruction.

[0103] S5. According to the second signal, adjust the second voltage to a value equal to the difference between the voltage of the second sub-switching unit of the switching unit and the source voltage of the second sub-switching unit.

[0104] The second voltage can be used to drive the second sub-switching unit to conduct, and can minimize the power consumption of the second sub-switching unit in the operating scenario of the electronic device.

[0105] In this embodiment, by adjusting the first voltage and the second voltage, the power consumption of both the first sub-switching unit and the second sub-switching unit is minimized in the operating scenario, which can extend the standby time of the electronic device and improve the heat dissipation of the electronic device.

[0106] In some exemplary embodiments, a driving circuit is provided, such as Figure 5 As shown, the drive circuit includes a voltage input terminal 1, a command input terminal 2, an adjustment circuit 3, and a voltage output terminal 4. Voltage input terminal 1 is electrically connected to the power supply VPH. Command input terminal 2 receives the adjustment command CMD. The adjustment circuit 3 is electrically connected to both voltage input terminal 1 and command input terminal 2, and is used to adjust the drive voltage VDR according to the adjustment command CMD. The adjusted drive voltage VDR corresponds to the operating scenario of the electronic device. Voltage output terminal 4 is electrically connected to the adjustment circuit 3, and is used to output the adjusted drive voltage VDR to the voltage conversion circuit 5 of the electronic device, thereby turning on the switching unit 51 of the voltage conversion circuit 5. The voltage conversion circuit 5 supplies power to the load 6 of the electronic device.

[0107] Electronic devices can include mobile phones, tablets, laptops, smart robots, smart wearable devices, etc. Within these electronic devices, a voltage conversion circuit 5 can be used to power the load 6. For example, the voltage conversion circuit 5 can convert the voltage of the external power supply or the power provided by the internal battery of the electronic device to power the load 6, such as the processor, memory, screen, camera, communication module, and sensors within the electronic device.

[0108] In some examples, the voltage conversion circuit 5 can be a buck circuit, and the switching unit 51 in the voltage conversion circuit 5 can include one or more transistors, which can be N-type transistors or P-type transistors. The power consumption of the switching unit 51 varies depending on the driving voltage VDR used to turn it on. For example, for a transistor, its driving power consumption is positively correlated with the driving voltage VDR, while under the same load, its conduction power consumption is negatively correlated with the driving voltage VDR. The power consumption of the switching unit 51 also varies depending on the operating scenario of the electronic device and the load. For example, the conduction power consumption of the transistor is also positively correlated with the load 6 under the operating scenario. Adjusting the driving voltage VDR to correspond to the operating scenario of the electronic device can minimize the power consumption of the switching unit 51 under the operating scenario when using the adjusted driving voltage VDR to turn it on.

[0109] In some examples, the processor or system-on-a-chip of the electronic device can determine the operating scenario of the electronic device and generate an adjustment command (CMD) based on the operating scenario. The adjustment command CMD is then sent to the command input terminal 2 of the electronic device's drive circuit. The adjustment circuit 3 in the drive circuit can adjust the drive voltage VDR according to the adjustment command CMD. This can be achieved by transforming the voltage at voltage input terminal 1 according to the adjustment command CMD to use the adjusted drive voltage VDR as the drive voltage, ensuring that the adjusted drive voltage VDR corresponds to the operating scenario of the electronic device. The drive circuit outputs the adjusted drive voltage VDR to the voltage conversion circuit 5 through its voltage output terminal 4, thereby turning on the switching unit 51 of the voltage conversion circuit 5.

[0110] In this embodiment, the adjusted driving voltage corresponds to the operating scenario of the electronic device, which can adjust the power consumption of the switching unit, optimize the power consumption of the switching unit, thereby extending the standby time of the electronic device and improving the heat dissipation of the electronic device.

[0111] In some embodiments, such as Figure 6 As shown, the adjustment circuit 3 includes a control circuit 31 and a voltage adjustment circuit 32. The control circuit 31 is electrically connected to the command input terminal 2 and is used to generate a control signal CTRL according to the adjustment command CMD. The voltage adjustment circuit 32 is electrically connected to the voltage input terminal 1, the voltage output terminal 4, and the control circuit 31, and is used to adjust the drive voltage VDR according to the control signal CTRL.

[0112] In some examples, the adjustment instruction CMD can be used to instruct the voltage difference between the drive voltage VDR and the source voltage of the switching unit 51 to be adjusted to a target difference, which can be in the range of 2V to 3.2V, such as 2V, 2.4V, 2.7V, 3.2V, etc. The control circuit 31 can generate a control signal CTRL according to the adjustment instruction CMD, and the control signal CTRL can be a pulse width modulation signal.

[0113] In some examples, the voltage regulation circuit 32 can adjust the drive voltage VDR according to the control signal CTRL. For example, the voltage regulation circuit 32 controls its internal switching device to turn on or off according to the pulse width modulation signal, so as to raise or lower the voltage of the power supply VPH connected to the voltage input terminal 1 of the drive circuit as the drive voltage VDR, so that the voltage difference between the adjusted drive voltage VDR and the source voltage of the switching unit 51 is the target difference value.

[0114] In this embodiment, by generating a control signal to adjust the driving voltage to the voltage indicated by the adjustment command, the adjusted driving voltage can correspond to the operating scenario of the electronic device, thereby optimizing the power consumption of the switching unit.

[0115] In some embodiments, such as Figure 7As shown, voltage input terminal 1 includes a first sub-input terminal 11. The first sub-input terminal 11 is used for electrical connection with the power supply VPH. Command input terminal 2 includes a second sub-input terminal 21. The second sub-input terminal 21 is used for receiving the first command CMD1 in the adjustment command CMD. Voltage output terminal 4 includes a first sub-output terminal 41. The first sub-output terminal 41 is used for outputting the first voltage VDR1 in the drive voltage VDR. The first voltage VDR1 is used to drive the first sub-switching unit 511 of the switching unit 51 to conduct. The first command CMD1 is used to indicate that the first voltage VDR1 is adjusted to a first difference value with the source voltage of the first sub-switching unit 511. When the first sub-switching unit 511 is conducted, the voltage conversion circuit 5 stores electrical energy.

[0116] In some embodiments, such as Figure 7 As shown, the control circuit 31 includes a first sub-control circuit 311. The first sub-control circuit 311 is electrically connected to the second sub-input terminal 21, and is used to generate a first signal CTRL1 according to the first instruction CMD1. The voltage regulation circuit 32 includes a first sub-regulation circuit 321. The first sub-regulation circuit 321 is electrically connected to the first sub-input terminal 11, the first sub-output terminal 41, and the first sub-control circuit 311, and is used to adjust the first voltage VDR1 according to the first signal CTRL1 so that the difference between it and the source voltage of the first sub-switching unit 511 is a first difference value.

[0117] In some examples, the first sub-switching unit 511 can be a transistor, which can be either an N-type transistor or a P-type transistor. When the first sub-switching unit 511 is turned on, the input voltage of the voltage conversion circuit 5, after passing through the first sub-switching unit 511 and the energy storage element, supplies power to the load. During this process, the energy storage element stores energy. The energy storage element can be an inductor.

[0118] In some examples, the first voltage VDR1 can be used to drive the first sub-switching unit 511 to turn on, and the first instruction CMD1 can be used to indicate that the first voltage VDR1 is adjusted to a first difference value with respect to the source voltage of the first sub-switching unit 511. The first difference value is, for example, 2.4V, 3.2V, etc. The first sub-control circuit 311 can generate a first signal CTRL1 according to the first instruction CMD1, and the first signal CTRL1 can be a pulse width modulation signal.

[0119] In some examples, the first sub-regulation circuit 321 can adjust the first voltage VDR1 according to the first signal CTRL1. For example, the first sub-regulation circuit 321 controls its internal switching device to turn on or off according to the pulse width modulation signal, so as to raise the voltage of the power supply VPH connected to the first sub-input terminal 11 to serve as the first voltage VDR1, and make the difference between the adjusted first voltage VDR1 and the source voltage of the first sub-switching unit 511 the first difference value.

[0120] In this embodiment, by generating a first signal and adjusting the first voltage to the voltage indicated by the first command, the adjusted first voltage can correspond to the operating scenario of the electronic device, thereby optimizing the power consumption of the first sub-switching unit.

[0121] In some embodiments, such as Figure 7 As shown, voltage input terminal 1 includes a third sub-input terminal 12. The third sub-input terminal 12 is used for electrical connection with the power supply VPH. Command input terminal 2 includes a fourth sub-input terminal 22. The fourth sub-input terminal 22 is used for receiving the second command CMD2 in the adjustment command CMD. Voltage output terminal 4 includes a second sub-output terminal 42. The second sub-output terminal 42 is used for outputting the second voltage VDR2 in the drive voltage VDR. The second voltage VDR2 is used to drive the second sub-switching unit 512 of the switching unit 51 to conduct. The second command CMD2 is used to instruct that the second voltage VDR2 be adjusted to a second difference value with the source voltage of the second sub-switching unit 512. When the second sub-switching unit 512 is conducted, the voltage conversion circuit 5 releases electrical energy.

[0122] In some embodiments, such as Figure 7 As shown, the control circuit 31 includes a second sub-control circuit 312. The second sub-control circuit 312 is electrically connected to the fourth sub-input terminal 22, and is used to generate a second signal CTRL2 according to the second instruction CMD2. The voltage regulation circuit 32 includes a second sub-regulation circuit 322. The second sub-regulation circuit 322 is electrically connected to the third sub-input terminal 12, the second sub-output terminal 42, and the second sub-control circuit 312, and is used to adjust the second voltage VDR2 according to the second signal CTRL2 until the difference between VDR2 and the source voltage of the second sub-switching unit 512 is a second difference value.

[0123] In some examples, the second sub-switching unit 512 can be a transistor, which can be either an N-type transistor or a P-type transistor. When the second sub-switching unit 512 is turned on, the voltage conversion circuit 5 can continue to supply power to the load by releasing the electrical energy stored in the energy storage element.

[0124] In some examples, the second voltage VDR2 can be used to drive the second sub-switching unit 512 to turn on, and the second instruction CMD2 can be used to instruct that the second voltage VDR2 be adjusted to a second difference value with respect to the source voltage of the second sub-switching unit 512. The second difference value could be, for example, 2V, 2.7V, etc. The second sub-control circuit 312 can generate a second signal CTRL2 according to the second instruction CMD2, and the second signal CTRL2 can be a pulse-width modulated signal.

[0125] In some examples, the second sub-regulation circuit 322 can adjust the second voltage VDR2 according to the second signal CTRL2. For example, the second sub-regulation circuit 322 controls its internal switching devices to turn on or off according to the pulse width modulation signal, so as to raise or lower the voltage of the power supply VPH connected to the third sub-input terminal 12 as the second voltage VDR2, and make the difference between the adjusted second voltage VDR2 and the source voltage of the second sub-switching unit 512 the second difference value.

[0126] In this embodiment, by generating a second signal to adjust the second voltage to the voltage indicated by the second command, the adjusted second voltage can correspond to the operating scenario of the electronic device, thereby optimizing the power consumption of the second sub-switching unit.

[0127] In some embodiments, such as Figure 8 As shown, the drive circuit also includes a voltage detection circuit 7. The voltage detection circuit 7 is electrically connected to both the voltage output terminal 4 and the control circuit 31. The voltage detection circuit 7 is used to detect the drive voltage VDR. In response to the voltage difference between the drive voltage VDR and the source voltage of the switching unit 51 being a difference other than the target difference, the control circuit 31 is controlled to adjust the control signal CTRL based on the difference between the voltage difference and the target difference.

[0128] In some examples, the driving voltage VDR output from the voltage output terminal 4 can be detected by the voltage detection circuit 7.

[0129] In some examples, the voltage detection circuit 7 can calculate the voltage difference between the acquired drive voltage VDR and the source voltage of the switching unit 51, and compare the voltage difference with a target difference. If the voltage difference is the target difference, it can be determined that the drive voltage VDR has been adjusted to correspond to the operating scenario of the electronic device, and no further adjustment of the drive voltage VDR is required. If the voltage difference is not the target difference, it can be determined that the drive voltage VDR has not yet been adjusted to correspond to the operating scenario of the electronic device, and further adjustment of the drive voltage VDR is required.

[0130] In some examples, the control signal CTRL can be a pulse width modulation (PWM) signal. If the difference between the voltage difference and the target difference is positive, the drive voltage VDR needs to be reduced. In this case, the voltage detection circuit 7 can control the control circuit 31 to decrease the duty cycle of the PWM signal. If the difference between the voltage difference and the target difference is negative, the drive voltage VDR needs to be increased. In this case, the voltage detection circuit 7 can control the control circuit 31 to increase the duty cycle of the PWM signal.

[0131] In this embodiment, by setting up a detection step, the accuracy of the driving voltage corresponding to the operating scenario of the electronic device can be improved.

[0132] In some embodiments, the voltage regulation circuit 32 includes a boost circuit and a buck-boost circuit. The voltage conversion circuit 5 includes a buck circuit.

[0133] In some examples, voltage conversion circuit 5 reduces the voltage of the external power supply or the power supplied by the internal battery of the electronic device to power the load 6.

[0134] In some examples, the source voltage of the first sub-switching unit 511 of the voltage conversion circuit 5 is the voltage of the external power supply or the power supplied by the internal battery of the electronic device. The source of the second sub-switching unit 512 of the voltage conversion circuit 5 is grounded, and the source voltage is 0V. The voltage of the power supply VPH can be the same as the source voltage of the first sub-switching unit 511. The first sub-regulation circuit 321 of the voltage regulation circuit 32 can be a boost circuit, which increases the voltage of the power supply VPH to form a first voltage VDR1, so as to form a voltage difference with the source voltage of the first sub-switching unit 511 sufficient to drive the first sub-switching unit 511 to conduct. The second sub-regulation circuit 322 of the voltage regulation circuit 32 can be a buck-boost circuit, which increases or decreases the voltage of the power supply VPH to form a second voltage VDR2, driving the second sub-switching unit 512 to conduct.

[0135] In this embodiment, the boost circuit and buck-boost circuit, which serve as voltage regulation circuits, provide a suitable drive voltage for the buck circuit, which serves as voltage conversion circuits, in order to optimize the power consumption of the switching unit.

[0136] In some exemplary embodiments, such as Figure 9 As shown, a driving circuit is provided. The driving circuit includes a first sub-input terminal 11, a second sub-input terminal 21, a third sub-input terminal 12, a fourth sub-input terminal 22, a first sub-output terminal 41, a second sub-output terminal 42, a first sub-control circuit 311, a second sub-control circuit 312, a first sub-adjustment circuit 321, a second sub-adjustment circuit 322, a first sub-detection circuit 71, a second sub-detection circuit 72, a first capacitor C1, a second capacitor C2, a first ground terminal PGND1, and a second ground terminal PGND2.

[0137] The first sub-input terminal 11 is electrically connected to the power supply VPH. The first ground terminal PGND1 is electrically connected to the first sub-input terminal 11 through the first capacitor C1. The second sub-input terminal 21 is used to receive the first instruction CMD1 from the voltage regulation interface 81 of the system-on-a-chip 8. The first sub-output terminal 41 is used to output the first voltage VDR1 to the gate of the first sub-switching unit 511 of the voltage conversion circuit 5. The first sub-control circuit 311 is electrically connected to the second sub-input terminal 21, and the first sub-control circuit 311 is used to generate the first signal CTRL1 according to the first instruction CMD1. The first sub-adjustment circuit 321 is a boost circuit. The first sub-adjustment circuit 321 includes a first inductor L1, a third capacitor C3, and a fourth capacitor C4. The first end of the first inductor L1 is electrically connected to the first sub-input terminal 11, and the second end of the first inductor L1 forms the first node SW1 of the first sub-adjustment circuit 321. The first end of the third capacitor C3 is electrically connected to the first end of the first inductor L1, and the second end of the third capacitor C3 is electrically connected to the ground terminal GND. The first terminal of the fourth capacitor C4 forms the second node VREG1 of the first sub-regulation circuit 321, and the second terminal of the fourth capacitor C4 is used for electrical connection with the power supply VPH. The second node VREG1 is electrically connected to the first sub-output terminal 41. The first terminal of the first sub-detection circuit 71 is electrically connected to the first sub-output terminal 41, and the second terminal of the first sub-detection circuit 71 is electrically connected to the third node SENSE1 of the first sub-control circuit 311.

[0138] The third sub-input terminal 12 is electrically connected to the power supply VPH. The second ground terminal PGND2 is electrically connected to the third sub-input terminal 12 through the second capacitor C2. The fourth sub-input terminal 22 is used to receive the second instruction CMD2 from the voltage regulation interface 81 of the system-on-a-chip 8. The second sub-output terminal 42 is used to output the second voltage VDR2 to the gate of the second sub-switching unit 512 of the voltage conversion circuit 5. The second sub-control circuit 312 is electrically connected to the fourth sub-input terminal 22, and the second sub-control circuit 312 is used to generate the second signal CTRL2 according to the second instruction CMD2. The second sub-adjustment circuit 322 is a buck-boost circuit. The second sub-adjustment circuit 322 includes a second inductor L2 and a fifth capacitor C5. The fourth node VIN of the second sub-adjustment circuit 322 is electrically connected to the third sub-input terminal 12. The first end of the second inductor L2 forms the fifth node SW2 of the second sub-adjustment circuit 322, and the second end of the second inductor L2 forms the sixth node GND1 of the second sub-adjustment circuit 322. The first terminal of the fifth capacitor C5 forms the seventh node VREG2 of the second sub-regulation circuit 322, and the second terminal of the fifth capacitor C5 is electrically connected to the ground terminal GND. The seventh node VREG2 is electrically connected to the second sub-output terminal 42. The first terminal of the second sub-detection circuit 72 is electrically connected to the second sub-output terminal 42, and the second terminal of the second sub-detection circuit 72 is electrically connected to the eighth node SENSE2 of the second sub-control circuit 312.

[0139] Voltage conversion circuit 5 is a step-down circuit, including a first sub-switch unit 511, a second sub-switch unit 512, a third inductor L3, and a sixth capacitor C6. The drain of the first sub-switch unit 511 is electrically connected to the power supply VPH, and the source of the first sub-switch unit 511 is electrically connected to the drain of the second sub-switch unit 512. The source of the second sub-switch unit 512 is electrically connected to the ground terminal GND. The first terminal of the third inductor L3 is electrically connected to the drain of the first sub-switch unit 511, and the second terminal of the third inductor L3 is electrically connected to the first terminal of the sixth capacitor C6. The second terminal of the sixth capacitor C6 is electrically connected to the ground terminal GND. The system-on-a-chip 8 is electrically connected to the first terminal of the sixth capacitor C6.

[0140] In some exemplary embodiments, a power management chip is provided, which includes any of the driving circuits described in the above embodiments. Because the power management chip includes the driving circuits described in the above embodiments, the adjusted driving voltage corresponds to the operating scenario of the electronic device, which can adjust the power consumption of the switching unit, optimize the power consumption of the switching unit, thereby extending the standby time of the electronic device and improving the heat dissipation of the electronic device.

[0141] In some exemplary embodiments, an electronic device is provided, which includes a system-on-a-chip (SoC) and a power management chip as described in the above embodiments. The SoC is used to generate and issue adjustment commands to the power management chip. Because the electronic device includes the power management chip described in the above embodiments, the adjusted drive voltage corresponds to the operating scenario of the electronic device, which can adjust the power consumption of the switching unit, optimize the power consumption of the switching unit, thereby extending the standby time of the electronic device and improving the heat dissipation of the electronic device.

[0142] In some exemplary embodiments, such as Figure 10 As shown, an electronic device 1000 is provided. The electronic device 1000 may include one or more of the following components: a processing component 1002, a memory 1004, a power supply component 1006, a multimedia component 1008, an audio component 1010, an input / output (I / O) interface 1012, a sensor component 1014, and a communication component 1016.

[0143] Processing component 1002 typically controls the overall operation of electronic device 1000, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1002 may include one or more processors 1020 to execute instructions to complete all or part of the steps of the driving method described above. Furthermore, processing component 1002 may include one or more modules to facilitate interaction between processing component 1002 and other components. For example, processing component 1002 may include a multimedia module to facilitate interaction between multimedia component 1008 and processing component 1002.

[0144] Memory 1004 is configured to store various types of data to support the operation of electronic device 1000. Examples of such data include instructions for any application or method operating on electronic device 1000, contact data, phonebook data, messages, pictures, videos, etc. Memory 1004 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0145] Power supply component 1006 provides power to various components of electronic device 1000. Power supply component 1006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1000.

[0146] Multimedia component 1008 includes a screen that provides an output interface between electronic device 1000 and user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 1008 includes a front-facing camera and / or a rear-facing camera. When electronic device 1000 is in an operating mode, such as a shooting mode or video mode, the front-facing camera and / or rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0147] Audio component 1010 is configured to output and / or input audio signals. For example, audio component 1010 includes a microphone (MIC) configured to receive external audio signals when electronic device 1000 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1004 or transmitted via communication component 1016. In some embodiments, audio component 1010 also includes a speaker for outputting audio signals.

[0148] I / O interface 1012 provides an interface between processing component 1002 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, start buttons, and lock buttons.

[0149] Sensor assembly 1014 includes one or more sensors for providing state assessments of various aspects of electronic device 1000. For example, sensor assembly 1014 may detect the on / off state of electronic device 1000, the relative positioning of components such as the display and keypad of electronic device 1000, changes in position of electronic device 1000 or a component of electronic device 1000, the presence or absence of user contact with electronic device 1000, the orientation or acceleration / deceleration of electronic device 1000, and temperature changes of electronic device 1000. Sensor assembly 1014 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1014 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0150] Communication component 1016 is configured to facilitate wired or wireless communication between electronic device 1000 and other devices. Electronic device 1000 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 1016 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1016 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0151] In an exemplary embodiment, the electronic device 1000 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described driving method.

[0152] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1004 including instructions, which can be executed by a processor 1020 of an electronic device 1000 to complete the aforementioned driving method. For example, the non-transitory computer-readable storage medium may be a ROM, CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0153] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

[0154] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

[0155] The examples in this document may involve user data, data acquisition, and / or use. All of these aspects comply with relevant laws, regulations, and rules. In the examples, all data collection, acquisition, processing, manipulation, forwarding, and use are conducted with the user's knowledge and confirmation. Accordingly, when implementing each example, the type, scope of use, and usage scenarios of any data or information that may be involved should be communicated to the user and their authorization obtained through appropriate means, in accordance with relevant laws and regulations. The specific methods of notification and / or authorization can vary depending on the actual situation and application scenario; the scope of the solution is not limited in this regard.

[0156] In this manual and the sample solutions, any processing of personal information will be conducted only under legal grounds (such as obtaining the consent of the data subject or being necessary for the performance of a contract) and will only be carried out within the scope stipulated or agreed upon. A user's refusal to process personal information beyond what is necessary for basic functions will not affect the user's use of basic functions.

Claims

1. A driving method, characterized in that, The driving method includes: In response to receiving an adjustment command, the driving voltage is adjusted according to the adjustment command, and the adjusted driving voltage corresponds to the operating scenario of the electronic device; The regulated driving voltage is output to the voltage conversion circuit of the electronic device to drive the switching unit of the voltage conversion circuit to conduct. The voltage conversion circuit is used to supply power to the load of the electronic device.

2. The driving method according to claim 1, characterized in that, The step of adjusting the drive voltage according to the adjustment command includes: A control signal is generated according to the adjustment command; The driving voltage is adjusted according to the control signal.

3. The driving method according to claim 2, characterized in that, The adjustment command includes a first command, and the driving voltage includes a first voltage; the step of generating a control signal according to the adjustment command includes: A first signal is generated according to the first instruction; The step of adjusting the drive voltage according to the control signal includes: Based on the first signal, the first voltage is adjusted so that the difference between it and the source voltage of the first sub-switching unit of the switching unit is a first difference value; When the first sub-switch unit is turned on, the voltage conversion circuit stores electrical energy.

4. The driving method according to claim 2, characterized in that, The adjustment command includes a second command, and the driving voltage includes a second voltage; the step of generating a control signal according to the adjustment command includes: A second signal is generated according to the second instruction; The step of adjusting the drive voltage according to the control signal includes: According to the second signal, the second voltage is adjusted so that the difference between the voltage and the source voltage of the second sub-switching unit of the switching unit is the second difference value; When the second sub-switch unit is turned on, the voltage conversion circuit releases electrical energy.

5. The driving method according to any one of claims 2 to 4, characterized in that, The driving method further includes: Detect the driving voltage; In response to a voltage difference between the driving voltage and the source voltage of the switching unit that is other than a target difference, the control signal is adjusted based on the difference between the voltage difference and the target difference.

6. The driving method according to claim 5, characterized in that, The target difference is in the range of 2V to 3.2V.

7. The driving method according to any one of claims 1 to 4, characterized in that, The adjusted driving voltage minimizes the power consumption of the switching unit under the specified operating conditions.

8. The driving method according to any one of claims 1 to 4, characterized in that, The operating scenarios include a first scenario and a second scenario. In the first scenario, the load of the electronic device is higher than that in the second scenario, and the driving voltage in the first scenario is greater than that in the second scenario.

9. A driving circuit, characterized in that, The driving circuit includes: A voltage input terminal, which is used to be electrically connected to a power supply; The instruction input terminal is used to receive adjustment instructions. An adjustment circuit is electrically connected to both the voltage input terminal and the command input terminal. The adjustment circuit is used to adjust the driving voltage according to the adjustment command, and the adjusted driving voltage corresponds to the operating scenario of the electronic device. The voltage output terminal is electrically connected to the regulating circuit. The voltage output terminal is used to output the regulated driving voltage to the voltage conversion circuit of the electronic device to drive the switching unit of the voltage conversion circuit to conduct. The voltage conversion circuit is used to supply power to the load of the electronic device.

10. The driving circuit according to claim 9, characterized in that, The regulating circuit includes: A control circuit, electrically connected to the instruction input terminal, is used to generate a control signal according to the adjustment instruction; A voltage regulation circuit is electrically connected to the voltage input terminal, the voltage output terminal, and the control circuit. The voltage regulation circuit is used to adjust the driving voltage according to the control signal.

11. The driving circuit according to claim 10, characterized in that, The voltage input terminal includes a first sub-input terminal, which is used to be electrically connected to the power supply. The instruction input terminal includes a second sub-input terminal, which is used to receive the first instruction in the adjustment instruction; The voltage output terminal includes a first sub-output terminal, which is used to output a first voltage in the driving voltage, and the first voltage is used to drive the first sub-switching unit of the switching unit to turn on. The first instruction is used to instruct the first voltage to be adjusted to a value equal to the difference between the first voltage and the source voltage of the first sub-switching unit; when the first sub-switching unit is turned on, the voltage conversion circuit stores electrical energy.

12. The driving circuit according to claim 11, characterized in that, The control circuit includes: A first sub-control circuit is electrically connected to the second sub-input terminal, and the first sub-control circuit is used to generate a first signal according to the first instruction. The voltage regulation circuit includes: The first sub-adjustment circuit is electrically connected to the first sub-input terminal, the first sub-output terminal, and the first sub-control circuit. The first sub-adjustment circuit is used to adjust the first voltage to a first difference value based on the first signal and the source voltage of the first sub-switching unit.

13. The driving circuit according to claim 10, characterized in that, The voltage input terminal includes a third sub-input terminal, which is used to be electrically connected to the power supply. The instruction input terminal includes a fourth sub-input terminal, which is used to receive the second instruction in the adjustment instruction; The voltage output terminal includes a second sub-output terminal, which is used to output a second voltage in the driving voltage, and the second voltage is used to drive the second sub-switching unit of the switching unit to conduct. The second instruction is used to instruct the second voltage to be adjusted to a second difference value with respect to the source voltage of the second sub-switching unit; when the second sub-switching unit is turned on, the voltage conversion circuit releases electrical energy.

14. The driving circuit according to claim 13, characterized in that, The control circuit includes: The second sub-control circuit is electrically connected to the fourth sub-input terminal, and the second sub-control circuit is used to generate a second signal according to the second instruction. The voltage regulation circuit includes: The second sub-regulation circuit is electrically connected to the third sub-input terminal, the second sub-output terminal, and the second sub-control circuit. The second sub-regulation circuit is used to adjust the second voltage according to the second signal to a second difference value between the second voltage and the source voltage of the second sub-switching unit.

15. The driving circuit according to any one of claims 10 to 14, characterized in that, The driving circuit also includes: A voltage detection circuit is electrically connected to both the voltage output terminal and the control circuit. The voltage detection circuit is used to detect the driving voltage. In response to a voltage difference between the driving voltage and the source voltage of the switching unit that is a difference other than a target difference, the control circuit is controlled to adjust the control signal based on the difference between the voltage difference and the target difference.

16. The driving circuit according to any one of claims 10 to 14, characterized in that, The voltage regulation circuit includes a boost circuit and a buck-boost circuit, and the voltage conversion circuit includes a buck circuit.

17. A power management chip, characterized in that, The power management chip includes the drive circuit as described in any one of claims 9 to 16.

18. An electronic device, characterized in that, Includes a system-on-a-chip (SoC) and a power management chip as described in claim 17, wherein the SoC is used to generate and issue adjustment commands to the power management chip; or, processor; Memory used to store processor-executable instructions; The processor is configured to perform the driving method as described in any one of claims 1 to 8.

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