Platform dynamic voltage regulation circuit and electronic equipment

Abstract

The utility model discloses a platform dynamic voltage adjusting circuit and electronic equipment, and belongs to the platform field, the platform dynamic voltage adjusting circuit comprises at least one power adjustable power supply, the power adjustable power supply is used for outputting power adjustable power supply electric energy; the power supply electric energy output by the turn-off power supply can be turned on / off; the main platform comprises at least one normally-open power supply domain and at least one turn-off power supply domain, and the power supply input end of the normally-open power supply domain is connected with the power-adjustable power supply; the power input end of the turn-off power domain is connected with the turn-off power supply. Power supply electric energy output of the power supply domain in the platform is dynamically adjusted according to the working state of the platform so as to reduce the overall power consumption of the platform.

Description

Technical Field

[0001] The utility model relates to the technical field of platforms, and in particular to a platform dynamic voltage adjustment circuit and electronic equipment. Background Art

[0002] As electronic devices gain more and more functionality, the load on their main platforms increases, rapidly increasing their power consumption. This makes low-power design a major challenge for these platforms, and finding a solution to this problem is crucial. Utility Model Content

[0003] The main purpose of the utility model is to provide a platform dynamic voltage adjustment circuit and electronic equipment, aiming to reduce the power consumption of the main platform.

[0004] To achieve the above objectives, the present invention proposes a platform dynamic voltage adjustment circuit, comprising:

[0005] At least one power-adjustable power supply, wherein the power-adjustable power supply is configured to output power-adjustable electrical energy;

[0006] At least one switchable power supply, the power energy output by the switchable power supply being switchable on / off;

[0007] A main platform, the main platform includes at least one normally-on power domain and at least one turn-off power domain, the power input end of the normally-on power domain is connected to the power-adjustable power supply; the power input end of the turn-off power domain is connected to the turn-off power supply.

[0008] In an optional embodiment, the main platform further includes:

[0009] A power consumption management module, wherein a first control end of the power consumption management module is connected to a controlled end of the power-adjustable power supply; a second control end of the power consumption management module is connected to a controlled end of the power supply that can be turned off; the power consumption management module is configured to output a PWM signal with an adjustable duty cycle to the power-adjustable power supply, so that the power-adjustable power supply outputs power of corresponding magnitude to the power input end of the normally-on power domain;

[0010] The power consumption management module is further configured to control the switchable power supply to supply power to / stop supplying power to the switchable power domain.

[0011] In an optional embodiment, the platform has a high-load operation state and an idle state;

[0012] In the high-load operation state, the power consumption management module outputs a PWM signal with a first duty cycle to the power supply to control the power supply to output a first voltage;

[0013] In the idle state, the power consumption management module outputs a PWM signal with a second duty cycle to the power supply to control the power supply to output a second voltage; wherein the first duty cycle is greater than the second duty cycle.

[0014] In an optional embodiment, the power consumption management module controls the power supply to supply power to the power-off power domain according to the received function start control signal;

[0015] The power consumption management module controls the power supply to stop supplying power to the power domain that can be shut down according to the received function shutdown control signal.

[0016] In an optional embodiment, the power adjustable power supply includes:

[0017] A power supply module, wherein the feedback end of the power supply module is connected to the control end of the power consumption management module; the power supply module outputs power supply energy of corresponding magnitude according to the PWM signal output by the power consumption management module.

[0018] In an optional embodiment, the switchable power supply includes:

[0019] The power module is used to convert the incoming electrical energy into electrical energy and then output it;

[0020] A power distribution switch, wherein the input end of the power distribution switch is connected to the power output end of the power module, the output end of the power distribution switch is connected to the power input end of the power domain that can be shut off, and the controlled end of the power distribution switch is connected to the control end of the power consumption management module; the power distribution switch controls the connection between the power module and the power input end of the power domain that can be shut off according to the on / off signal output by the power consumption management module.

[0021] In an optional embodiment, the main platform is a system-level platform.

[0022] The present invention also provides an electronic device, which includes the platform dynamic voltage adjustment circuit as described above.

[0023] In an optional embodiment, the electronic device is a handheld device;

[0024] The electronic device further includes a battery, which is connected to the power supply in the platform dynamic voltage adjustment circuit.

[0025] In an optional embodiment, the electronic device further includes a functional module, and the functional module is connected to the main platform.

[0026] The utility model controls the power supply to adjust the voltage output according to the main platform's own working status. For example, when standby is required, the power supply is controlled to shut down the power of other power domains, and at the same time adjusts the amount of power output to the power domain when in standby mode, and only controls the power supply to provide the power domain in standby mode with the power required for standby mode. When normal operation is resumed, the amount of power output to the power domain in operation is adjusted again, and the power supply is controlled to provide the power domain in operation with the power required for operation. When some intelligent functions in the main platform do not need to be started, the power supply can be controlled to stop supplying power to the power domain related to the intelligent functions, such as the intelligent BANK power domain. When the intelligent functions need to be turned on, the power supply can be controlled to turn on, thereby reducing the power consumption of the entire platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0028] Figure 1 This is a circuit structure diagram of an embodiment of a platform dynamic voltage adjustment circuit of the utility model;

[0029] Figure 2 This is a structural diagram of another embodiment of the platform dynamic voltage adjustment circuit of the utility model;

[0030] Figure 3 This is a structural diagram of another embodiment of the platform dynamic voltage adjustment circuit of the utility model;

[0031] Figure 4 This is a structural diagram of another embodiment of the platform dynamic voltage adjustment circuit of the present invention.

[0032] Description of Figure Numbers:

[0033] 10. Power supply; 11. Power module; 12. Power distribution switch; 20. Main platform; 21. Normally open power domain; 22. Shutdown power domain; 23. Power consumption management module; 24. Other power domains.

[0034] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] The term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0039] The utility model provides a platform dynamic voltage adjustment circuit.

[0040] The platform dynamic voltage adjustment circuit can be applied to electronic devices, which can be handheld devices such as smart phones, cameras, etc., or vehicle-mounted devices such as driving recorders, navigators, etc., or smart wearable devices such as smart watches, smart glasses, etc. The electronic device can also be a fixed camera or a smart home device. Depending on the functions to be implemented, the functional modules provided in the electronic device are also different. The following embodiments of the present utility model are mostly described by taking the electronic device as a handheld camera or a driving recorder with a camera function as an example. The electronic device can be provided with an optical system, an infrared detector, an A / D conversion module, a D / A conversion module, a memory, an image sensor, a main platform and a display screen, etc.

[0041] If the electronic device is a driving recorder, during the day, an image sensor can capture video data in front of or around the vehicle and send it to the main platform. At night, an infrared detector can convert infrared radiation emitted by the measured object (thermal radiator) entering the optical system into a corresponding electrical signal and send the resulting electrical signal to the A / D conversion module. The A / D conversion module performs analog-to-digital conversion on the received electrical signal and sends the converted data as raw video data to the main platform. The main platform will perform appropriate data processing on the received video data stream and store and display the processed video data stream.

[0042] When the electronic device is a handheld camera, the image sensor can collect video data of the staff during the performance of the task, and send it to the main platform, so that the main platform will perform corresponding data processing on the received video data stream, and store and display the processed video data stream. When the handheld camera communicates with an external terminal, such as a cloud server, an information processing platform, etc., the processed video data stream can also be sent to the cloud server, information processing platform through a communication module set in the electronic device.

[0043] When an electronic device is in different operating states, for example, during filming, the FPGA, image sensor, and main platform are all in operation, while during display, the main platform and display screen are in operation. Accordingly, the main platform's load status varies during different operating states, and not all functional modules within the main platform need to be activated. The following uses a camera as an example. When the electronic device is a camera, the main platform can receive the video data stream captured by the camera of a handheld camera during a task execution and send this video data stream to the main platform. The main platform then processes the video data stream, such as by overlaying an on-screen menu, and then inputs it to the display screen for display. However, the inventors of this application discovered that in most practical applications of cameras, only the captured image needs to be processed, not displayed, and the camera menu does not need to be displayed. This means that the main platform does not need to send the captured image to the display screen, nor does it need to perform other processing such as overlaying an on-screen menu. This shows that in different operating situations, not all functions of the main platform are used when the camera is in use. If the main platform is always fully powered, the camera's power consumption will be excessively high.

[0044] In order to solve the above problems, the present invention proposes a platform dynamic voltage adjustment circuit, referring to Figure 1 In one embodiment of the present invention, the platform dynamic voltage adjustment circuit includes:

[0045] At least one power-adjustable power supply 11, wherein the power-adjustable power supply 11 is configured to output power-adjustable electric energy;

[0046] At least one switchable power supply 12, the power supply energy output by the switchable power supply 12 can be turned on / off;

[0047] The main platform 20 includes at least one normally-on power domain 21 and at least one turn-off power domain 22, wherein the power input end of the normally-on power domain 21 is connected to the power-adjustable power supply 11; and the power input end of the turn-off power domain 22 is connected to the turn-off power supply 12.

[0048] In this embodiment, the adjustable power supply 11 and the switchable power supply 12 can receive power from the battery and / or the charging management module to power the main platform 20, memory, display screen, image sensor, and other devices. The main platform 20 can perform data processing, such as processing video data streams, and can also control functional modules. For example, based on user needs, the main platform 20 can output corresponding control signals to control the operation of other functional modules in the electronic device. For example, in a handheld camera, when the user needs to activate the audio and video recording function, the corresponding user operation command can be output through a key, voice, gesture, etc., and the main platform 20 can control the image sensor and audio pickup device to start working in response to the operation command. When the user needs to view the recorded audio and video, the corresponding user operation command can be output through a key, voice, gesture, etc., and the main platform 20 can control the display screen, audio devices, etc. to start working in response to the operation command. When other functions such as audio and video are not needed, the main platform 20 can operate in standby mode or even control the handheld camera to shut down.

[0049] In an optional embodiment, the main platform 20 is a system-on-chip (SOC). Of course, in other embodiments, the main platform 20 can also be a digital signal processor (DSP), or other multifunctional platforms, which are not limited here. The main platform 20 can be provided with multiple power domains. As an area within the platform, the power domain can contain a group of related circuits and logics. Each power domain can independently perform power control, that is, each power domain can have its own power supply and control strategy to achieve corresponding power consumption management. In each working state of the main platform 20, the load state is different, and the required power consumption is different. Some power domains within the platform that implement predetermined functions may not start working when the corresponding functions are not started. Therefore, according to the number of power domains, a corresponding number of power supplies 10 can be set, and each power supply 10 or each plurality of power supplies can supply power to one power domain.

[0050] The main platform 20 can be provided with a power domain that requires continuous power supply, namely, an always-on power domain 21, and a power domain that can be turned on and off, namely, a shut-off power domain 22. Correspondingly, the power supply 10 can be provided with an adjustable-power power supply 11. The adjustable-power power supply 11 supplies power to the always-on power domain 21 that requires continuous power supply. The adjustable-power power supply 11 can output adjustable-power power to the always-on power domain 21. In this way, when the always-on power domain 21 has a high power demand, the adjustable-power power supply 11 supplies power to the always-on power domain 21 at a relatively high voltage. When the always-on power domain 21 has a low power demand, the adjustable-power power supply 11 supplies power to the always-on power domain 21 at a relatively low voltage. The power supply 10 can also be provided with a turnable power supply 12, and the power energy output by the turnable power supply 12 can be turned on / off. In this way, when the turnable power domain 22 needs power supply, the turnable power supply 12 can supply power to the turnable power domain 22, and when the turnable power domain 22 does not need power supply, the turnable power supply 12 can also stop supplying power to the turnable power domain 22.

[0051] Depending on the working state of the main platform 20, the power supply 10 can be controlled to adjust the voltage output. For example, when standby is required, the power supply 10 can be controlled to shut down the power of other power domains and adjust the amount of power output to the power domain in standby mode. The power supply 10 is controlled to only provide the power required for standby mode to the power domain in standby mode. When normal operation is resumed, the amount of power output to the power domain in operation is adjusted again, and the power supply 10 is controlled to provide the power required for operation to the power domain in operation. When some intelligent functions in the main platform 20 do not need to be started, the power supply 10 can be controlled to stop supplying power domains related to the intelligent functions, such as the intelligent BANK power domain. When the intelligent functions need to be turned on, the power supply 10 can be controlled to turn on, thereby reducing the power consumption of the entire platform.

[0052] Reference Figure 2 In an optional embodiment, the main platform 20 further includes:

[0053] A power consumption management module 23, wherein a first control terminal of the power consumption management module 23 is connected to a controlled terminal of the adjustable power supply 11; a second control terminal of the power consumption management module 23 is connected to a controlled terminal of the switchable power supply 12; the power consumption management module 23 is configured to output a PWM signal with an adjustable duty cycle to the adjustable power supply 11, so that the adjustable power supply 11 outputs power of a corresponding magnitude to a power input terminal VCC of the normally-on power domain 21;

[0054] The power consumption management module 23 is further configured to control the switchable power supply 12 to supply power to / stop supplying power to the switchable power domain.

[0055] The power consumption management module 23 can output a PWM signal of a corresponding duty cycle to the power adjustable power supply 11 according to the load operation state of the shut-down power domain 21, so that the power supply 10 outputs power energy of a corresponding magnitude to the power input terminal VCC of the normally-on power domain 21; and

[0056] The power consumption management module 23 can also control the switchable power supply 12 to supply power to / stop supplying power to the switchable power domain 22 according to whether the switchable power domain 22 is working or not.

[0057] It is understandable that multiple power domains may be in different operating states at different times, and therefore may require power or not, and the amount of power supplied may also vary. A power domain may include a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processor (DSP), an audio system, a video system, a memory, a display system, and the like. Within these power domains, the multiple power domains can be divided into a shutoff power domain 22 and a normally-on power domain 21, depending on the operating state of the electronic device. The multiple power domains have their own different power supplies 10, and the power consumption management module 23 can control the voltage level, power switch, and the like of each power domain according to application requirements.

[0058] The always-on power domain 21 can be a central processing unit (CPU). As a primary component of an electronic device, the CPU needs to receive and process data, send control signals, and so on, and therefore needs to be in a constant operating state. Therefore, the power supply 10 can be controlled to continuously supply power to the always-on power domain 21, such as the CPU. Furthermore, based on the power demand of the always-on power domain 21, the power-adjustable power supply 11 outputs power of a corresponding voltage to continuously supply power to the always-on power domain 21. For example, during standby mode, when power demand is low, the power-adjustable power supply 11 can output a lower power supply to the always-on power domain 21 to maintain the standby operating requirements of the always-on power domain 21. During high-load operation, when power demand is high, the power-adjustable power supply 11 can output a higher power supply to the always-on power domain 21 to ensure its operating requirements. When the load decreases, the power-adjustable power supply 11 can also reduce the power supply output to the always-on power domain 21, thereby providing an adaptive power supply based on the power demand of the always-on power domain 21. The power domain 22 that can be turned off can include a graphics processor (GPU), a digital signal processor (DSP), a communication baseband system, an audio system, a video system, a display system, and the like. The power supply 10 of the power domain 22 can be turned on / off depending on whether the function is enabled. For example, when the electronic device does not need to enable functions such as display, communication, and image processing, these power domains do not need to be enabled. In this case, the power supply 10 can be controlled to disconnect the electrical connection between the power input terminal VCC of the power domain 22 that can be turned off, thereby controlling the power supply 10 to stop supplying power to these power domains 22. When functions such as display and image processing need to be enabled, the power supply 10 can be controlled to disconnect the electrical connection between the power input terminal VCC of the power domain 22 that can be turned off, thereby controlling the power supply 10 to supply power to these power domains that can be turned off.

[0059] The power consumption management module 23 can be a CPU or a controller specifically used to implement power management of each power domain. The power consumption management module 23 can control whether each power supply 10 is on or off according to the different working states of the electronic device, and control the power supply 10 to adjust the output voltage.

[0060] Continue to refer to Figure 2 Of course, in other embodiments, the platform can also be provided with other power domains 24. The power supply of other power domains 24 can be continuous like the normally-on power domain 21, or it can be shut off like the shutoff power domain 22, or it can be a combination of the two, that is, it can be continuous or it can be shut off. There is no limitation here.

[0061] Reference Figure 2 and Figure 3 , in an optional embodiment, the platform has a high-load operation state and an idle state;

[0062] In the high-load operation state, the power consumption management module 23 outputs a PWM signal with a first duty cycle to the power supply 10 to control the power supply 10 to output at a first voltage;

[0063] In the idle state, the power consumption management module 23 outputs a PWM signal with a second duty cycle to the power supply 10 to control the power supply 10 to output a second voltage; wherein the first duty cycle is greater than the second duty cycle.

[0064] In this embodiment, the high-load operation state can be the state in which the platform runs a highly complex program, or the state in which the main platform 20 implements multiple functions, such as the image acquisition function, display function, communication function and other functions of the handheld device are started simultaneously, and the main platform 20 is in this working state. The idle state can be the working state when the platform is in standby state, sleep state, etc. Depending on whether the platform is in a high-load operation state or an idle state, the power consumption management module 23 can output PWM signals with different duty cycles to the power supply 10 to adjust the voltage output of the power supply 10. The power consumption management module 23 outputs a PWM signal with a first duty cycle to the power supply 10 to increase the output voltage of the power supply 10, and outputs a PWM signal with a second duty cycle to the power supply 10 to reduce the output voltage of the power supply 10.

[0065] Optionally, taking the CPU as a shut-down power domain 21 as an example, the CPU needs to work continuously, so the power supply to the CPU is always needed. However, the power supply voltage fluctuates greatly with the performance of the CPU. For example, when the CPU is running a high-complexity program and is currently running under high load, the PWM duty cycle output to the power supply 10 can be increased, and a PWM signal with a first duty cycle is output to the power supply 10, and the power supply 10 outputs the increased voltage, thereby achieving the stability of the platform. When the CPU is running a high-complexity program and the current platform is in an idle state, the PWM duty cycle output to the power supply 10 can be lowered, and a PWM signal with a second duty cycle is output to the power supply 10, and the power supply 10 outputs the decreased voltage. In this way, the power consumption of the CPU can be reduced, thereby achieving a reduction in the overall output voltage and a reduction in the power consumption of the platform power supply end.

[0066] Reference Figure 2 and Figure 4 In an optional embodiment, the power consumption management module 23 controls the power supply 10 to supply power to the shut-down power domain 22 according to the received function start control signal;

[0067] The power consumption management module 23 controls the power supply 10 to stop supplying power to the power domain 22 that can be shut down according to the received function shutdown control signal.

[0068] In this embodiment, the power consumption management module 23 can be controlled by the CPU of the main platform 20. The CPU can output the function shutdown control signal or function startup control signal received by the user through buttons, gestures, voice, etc. to the power consumption management module 23 to control the operation of the power consumption management module 23. Alternatively, the power consumption management module 23 is directly controlled by the function shutdown control signal or function startup control signal triggered by the user through buttons, gestures, voice, etc., and controls whether the power supply 10 supplies power. Depending on whether some functions in the platform are started or not, the power consumption management module 23 can control whether the power supply 10 supplied by the power domain that implements the corresponding function is working. When the corresponding function is not started, the power consumption management module 23 controls the corresponding power supply 10 to shut off the power supply to the power domain 22 that can be shut off. When the corresponding function is started, the power consumption management module 23 controls the corresponding power supply 10 to start the power supply to the power domain 22 that can be shut off.

[0069] Optionally, taking the activation of the intelligent function of an electronic device as an example, when the platform does not need the intelligent function, the power supply 10 for the intelligent BANK power domain in the platform can be cut off, and when the intelligent function needs to be activated, the power supply 10 can be controlled to activate the power supply. Taking the activation of the display function in an electronic device as an example, when the display function is not needed, the power consumption management module 23 can turn off the power supply 10 corresponding to the power domain that was previously turned off for display to save energy according to the received function shutdown control signal. When the display function needs to be activated, the power consumption management module 23 can turn on the power supply 10 corresponding to the power domain that was previously turned off for display to realize the corresponding function according to the received function shutdown control signal. In this way, by cutting off the power supply of the inoperative power domain, it is possible to prevent the unused circuits from generating static power consumption, that is, by controlling the power switch, the power consumption of the entire platform can be reduced.

[0070] Reference Figure 2 and Figure 3 In an optional embodiment, the power adjustable power supply 11 includes:

[0071] The power module 111 has a feedback terminal FB connected to the control terminal PWM of the power management module 23 ; the power module 111 outputs power supply energy of corresponding magnitude according to the PWM signal output by the power management module 23 .

[0072] In this embodiment, the power module 111 is used to perform voltage reduction, filtering, isolation, and other processing on the connected power supply, and then output a corresponding amount of power supply energy to the power domain it supplies power to. The power module 111 has a power input terminal VCC for connecting to the power supply, a power output terminal VOUT for outputting power to the power domain, and a feedback terminal FB for connecting to the feedback signal. The PWM signal output by the power management controller is fed back to the power module 111 through the feedback terminal FB. The power module 111 outputs a corresponding amount of power supply energy based on the duty cycle of the received PWM signal, thereby achieving a high output voltage when the duty cycle is large and a low output voltage when the duty cycle is small. In this way, by adjusting the duty cycle, the power supply 10 can be controlled to adjust the amount of power supply energy output to the power domain, thereby reducing the power consumption of the CPU, and then achieving a reduction in the overall output voltage, thereby reducing the power consumption of the platform power supply end.

[0073] Reference Figure 2 and Figure 4 In an optional embodiment, the switchable power supply 12 includes:

[0074] The power module 121 is used to convert the incoming electrical energy into electrical energy and then output it;

[0075] The power distribution switch 122 has an input end connected to the power output end of the power module 121, an output end connected to the power input end VCC of the shutoff power domain 22, a controlled end EN of the power distribution switch 122 connected to the control end GPIO of the power consumption management module 23, and the power distribution switch 122 controls the connection between the power module 121 and the power input end VCC of the shutoff power domain 22 according to the received on / off signal output by the power consumption management module 23.

[0076] In this embodiment, the power module 121 can perform processing such as voltage reduction, filtering, and isolation on the connected power supply, and then output the corresponding amount of power supply energy to the power domain it supplies power to. The power distribution switch 122 is controlled by the power consumption management module 23. The power consumption management module 23 can output an on / off control signal to the power distribution switch 122 through the GPIO port, so that the power distribution switch 122 can control the connection and disconnection between the power module 121 and the corresponding power domain. When the power consumption management controller outputs an on control signal to the power distribution switch 122 through the GPIO port to control the power distribution switch 122 to be turned on, the power module 121 is electrically connected to the power input terminal VCC of the power domain 22 that can be turned off, and outputs power. When the power consumption management controller outputs a off control signal to the power distribution switch 122 through the GPIO port to control the power distribution switch 122 to be turned off, the power module 121 is electrically disconnected from the power input terminal VCC of the power domain 22 that can be turned off, and stops outputting power.

[0077] The present invention further provides an electronic device comprising the platform dynamic voltage adjustment circuit described above. The detailed structure of the platform dynamic voltage adjustment circuit can be found in the aforementioned embodiments and will not be further described here. It is understood that since the platform dynamic voltage adjustment circuit is used in the electronic device of the present invention, the embodiments of the electronic device of the present invention include all technical solutions of all embodiments of the platform dynamic voltage adjustment circuit described above, and the technical effects achieved are identical, and will not be further described here.

[0078] In an optional embodiment, the electronic device is a handheld device;

[0079] The electronic device further includes a battery, which is connected to the power supply 10 in the platform dynamic voltage adjustment circuit.

[0080] In this embodiment, the electronic device can be a handheld device, such as a smart phone, a camera, etc., or a vehicle-mounted device, such as a driving recorder, a navigator, etc., or a smart wearable device, such as a smart watch, smart glasses, etc. The electronic device can also be a fixed camera, or a smart home device, etc. Depending on the functions implemented, the functional modules provided in the electronic device are also different. The following embodiments of the present utility model are mostly described by taking the electronic device as a handheld camera or a driving recorder with a camera function as an example. The handheld device can use a battery to store energy and supply power. The handheld device can also be provided with a charging circuit, a power manager, etc. to manage the charging and discharging of the battery.

[0081] In an optional embodiment, the electronic device further includes a functional module, and the functional module is connected to the main platform 20 .

[0082] In this embodiment, the functional modules provided may be different depending on the functions implemented by the electronic device. For example, when the electronic device is an image acquisition device, the electronic device may be provided with functional modules such as an optical system, an infrared detector, an A / D conversion module, a D / A conversion module, a memory, an image sensor, a main platform 20 and a display screen. Of course, the electronic device may also be provided with more or fewer functional modules, which is not limited here.

[0083] The above description is merely an optional embodiment of the present invention and does not limit the scope of application of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of application protection of the present invention.

Claims

1. A platform dynamic voltage adjustment circuit, characterized in that: include: At least one power-adjustable power supply, wherein the power-adjustable power supply is configured to output power-adjustable electrical energy; At least one switchable power supply, the power energy output by the switchable power supply being switchable on / off; A main platform, the main platform includes at least one normally-on power domain and at least one turn-off power domain, the power input end of the normally-on power domain is connected to the power-adjustable power supply; the power input end of the turn-off power domain is connected to the turn-off power supply.

2. The platform dynamic voltage adjustment circuit according to claim 1, wherein: The main platform also includes: A power consumption management module, wherein a first control end of the power consumption management module is connected to a controlled end of the power-adjustable power supply; a second control end of the power consumption management module is connected to a controlled end of the power supply that can be turned off; the power consumption management module is configured to output a PWM signal with an adjustable duty cycle to the power-adjustable power supply, so that the power-adjustable power supply outputs power of corresponding magnitude to the power input end of the normally-on power domain; The power consumption management module is further configured to control the switchable power supply to supply power to / stop supplying power to the switchable power domain.

3. The platform dynamic voltage adjustment circuit according to claim 2, wherein: The platform has a high-load operation state and an idle state; In the high-load operation state, the power consumption management module outputs a PWM signal with a first duty cycle to the power adjustable power supply to control the power adjustable power supply to output a first voltage; In the idle state, the power consumption management module outputs a PWM signal with a second duty cycle to the power adjustable power supply to control the power adjustable power supply to output a second voltage; wherein the first duty cycle is greater than the second duty cycle.

4. The platform dynamic voltage adjustment circuit according to claim 2, wherein: The power consumption management module controls the power adjustable power supply to supply power to the power domain that can be turned off according to the received function start control signal; The power consumption management module controls the power adjustable power supply to stop supplying power to the power-off domain according to the received function shutdown control signal.

5. The platform dynamic voltage adjustment circuit according to claim 2, wherein: The power adjustable power supply comprises: A power supply module, wherein the feedback end of the power supply module is connected to the control end of the power consumption management module; the power supply module outputs power supply energy of corresponding magnitude according to the PWM signal output by the power consumption management module.

6. The platform dynamic voltage adjustment circuit according to claim 2, wherein: The switchable power supply comprises: The power module is used to convert the incoming electrical energy into electrical energy and then output it; A power distribution switch, wherein the input end of the power distribution switch is connected to the power output end of the power module, the output end of the power distribution switch is connected to the power input end of the power domain that can be shut off, and the controlled end of the power distribution switch is connected to the control end of the power consumption management module; the power distribution switch controls the connection between the power module and the power input end of the power domain that can be shut off according to the on / off signal output by the power consumption management module.

7. The platform dynamic voltage adjustment circuit according to any one of claims 1 to 6, wherein: The main platform is a system-level platform.

8. An electronic device, characterized in that: The electronic device comprises the platform dynamic voltage adjustment circuit according to any one of claims 1 to 7.

9. The electronic device according to claim 8, wherein The electronic device is a handheld device; The electronic device further includes a battery, which is connected to the power supply in the platform dynamic voltage adjustment circuit.

10. The electronic device according to claim 8, wherein The electronic device further includes a functional module, and the functional module is connected to the main platform.

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