CN117458867A - Dynamic voltage frequency adjustment circuit and electronic equipment - Google Patents

Dynamic voltage frequency adjustment circuit and electronic equipment Download PDF

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Publication number
CN117458867A
CN117458867A CN202311459748.3A CN202311459748A CN117458867A CN 117458867 A CN117458867 A CN 117458867A CN 202311459748 A CN202311459748 A CN 202311459748A CN 117458867 A CN117458867 A CN 117458867A
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CN
China
Prior art keywords
conversion circuit
voltage conversion
voltage
switch
circuit
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CN202311459748.3A
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Chinese (zh)
Inventor
廖兴保
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to CN202311459748.3A priority Critical patent/CN117458867A/en
Publication of CN117458867A publication Critical patent/CN117458867A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/36—Means for starting or stopping converters

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Sources (AREA)

Abstract

The application discloses a dynamic voltage frequency adjustment circuit and electronic equipment, belongs to the technical field of communication. The circuit of the embodiment of the application comprises: the first voltage conversion circuit supplies power to a target load of the main control integrated circuit through a first passage, and a first switch is arranged on the first passage; the second voltage conversion circuit supplies power to a target load of the main control integrated circuit through a second path, and a second switch is arranged on the second path; a control unit capable of performing at least one of the following based on a state of the target load: the method comprises the steps that a first control signal is sent to a first voltage conversion circuit through a control unit and a port of the first voltage conversion circuit, and the working state of the first voltage converter is controlled; a second control signal is sent to the second voltage conversion circuit through the power management interface, and the working state of the second voltage converter is controlled; the switching state of the first switch and/or the second switch is controlled.

Description

Dynamic voltage frequency adjustment circuit and electronic equipment
Technical Field
The application belongs to the technical field of communication, and particularly relates to a dynamic voltage frequency adjustment circuit and electronic equipment.
Background
As mobile portable devices should be able to be used more and more widely, new generation mobile portable devices will provide more functions than previous generation products, and portable devices have evolved from devices that are solely used for talking to multimedia devices, such as having the functions of photographing, browsing video clips, watching television, playing 3D games, etc. In this way, more and more powerful functions result in greater power consumption.
The current technology of dynamic voltage frequency scaling (Dynamic Voltage Frequency Scaling, DVFS) is used to reduce the power consumption of the system. The DVFS dynamically adjusts the operating clock frequency and voltage of the chip (for the same chip, the higher the frequency, the higher the voltage required), thereby achieving the goal of energy conservation.
However, existing DVFS voltage regulation is slow to respond to constantly changing system voltage requirements.
Disclosure of Invention
The embodiment of the application aims to provide a dynamic voltage frequency adjustment circuit and electronic equipment, which can solve the problem of slow voltage adjustment of the existing DVFS.
In a first aspect, embodiments of the present application provide a dynamic voltage frequency adjustment circuit, including:
the first voltage conversion circuit supplies power to a target load of the main control integrated circuit through a first passage, and a first switch is arranged on the first passage;
the second voltage conversion circuit supplies power to a target load of the main control integrated circuit through a second path, and a second switch is arranged on the second path;
a control unit capable of performing at least one of the following based on a state of the target load:
the control unit and the port of the first voltage conversion circuit are used for sending a first control signal to the first voltage conversion circuit to control the working state of the first voltage converter;
a second control signal is sent to the second voltage conversion circuit through a power management interface, and the working state of the second voltage converter is controlled;
controlling a switching state of the first switch and/or the second switch;
the voltage regulation speed of the first voltage conversion circuit is larger than that of the second voltage conversion circuit.
Optionally, the first voltage conversion circuit is connected with the second voltage conversion circuit, and the first voltage conversion circuit receives a third control signal sent by the second voltage conversion circuit;
the activation of the first voltage conversion circuit is controlled by the first control signal or the third control signal.
Optionally, the third control signal is a digital signal and is high level if the output current of the second voltage conversion circuit is greater than a specific switching threshold.
Optionally, the control unit is further configured to feed back a supply voltage of the master integrated circuit to the first voltage conversion circuit through the ports of the control unit and the first voltage conversion circuit.
Optionally, the dynamic voltage frequency adjustment circuit further includes:
and the charge pump is connected with the first voltage conversion circuit.
Optionally, the first path includes a first inductor and a first capacitor, a first end of the first inductor is connected with a first voltage conversion circuit, a second end of the first inductor is connected with a first end of the first capacitor, a second end of the first capacitor is connected with one end of the first switch, and the other end of the first switch is connected with the control unit;
the second path comprises a second inductor and a second capacitor, wherein the first end of the second inductor is connected with the second voltage conversion circuit, the second end of the second inductor is connected with the first end of the second capacitor, the second end of the second capacitor is connected with one end of the second switch, and the other end of the second switch is connected with the control unit.
Optionally, the first voltage conversion circuit and the first path are both located in the master integrated circuit; or,
the first channel is positioned in the main control integrated circuit, and the first voltage conversion circuit is independent of the main control integrated circuit.
Optionally, the first voltage conversion circuit and the second voltage conversion circuit are both located on a power management integrated circuit.
In a second aspect, embodiments of the present application provide an electronic device comprising a dynamic voltage frequency adjustment circuit as described above. Optionally, in the case that the target load is plural, each target load corresponds to one first voltage conversion circuit and one second voltage conversion circuit.
In a third aspect, an embodiment of the present application provides a control method for dynamic voltage frequency adjustment, including:
based on the state of the target load of the master integrated circuit, at least one of the following is performed:
a first control signal is sent to a first voltage conversion circuit to control the working state of the first voltage converter;
sending a second control signal to a second voltage conversion circuit to control the working state of the second voltage converter;
controlling the switching state of the first switch and/or the second switch;
the first switch is a switch on a first path, and the first voltage conversion circuit supplies power to the target load through the first path; the second switch is a switch on a second path through which the second voltage conversion circuit supplies power to the target load.
Optionally, the method further comprises:
and feeding back the power supply voltage of the master control integrated circuit to the first voltage conversion circuit. In the embodiment of the application, the dynamic voltage frequency adjustment circuit can control the first voltage conversion circuit and/or the second voltage conversion circuit to supply power to the target load through the control unit, and because the voltage adjustment speeds of the first voltage conversion circuit and the second voltage conversion circuit are different, the voltage adjustment speed of the first voltage conversion circuit is larger than that of the second voltage conversion circuit, the quick DVFS or the slow DVFS can be started aiming at the current state of the target load, the problem that the response of the DVFS is not timely is avoided, redundant voltage is effectively eliminated, and the power consumption waste is avoided.
Drawings
FIG. 1 is a schematic circuit diagram of a low frequency switching power supply;
FIG. 2 is a schematic circuit diagram of a high frequency switching power supply;
FIG. 3 is a schematic diagram of a dynamic voltage frequency adjustment circuit according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an application of the dynamic voltage frequency adjustment circuit according to the embodiment of the present application;
FIG. 5 is a second application diagram of the dynamic voltage frequency adjustment circuit according to the embodiment of the present application;
FIG. 6 is a third application diagram of the dynamic voltage frequency adjustment circuit according to the embodiment of the present application;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
For ease of understanding, some of the matters related to the embodiments of the present application are described below:
1. dynamic voltage frequency adjustment technique
DVFS is a real-time voltage and frequency adjustment technique, and dynamically adjusts the operating clock frequency and voltage of a chip (for the same chip, the higher the frequency, the higher the required voltage) according to different demands of an application program operated by the chip on computing power, thereby achieving the purpose of energy saving.
The power consumption in the circuit in the chip active state can be mainly divided into dynamic power consumption and static power consumption: p (P) total ＝∑(CV 2 αf+P static )。
Wherein C is the capacitance of the load capacitor, V is the working voltage, alpha is the turnover rate at the current frequency, f is the working frequency, CV 2 αf is dynamic consumption, P static Is static consumption.
2. Pressure-reducing (Buck) chip
Buck chips are common direct current-direct current (DC-DC) converters, which control the output voltage by controlling the on time of a switching tube to convert a high input voltage into a low output voltage. The Buck chip can be divided into a low-frequency Buck chip and a high-frequency Buck chip according to the switching frequency of the Mos tube. As shown in fig. 1, the low-frequency Buck chip operates at a low frequency (e.g., 0.1MHz to several MHz), and the circuit has a power DVFS switching speed of tens of us due to its low frequency (inductance uH) inductance and large capacitance input and output capacitances (tens of uF or greater). As shown in FIG. 2, the working frequency of the high-frequency Buck chip can reach more than tens of MHz, the circuit comprises a high-frequency (small inductance value nH) inductor and a small capacitance value (about 0.1 uF) capacitor, and the switching speed of the power supply DVFS can be in ns level. Buck chips can also be understood as switching power supplies.
When two or more low-frequency Buck chips provide power to meet load requirements, the power supply DVFS voltage regulation is usually connected through a power management interface, the voltage regulation speed is limited by the transmission speed of the power management interface and the switching frequency and the operating loop regulation stable voltage speed of an external power management chip, the voltage regulation time is longer, and more power loss still exists.
The dynamic voltage frequency adjustment circuit and the electronic device provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings by means of specific embodiments and application scenarios thereof.
As shown in fig. 3, a dynamic voltage frequency adjustment circuit according to an embodiment of the present application includes:
the first voltage conversion circuit supplies power to a target load of the main control integrated circuit through a first passage, and a first switch is arranged on the first passage;
the second voltage conversion circuit supplies power to a target load of the main control integrated circuit through a second path, and a second switch is arranged on the second path;
a control unit capable of performing at least one of the following based on a state of the target load:
the control unit and the port of the first voltage conversion circuit are used for sending a first control signal to the first voltage conversion circuit to control the working state of the first voltage converter;
a second control signal is sent to the second voltage conversion circuit through a power management interface, and the working state of the second voltage converter is controlled;
controlling a switching state of the first switch and/or the second switch;
the voltage regulation speed of the first voltage conversion circuit is larger than that of the second voltage conversion circuit.
In this way, the dynamic voltage frequency adjustment circuit of the embodiment of the application can control the first voltage conversion circuit and/or the second voltage conversion circuit to supply power to the target load through the control unit, and because the voltage adjustment speeds of the first voltage conversion circuit and the second voltage conversion circuit are different, the voltage adjustment speed of the first voltage conversion circuit is greater than that of the second voltage conversion circuit, the quick DVFS or the slow DVFS can be started aiming at the current state of the target load, the problem that the DVFS is not timely in response is avoided, redundant voltage is effectively eliminated, and the power consumption waste is avoided.
The control unit is a component on a System on Chip (SoC).
It should be appreciated that the first control signal transmitted through the port to which the control unit is connected to the first voltage converting circuit is an analog signal. For the first voltage conversion circuit, the control unit can generate an analog signal (such as a high-precision analog voltage Ref in) in real time based on the state of the target load, so as to control the starting and the closing of the first voltage conversion circuit in real time. Wherein, because the analog signal overcomes the transmission speed limit of the power management interface, the response time of the first voltage conversion circuit is further improved, and faster DVFS adjustment is provided. And the control unit and the second control signal transmitted by the power management interface by the second voltage conversion circuit are digital signals. The power management interface may be a system power management (System Power Management Interface, SPMI) interface or an Inter-Integrated Circuit, I2C interface, or the like.
Of course, the first voltage conversion circuit and the control unit can also perform signal transmission through the power management interface.
It should be understood that in this embodiment, the load corresponds to one power domain of the SoC, and each power domain is set based on functions of a large/small core central processing unit (Central Processing Unit, CPU), a Phase-Locked loop (PLL), a storage device, a peripheral device, and the like implemented on the SoC.
Thus, the target load is a target power domain supplied by the first voltage conversion circuit and/or the second voltage conversion circuit. The states of the target loads may be a light load (low clock frequency) and a heavy load (manuscript clock frequency) determined based on the clock frequency. In this way, after determining whether the target load is currently a light load or a heavy load, the control unit controls the power supply to the target load by the first voltage conversion circuit and/or the second voltage conversion circuit to be realized.
Alternatively, the first voltage conversion circuit is a high frequency BUCK (BUCK) chip and the second voltage conversion circuit is a low frequency BUCK (BUCK) chip.
In this embodiment, the first voltage conversion circuit may employ a high frequency Integrated Voltage Regulator (IVR) developed in a Complementary Metal Oxide Semiconductor (CMOS) process, which fully integrates all power discrete components. The IVR frequency is high, and Vin is required to be smaller than 3.3V by adopting a CMOS process.
Optionally, as shown in fig. 3, the first path includes a first inductor L1 and a first capacitor C1, a first end of the first inductor L1 is connected to the first voltage conversion circuit, a second end of the first inductor L1 is connected to the first end of the first capacitor C1, a second end of the first capacitor C1 is connected to one end of the first switch S1, and the other end of the first switch S1 is connected to the control unit;
the second path comprises a second inductor L2 and a second capacitor C2, wherein a first end of the second inductor L2 is connected with the second voltage conversion circuit, a second end of the second inductor L2 is connected with a first end of the second capacitor C2, a second end of the second capacitor C2 is connected with one end of the second switch S2, and the other end of the second switch S2 is connected with the control unit.
Wherein the control unit may control the switching state (on or off) of the first switch S1 by the third control signal, and the control unit may control the switching state (on or off) of the second switch S2 by the fourth control signal.
In this way, after determining whether the target load is currently a light load or a heavy load, the control unit can control the power supply to the target load by the first voltage conversion circuit and/or the second voltage conversion circuit by generating and transmitting a corresponding control signal to the different switch. For example, in a light load scenario, generating a fourth control signal and a fifth control signal, wherein the fourth control signal controls the first switch to be opened, and the fifth control signal controls the second switch to be closed; the heavy load generates a fourth control signal and a fifth control signal, the fourth control signal controls the first switch to be closed, the fifth control signal controls the second switch to be opened, and after the second voltage conversion circuit finishes DVFS voltage adjustment, the fifth control signal controls the second switch to be closed.
Further, optionally, in this embodiment, the first control signal is active when the supply voltage of the target load is greater than a specific threshold, that is, the first control signal controls the start of the BUCK1 when the supply voltage of the target load is greater than a preset threshold.
The operating states of the first voltage conversion circuit and the second voltage conversion circuit may include starting up or closing (stopping operation) a corresponding target voltage, which is an operating voltage for supplying power to the target load. The first control signal can control the starting and the closing of the first voltage conversion circuit and also indicate the target voltage of the first voltage conversion circuit; the second control signal can control the starting and the closing of the second voltage conversion circuit and also indicate the target voltage of the second voltage conversion circuit. Of course, the operating states of the first voltage converting circuit and the second voltage converting circuit are not limited to the above, and may further include a current limiting mode, where the current for supplying power to the load is smaller than a set current value (e.g. 0.6A).
Optionally, in this embodiment, the first voltage conversion circuit is connected to the second voltage conversion circuit, and the first voltage conversion circuit receives a third control signal sent by the second voltage conversion circuit; the activation of the first voltage conversion circuit is controlled by the first control signal or the third control signal.
That is, in addition to the first voltage conversion circuit outputting the first control signal to control the first voltage conversion circuit to start, the first voltage conversion circuit can also control the first voltage conversion circuit to start by outputting the third control signal (e.g., BUCK_EN).
Optionally, the third control signal is a digital signal and is high level if the output current of the second voltage conversion circuit is greater than a specific switching threshold.
Wherein the specific switching threshold is a threshold set for light load and heavy load switching. The third control signal BUCK_EN is high if it is greater than the particular switching threshold, i.e., BUCK_EN is active high. In this way, the first voltage conversion circuit may be activated in combination with the first control signal and the third control signal.
Optionally, the control unit is further configured to feed back a supply voltage of the master integrated circuit to the first voltage conversion circuit through the ports of the control unit and the first voltage conversion circuit.
Therefore, the first voltage conversion circuit can monitor the power supply voltage of the target load in real time, and timely control the first switch, the second switch, the first voltage conversion circuit and the second voltage conversion circuit, so that the purpose of saving power consumption is achieved. The supply voltage of the target load can also be understood as SoC supply voltage.
Optionally, the dynamic voltage frequency adjustment circuit further includes:
and the charge pump is connected with the first voltage conversion circuit.
Here, a Charge pump (Charge pump) is used to power the first voltage conversion circuit. As shown in fig. 4-6, the Charge pump can be 1/2Charge pump, and the Charge pump is also connected with a capacitor C3. The first voltage conversion circuit is powered by 1/2Charge pump when in use. Of course, the first voltage conversion circuit can also be used for reducing voltage and supplying power through the voltage conversion circuit.
Further optionally, in an embodiment of the present application, the first voltage conversion circuit and the first path are both located in the master integrated circuit; or,
the first channel is positioned in the main control integrated circuit, and the first voltage conversion circuit is independent of the main control integrated circuit.
That is, an alternative implementation, as shown in fig. 4, the first voltage conversion circuit, the first path, the first switch, the second switch, and the control unit are all integrated on the SoC. In an alternative embodiment, as shown in fig. 5, the first voltage conversion circuit and the SoC are independent from each other, and only the first path, the first switch, the second switch and the control unit are integrated on the SoC.
Optionally, in this embodiment, the first voltage conversion circuit and the second voltage conversion circuit are both located on a power management integrated circuit.
That is, in an alternative implementation, as shown in fig. 6, only the first path, the first switch, the second switch, and the control unit are integrated on the SoC, and the first voltage conversion circuit and the second voltage conversion circuit are integrated on the same Power Management Integrated Circuit (PMIC).
Next, referring to fig. 3, taking the first voltage conversion circuit as a BUCK1 and the second voltage conversion circuit as a BUCK2 as an example, the working procedure of the dynamic voltage frequency adjustment circuit is described in conjunction with a specific scenario:
in a light load (low clock frequency) scene, the control unit transmits a fourth control signal to control the enabling BUCK2 through a power management interface, the power management interface configures a power supply voltage (the fourth control signal indicates a target voltage) such as SMPI or IIC, S2 is closed, S1 is opened, and BUCK2 is started to ensure high-efficiency power supply of the SoC; in a heavy load (high clock frequency) scene, the SoC controls the BUCK1 to start through a first control signal Ref in, S1 is closed and S2 is opened, the BUCK1 rapidly responds to supply power to the SoC, meanwhile, the control unit controls the BUCK2 to start through a second control signal, after the BUCK2 finishes DVFS voltage regulation, S2 is closed, and the BUCK1 and the BUCK2 simultaneously supply power to the SOC.
The control unit controls the start of BUCK1 through Ref in, S2 is opened, S1 is closed, BUCK1 rapidly responds to power for the SoC, meanwhile, the control unit controls the start of BUCK2 through a second control signal, after the BUCK2 finishes DVFS voltage regulation, S2 is closed, and BUCK1 and BUCK2 simultaneously supply power for the SoC; from a heavy load to a light load scene, the control unit controls the BUCK1 to start through Ref in, S2 is disconnected (S1 is still in a closed state), the BUCK1 rapidly responds to supply power to the SoC, meanwhile, the BUCK2 starts, after the BUCK2 finishes DVFS voltage regulation, S2 is closed, S1 is disconnected, and the BUCK2 supplies power to the SoC.
The BUCK1 monitors the power supply voltage of the SoC fed back by the control unit in real time. When the SoC power supply voltage is monitored to be larger than the preset threshold value, the control unit can read the working state of the BUCK1 through the power management interface with the BUCK1, then the BUCK2 is controlled to be closed or enter a current limiting mode through the second control signal, and at the moment, the current for supplying power to the load is mostly provided by the BUCK 1.
The working state of the BUCK1 is determined by a first control signal and a third control signal, and the first control signal controls the BUCK1 to start under the condition that the power supply voltage of a target load is larger than a preset threshold value; and controlling BUCK1 to start under the condition that the third control signal is larger than a specific switching threshold value.
If the current provided by the BUCK1 for supplying power to the load is lower than the set current value, the BUCK1 stops working, and the current for supplying power to the load is provided by the BUCK 2.
In summary, the dynamic voltage frequency adjustment circuit of the embodiment of the application can control the first voltage conversion circuit and/or the second voltage conversion circuit to supply power to the target load through the control unit, and because the voltage adjustment speeds of the first voltage conversion circuit and the second voltage conversion circuit are different, the voltage adjustment speed of the first voltage conversion circuit is greater than that of the second voltage conversion circuit, the quick DVFS or the slow DVFS can be started aiming at the current state of the target load, the problem that the response of the DVFS is not timely is avoided, redundant voltage is effectively eliminated, and the power consumption waste is avoided.
The embodiment of the application also provides electronic equipment, which comprises the dynamic voltage frequency adjustment circuit.
Optionally, in the case that the target load is plural, each target load corresponds to one first voltage conversion circuit and one second voltage conversion circuit.
That is, for a plurality of target loads, the electronic device is provided with a first voltage conversion circuit and a second voltage conversion circuit corresponding to each target load, and of course, includes a corresponding first path, second path, first switch and second switch to supply power to the plurality of target loads. For example, one PMIC may integrate multiple IVRs simultaneously.
The electronic device provided in this embodiment of the present application can implement each structure implemented by the embodiments of the dynamic voltage frequency adjustment circuit in fig. 3 to 6, and in order to avoid repetition, a description thereof is omitted here.
The embodiment of the application also provides a control method for dynamic voltage frequency adjustment, which comprises the following steps:
based on the state of the target load of the master integrated circuit, at least one of the following is performed:
a first control signal is sent to a first voltage conversion circuit to control the working state of the first voltage converter;
sending a second control signal to a second voltage conversion circuit to control the working state of the second voltage converter;
controlling the switching state of the first switch and/or the second switch;
the first switch is a switch on a first path, and the first voltage conversion circuit supplies power to the target load through the first path; the second switch is a switch on a second path through which the second voltage conversion circuit supplies power to the target load.
In this way, the control unit of the electronic device executes the control method for dynamic voltage frequency adjustment of the embodiment, and controls the first voltage conversion circuit and/or the second voltage conversion circuit to supply power to the target load, and since the voltage adjustment speeds of the first voltage conversion circuit and the second voltage conversion circuit are different, the voltage adjustment speed of the first voltage conversion circuit is greater than the voltage adjustment speed of the second voltage conversion circuit, the quick DVFS or the slow DVFS can be started according to the current state of the target load, the problem that the DVFS is not timely responsive is avoided, redundant voltage is effectively eliminated, and power consumption waste is avoided.
Optionally, the method further comprises:
and feeding back the power supply voltage of the master control integrated circuit to the first voltage conversion circuit.
Therefore, the first voltage conversion circuit can realize real-time monitoring of the power supply voltage of the target load by the power supply voltage fed back by the control unit, so that the first switch, the second switch, the first voltage conversion circuit and the second voltage conversion circuit can be controlled in time, and the purpose of saving power consumption is achieved. The supply voltage of the target load can also be understood as SoC supply voltage.
Alternatively, fig. 7 is a schematic hardware structure of an electronic device implementing an embodiment of the present application.
The electronic device 700 includes, but is not limited to: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.
Those skilled in the art will appreciate that the electronic device 700 may also include a power source (e.g., a battery) for powering the various components, which may be logically connected to the processor 710 via a power management system so as to perform functions such as managing charge, discharge, and power consumption via the power management system. The electronic device structure shown in fig. 7 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than shown, or may combine certain components, or may be arranged in different components, which are not described in detail herein.
The electronic device further includes a dynamic voltage frequency adjustment circuit, the dynamic voltage frequency adjustment circuit including:
the first voltage conversion circuit supplies power to a target load of the main control integrated circuit through a first passage, and a first switch is arranged on the first passage;
the second voltage conversion circuit supplies power to a target load of the main control integrated circuit through a second path, and a second switch is arranged on the second path;
a control unit capable of performing at least one of the following based on a state of the target load:
the control unit and the port of the first voltage conversion circuit are used for sending a first control signal to the first voltage conversion circuit to control the working state of the first voltage converter;
a second control signal is sent to the second voltage conversion circuit through a power management interface, and the working state of the second voltage converter is controlled;
controlling a switching state of the first switch and/or the second switch;
the voltage regulation speed of the first voltage conversion circuit is larger than that of the second voltage conversion circuit.
According to the electronic equipment, the first voltage conversion circuit and/or the second voltage conversion circuit can be controlled by the control unit to supply power to the target load through the dynamic voltage frequency adjustment circuit, and as the voltage adjustment speeds of the first voltage conversion circuit and the second voltage conversion circuit are different, the voltage adjustment speed of the first voltage conversion circuit is larger than that of the second voltage conversion circuit, so that the quick DVFS or the slow DVFS can be started aiming at the current state of the target load, the problem that the response of the DVFS is not timely is avoided, redundant voltage is effectively eliminated, and the power consumption waste is avoided.
Optionally, the first voltage conversion circuit is connected with the second voltage conversion circuit, and the first voltage conversion circuit receives a third control signal sent by the second voltage conversion circuit;
the activation of the first voltage conversion circuit is controlled by the first control signal or the third control signal.
Optionally, the third control signal is a digital signal and is high level if the output current of the second voltage conversion circuit is greater than a specific switching threshold.
Optionally, the control unit is further configured to feed back a supply voltage of the master integrated circuit to the first voltage conversion circuit through the ports of the control unit and the first voltage conversion circuit.
Optionally, the dynamic voltage frequency adjustment circuit further includes:
and the charge pump is connected with the first voltage conversion circuit.
Optionally, the first path includes a first inductor and a first capacitor, a first end of the first inductor is connected with a first voltage conversion circuit, a second end of the first inductor is connected with a first end of the first capacitor, a second end of the first capacitor is connected with one end of the first switch, and the other end of the first switch is connected with the control unit;
the second path comprises a second inductor and a second capacitor, wherein the first end of the second inductor is connected with the second voltage conversion circuit, the second end of the second inductor is connected with the first end of the second capacitor, the second end of the second capacitor is connected with one end of the second switch, and the other end of the second switch is connected with the control unit.
Optionally, the first voltage conversion circuit and the first path are both located in the master integrated circuit; or,
the first channel is positioned in the main control integrated circuit, and the first voltage conversion circuit is independent of the main control integrated circuit.
Optionally, the first voltage conversion circuit and the second voltage conversion circuit are both located on a power management integrated circuit.
It should be appreciated that in embodiments of the present application, the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042, with the graphics processor 7041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.
The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 709 may include volatile memory or nonvolatile memory, or the memory 709 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 709 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.
Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 710.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims (13)

1. A dynamic voltage frequency adjustment circuit, comprising:
the first voltage conversion circuit supplies power to a target load of the main control integrated circuit through a first passage, and a first switch is arranged on the first passage;
the second voltage conversion circuit supplies power to a target load of the main control integrated circuit through a second path, and a second switch is arranged on the second path;
a control unit capable of performing at least one of the following based on a state of the target load:
the control unit and the port of the first voltage conversion circuit are used for sending a first control signal to the first voltage conversion circuit to control the working state of the first voltage converter;
a second control signal is sent to the second voltage conversion circuit through a power management interface, and the working state of the second voltage converter is controlled;
controlling a switching state of the first switch and/or the second switch;
the voltage regulation speed of the first voltage conversion circuit is larger than that of the second voltage conversion circuit.
2. The dynamic voltage frequency adjustment circuit of claim 1, wherein the first voltage conversion circuit is connected to the second voltage conversion circuit and the first voltage conversion circuit receives a third control signal sent by the second voltage conversion circuit;
the activation of the first voltage conversion circuit is controlled by the first control signal or the third control signal.
3. The dynamic voltage frequency adjustment circuit according to claim 2, wherein the third control signal is a digital signal and is high in the case that the output current of the second voltage conversion circuit is greater than a specific switching threshold.
4. The dynamic voltage frequency adjustment circuit of claim 1, wherein the control unit is further configured to feed back a supply voltage of the master integrated circuit to the first voltage conversion circuit through the control unit and a port of the first voltage conversion circuit.
5. The dynamic voltage frequency adjustment circuit of claim 1, further comprising:
and the charge pump is connected with the first voltage conversion circuit.
6. The dynamic voltage frequency adjustment circuit of claim 1, wherein the first path comprises a first inductor and a first capacitor, a first end of the first inductor is connected to the first voltage conversion circuit, a second end of the first inductor is connected to a first end of the first capacitor, a second end of the first capacitor is connected to one end of the first switch, and the other end of the first switch is connected to the control unit;
the second path comprises a second inductor and a second capacitor, wherein the first end of the second inductor is connected with the second voltage conversion circuit, the second end of the second inductor is connected with the first end of the second capacitor, the second end of the second capacitor is connected with one end of the second switch, and the other end of the second switch is connected with the control unit.
7. The dynamic voltage frequency adjustment circuit of claim 1 or 6, wherein the first voltage conversion circuit and the first path are both located in the master integrated circuit; or,
the first channel is positioned in the main control integrated circuit, and the first voltage conversion circuit is independent of the main control integrated circuit.
8. The dynamic voltage frequency adjustment circuit of claim 1 or 6, wherein the first voltage conversion circuit and the second voltage conversion circuit are both located on a power management integrated circuit.
9. A control method for dynamic voltage frequency adjustment, comprising:
based on the state of the target load of the master integrated circuit, at least one of the following is performed:
a first control signal is sent to a first voltage conversion circuit to control the working state of the first voltage converter;
sending a second control signal to a second voltage conversion circuit to control the working state of the second voltage converter;
controlling the switching state of the first switch and/or the second switch;
the first switch is a switch on a first path, and the first voltage conversion circuit supplies power to the target load through the first path; the second switch is a switch on a second path through which the second voltage conversion circuit supplies power to the target load.
10. The method according to claim 9, wherein the method further comprises:
and feeding back the power supply voltage of the master control integrated circuit to the first voltage conversion circuit.
11. An electronic device comprising a dynamic voltage frequency adjustment circuit according to any one of claims 1 to 8.
12. The electronic device according to claim 11, wherein in a case where the target loads are plural, one first voltage conversion circuit and one second voltage conversion circuit are corresponding to each target load.
13. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the control method of dynamic voltage frequency adjustment according to claim 9 or 10.
CN202311459748.3A 2023-11-03 2023-11-03 Dynamic voltage frequency adjustment circuit and electronic equipment Pending CN117458867A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311459748.3A CN117458867A (en) 2023-11-03 2023-11-03 Dynamic voltage frequency adjustment circuit and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311459748.3A CN117458867A (en) 2023-11-03 2023-11-03 Dynamic voltage frequency adjustment circuit and electronic equipment

Publications (1)

Publication Number Publication Date
CN117458867A true CN117458867A (en) 2024-01-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311459748.3A Pending CN117458867A (en) 2023-11-03 2023-11-03 Dynamic voltage frequency adjustment circuit and electronic equipment

Country Status (1)

Country Link
CN (1) CN117458867A (en)

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