CN110413036B - Devices and electronic equipment for adjusting voltage - Google Patents

Abstract

The embodiment of the present invention relates to the technical field of power management, and discloses a device for adjusting voltage and an electronic device. The device includes: a power module, a first chip and a second chip; the power module includes a signal feedback end and a voltage output end, the first The chip includes a first voltage input end and a first signal output end, the second chip includes a second voltage input end, a first signal input end and a second signal output end; the voltage output end is connected to the first voltage input end and the second voltage input end terminal; the first signal output terminal is connected to the first signal input terminal; the second signal output terminal is connected to the signal feedback terminal; the second chip receives the first indication signal indicating the first voltage sent by the first chip; calculates the first voltage and the second The weighted sum of the voltages is used to obtain the third voltage, and the second indication signal indicating the third voltage is output to the signal feedback; the power module adjusts the output voltage according to the third voltage; the power consumption of the chip can be reduced on the premise of reducing the cost and overhead. .

Description

Devices and electronic equipment for adjusting voltage

technical field

The present invention relates to the technical field of power management, and in particular, to a voltage adjusting device and electronic equipment.

Background technique

Adaptive Voltage Scaling (AVS) is an effective power management technology. AVS adjusts the frequency according to a certain strategy by monitoring the hardware, and adjusts the voltage adaptively based on the working conditions of the load, which can further reduce the power consumption of the load by 30-70%. A great feature of AVS technology is that it can reduce system power consumption without affecting system functions and various indicators.

Currently, the AVS function used on the chip basically takes the form of a digital interface, that is, the voltage of the power supply is dynamically adjusted through the digital interface. At present, the AVS function is mainly used on high-power chips, and each chip is configured with an AVS power supply. In actual use, when a device has multiple low-power chips that need to use the AVS function, multiple AVS power supplies need to be configured, that is, one AVS power supply is configured for each low-power chip. In this way, it is necessary to increase the area of a printed circuit board (Printed Circuit Board, PCB) to facilitate the arrangement of these AVS power supplies, and the equipment cost increases greatly.

The above-mentioned technical solution has the disadvantage of high cost. Therefore, it is necessary to study a low-cost solution for reducing chip power consumption.

SUMMARY OF THE INVENTION

The present application provides an apparatus and electronic device for adjusting voltage, which can reduce the power consumption of a chip on the premise of reducing cost.

In a first aspect, the present application provides a device for adjusting voltage, including:

Power module and multiple chips;

the plurality of chips includes a first chip and a second chip;

The power module includes a signal feedback end and a voltage output end, the first chip includes a first voltage input end and a first signal output end, and the second chip includes a second voltage input end, a first signal input end and a first signal output end. Two signal output terminals;

The voltage output terminal is connected to the first voltage input terminal and the second voltage input terminal; the first signal output terminal is connected to the first signal input terminal; the second signal output terminal is connected to the signal feedback end;

The second chip is configured to receive a first indication signal from the first chip from the first signal input terminal, where the first indication signal indicates a first voltage; calculate the first voltage and the second voltage The weighted sum of , obtains a third voltage, and outputs a second indication signal from the second signal output end to the signal feedback end, where the second indication signal indicates the third voltage;

The power module is configured to receive the second indication signal from the signal feedback terminal, and adjust the voltage output from the voltage output terminal according to the third voltage.

The power module may adjust the voltage output by the voltage output terminal according to the indication signal from the second chip. Both the first chip and the second chip can obtain information related to the system load, and calculate the current system load according to the information; then, determine the required voltage or the voltage to be adjusted according to the calculated system load, And generate a corresponding signal to send to the power module or to the next-level chip connected to it. That is, the first chip and the second chip can instruct the power supply module to adjust the voltage output by the voltage output terminal of the power supply module according to their own voltage requirements. The AVS function refers to the adaptive voltage regulation function, that is, the output voltage of the power module is adaptively adjusted. The voltages provided by the power supply module to the first chip and the second chip are the same, that is, the voltage output from the voltage output terminal to the first voltage input terminal and the second voltage input terminal is the same. The power supply module can adjust the output voltage of the power supply module by integrating the voltage requirements of the first chip and the second chip, so as to meet the voltage requirements of the two chips. It can be understood that the device for adjusting voltage includes at least two chips, the first chip is an upper-level chip of the second chip, and the first chip and the second chip are connected in a cascade manner . The power supply module may be an independent power supply, that is, it only supplies power to a plurality of cascaded chips, and does not supply power to other components in the voltage regulating device.

In this application, multiple chips share a power module, and the voltage required by these chips is fed back in a cascaded manner. The power module integrates the voltage requirements of these chips to adjust the output voltage to realize the AVS function; the number of power modules can be reduced, and reduce equipment costs.

In an optional implementation manner, the plurality of chips further include:

the third chip;

The third chip includes a third voltage input terminal and a third signal output terminal, and the first chip further includes a second signal input terminal;

the voltage output terminal is connected to the third voltage input terminal, and the third signal output terminal is connected to the second signal input terminal;

The third chip is configured to output a third indication signal from the third signal output end to the first chip, where the third indication signal indicates a fourth voltage; the first chip calculates the fourth voltage and the weighted sum of the fifth voltage to obtain the first voltage, and output the first indication signal from the first signal output end to the first signal input end.

The device for adjusting voltage may include three chips, namely the first chip, the second chip and the third chip; the first chip is an upper-level chip of the second chip, the The third chip is an upper-level chip of the first chip. It can be understood that the device for adjusting voltage may include three or more chips, the third chip is a first-level chip, the second chip is a last-level chip, and the first chip is located in the A chip between the third chip and the second chip. At least one chip may be included between the third chip and the second chip. In this application, the number of chips included in the device for adjusting voltage is not limited. The fourth voltage is a voltage value required by the third chip or a voltage value that needs to be adjusted; the fifth voltage is a voltage value required by the first chip or a voltage value that needs to be adjusted. It can be understood that any one-level chip between the first-level chip and the last-level chip can calculate the weighted sum of the voltage value indicated by the upper-level chip and the required voltage value or the voltage value that needs to be adjusted, And send it to its next-level chip through an indication signal.

In an optional implementation manner, the third voltage is a voltage value required by the plurality of chips;

The power module is specifically configured to adjust the voltage output by the voltage output terminal to the third voltage.

In this implementation manner, a power supply module is used to supply power to multiple chips, and the output voltages of the multiple chips are adjusted according to the voltage values required by the multiple chips; the implementation is simple.

In an optional implementation manner, the first chip includes a first feedback module, and the second chip includes a second feedback module; an output end of the first feedback module is connected to the first signal output end; the first signal input terminal is connected to the first input terminal of the second feedback module, and the output terminal of the second feedback module is connected to the second signal output terminal;

The first feedback module is used to determine the first voltage according to the performance requirements of the first chip and environmental parameters; generate the first indication signal, and output it from the output end of the first feedback module to the the second chip;

The second feedback module is configured to determine the second voltage according to the performance requirements of the second chip and environmental parameters; receive the first indication signal through the first signal input terminal; calculate the first voltage and the weighted sum of the second voltage to obtain the third voltage; generating the second indication signal, and outputting the signal from the output end of the second feedback module to the signal feedback end of the power supply module.

The performance requirement can be the system load, that is, the load of the first chip or the second chip; it can also be the performance predicted by the chip in the next time period according to the current system load, that is, the first chip or the second chip in the next time period. required performance. The environmental parameters may include the temperature of the chip, the clock frequency inside the chip, and the like.

In this implementation manner, both the first chip and the second chip can determine their respective required voltages according to their respective performance requirements and environmental parameters, and perform feedback to meet their respective voltage requirements; using one power supply can AVS function, easy to implement.

In an optional implementation manner, the apparatus further includes: a first hardware performance monitor and a second hardware performance monitor; an output end of the first hardware performance monitor is connected to an input end of the first feedback module ; The output end of the second hardware performance monitor is connected to the second input end of the second feedback module;

the first hardware performance monitor, configured to monitor the performance requirements and environmental parameters of the first chip, and output to the input end of the first feedback module;

The second hardware performance monitor is used for monitoring the performance requirements and environmental parameters of the second chip, and outputs the output to the second input terminal of the second feedback module.

The first hardware performance monitor is integrated with the first chip, and the second hardware performance monitor is integrated with the second chip. Alternatively, the first hardware performance monitor is integrated with the first feedback module, and the second hardware performance monitor is integrated with the second feedback module. Alternatively, the first hardware performance monitor is integrated with the first chip, and the second hardware performance monitor is integrated with the second feedback module. The hardware performance monitor may be a hardware performance monitoring circuit. The hardware performance monitor is used for AVS closed-loop voltage control. The first feedback module may determine an optimal power supply voltage according to the performance information of the first chip provided by the first hardware performance monitor, so as to achieve the performance level required by the first chip; the The second feedback module may determine an optimal power supply voltage according to the performance information of the second chip provided by the second hardware performance monitor, so as to achieve the performance level required by the second chip.

In this implementation, the performance requirements and environmental parameters of the chip are monitored by the hardware performance monitor, so that the feedback module can determine the voltage required by the chip, and the performance requirements and environmental parameters of the chip can be quickly and accurately detected.

In an optional implementation manner, the third voltage is a voltage value that needs to be adjusted by the plurality of chips;

The power module is specifically configured to increase or decrease the voltage output by the voltage output terminal according to the third voltage.

In this implementation manner, a power supply module is used to supply power to multiple chips, and the output voltages of the multiple chips are adjusted according to the voltage values that need to be adjusted; the implementation is simple.

In an optional implementation manner, the first chip includes a third feedback module, and the second chip includes a fourth feedback module; an output end of the third feedback module is connected to the first signal output end; the first signal input terminal is connected to the first input terminal of the fourth feedback module, and the output terminal of the fourth feedback module is connected to the second signal output terminal;

The third feedback module is used for calculating the difference between the output voltage of the power module and the first preset voltage to obtain the first voltage; generating the first indication signal and outputting the first signal output to the second chip; the first preset voltage is the preset working voltage of the first chip;

The fourth feedback module is used to calculate the difference between the output voltage of the power module and the second preset voltage to obtain the second voltage; receive the first indication signal through the first input terminal; calculate the weighted sum of the first voltage and the second voltage to obtain the third voltage; the second indication signal is generated and output to the power module through the second signal output terminal; the second The preset voltage is a preset working voltage of the second chip.

In this implementation manner, both the first chip and the second chip feed back their respective voltages that need to be adjusted, so that the voltage provided by the power supply meets the preset working voltage of each chip, and the implementation is simple.

In an optional implementation manner, the input terminal of the third feedback module is connected to the first voltage input terminal; the second input terminal of the fourth feedback module is connected to the second voltage input terminal;

the third feedback module is further configured to detect the output voltage of the power module;

The fourth feedback module is further configured to detect the output voltage of the power module.

Both the third feedback module and the fourth feedback module include a voltage detection unit, and the voltage detection unit can detect the output voltage of the power supply. Specifically, the voltage detection unit or voltage detection circuit included in the third feedback module and the fourth feedback module is used to detect the output voltage of the power supply.

In this implementation manner, both the third feedback module and the fourth feedback module can detect the output voltage of the voltage, and then feed back the voltage to be adjusted.

In an optional implementation manner, the first voltage is a voltage value required by the first chip; the second voltage is a voltage value required by the second chip;

The power module is specifically configured to adjust the voltage output by the voltage output terminal to the third voltage.

Optionally, the voltage value required by the first chip is the minimum operating voltage required by the first chip; the voltage value required by the second chip is the lowest operating voltage required by the second chip.

In this implementation manner, both the first chip and the second chip determine their respective minimum operating voltages, which can reduce power consumption.

In an optional implementation manner, the first voltage is a voltage value that needs to be adjusted by the first chip; the second voltage is a voltage value that needs to be adjusted by the second chip;

The power module is specifically configured to increase or decrease the third voltage from the voltage output by the voltage output terminal.

In this implementation manner, both the first chip and the second chip determine respective voltages to be adjusted, so that the voltage output by the power module can be quickly adjusted.

In an optional implementation manner, the first indication signal and the second indication signal are both analog signals; the amplitude of the first indication signal is positively correlated with the first voltage; the second indication signal The amplitude of is positively correlated with the third voltage;

Alternatively, both the first indication signal and the second indication signal are digital signals, the first indication signal includes the first voltage, and the second indication signal includes the third voltage. .

Optionally, the first signal output terminal is connected to the first signal input terminal through a system bus; the first chip sends the first indication signal to the second chip through a system bus.

In this implementation, the analog signal is used for feedback, and the level of the analog signal is used to indicate the magnitude of the required voltage, which is simple to implement; the digital signal is used for feedback, and the output voltage of the power module can be adjusted more accurately, with high precision.

In a second aspect, the present application provides an electronic device, where the electronic device includes the above-mentioned first aspect or the apparatus in any implementation manner of the above-mentioned first aspect.

In the present application, the electronic device uses one power supply to supply power to multiple chips to implement the AVS function, which can reduce the number of power supplies and reduce the cost of the device.

In a third aspect, the present application provides a computer-readable storage medium storing a computer program, the computer program including program instructions, the program instructions when executed by the second chip, the second chip The operation of calculating the weighted sum of the first voltage and the second voltage in the above-described first aspect is performed.

Description of drawings

In order to illustrate the technical solutions in the present application more clearly, the accompanying drawings required in the present application or the background technology will be described below.

FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

2-6 are schematic diagrams of a voltage adjustment device provided by an embodiment of the present application.

Detailed ways

In the existing technical solution, if a chip needs to implement the AVS function, the chip needs to have an independent power supply module for power supply. That is to say, if multiple chips need to use the AVS function, each chip needs an independent power module for power supply. This method requires a larger number of power modules, and the cost is higher. In addition, a larger number of power supplies will increase the area of the PCB board. Therefore, it is necessary to study a low-cost solution for reducing chip power consumption.

FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. As shown in FIG. 1 , the electronic device 100 includes a chipset 131 and a power module 132 for supplying power to the chipset 131 . The chip set 131 includes a plurality of chips, and the plurality of chips are connected in a cascade manner. In FIG. 1, the chip set 131 includes four chips 131-1, 131-2, 131-3 and 131-4; the chips 131-1, 131-2, 131-3 and 131-4 are cascaded in sequence as an example . In a specific implementation, the chipset 131 may include only two chips, or may include three or more chips. The power module 132 supplies power to a plurality of cascaded chips included in the chipset 131 . The multiple cascaded chips included in the chipset 131 may be independent chips, that is, not related in function; or may be interrelated chips, that is, multiple chips cooperate to implement some functions. The power module 132 and the chipset 131 may be arranged on a PCB of the electronic device 100 .

The power module 132 can adjust the voltage output to the chipset 132 accordingly according to the overall voltage requirements of the plurality of chips included in the chipset 132 .

The electronic device 100 may also include a processor, a memory, a communication interface, a peripheral system, and the like. The power module 132 and the chipset 131 may constitute a device for adjusting voltage, that is, the electronic device in FIG. 1 includes the device for adjusting voltage in FIG. 2 .

It should be understood that the electronic device 100 is only an example provided by the embodiments of the present invention, and the electronic device 100 may have more or less components, may combine two or more components, or may have different configurations of components for implementation .

FIG. 2 shows a schematic diagram of an apparatus for adjusting voltage provided by an embodiment of the present application. As shown in FIG. 2, the device for adjusting voltage described in this embodiment includes: a power supply module 10 and a plurality of chips 200; the power supply module 10 includes an adaptive voltage adjustment AVS function;

The plurality of chips 200 include a first chip 20 and a second chip 30;

The above-mentioned power module 10 includes a signal feedback terminal 101 and a voltage output terminal 102, the above-mentioned first chip 20 includes a first voltage input terminal 201 and a first signal output terminal 202, and the above-mentioned second chip 30 includes a second voltage input terminal 301, a first a signal input end 302 and a second signal output end 303;

The voltage output end 102 is connected to the first voltage input end 201 and the second voltage input end 301; the first signal output end 202 is connected to the first signal input end 302; the second signal output end 303 is connected to the signal feedback end 101. The power module 10 can correspondingly adjust the voltage output by the voltage output terminal 102 according to the signal fed back by the signal feedback terminal 101 . The first signal output terminal 202 is connected to the first signal input terminal 302 through corresponding pins or through a bus. The first indication signal may be a module signal or a digital signal.

As shown in FIG. 2 , the device for adjusting voltage in the present application can realize the following voltage adjustment operations:

2001. The second chip 30 is configured to receive, from the first signal output end 202, a first indication signal from the first chip 20, where the first indication signal indicates a first voltage.

The first voltage is the voltage required by the first chip 20 .

2002. The second chip 30 calculates the weighted sum of the first voltage and the second voltage to obtain a third voltage, and outputs a second indication signal from the second signal output terminal 303 to the signal feedback terminal 101, the The second indication signal indicates the third voltage.

The second voltage is the voltage required by the second chip 30 .

2003. The power module 10 receives the second indication signal from the signal feedback terminal 101, and adjusts the voltage output from the voltage output terminal 102 according to the third voltage.

Optionally, both the first indication signal and the second indication signal are analog signals. The first chip 20 and the second chip 30 are connected through corresponding pins, that is, the pins of the first signal output terminal 202 are connected to the pins of the first signal input terminal 302, and the first chip 20 is connected through the first signal output terminal. 202 transmits the first indication signal to the second chip 30 . The second chip 20 and the power module 10 are connected through corresponding pins, that is, the pins of the second signal output terminal 303 are connected to the pins of the signal feedback terminal 101 , and the second chip 30 is connected to the power supply through the second signal output terminal 303 The module 10 feeds back the second indication signal.

Optionally, both the first indication signal and the second indication signal are digital signals. The first signal output terminal 202 of the first chip 20, the second signal output terminal 303 of the second chip 30 and the signal feedback terminal 101 of the power supply module 10 are all connected to the bus; the first chip 20 transmits the information to the second chip 30 through the bus The first indication signal, that is, the first chip 20 transmits the first indication signal to the bus from the first signal output terminal 202, and the second chip 30 obtains the first indication signal from the bus through the first signal input terminal 302; The two chips 30 transmit the second indication signal to the power module 10 through the bus, that is, the second chip 30 transmits the second indication signal to the bus through the second signal output terminal 303 , and the power module 10 transmits the signal from the bus through the signal feedback terminal 101 Obtain the second indication signal.

The weighting coefficients corresponding to the first voltage and the second voltage may be different.

The second chip 30 may be preset with weight coefficients corresponding to the first voltage and the second voltage respectively, that is, the weight coefficient corresponding to the voltage required by the first chip 20 and the weight coefficient corresponding to the voltage required by the second chip 30 . The weight coefficients respectively corresponding to the voltages required by the first chip 20 and the second chip 30 preset by the second chip 30 may be fixed values, or may be adjusted according to actual requirements. For example, the weight coefficient corresponding to the voltage required by the first chip 20 is a, the weight coefficient corresponding to the voltage required by the second chip 30 is b, the first voltage required by the first chip 20 is A, and the voltage required by the second chip 30 is A. If the required second voltage is B, the second chip 30 uses the following formula to calculate the weighted sum of the first voltage A and the second voltage B: C=a×A+b×B. Wherein, C is the calculated weighted sum of the first voltage A and the second voltage B, that is, the third voltage; a, b are weighting coefficients, and satisfy a+b=1.

The device for adjusting voltage in the present application can also realize the following voltage adjusting operations:

Step 1: The first chip 20 outputs a third indication signal to the first signal input end 302 of the second chip 30 through the first signal output end 202 , and the third indication signal indicates the fourth voltage to be adjusted by the first chip 20 .

Step 2: The second chip 30 calculates the weighted sum of the fourth voltage and the fifth voltage to obtain a sixth voltage, and outputs a fourth indication signal to the power module 10 . The fourth indication signal indicates the above-mentioned sixth voltage.

Step 3: The power module 10 increases or decreases the voltage output by the voltage output terminal 102 according to the sixth voltage. The above-mentioned fifth voltage is the voltage to be adjusted by the above-mentioned second chip 30 .

The power module 10 increases or decreases the voltage output by the voltage output terminal 102 according to the sixth voltage, that is, the power module 10 uses the sum of the voltage originally output by the voltage output terminal 102 and the sixth voltage as the voltage output terminal 102 Adjusted output voltage.

Assuming that the sixth voltage is -1V, the power module 10 reduces the voltage output by the voltage output terminal 102 by 1 volt (V). Assuming that the sixth voltage is 1V, the power module 10 increases the voltage output by the voltage output terminal 102 by 1V. In other words, if the voltage originally output by the voltage output terminal 102 is 15V, and the sixth voltage is assumed to be -1V, the power module 10 takes the sum of the voltage originally output by the voltage output terminal 102 of 15V and the sixth voltage -1V, that is, 14V, as the The voltage outputted by the voltage output terminal 102 after adjustment. Assuming that the sixth voltage is 1V, the power module 10 uses the sum of the voltage 15V originally output by the voltage output terminal 102 and the sixth voltage 1V, ie 16V, as the adjusted output voltage of the voltage output terminal 102 .

The second chip 30 may be preset with weight coefficients corresponding to the fourth voltage and the fifth voltage respectively, that is, the weight coefficient corresponding to the voltage to be adjusted by the first chip 20 and the voltage corresponding to the voltage to be adjusted by the second chip 30 . weight factor. The weight coefficients corresponding to the voltage preset by the second chip 30 to be adjusted by the first chip 20 and the voltage to be adjusted by the second chip 30 may be fixed values, or may be adjusted according to actual needs. For example, the weight coefficient corresponding to the voltage to be adjusted by the first chip 20 is m, the weight coefficient corresponding to the voltage to be adjusted by the second chip 30 is n, and the fourth voltage to be adjusted by the first chip 20 is C, The fifth voltage to be adjusted by the second chip 30 is D, then the second chip 30 uses the following formula to calculate the weighted sum of the fourth voltage C and the fifth voltage D: E=m×C+n×D. Wherein, E is the calculated weighted sum of the fourth voltage C and the fifth voltage D, that is, the third voltage; m, n are weighting coefficients, and m+n=1 is satisfied.

In this application, multiple chips share a power supply, and the voltage required by these chips is fed back in a cascaded manner. The power supply integrates the voltage requirements of these chips and adjusts the output voltage to realize the AVS function; it can reduce the number of power supplies and reduce equipment. cost.

FIG. 3 shows another schematic diagram of the device for adjusting voltage provided by an embodiment of the present application, which is a further refinement of the device shown in FIG. 2 . As shown in FIG. 3 , the first chip 20 includes a first feedback module 40 , and the second chip 30 includes a second feedback module 50 ; the output end 401 of the first feedback module 40 is connected to the first signal output end 202 ; the second chip 30 The first signal input end 302 of the second feedback module 50 is connected to the first input end 501 of the second feedback module 50 , and the output end 502 of the second feedback module 50 is connected to the second signal output end 303 .

The first feedback module 40 can obtain the performance requirements and environmental parameters of the first chip 20, and determine the above-mentioned first voltage according to the performance requirements and environmental parameters of the first chip 20; The output terminal 401 of the output terminal 401 is output to the above-mentioned second chip 30 . The second feedback module 50 can acquire the performance requirements and environmental parameters of the second chip 30, and determine the second voltage according to the performance requirements and environmental parameters of the second chip 30; and receive the first indication signal through the first signal input terminal 302 Calculate the weighted sum of above-mentioned first voltage and above-mentioned second voltage, obtain above-mentioned third voltage; .

In this embodiment, each chip determines its required voltage through the included feedback module, and generates a corresponding indication signal, which is simple to implement.

FIG. 4 shows another schematic diagram of the device for adjusting voltage provided by an embodiment of the present application, which is a further refinement of the device shown in FIG. 3 . As shown in FIG. 4 , the apparatus further includes: a first hardware performance monitor 60 and a second hardware performance monitor 70; the output end 601 of the first hardware performance monitor 60 is connected to the input end 402 of the first feedback module 40; The output terminal 701 of the two hardware performance monitors 70 is connected to the second input terminal 503 of the above-mentioned second feedback module 50 .

The first hardware performance monitor 60 is used to monitor the performance requirements and environmental parameters of the first chip 20, and output to the input end 402 of the first feedback module 40, so that the first feedback module 40 can determine the above-mentioned first voltage; the second The hardware performance monitor 70 is used to monitor the performance requirements and environmental parameters of the second chip 30 and output to the second input terminal 503 of the second feedback module 50 so that the second feedback module 50 can determine the above-mentioned second voltage.

Optionally, the first hardware performance monitor 60 is integrated with the first chip 20 , and the second hardware performance monitor 70 is integrated with the second chip 30 . Optionally, the first hardware performance monitor 60 is integrated with the first feedback module 40 , and the second hardware performance monitor 70 is integrated with the second feedback module 50 . Optionally, the first hardware performance monitor 60 is integrated with the first chip 20 , and the second hardware performance monitor 70 is integrated with the second feedback module 30 .

The first feedback module 40 may determine the optimal power supply voltage according to the performance information of the first chip 20 provided by the first hardware performance monitor 60 to achieve the performance level required by the first chip 20 described above. The second feedback module 50 may determine the optimal power supply voltage according to the performance information of the second chip 30 provided by the second hardware performance monitor 70 to achieve the performance level required by the second chip 30 .

In this embodiment, the performance requirements and environmental parameters of the chip are monitored by the hardware performance monitor, so that the feedback module can determine the voltage required by the chip, and the performance requirements and environmental parameters of the chip can be quickly and accurately detected.

FIG. 5 shows another schematic diagram of the device for adjusting voltage provided by the embodiment of the present application, which is a further refinement of the device shown in FIG. 2 . As shown in FIG. 5 , the first chip 20 includes a third feedback module 80 , and the second chip 30 includes a fourth feedback module 90 ; the first voltage input terminal 201 is connected to the input terminal 801 of the third feedback module 80 ; the third feedback module 80 The output terminal 802 of the signal is connected to the first signal output terminal 202; the first signal input terminal 302 is connected to the first input terminal 901 of the fourth feedback module 90; the output terminal 902 of the fourth feedback module 90 is connected to the second signal output terminal 303; The voltage input terminal 301 is connected to the second input terminal 903 of the fourth feedback module 90 .

Optionally, both the first chip 20 and the second chip 30 have a built-in circuit for detecting the input voltage, that is, a circuit for detecting the output voltage of the power supply module 10, and output the detected voltage to the third feedback module 80 and the fourth feedback module respectively. module 90.

Optionally, the third feedback module 80 may detect the voltage of the first voltage input terminal 201 of the first chip 20 . The fourth feedback module 90 can detect the voltage of the second voltage input terminal 301 of the second chip 30 . Specifically, both the third feedback module 80 and the fourth feedback module 90 have built-in circuits for detecting the input voltage. Since the first voltage input terminal 201 and the second voltage input terminal 301 are both connected to the voltage output terminal 102 of the power module 10 . Therefore, the voltage of the second voltage input terminal 301 of the second chip 30 and the voltage of the first voltage input terminal 201 of the first chip 20 are both the output voltage of the power supply 10 . That is, both the third feedback module 80 and the fourth feedback module 90 can detect the output voltage of the power module 10 . The third feedback module 80 can obtain the first preset voltage, and the fourth feedback module 90 can obtain the second preset voltage.

The third feedback module 80 is used to calculate the difference between the output voltage of the power module 10 and the first preset voltage to obtain the above-mentioned fourth voltage; to generate the above-mentioned third indication signal, and output it to the second through the first signal output terminal 202 The chip 30 ; the first preset voltage is the working voltage preset by the first chip 20 .

The fourth feedback module 90 is used to calculate the difference between the output voltage of the power supply module 10 and the second preset voltage to obtain the above-mentioned fifth voltage; receive the above-mentioned third indication signal through the first input terminal 901; calculate the above-mentioned fourth voltage and The above-mentioned sixth voltage is obtained by the weighted sum of the above-mentioned fifth voltages; the above-mentioned fourth indication signal is generated and output to the power module 10 through the second signal output terminal 303 ; the above-mentioned second preset voltage is preset by the above-mentioned second chip 30 Operating Voltage.

As shown in Figure 5, the device can achieve the following voltage regulation operations:

5001 . The third feedback module 80 calculates the difference between the output voltage of the power supply module 10 and the first preset voltage to obtain a fourth voltage, generates a third indication signal indicating the fourth voltage, and outputs it to the second chip 30 .

5002. The fourth feedback module 90 calculates the difference between the output voltage of the power supply module 10 and the second preset voltage to obtain the above-mentioned fifth voltage; receives the above-mentioned third indication signal through the first signal input terminal 302 of the second chip 30; calculates The above-mentioned sixth voltage is obtained by the weighted sum of the above-mentioned fourth voltage and the above-mentioned fifth voltage; a fourth indication signal indicating the sixth voltage is generated and output to the power module 10 .

5003. The power module 10 increases or decreases the above-mentioned sixth voltage of the output voltage of the voltage output terminal 102.

In this embodiment, the minimum reliable working voltage set at the factory of the first chip 20 is the first preset voltage; the minimum reliable working voltage set at the factory of the second chip 30 is the second preset voltage.

The plurality of chips 200 in the apparatus for adjusting voltage provided by the embodiments of the present application may include two or more chips. FIG. 6 shows another schematic diagram of the device for adjusting voltage provided by the embodiment of the present application. FIG. 6 is based on FIG. 2 with the addition of a third chip that is cascaded with the first chip 20 . As shown in FIG. 6 , the plurality of chips 200 further include: a third chip 110;

The third chip 110 includes a third voltage input end 111 and a third signal output end 112, and the first chip 20 further includes a second signal input end 203;

The voltage output terminal 102 is connected to the third voltage input terminal 111, and the third signal output terminal 112 is connected to the second signal input terminal 203;

The third chip 110 is configured to output a third indication signal from the third signal output terminal 112 to the first chip 20, where the third indication signal indicates a fourth voltage; the first chip 20 calculates the fourth voltage and the fifth voltage The weighted sum of , obtains the first voltage.

The fourth voltage is a voltage value required by the third chip 110 , and the fifth voltage is a voltage value required by the first chip 20 . Alternatively, the fourth voltage is a voltage value that needs to be adjusted by the third chip 110 , and the fifth voltage is a voltage value that needs to be adjusted by the first chip 20 .

The voltage adjustment method of the voltage adjustment device provided in the embodiment of the present invention is the same as the voltage adjustment method of the voltage adjustment device in FIG. 2 , which will not be described in detail here. It can be understood that no matter how many cascaded chips are included in the plurality of chips 200 , the voltage output by the power module 10 can be adjusted in the manner shown in FIG. 2 .

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalents within the technical scope disclosed by the present invention. Modifications or substitutions should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (16)

1. An apparatus for regulating voltage, comprising:

a power module and a plurality of chips;

the plurality of chips include a first chip and a second chip;

the power supply module comprises a signal feedback end and a voltage output end, the first chip comprises a first voltage input end and a first signal output end, and the second chip comprises a second voltage input end, a first signal input end and a second signal output end;

the voltage output end is connected with the first voltage input end and the second voltage input end; the first signal output end is connected with the first signal input end; the second signal output end is connected with the signal feedback end;

the second chip is used for receiving a first indication signal from the first chip from the first signal input end, and the first indication signal indicates a first voltage; calculating a weighted sum of the first voltage and the second voltage to obtain a third voltage, and outputting a second indication signal from the second signal output end to the signal feedback end, wherein the second indication signal indicates the third voltage;

and the power supply module is used for receiving the second indication signal from the signal feedback end and adjusting the voltage output from the voltage output end according to the third voltage.

2. The apparatus of claim 1, wherein the plurality of chips further comprises:

a third chip;

the third chip comprises a third voltage input end and a third signal output end, and the first chip further comprises a second signal input end;

the voltage output end is connected with the third voltage input end, and the third signal output end is connected with the second signal input end;

the third chip is configured to output a third indication signal from the third signal output terminal to the first chip, where the third indication signal indicates a fourth voltage; the first chip calculates a weighted sum of the fourth voltage and the fifth voltage to obtain the first voltage.

3. The apparatus of claim 1 or 2, wherein the third voltage is a voltage value required by the plurality of chips;

the power supply module is specifically configured to adjust the voltage output by the voltage output terminal to the third voltage.

4. The apparatus of claim 3, wherein the first chip comprises a first feedback module and the second chip comprises a second feedback module; the output end of the first feedback module is connected with the first signal output end; the first signal input end is connected with the first input end of the second feedback module, and the output end of the second feedback module is connected with the second signal output end;

the first feedback module is used for determining the first voltage according to the performance requirement and the environmental parameter of the first chip; generating the first indication signal and outputting the first indication signal to the second chip from the output end of the first feedback module;

the second feedback module is used for determining the second voltage according to the performance requirement and the environmental parameter of the second chip; receiving the first indication signal through the first signal input; calculating a weighted sum of the first voltage and the second voltage to obtain the third voltage; and generating the second indication signal, and outputting the second indication signal to a signal feedback end of the power supply module from an output end of the second feedback module.

5. The apparatus of claim 4, further comprising: a first hardware performance monitor and a second hardware performance monitor; the output end of the first hardware performance monitor is connected with the input end of the first feedback module; the output end of the second hardware performance monitor is connected with the second input end of the second feedback module;

the first hardware performance monitor is used for monitoring the performance requirement and the environmental parameter of the first chip and outputting the performance requirement and the environmental parameter to the input end of the first feedback module;

and the second hardware performance monitor is used for monitoring the performance requirement and the environmental parameter of the second chip and outputting the performance requirement and the environmental parameter to a second input end of the second feedback module.

6. The apparatus of claim 1 or 2, wherein the third voltage is a voltage value required to be adjusted by the plurality of chips;

the power supply module is specifically configured to increase or decrease the voltage output by the voltage output terminal according to the third voltage.

7. The apparatus of claim 6, wherein the first chip comprises a third feedback module and the second chip comprises a fourth feedback module; the output end of the third feedback module is connected with the first signal output end; the first signal input end is connected with the first input end of the fourth feedback module, and the output end of the fourth feedback module is connected with the second signal output end;

the third feedback module is used for calculating a difference value between the output voltage of the power supply module and a first preset voltage to obtain the first voltage; generating the first indication signal and outputting the first indication signal to the second chip through the first signal output end; the first preset voltage is a working voltage preset by the first chip;

the fourth feedback module is used for calculating a difference value between the output voltage of the power supply module and a second preset voltage to obtain the second voltage; receiving the first indication signal through the first input terminal; calculating a weighted sum of the first voltage and the second voltage to obtain the third voltage; generating the second indication signal and outputting the second indication signal to the power supply module through the second signal output end; the second preset voltage is a preset working voltage of the second chip.

8. The apparatus of claim 7, wherein an input of the third feedback module is connected to the first voltage input; a second input end of the fourth feedback module is connected with the second voltage input end;

the third feedback module is further used for detecting the output voltage of the power supply module;

the fourth feedback module is further configured to detect an output voltage of the power module.

9. The apparatus of claim 1 or 2, wherein the first indicator signal and the second indicator signal are both analog signals; the amplitude of the first indication signal is positively correlated with the first voltage; the amplitude of the second indication signal is positively correlated with the third voltage;

or, the first indication signal and the second indication signal are both digital signals, the first indication signal includes the first voltage, and the second indication signal includes the third voltage.

10. The apparatus of claim 3, wherein the first indicator signal and the second indicator signal are both analog signals; the amplitude of the first indication signal is positively correlated with the first voltage; the amplitude of the second indication signal is positively correlated with the third voltage;

or, the first indication signal and the second indication signal are both digital signals, the first indication signal includes the first voltage, and the second indication signal includes the third voltage.

11. The apparatus of claim 4, wherein the first indicator signal and the second indicator signal are both analog signals; the amplitude of the first indication signal is positively correlated with the first voltage; the amplitude of the second indication signal is positively correlated with the third voltage;

or, the first indication signal and the second indication signal are both digital signals, the first indication signal includes the first voltage, and the second indication signal includes the third voltage.

12. The apparatus of claim 5, wherein the first indicator signal and the second indicator signal are both analog signals; the amplitude of the first indication signal is positively correlated with the first voltage; the amplitude of the second indication signal is positively correlated with the third voltage;

or, the first indication signal and the second indication signal are both digital signals, the first indication signal includes the first voltage, and the second indication signal includes the third voltage.

13. The apparatus of claim 6, wherein the first indicator signal and the second indicator signal are both analog signals; the amplitude of the first indication signal is positively correlated with the first voltage; the amplitude of the second indication signal is positively correlated with the third voltage;

or, the first indication signal and the second indication signal are both digital signals, the first indication signal includes the first voltage, and the second indication signal includes the third voltage.

14. The apparatus of claim 7, wherein the first indicator signal and the second indicator signal are both analog signals; the amplitude of the first indication signal is positively correlated with the first voltage; the amplitude of the second indication signal is positively correlated with the third voltage;

or, the first indication signal and the second indication signal are both digital signals, the first indication signal includes the first voltage, and the second indication signal includes the third voltage.

15. The apparatus of claim 8, wherein the first indicator signal and the second indicator signal are both analog signals; the amplitude of the first indication signal is positively correlated with the first voltage; the amplitude of the second indication signal is positively correlated with the third voltage;

or, the first indication signal and the second indication signal are both digital signals, the first indication signal includes the first voltage, and the second indication signal includes the third voltage.

16. An electronic device, comprising: the apparatus for adjusting voltage according to any one of claims 1 to 15.

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