CN213365350U - Power supply adjusting circuit and adjustable power supply system - Google Patents
Power supply adjusting circuit and adjustable power supply system Download PDFInfo
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- CN213365350U CN213365350U CN202022782760.6U CN202022782760U CN213365350U CN 213365350 U CN213365350 U CN 213365350U CN 202022782760 U CN202022782760 U CN 202022782760U CN 213365350 U CN213365350 U CN 213365350U
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Abstract
The utility model provides a power supply system with adjustable power supply adjustment circuit and. The adjustable power supply system comprises a power module, a device power supply and a control circuit. The device power supply performs a power supply operation according to the operating voltage and provides a supply power to a Device Under Test (DUT). The control circuit outputs an adjusting signal to the power supply module according to the power utilization condition of the device to be tested. The power supply module generates a working voltage according to the adjustment signal, and the first power consumption generated by the device power supply is smaller than the preset power. Therefore, the utility model discloses can make device power supply can provide high voltage and high current output to the device under test.
Description
Technical Field
The present invention relates to a power supply device, and more particularly to a power supply adjusting circuit and an adjustable power supply system.
Background
Referring to fig. 1, which is a schematic Power Supply diagram of a Device under test, most of the conventional Device Power Supply (DPS) 10 in fig. 1 can bear maximum Power consumption of about 10W, but in order to meet the high current requirement of the Device under test 12, the operating voltage VDD of the Device Power Supply 10 can be set to 10V, so that the Device Power Supply 10 can stably provide Supply voltages-1V to 7V and a Supply current of 0.7A to the Device under test 12. Although the device power supply 10 can withstand a certain power consumption, as the power consumption of the device power supply 10 increases, the temperature of the device power supply 10 also increases, so that the device power supply 10 must be cooled by a heat dissipation structure.
However, with the requirement of the dut 12 for high current, the device power supply 10 provides the dut 12 with the supply current 1A, and the device power supply 10 provides the dut 12 with the supply voltage 0V to 3.7V, so that the device power supply 10 can effectively dissipate heat through the existing heat dissipation structure. However, due to the limitation of the heat dissipation structure, the conventional device power supply 10 is obviously unable to simultaneously satisfy the high voltage or high current requirements of different devices under test.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a power supply adjusting circuit, adjustable power supply system and method are provided to the not enough of prior art, can be according to the power consumption situation automatic control device power supply's of the device under test power supply situation.
An embodiment of the utility model provides a power supply system with adjustable, including power module, device power supply ware and control circuit. The device power supply is electrically connected with the power supply module, executes power supply operation according to the working voltage and provides a supply power to a Device Under Test (DUT). The control circuit outputs an adjusting signal according to the power utilization condition of the device to be tested, so that the power supply module generates working voltage according to the adjusting signal, and the first power consumption generated by the power supply of the device is smaller than the preset power; when the power consumption condition of the device to be tested is that the first power consumption generated by the device power supply is larger than the default power, the control circuit outputs the adjusting signal, and when the power consumption condition of the device to be tested is that the first power consumption generated by the device power supply is smaller than the default power, the control circuit stops outputting the adjusting signal.
In one embodiment, the power supply device further comprises a detection circuit electrically connected to the control circuit, the detection circuit detecting the power consumption of the device under test and outputting a power supply detection result to the control circuit.
In one embodiment, the control circuit calculates a second power consumption of the device under test and a first power consumption of the device power supply according to the power detection result, wherein the detection circuit is a voltage detector or a current detector.
In an embodiment, the adjustment signal is used for increasing or decreasing a working voltage of a device power supply provided by the power module, so that the first power consumption is smaller than the default power, and a supply power provided by the device power supply comprises a supply voltage and a supply current.
In one embodiment, when the device power supply provides a fixed supply current to the device under test, when the supply voltage provided by the device power supply to the device under test is converted from a first supply voltage to a second supply voltage, the control circuit relatively outputs an adjustment signal to control the power module to convert the working voltage provided by the device power supply to the device under test from a first working voltage to a second working voltage, and when the supply voltage provided by the device power supply to the device under test is converted from the second supply voltage to a supply voltage, the control circuit relatively outputs an adjustment signal to control the power module to convert the working voltage provided by the device power supply to the device under test from the second working voltage to the first working voltage, wherein the second supply voltage is greater than the first supply voltage and the second working voltage is greater than the first working voltage.
In an embodiment, a difference between the first supply voltage and the first operating voltage is the same as a difference between the second supply voltage and the second operating voltage.
In an embodiment, the power supply further includes a temperature detector electrically connected to the control circuit, and the control circuit controls the power module to reduce the operating voltage when the temperature of the power supply of the device detected by the temperature detector exceeds a predetermined temperature.
The temperature detector is electrically connected with the control circuit, and the control circuit controls the power module to reduce the working voltage when the temperature of the power supply of the temperature detector detection device exceeds a default temperature.
An embodiment of the utility model provides a power supply adjustment circuit is applicable to and carries out power control to a power module and a device power supply, and power module provides a operating voltage and gives device power supply, and device power supply carries out the power supply operation and provides a power supply and gives one and treat the side device according to operating voltage. The power supply adjusting circuit comprises a detection circuit and a control circuit. The detection circuit detects the power consumption condition of the device to be detected and outputs a power supply detection result. The control circuit is electrically connected with the detection circuit and outputs an adjusting signal to control the power supply module according to the power supply detection result, so that the power supply module generates working voltage according to the adjusting signal and first power consumption generated by the power supply of the device is smaller than preset power. The control circuit calculates a second power consumption of the device to be tested and a first power consumption of the device power supply according to the power detection result, outputs the adjustment signal when the first power consumption is larger than the default power, and stops outputting the adjustment signal when the first power consumption is smaller than the default power.
In an embodiment, the adjustment signal is used to make the first power consumption less than the predetermined power after increasing or decreasing the working voltage of the power supply of the power module providing device.
In an embodiment, the power supply further includes a temperature detector electrically connected to the control circuit, and the control circuit controls the power module to reduce the operating voltage when the temperature of the power supply of the device detected by the temperature detector exceeds a predetermined temperature.
To sum up, the embodiment of the utility model provides a power supply adjustment circuit and adjustable power supply system device power supply's power consumption can be according to the automatic relative adjustment of the power consumption situation of the device under test for device power supply can be stable provide high voltage and high current in order to satisfy different device under test's power consumption demand, and can effectively reduce the heat dissipation burden.
For a further understanding of the nature and technical content of the present invention, reference should be made to the following detailed description and accompanying drawings, which are provided for reference and illustration purposes only and are not intended to limit the invention.
Drawings
Fig. 1 is a schematic diagram of power supply to a device under test.
Fig. 2 is a functional block diagram of an adjustable power supply system according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating an adjustable power supply method according to an embodiment of the present invention.
Fig. 4 is a functional block diagram of an adjustable power supply system according to an embodiment of the present invention.
Fig. 5 is a flowchart illustrating an adjustable power supply method according to an embodiment of the present invention.
Detailed Description
The following embodiments of the present invention are described with reference to specific examples, and those skilled in the art can understand the advantages and effects of the present invention from the contents provided in the present specification. The present invention may be practiced or carried out in other different embodiments, and various modifications and changes may be made in the details of this description based on the different points of view and applications without departing from the spirit of the present invention. The drawings of the present invention are merely schematic illustrations, and are not drawn to scale, but are described in advance. The following embodiments will further explain the related art of the present invention in detail, but the contents are not provided to limit the scope of the present invention.
It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are used primarily to distinguish one element from another element or from one signal to another signal. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.
The embodiment of the utility model provides a Power Supply system with adjustable Power Supply adjustment circuit and, through the Power consumption who detects the load end, further learn to provide the Device Power Supply (Device Power Supply, DPS) Power consumption itself that the load end used at present according to the testing result, and can initiatively through an adjustment mechanism in order to transfer the Power consumption who falls Device Power Supply, borrow this and make the work ability of Device Power Supply stable and can alleviate the heat dissipation burden, and Device Power Supply can provide high voltage output and high current output in order to satisfy various Device under test's Power demands.
[ example of Adjustable Power supply System ]
Referring to fig. 2, fig. 2 is a functional block diagram of an adjustable power supply system according to an embodiment of the present invention. The adjustable power supply system 2 of the present embodiment includes, but is not limited to, a power module 20, a device power supply 22, a control circuit 24, and a detection circuit 26. The power aspects of the adjustable power supply system 2 described herein are illustrated, but not limited to, a Device Under Test (DUT) in a test system. The power module 20 is electrically connected to the device power supply 22, the device power supply 22 is electrically connected to the device under test 3, the detection circuit 26 is electrically connected to the device under test 3, and the control circuit 24 is electrically connected to the detection circuit 26 and the power module 20.
Further, the power module 20 can provide an operating voltage VDD to the device power supply 22, and the device power supply 22 performs power supply operation according to the operating voltage VDD. The device power supply 22 can provide different power supplies according to the power supply requirements of different devices under test 3. For example, the supply power provided by the device power supply 22 may be set or operated to provide different supply voltages Vo or supply currents Io for the device under test 3. The specific power supply structure of the device power supply 22 is well known to those skilled in the art and therefore will not be described in detail herein.
The control circuit 24 relatively outputs an adjustment signal to the power module 20 according to the power consumption condition of the device under test 3, wherein the adjustment signal is used for adjusting the operating voltage VDD output by the power module 20 to the device power supply 22. For example, assume that the power consumption of the device power supply 22 is a first power consumption, the power consumption of the device under test 3 is a second power consumption, and the sum of the first power consumption and the second power consumption is equal to the total power consumption, which is the operating voltage of the device power supply 22 multiplied by VDD to the supply current Io provided by the device power supply 22 to the device under test 3. Therefore, when the total power consumption is a fixed value, the first power consumption becomes relatively large when the second power consumption becomes small, i.e., the device under test 3 is lightly loaded. However, the excessive first power consumption may cause the device power supply 22 to increase in temperature or exceed the tolerable power, so that the operation is unstable, and the control circuit 24 in this embodiment can adjust the power consumption of the device power supply 22 to be within a reasonable safety range smaller than the predetermined power by adjusting the signal, for example, the default power is the power that enables the device power supply 22 to operate stably, but the invention is not limited thereto.
Specifically, when the control circuit 24 knows that the power consumption of the device power supply 22 is greater than the default power according to the power consumption status of the device 3 to be tested, the control circuit 24 outputs an adjustment signal to the power module 20 accordingly, so that the power module 20 adjusts the working voltage VDD provided to the device power supply 22 according to the adjustment signal, thereby enabling the adjusted working voltage VDD to enable the power consumption of the device power supply 22 to be less than the preset power. In addition, when the control circuit 24 knows that the power consumption of the device power supply 22 is less than the default power according to the power consumption condition of the device under test 3, the control circuit 24 will not output the adjustment signal, i.e. the device power supply 22 can normally operate at this time.
In one embodiment, the control circuit 24 can obtain the power consumption condition of the device under test 3 through the detection circuit 26, wherein the power consumption condition refers to the power consumption, voltage or current of the device under test 3 itself. For example, the control circuit 24 can obtain the power supply of the device under test 3 through the detection circuit 26, and the control circuit 24 can obtain the power consumption of the device under test 3 according to the power supply calculation. The detection circuit 26 may be, for example, various combinations of voltage detectors or current detectors.
For example, the control circuit 24 may know the power supply of the device under test 3 in the following ways. When the control circuit 24 knows the supply current Io provided by the device power supply 22 to the device under test 3, the control circuit 24 can detect the supply voltage Vo provided by the device power supply 22 to the device under test 3 through the voltage detector in the detection circuit 26. Alternatively, when the control circuit 24 knows the supply voltage Vo supplied by the device power supply 22 to the device under test 3, the control circuit 24 may detect the supply current Io supplied by the device power supply 22 to the device under test 3 through the current detector in the detection circuit 26. Alternatively, the control circuit 24 may detect the supply voltage Vo and the supply current Io provided by the device power supply 22 to the device under test 3 through a voltage detector and a current detector of the detection circuit 26, respectively. Finally, the control circuit 24 can obtain the power consumption of the device under test 3 according to the multiplied result of the supply voltage Vo and the supply current Io.
Therefore, when the control circuit 24 knows the power detection result of the dut 3, the first power consumption of the device power supply 22 and the second power consumption of the dut 3 can be calculated accordingly. The first power consumption is calculated by, for example, subtracting the supply voltage Vo provided by the device power supply 22 to the device under test 3 from the working voltage VDD provided by the device power supply 22 to obtain a voltage difference, and multiplying the voltage difference by the supply current Io provided by the device power supply 22 to the device under test 3 to obtain the first power consumption, wherein the working voltage VDD is greater than the supply voltage Vo in practice. The second power consumption is calculated by multiplying the supply voltage Vo supplied from the device power supply 22 to the device under test 3 by the supply current Io. The present invention is not limited to the above-described example for calculating the first power consumption and the second power consumption.
In addition, in an embodiment, the control circuit 24 and the detection circuit 26 may be used as power adjustment circuits for the power module 20 and the device power supply 22, and the control circuit 24 adjusts the power provided by the power module 20 to the device power supply 22 according to the detection result of the detection circuit 26, so that the power consumption of the device power supply 22 can be relatively maintained within the predetermined power range for normal operation according to the power consumption condition of the device 3.
[ example of Adjustable Power supply method ]
Please refer to fig. 3. Fig. 3 is a flowchart of an adjustable power supply method according to an embodiment of the present invention. The flowchart shown in fig. 3 is illustrated in the architecture of fig. 2, but is not limited thereto. The flow shown in fig. 3 includes the following steps.
In step S301, the dut 3 is detected. The control circuit 24 controls the detection circuit 26 to detect the power consumption condition of the device under test 3, so as to obtain the supply voltage Vo or the supply current provided by the device power supply 22 to the device under test 3.
In step S303, the power consumption of the dut 3 is calculated. The control circuit 24 can calculate the current power consumption of the device under test 3 according to the detection result of step S301.
In step S305, it is determined whether the power consumption of the device power supply 22 is less than a predetermined power. When the control circuit 24 knows the power consumption of the device 3 to be tested, the power consumption of the device power supply 22 can be further calculated according to the power consumption of the device to be tested, and the power consumption of the device power supply 22 is compared with the preset power to know whether the power consumption of the device power supply 22 is less than the preset power.
In step S307, an adjustment signal is output. When the determination in step S305 is negative, which represents that the power consumption of the device power supply 22 is greater than the preset power, the control circuit 24 outputs an adjustment signal to the power module 20, so that the power module 20 adjusts the working voltage VDD provided to the device power supply 22 according to the adjustment signal, for example, the working voltage is increased or decreased, and finally the power consumption of the device power supply 22 according to the adjusted working voltage VDD is smaller than the preset power. When the step S305 determines yes, the process returns to the step S301 to continue.
In the above embodiment, the control circuit 24 can know whether the power consumption of the device power supply 22 is less than the default power according to the detection result of the detection circuit 26, and when the power consumption of the device power supply 22 is greater than the default power, the control circuit 24 outputs the adjustment signal to reduce the power consumption of the device power supply 22 to be less than the predetermined power through the power module 20.
It is noted that, in another embodiment, the control circuit 24 may also adjust the power consumption of the device power supply 22 by using a table lookup. Examples are as follows.
The following table provides the corresponding conditions of the detection voltage Vd and the working voltage VDD, wherein the detection voltage Vd is the detection result of the detection circuit 26 detecting the supply voltage Vo of the device under test 3, and the working voltage VDD is the voltage used by the device power supply 22 for operation, and meanwhile, it is assumed that the device power supply 22 provides a fixed 1.2A as the supply current Io for the device under test 3.
| Vd | 0V | 1V | 2V | 3V | 4V | 5V | 6V | 7V |
| VDD | 3V | 4V | 5V | 6V | 7V | 8V | 9V | 10V |
| Vd | 8V | 9V | 10V | 11V | 12V | 13V | 14V | 15V |
| VDD | 11V | 12V | 13V | 14V | 15V | 16V | 17V | 18V |
Watch 1
In the first table, when Vd is 0V, VDD is 3V, when Vd is 1V, VDD is 4V … …, and when Vd is 15V, VDD is 18V. This table one may be stored in control circuit 24 for use in table lookup.
For example, when the control circuit 24 detects that the detection voltage Vd is 0V through the detection circuit 26, the control circuit 24 outputs an adjustment signal to the power module 20 after looking up the table, and the adjustment signal is used to control the power module 20 to adjust the supply voltage VDD outputted to the device power supply 22 to be 3V.
When the control circuit 24 detects that the detection voltage Vd is 1V through the detection circuit 26, the control circuit 24 outputs an adjustment signal to the power module 20 after looking up the table, and the adjustment signal is used to control the power module 20 to adjust the supply voltage VDD outputted to the device power supply 22 to be 4V.
And detecting results of other detection voltages Vd, and so on. That is, the control circuit 24 can effectively control the power consumption of the device power supply 22 to be less than a predetermined power, for example, 3W, by looking up the table, and the device power supply 22 can work normally and stably when meeting the requirements of high voltage and high current output by cooperating with the heat dissipation design of the device power supply 22.
Therefore, by means of the design of table one, when the supply voltage provided by the device power supply 22 to the device under test 3 is changed from a first supply voltage to a second supply voltage, the control circuit 24 correspondingly outputs the adjustment signal to control the power module 20 to change the working voltage provided by the device power supply 24 from a first working voltage to a second working voltage. And when the supply voltage provided by the device power supply 22 to the device under test 3 is converted from the second supply voltage to the first supply voltage, the control circuit 24 relatively outputs the adjustment signal to control the power module 20 to convert the working voltage provided by the device power supply 22 from the second working voltage to the first working voltage, wherein the second supply voltage is greater than the first supply voltage and the second working voltage is greater than the first working voltage, and the difference between the first supply voltage and the first working voltage is the same as the difference between the second supply voltage and the second working voltage. The first table is used to describe how the control circuit 24 controls the operating voltage VDD output by the power module 20 through table lookup, but the voltages in the first table are only for illustration and the invention is not limited thereto.
[ Another embodiment of an adjustable power supply system with temperature detection ]
Please refer to fig. 4. Fig. 4 is a functional block diagram of an adjustable power supply system according to an embodiment of the present invention. The adjustable power supply system 4 shown in fig. 4 is further provided with a temperature detector 28 compared to the adjustable power supply system 2 shown in fig. 2, and the description is provided for the temperature detector 28, and the related functional operations of the remaining components can refer to the foregoing description.
The temperature detector 28 is electrically connected to the device power supply 22 and the control circuit 24. The temperature detector 28 is used for detecting the operating temperature of the device power supply 22 and outputting a temperature detection result to the control circuit 24. When the control circuit 24 receives the temperature detection result of the temperature detector 28, the control circuit 24 can obtain the operating temperature of the device power supply 22, and further determine whether the operating temperature of the device power supply 22 exceeds the default temperature.
When the operating temperature of the device power supply 22 exceeds the default temperature, the control circuit 24 performs a cooling operation on the device power supply 22 through the power module 20. For example, the control circuit 24 may control the power module 20 to decrease the working voltage output to the device power supply 22, so that the device power supply 22 can achieve the temperature reduction effect when the working voltage is decreased. The manner of reducing the operating voltage is, for example, reducing 1V at each time, but the present invention is not limited thereto.
[ Another embodiment of an adjustable power supply method ]
Please refer to fig. 5. Fig. 5 is a flowchart of an adjustable power supply method according to an embodiment of the present invention. The flowchart shown in fig. 5 is illustrated in the architecture of fig. 4, but is not limited thereto. The flow shown in fig. 5 includes the following steps.
In step S501, the device under test 3 is detected.
In step S503, the power consumption of the dut 3 is calculated.
In step S505, it is determined whether the power consumption of the device power supply 22 is less than a predetermined power.
In step S507, an adjustment signal is output. When the determination in step S505 is no, the control circuit 24 outputs an adjustment signal to the power module 20, and the power module 20 adjusts the operating voltage provided to the device power supply 22 according to the adjustment signal. If yes in step S505, step S509 is executed.
In step S509, the temperature of the device power supply 22 is detected. The control circuit 24 detects the temperature condition of the device power supply 22 via the temperature detector 28.
In step S511, it is determined whether the operating temperature of the device power supply 22 is less than the default temperature. According to the detection result of step S509, the control circuit 24 can know the operating temperature of the device power supply 22, and compare the operating temperature with the default temperature.
In step S513, the operating voltage is decreased. If the determination in step S511 is negative, it means that the current operating temperature of the device power supply 22 exceeds the default temperature, so the control circuit 24 will perform a cooling operation on the device power supply 22. For example, the control circuit 24 controls the power module 20 to decrease the operating voltage VDDD, so that the operating temperature of the device power supply 22 decreases accordingly.
When the determination in step S511 is yes, step S501 is performed.
In an embodiment, the control circuit 101 may be, for example, one or any combination of an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a system on a chip (SOC), and may cooperate with other related circuit components and cooperate with firmware to implement the above-described functional operations.
[ advantageous effects of the embodiments ]
The utility model provides a power supply system with adjustable power supply adjustment circuit and, through the power consumption situation of active detection device to be tested, and the operating voltage of corresponding adjustment power module output, make the power consumption of device power supply itself can be controlled in default power, borrow this and make device power supply can be according to the power consumption demand of different device to be tested, to its high voltage output respectively, high current output or other power supply output, and can ensure that device power supply can stabilize normal work, still can alleviate the heat dissipation burden.
The above-mentioned contents are only preferred and feasible embodiments of the present invention, and are not intended to limit the claims of the present invention, so that all the equivalent technical changes made by using the contents of the specification and the drawings of the present invention are included in the claims of the present invention.
Claims (10)
1. An adjustable power supply system, comprising:
the power supply module provides a working voltage;
the device power supply is electrically connected with the power module, performs power supply operation according to the working voltage and provides a supply power to a device to be tested; and
the control circuit outputs an adjusting signal to control the power supply module according to a power utilization condition of the device to be tested;
when the power consumption condition of the device to be tested is that a first power consumption generated by the power supply of the device is larger than a preset power, the control circuit outputs the adjusting signal, so that the power module generates the working voltage according to the adjusting signal, and the first power consumption generated by the power supply of the device is smaller than the preset power; when the power consumption condition of the device to be tested is that the first power consumption generated by the power supply of the device is smaller than the preset power, the control circuit stops outputting the adjusting signal.
2. The adjustable power supply system according to claim 1, further comprising a detection circuit electrically connected to the control circuit, the detection circuit detecting a power consumption status of the dut and outputting a power detection result to the control circuit.
3. The adjustable power supply system according to claim 2, wherein the control circuit calculates a second power consumption of the device under test and the first power consumption of the device power supply according to the power detection result, wherein the detection circuit is a voltage detector or a current detector.
4. The adjustable power supply system according to claim 2, wherein the adjustment signal is used to make the first power consumption less than a default power after the power module provides the working voltage of the device power supply, and the supply power provided by the device power supply comprises a supply voltage and a supply current.
5. The adjustable power supply system according to claim 4, wherein when the device power supply provides a constant supply current to the device under test, when the supply voltage provided by the device power supply to the device under test is changed from a first supply voltage to a second supply voltage, the adjustment signal outputted by the control circuit controls the power module to change the operating voltage provided by the device power supply from a first operating voltage to a second operating voltage, and when the supply voltage provided by the device power supply to the device under test is changed from the second supply voltage to the first supply voltage, the adjustment signal outputted by the control circuit controls the power module to change the operating voltage provided by the device power supply from the second operating voltage to the first operating voltage, wherein the second supply voltage is greater than the first supply voltage and the second operating voltage is greater than the first operating voltage.
6. The adjustable power supply system according to claim 5, wherein the difference between the first supply voltage and the first operating voltage is the same as the difference between the second supply voltage and the second operating voltage.
7. The adjustable power supply system according to claim 1, further comprising a temperature detector electrically connected to the control circuit, wherein the control circuit controls the power module to lower the operating voltage when the temperature detector detects that the temperature of the power supply exceeds a predetermined temperature.
8. A power supply regulating circuit is suitable for carrying out power supply control on a power supply module and a device power supply, the power supply module provides a working voltage for the device power supply, the device power supply executes power supply operation according to the working voltage and provides a supply power for a device to be tested, and the power supply regulating circuit is characterized by comprising:
the detection circuit detects the power consumption condition of the device to be detected and outputs a power supply detection result; and
the control circuit is electrically connected with the detection circuit and outputs an adjusting signal to control the power supply module according to the power supply detection result, so that the power supply module generates the working voltage according to the adjusting signal and a first power consumption generated by the power supply of the device is smaller than a preset power;
the control circuit calculates a second power consumption of the device to be tested and the first power consumption of the device power supply according to the power detection result, outputs the adjustment signal when the first power consumption is larger than the default power, and stops outputting the adjustment signal when the first power consumption is smaller than the default power.
9. The power regulation circuit of claim 8 wherein the regulation signal is configured to cause the first power consumption to be less than the predetermined power after the power module provides the operating voltage of the device power supply.
10. The power regulation circuit of claim 8 further comprising a temperature detector electrically connected to the control circuit, wherein the control circuit controls the power module to reduce the operating voltage when the temperature detector detects that the temperature of the device power supply exceeds a predetermined temperature.
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| CN202022782760.6U CN213365350U (en) | 2020-11-26 | 2020-11-26 | Power supply adjusting circuit and adjustable power supply system |
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| CN202022782760.6U CN213365350U (en) | 2020-11-26 | 2020-11-26 | Power supply adjusting circuit and adjustable power supply system |
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