Power consumption control circuit

Abstract

The invention discloses a power consumption control circuit which comprises an output tube, a mirror image module and an adjusting module. The first end of the output tube is connected with a power supply voltage, the second end of the output tube is connected with an external load to provide an output current, the adjusting module is connected with the second end of the output tube and the external load, and the adjusting module generates a first voltage based on the change of the current required by the external load; the mirror image module is connected with the adjusting module and the control end of the output tube so as to adjust the magnitude of the output current based on the first voltage and feed back and adjust the magnitude of the first voltage. According to the power consumption control circuit, the power supply mode that a common load circuit directly supplies power through a power source is changed, meanwhile, a feedback mechanism and a power consumption limiting function are added, the power consumption change requirement of an external load can be actively responded, and the needed current can be provided; and meanwhile, power consumption waste caused by uncontrolled through current between a power supply and the ground in a traditional circuit is limited and dynamically adjusted.

Description

Technical Field

[0001] The invention belongs to the technical field of integrated circuits, and in particular relates to a power consumption control circuit. Background Art

[0002] As the process nodes are gradually reduced and the power consumption of chips is gradually reduced, the demand for power consumption control of circuits is becoming more and more obvious while ensuring the functional performance of chips. This demand is common in different application scenarios such as existing circuit structures or newly designed circuit structures.

[0003] Therefore, in view of the above technical problems, it is necessary to provide a power consumption control circuit, which can realize power consumption control without modifying the existing circuit.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] An object of the present invention is to provide a power consumption control circuit, which can reduce the power consumption of the circuit.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0007] A power consumption control circuit, characterized in that it includes an output tube, a mirror module and a regulating module, wherein the first end of the output tube is connected to a power supply voltage, the second end of the output tube is connected to an external load to provide an output current, the regulating module is connected to the second end of the output tube and the external load, the regulating module generates a first voltage based on a change in the current required by the external load, the mirror module is connected to the regulating module and the control end of the output tube to adjust the magnitude of the output current based on the first voltage, and feedback adjusts the magnitude of the first voltage.

[0008] In one or more embodiments of the present invention, the mirror module includes a first mirror unit and a second mirror unit, the first mirror unit is connected to the regulation module and the control end of the output tube to generate a first current based on the first voltage and adjust the magnitude of the output current, and the second mirror unit is connected to the first mirror unit and the regulation module to adjust the magnitude of the first voltage based on the first current.

[0009] In one or more embodiments of the present invention, the first mirror unit includes a first transistor and a second transistor, the first end of the first transistor and the first end of the second transistor are connected to the power supply voltage, the control end of the first transistor, the second end of the first transistor, and the control end of the second transistor are connected to the control end of the regulation module and the output tube to receive the first voltage and adjust the output current based on the first voltage, and the second end of the second transistor is connected to the second mirror unit to generate the first current.

[0010] In one or more embodiments of the present invention, the second mirror unit includes a third transistor and a fourth transistor, the first end of the third transistor and the first end of the fourth transistor are connected to the ground voltage, the control end of the third transistor, the second end of the third transistor, and the control end of the fourth transistor are connected to the first mirror unit to receive the first current, and the second end of the fourth transistor is connected to the regulating module to regulate the magnitude of the first voltage.

[0011] In one or more embodiments of the present invention, the regulating module includes a fifth transistor and a first current source, the second end of the fifth transistor is connected to the power supply voltage, the control end of the fifth transistor is connected to the second end of the output tube and the external load, the first end of the fifth transistor is connected to the first end of the first current source and the mirror module to generate a first voltage, and the second end of the first current source is connected to the ground voltage.

[0012] In one or more embodiments of the present invention, the regulation module includes a current unit, a second current source and a third mirror unit, the current unit is connected to the second end of the output tube and the external load to generate a second current based on the output current and the current required by the external load, the first end of the second current source is connected to the power supply voltage, the second current source is used to generate a bias current, the third mirror unit is connected to the second end of the second current source and the current unit to receive the bias current and the second current, and the third mirror unit is connected to the mirror module to generate a first voltage based on the bias current and the second current.

[0013] In one or more embodiments of the present invention, the current unit includes a first current mirror and a second current mirror, wherein the first current mirror is connected to the second end of the output tube and the external load to generate a reference current based on the output current and the current required by the external load, and the second current mirror is connected to the first current mirror to replicate the reference current to generate a second current.

[0014] In one or more embodiments of the present invention, the first current mirror includes a sixth transistor and a seventh transistor, the first end of the sixth transistor and the first end of the seventh transistor are connected to the ground voltage, the control end of the sixth transistor, the second end of the sixth transistor, and the control end of the seventh transistor are connected to the second end of the output tube and the external load, and the second end of the seventh transistor is connected to the second current mirror to generate a reference current.

[0015] In one or more embodiments of the present invention, the second current mirror includes an eighth transistor and a ninth transistor, the first end of the eighth transistor and the first end of the ninth transistor are connected to the power supply voltage, the second end of the eighth transistor, the control end of the eighth transistor, and the control end of the ninth transistor are connected to the first current mirror to receive a reference current, and the second end of the ninth transistor is connected to the third mirror unit to generate a second current.

[0016] In one or more embodiments of the present invention, the third mirror unit includes a tenth transistor and an eleventh transistor, the first end of the tenth transistor and the first end of the eleventh transistor are connected to the ground voltage, the second end of the tenth transistor, the control end of the tenth transistor, and the control end of the eleventh transistor are connected to the second end of the current unit and the second current source to receive the bias current and the second current, and the second end of the eleventh transistor is connected to the mirror module to generate the first voltage.

[0017] Compared with the prior art, the power consumption control circuit of the present invention changes the power supply mode of the commonly used load circuit directly powered by the power supply, and at the same time adds a feedback mechanism and a power consumption limiting function, which can actively respond to the power consumption change requirements of the external load and provide the required current, and limit and dynamically adjust the power consumption waste caused by the uncontrolled through-current between the power supply and the ground in the traditional circuit. At the same time, since the power consumption control circuit of the present invention provides current supply to the external load based on its requirements, it will not limit the voltage value on the node connecting the external load to the power consumption control circuit, and has flexible application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 4 is a circuit schematic diagram of the power consumption control circuit in the first embodiment of the present invention.

[0020] Figure 2 This is a circuit schematic diagram of the power consumption control circuit in the second embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0022] "Coupled" or "connected" or "connected" in the specification includes both direct connection and indirect connection. Indirect connection is a connection through an intermediate medium, such as a connection through an electrically conductive medium, which may have parasitic inductance or parasitic capacitance; indirect connection may also include connection through other active or passive devices on the basis of achieving the same or similar functional purposes, such as connection through circuits or components such as switches and follower circuits. In addition, in the invention, words such as "first" and "second" are mainly used to distinguish one technical feature from another technical feature, and do not necessarily require or imply that there is a certain actual relationship, quantity or order between these technical features.

[0023] In the detailed description of the specification, reference is made to the accompanying drawings forming a part thereof, wherein like reference numerals refer to like parts throughout, and wherein are shown by way of exemplary embodiments that may be implemented. It should be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present disclosure. Therefore, the following detailed description should not be considered in a limiting sense.

[0024] The various operations in the specification may be described in turn as multiple discrete actions or operations in a manner that is most helpful in understanding the claimed subject matter. However, the order of description should not be interpreted as implying that these operations must be order-dependent. Specifically, these operations may not be performed in the order presented. The described operations may be performed in an order different from the described embodiments. Various additional operations may be performed and / or the described operations may be omitted in additional embodiments.

[0025] For purposes of this disclosure, the phrase "A and / or B" means (A), (B), or (A and B). For purposes of this disclosure, the phrase "A, B and / or C" means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B and C).

[0026] Various components and devices may be referred to or shown in the singular form in this document (for example, "MOS tube", "transistor", "switch", etc.), but this is only for convenience of discussion, and any element mentioned in the singular form may include multiple such elements according to the teachings of this document.

[0027] The specification describes the use of the phrases "in one embodiment" or "in other embodiments" or "in some embodiments", which may each refer to one or more of the same or different embodiments. In addition, the terms "including", "comprising", "having", etc. used in relation to the embodiments of the present disclosure are synonymous.

[0028] Embodiment 1

[0029] like Figure 1 As shown, the power consumption control circuit in the first embodiment of the present invention includes an output tube K1 , a mirror module 10 and a regulating module 20 .

[0030] Among them, the first end of the output tube K1 is connected to the power supply voltage, the second end of the output tube K1 is connected to the external load to provide the output current Iout, the adjustment module 20 is connected to the second end of the output tube K1 and the external load, the adjustment module 20 generates the first voltage V1 based on the change of the current I0 required by the external load, and the mirror module 10 is connected to the adjustment module 20 and the control end of the output tube K1 to adjust the size of the output current Iout based on the first voltage V1, and feedback adjusts the size of the first voltage V1.

[0031] In one embodiment, the external load can be any circuit that needs to achieve effective power consumption control, such as a comparator, an inverter, a trigger, a digital logic circuit, a high-speed flip-flop signal processing circuit, etc. This solution does not limit the specific form of the external load. The external load can also be another power consumption control circuit in this application, that is, through a nested manner, the first power consumption control circuit supplies power to the second power consumption control circuit and realizes power consumption control, and the second power consumption control circuit then supplies power to the external load and realizes power consumption control of the external load circuit, which can play a role in expanding the adjustment range and stabilizing power.

[0032] Specifically, the regulating module 20 includes a fifth transistor M5 and a first current source Ib1. The second end of the fifth transistor M5 is connected to the power supply voltage, the control end of the fifth transistor M5 is connected to the second end of the output tube K1 and the external load, the first end of the fifth transistor M5 is connected to the first end of the first current source Ib1 and the mirror module 10 to generate the first voltage V1, and the second end of the first current source Ib1 is connected to the ground voltage.

[0033] The mirror module 10 includes a first mirror unit and a second mirror unit. The first mirror unit is connected to the first end of the fifth transistor M5 and the control end of the output tube K1 to generate a first current I1 based on the first voltage V1 and adjust the magnitude of the output current Iout, and the second mirror unit is connected to the first mirror unit and the first end of the fifth transistor M5 to adjust the magnitude of the first voltage V1 based on the first current I1.

[0034] The first mirror unit includes a first transistor M1 and a second transistor M2. The first end of the first transistor M1 and the first end of the second transistor M2 are connected to the power supply voltage, the control end of the first transistor M1, the second end of the first transistor M1, and the control end of the second transistor M2 are connected to the first end of the fifth transistor M5 and the control end of the output tube K1 to receive the first voltage V1 and adjust the magnitude of the output current Iout based on the first voltage V1, and the second end of the second transistor M2 is connected to the second mirror unit to generate the first current I1.

[0035] The second mirror unit includes a third transistor M3 and a fourth transistor M4. A first end of the third transistor M3 and a first end of the fourth transistor M4 are connected to a ground voltage, a control end of the third transistor M3, a second end of the third transistor M3, and a control end of the fourth transistor M4 are connected to a second end of the second transistor M2 to receive a first current I1, and a second end of the fourth transistor M4 is connected to a first end of a fifth transistor M5 to adjust the magnitude of the first voltage V1.

[0036] In one embodiment, the output tube K1, the first transistor M1, and the second transistor M2 are all PMOS tubes, and the third transistor M3, the fourth transistor M4, and the fifth transistor M5 are all NMOS tubes. In other embodiments, the output tube K1, the first transistor M1, and the second transistor M2 may also be NMOS tubes or other devices, and the third transistor M3, the fourth transistor M4, and the fifth transistor M5 may also be PMOS tubes or other devices, and their connection methods are adaptively adjusted.

[0037] The first end of each of the above-mentioned tubes refers to the source, the second end of each of the above-mentioned tubes refers to the drain, and the control end of each of the above-mentioned tubes refers to the gate.

[0038] In one embodiment, the above-mentioned tubes all operate in the saturation region.

[0039] In actual operation, the output tube K1 can generate an output current Iout to supply the external load based on its own opening, and the magnitude of the output current Iout can be adjusted by adjusting the voltage of the control terminal of the output tube K1. In a balanced state, the current I0 required by the external load is the output current Iout of the output tube K1. When the power supply demand of the external load suddenly increases, the current I0 required by the external load suddenly increases, and the voltage of the control terminal of the fifth transistor M5 will be pulled down, causing the first voltage V1 on the first terminal of the fifth transistor M5 to also be pulled down.

[0040] As the first voltage V1 is pulled down, the VGS of the first transistor M1 increases, and the current on the first transistor M1 also increases. The second transistor M2 and the output tube K1 form a current mirror with the first transistor M1, and the output current Iout and the first current I1 increase along with the current on the first transistor M1. Among them, the increased output current Iout is directly supplied to the external load, so that the current I0 required by the external load and the output current Iout are restored to balance, and the control terminal voltage of the fifth transistor M5 is also restored to a balanced state. As the first current I1 increases, the voltage of the second end of the third transistor M3 will also increase. Through the current mirror formed by the third transistor M3 and the fourth transistor M4, the voltage of the second end of the fourth transistor M4 increases synchronously, realizing feedback regulation to restore the first voltage V1 to a new stable potential.

[0041] When the power supply demand of the external load suddenly decreases, the above steps are repeated, and the output current Iout can also be autonomously regulated and stabilized.

[0042] In the above process, the power consumption control circuit provides current supply to the external load completely based on its demand, and does not limit the voltage value on the node where the external load is connected to the power consumption control circuit. Compared with the commonly used LDO circuit, the power supply principle is different and more flexible.

[0043] The power consumption control circuit of the present application can convert the change of the power supply demand of the external load into a voltage change in a negative feedback manner, identify the response through the mirror module 10, and adjust the output current Iout by adjusting the gate voltage of the output tube K1 to meet the new power supply demand. At the same time, through the internal loop of the mirror module 10, it is ensured that the first voltage V1 converges to a stable working state corresponding to the new demand until the next power supply demand changes. The power consumption control circuit of the present application provides the external load with the required current, and can achieve power consumption control without changing the load circuit. By actively responding to the load power supply changes, the power consumption waste caused by the uncontrolled through-current between the power supply and the ground in the traditional circuit is limited.

[0044] Embodiment 2

[0045] like Figure 2As shown, the power consumption control circuit in the second embodiment of the present invention includes an output tube K1 , a mirror module 10 and a regulating module 20 .

[0046] Among them, the first end of the output tube K1 is connected to the power supply voltage, the second end of the output tube K1 is connected to the external load to provide the output current Iout, the adjustment module 20 is connected to the second end of the output tube K1 and the external load, the adjustment module 20 generates the first voltage V1 based on the change of the current I0 required by the external load, and the mirror module 10 is connected to the adjustment module 20 and the control end of the output tube K1 to adjust the size of the output current Iout based on the first voltage V1, and feedback adjusts the size of the first voltage V1.

[0047] In one embodiment, the external load can be any circuit that needs to achieve effective power consumption control, such as a comparator, an inverter, a trigger, a digital logic circuit, a high-speed flip-flop signal processing circuit, etc. This solution does not limit the specific form of the external load. The external load can also be another power consumption control circuit in this application, that is, through a nested manner, the first power consumption control circuit supplies power to the second power consumption control circuit and realizes power consumption control, and the second power consumption control circuit then supplies power to the external load and realizes power consumption control of the external load circuit, which can play a role in expanding the adjustment range and stabilizing power.

[0048] Specifically, the regulating module 20 includes a current unit, a second current source Ib2, and a third mirror unit. The current unit is connected to the second end of the output tube K1 and the external load to generate the second current I2 based on the output current Iout and the current I0 required by the external load, the first end of the second current source Ib2 is connected to the power supply voltage, the second current source Ib2 is used to generate a bias current, the third mirror unit is connected to the second end of the second current source Ib2 and the current unit to receive the bias current and the second current I2, and the third mirror unit is connected to the mirror module 10 to generate the first voltage V1 based on the bias current and the second current I2.

[0049] The current unit includes a first current mirror I1 and a second current mirror I2. The first current mirror I1 is connected to the second end of the output tube K1 and the external load to generate a reference current Ix based on the output current Iout and the current I0 required by the external load. The second current mirror I2 is connected to the first current mirror I1 to copy the reference current Ix to generate a second current I2.

[0050] The first current mirror I1 includes a sixth transistor M6 and a seventh transistor M7, wherein a first end of the sixth transistor M6 and a first end of the seventh transistor M7 are connected to a ground voltage, a control end of the sixth transistor M6, a second end of the sixth transistor M6, and a control end of the seventh transistor M7 are connected to a second end of the output tube K1 and an external load, and a second end of the seventh transistor M7 is connected to a second current mirror I2 to generate a reference current Ix.

[0051] The second current I2 mirror includes an eighth transistor M8 and a ninth transistor M9, wherein a first end of the eighth transistor M8 and a first end of the ninth transistor M9 are connected to a power supply voltage, a second end of the eighth transistor M8, a control end of the eighth transistor M8, and a control end of the ninth transistor M9 are connected to the first current I1 mirror to receive a reference current Ix, and a second end of the ninth transistor M9 is connected to a third mirror unit to generate a second current I2.

[0052] The third mirror unit includes a tenth transistor M10 and an eleventh transistor M11, a first end of the tenth transistor M10 and a first end of the eleventh transistor M11 are connected to the ground voltage, a second end of the tenth transistor M10, a control end of the tenth transistor M10, and a control end of the eleventh transistor M11 are connected to the second end of the ninth transistor M9 and the second end of the second current source Ib2 to receive the bias current and the second current I2, and a second end of the eleventh transistor M11 is connected to the mirror module 10 to generate the first voltage V1.

[0053] like Figure 2 As shown, the mirror module 10 includes a first mirror unit and a second mirror unit. The first mirror unit is connected to the second end of the eleventh transistor M11 and the control end of the output tube K1 to generate a first current I1 based on the first voltage V1 and adjust the magnitude of the output current Iout, and the second mirror unit is connected to the first mirror unit and the second end of the eleventh transistor M11 to adjust the magnitude of the first voltage V1 based on the first current I1.

[0054] The first mirror unit includes a first transistor M1 and a second transistor M2. The first end of the first transistor M1 and the first end of the second transistor M2 are connected to the power supply voltage, the control end of the first transistor M1, the second end of the first transistor M1, and the control end of the second transistor M2 are connected to the second end of the eleventh transistor M11 and the control end of the output tube K1 to receive the first voltage V1 and adjust the magnitude of the output current Iout based on the first voltage V1, and the second end of the second transistor M2 is connected to the second mirror unit to generate the first current I1.

[0055] The second mirror unit includes a third transistor M3 and a fourth transistor M4. A first end of the third transistor M3 and a first end of the fourth transistor M4 are connected to a ground voltage, a control end of the third transistor M3, a second end of the third transistor M3, and a control end of the fourth transistor M4 are connected to a second end of the second transistor M2 to receive a first current I1, and a second end of the fourth transistor M4 is connected to a second end of the eleventh transistor M11 to adjust the magnitude of the first voltage V1.

[0056] In one embodiment, the output tube K1, the first transistor M1, the second transistor M2, the eighth transistor M8, and the ninth transistor M9 are all PMOS tubes, and the third transistor M3, the fourth transistor M4, the sixth transistor M6, the seventh transistor M7, the tenth transistor M10, and the eleventh transistor M11 are all NMOS tubes. In other embodiments, the output tube K1, the first transistor M1, the second transistor M2, the eighth transistor M8, and the ninth transistor M9 may also be NMOS tubes or other devices, and the third transistor M3, the fourth transistor M4, the sixth transistor M6, the seventh transistor M7, the tenth transistor M10, and the eleventh transistor M11 may also be PMOS tubes or other devices, and their connection methods are adaptively adjusted.

[0057] The first end of each of the above-mentioned tubes refers to the source, the second end of each of the above-mentioned tubes refers to the drain, and the control end of each of the above-mentioned tubes refers to the gate.

[0058] In one embodiment, the above-mentioned tubes all operate in the saturation region.

[0059] In the actual working process, the output tube K1 can generate an output current Iout based on its own opening. The output current Iout is supplied to the external load in one way and to the sixth transistor M6 in another way. The magnitude of the output current Iout can be adjusted by adjusting the voltage of the control terminal of the output tube K1. In a balanced state, the current I0 required by the external load, the current on the sixth transistor M6, and the output current Iout of the output tube K1 remain stable. When the power supply demand of the external load suddenly increases, the current I0 required by the external load suddenly increases, and current is drawn from the sixth transistor M6, causing the reference current Ix to decrease following the current on the sixth transistor M6, and the second current I2 to decrease following the reference current Ix.

[0060] At this time, the current (the sum of the bias current and the second current I2) flowing into the tenth transistor M10 decreases, and through the current mirror formed by the tenth transistor M10 and the eleventh transistor M11, the current in the eleventh transistor M11 decreases, and the first voltage V1 on the second end of the eleventh transistor M11 is pulled down.

[0061] As the first voltage V1 decreases, the VGS of the first transistor M1 increases, and the current on the first transistor M1 also increases. The second transistor M2 and the output tube K1 form a current mirror with the first transistor M1, and the output current Iout and the first current I1 increase along with the current on the first transistor M1. Among them, the increased output current Iout is directly supplied to the external load, so that the current I0 required by the external load, the current on the sixth transistor M6 and the output current Iout are restored to balance. As the first current I1 increases, the voltage at the second end of the third transistor M3 will also increase. Through the current mirror formed by the third transistor M3 and the fourth transistor M4, the voltage at the second end of the fourth transistor M4 increases synchronously, realizing feedback regulation to restore the first voltage V1 to a new stable potential.

[0062] When the power supply demand of the external load suddenly decreases, the above steps are repeated, and the output current Iout can also be autonomously regulated and stabilized.

[0063] In the above process, the power consumption control circuit provides current supply to the external load completely based on its demand, and does not limit the voltage value on the node where the external load is connected to the power consumption control circuit. Compared with the commonly used LDO circuit, the power supply principle is different and more flexible.

[0064] The power consumption control circuit of the present application can convert the change of the power supply demand of the external load into a voltage change in a negative feedback manner, identify the response through the mirror module 10, and adjust the output current Iout by adjusting the gate voltage of the output tube K1 to meet the new power supply demand. At the same time, through the internal loop of the mirror module 10, it is ensured that the first voltage V1 converges to a stable working state corresponding to the new demand until the next power supply demand changes. The power consumption control circuit of the present application provides the external load with the required current, and can achieve power consumption control without changing the load circuit. By actively responding to the load power supply changes, the power consumption waste caused by the uncontrolled through-current between the power supply and the ground in the traditional circuit is limited.

[0065] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A power consumption control circuit, characterized in that: The invention comprises an output tube, a mirror module and a regulating module, wherein the first end of the output tube is connected to a power supply voltage, the second end of the output tube is connected to an external load to provide an output current, the regulating module is connected to the second end of the output tube and the external load, the regulating module generates a first voltage based on a change in the current required by the external load, the mirror module is connected to the regulating module and a control end of the output tube to regulate the magnitude of the output current based on the first voltage, and feedback regulates the magnitude of the first voltage.

2. The power consumption control circuit according to claim 1, characterized in that: The mirror module includes a first mirror unit and a second mirror unit, the first mirror unit is connected to the regulating module and the control end of the output tube to generate a first current based on a first voltage and adjust the magnitude of the output current, and the second mirror unit is connected to the first mirror unit and the regulating module to adjust the magnitude of the first voltage based on the first current.

3. The power consumption control circuit according to claim 2, characterized in that: The first mirror unit includes a first transistor and a second transistor, the first end of the first transistor and the first end of the second transistor are connected to the power supply voltage, the control end of the first transistor, the second end of the first transistor, and the control end of the second transistor are connected to the control end of the regulation module and the output tube to receive the first voltage and adjust the output current based on the first voltage, and the second end of the second transistor is connected to the second mirror unit to generate the first current.

4. The power consumption control circuit according to claim 2, characterized in that: The second mirror unit includes a third transistor and a fourth transistor, the first end of the third transistor and the first end of the fourth transistor are connected to the ground voltage, the control end of the third transistor, the second end of the third transistor, and the control end of the fourth transistor are connected to the first mirror unit to receive the first current, and the second end of the fourth transistor is connected to the adjustment module to adjust the magnitude of the first voltage.

5. The power consumption control circuit according to claim 1, characterized in that: The regulating module includes a fifth transistor and a first current source, the second end of the fifth transistor is connected to the power supply voltage, the control end of the fifth transistor is connected to the second end of the output tube and the external load, the first end of the fifth transistor is connected to the first end of the first current source and the mirror module to generate a first voltage, and the second end of the first current source is connected to the ground voltage.

6. The power consumption control circuit according to claim 1, characterized in that: The regulating module includes a current unit, a second current source and a third mirror unit. The current unit is connected to the second end of the output tube and the external load to generate a second current based on the output current and the current required by the external load. The first end of the second current source is connected to the power supply voltage. The second current source is used to generate a bias current. The third mirror unit is connected to the second end of the second current source and the current unit to receive the bias current and the second current. The third mirror unit is connected to the mirror module to generate a first voltage based on the bias current and the second current.

7. The power consumption control circuit according to claim 6, characterized in that: The current unit includes a first current mirror and a second current mirror, wherein the first current mirror is connected to the second end of the output tube and the external load to generate a reference current based on the output current and the current required by the external load, and the second current mirror is connected to the first current mirror to replicate the reference current to generate a second current.

8. The power consumption control circuit according to claim 7, characterized in that: The first current mirror includes a sixth transistor and a seventh transistor, the first end of the sixth transistor and the first end of the seventh transistor are connected to the ground voltage, the control end of the sixth transistor, the second end of the sixth transistor, and the control end of the seventh transistor are connected to the second end of the output tube and the external load, and the second end of the seventh transistor is connected to the second current mirror to generate a reference current.

9. The power consumption control circuit according to claim 7, characterized in that: The second current mirror includes an eighth transistor and a ninth transistor, the first end of the eighth transistor and the first end of the ninth transistor are connected to the power supply voltage, the second end of the eighth transistor, the control end of the eighth transistor, and the control end of the ninth transistor are connected to the first current mirror to receive a reference current, and the second end of the ninth transistor is connected to the third mirror unit to generate a second current.

10. The power consumption control circuit according to claim 6, characterized in that: The third mirror unit includes a tenth transistor and an eleventh transistor, a first end of the tenth transistor and a first end of the eleventh transistor are connected to a ground voltage, a second end of the tenth transistor, a control end of the tenth transistor, and a control end of the eleventh transistor are connected to a second end of a current unit and a second current source to receive a bias current and a second current, and a second end of the eleventh transistor is connected to a mirror module to generate a first voltage.

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