Power supply control circuit and electronic atomizer

Abstract

The utility model provides a power supply control circuit and an electronic atomizer, and belongs to the technical field of electronics. The power supply control circuit comprises a micro-control unit, a switch unit, a boost module and a battery, wherein the micro-control unit, the switch unit, the boost module and the battery are arranged in a first device; the first end of the micro-control unit is used for being connected with a second device, and the second end of the micro-control unit is connected with the first end of the switch unit; the second end of the switch unit is connected with the first end of the boost module, and the third end of the switch unit is connected with the battery; and the second end of the boosting module is used for connecting the second device. According to the invention, the safety, reliability and practicability of power supply can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronics, in particular to a power supply control circuit and an electronic atomizer. BACKGROUND

[0002] With the rapid development of electronic technology, various electronic products have entered people's work and life, such as electronic atomizers. These electronic atomizers generally have a storage atomization liquid, an atomization cartridge for atomizing the atomization liquid, and a host for supplying power to the atomization cartridge and storing atomization data. Moreover, generally, the atomization cartridge and the host can be separated.

[0003] In the related art, generally, the atomization cartridge and the host can be combined together through magnetic attraction contacts, at which time the host can supply power to the atomization cartridge. Specifically, a corresponding boost circuit can be provided at the host circuit end to boost the voltage output by the battery in the host to the voltage level required by the atomization cartridge. Moreover, a charging management circuit can also be designed at the atomization cartridge circuit end, so that the purpose of automatically charging the atomization cartridge when the host and the atomization cartridge are combined can be achieved.

[0004] However, the scheme in the related art can output power when the host and the atomization cartridge are not correctly connected, which can cause the problems of electric shock or circuit damage. UTILITY MODEL CONTENT

[0005] The purpose of the present application is to provide a power supply control circuit and an electronic atomizer, which can improve the safety, reliability and practicability of power supply.

[0006] Embodiments of the present application are implemented as follows:

[0007] In a first aspect, the present application provides a power supply control circuit, which comprises a microcontroller unit (MCU), a switching unit, a boost module and a battery, wherein the MCU, the switching unit, the boost module and the battery are arranged in a first device.

[0008] A first end of the MCU is used to connect a second device, and a second end of the MCU is connected with a first end of the switching unit. The MCU is used to collect a target signal of a connection point between the MCU and the second device, and output a control signal to the switching unit under the action of the target signal. The target signal is used to indicate whether the first device and the second device are connected.

[0009] The second end of the switch unit is connected with the first end of the voltage boosting module, and the third end of the switch unit is connected with the battery; the switch unit is used for being turned on under the control of the MCU, so as to transmit the initial electric energy output by the battery to the voltage boosting module;

[0010] The second end of the voltage boosting module is used for connecting the second device; the voltage boosting module is used for adjusting the voltage of the initial electric energy and outputting the adjusted electric energy to the second device.

[0011] In the present application, the switch unit at least comprises a first switch tube, a second switch tube and a first resistor;

[0012] The first pole of the first switch tube is connected with the second end of the MCU, the second pole of the first switch tube is connected with the first pole of the second switch tube and the first end of the first resistor respectively, and the third pole of the first switch tube is grounded;

[0013] The second end of the first resistor is connected with the second pole of the second switch tube and the battery respectively;

[0014] The third pole of the second switch tube is connected with the first end of the voltage boosting module;

[0015] The first switch tube is used for being turned on under the control of the MCU, so as to make the second switch tube turned on.

[0016] In the present application, the voltage boosting module at least comprises an inductor, a first diode and a voltage boosting unit;

[0017] The first end of the inductor is connected with the second end of the switch unit and at least one input end of the voltage boosting unit respectively, and the second end of the inductor is connected with the anode of the first diode and the output end of the voltage boosting unit respectively;

[0018] The cathode of the first diode is used for connecting the second device;

[0019] The voltage boosting unit and the inductor are used for adjusting the voltage of the initial electric energy, and outputting the adjusted electric energy to the second device through the first diode.

[0020] In the present application, the voltage boosting module further comprises a second resistor and a third resistor;

[0021] The first end of the second resistor is connected with the cathode of the first diode, and the second end of the second resistor is connected with the control end of the voltage boosting unit and the first end of the third resistor respectively;

[0022] The second end of the third resistor is grounded.

[0023] In the application, the power supply control circuit further comprises a detection unit, which is arranged in the first device.

[0024] The first end of the detection unit is connected with the first end of the MCU, and the second end of the detection unit is used for connecting the second device.

[0025] The detection unit is used for detecting the target signal and outputting the target signal to the MCU.

[0026] When the target signal indicates that the first device and the second device are connected, the MCU is further used for outputting the control signal for controlling the switch unit to be turned on in the case that the duration of the target signal is greater than a preset time length.

[0027] In the application, the detection unit comprises a fourth resistor and a fifth resistor.

[0028] The first end of the fourth resistor is used for inputting a working voltage, and the second end of the fourth resistor is connected with the first end of the MCU and the first end of the fifth resistor respectively.

[0029] The second end of the fifth resistor is used for connecting the second device.

[0030] In the application, the power supply control circuit further comprises a second diode, which is arranged in the first device.

[0031] The first end of the second diode is connected with the second end of the fifth resistor, and the second end of the second diode is grounded.

[0032] In the application, the power supply control circuit further comprises a first capacitor.

[0033] The first plate of the first capacitor is connected with the second end of the switch unit, and the second plate of the first capacitor is grounded.

[0034] The power supply control circuit further comprises a second capacitor.

[0035] The first plate of the second capacitor is connected with the second end of the boost module, and the second plate of the second capacitor is grounded.

[0036] In the application, the power supply control circuit further comprises a sixth resistor, which is arranged in the second device.

[0037] The first end of the sixth resistor is used for being connected with the first end of the MCU, and the second end of the sixth resistor is grounded.

[0038] The sixth resistor is used to pull down the level of the connection point between the MCU and the second device when the first device and the second device are connected.

[0039] In a second aspect, the application provides an electronic atomizer, which comprises the power supply control circuit according to any one of the first aspect.

[0040] The application has the following beneficial effects.

[0041] The power supply control circuit provided by the application comprises an MCU, a switching unit, a voltage boosting module and a battery, and the MCU, the switching unit, the voltage boosting module and the battery are arranged in the first device. The first end of the MCU is used to connect the second device, the second end of the MCU is connected with the first end of the switching unit, the second end of the switching unit is connected with the first end of the voltage boosting module, and the third end of the switching unit is connected with the battery. The second end of the voltage boosting module is used to connect the second device.

[0042] The MCU can collect the target signal of the connection point between the MCU and the second device, and determine whether the first device and the second device are connected according to the target signal.

[0043] Further, the MCU can control the switching unit to be off when the first device and the second device are not connected, so that the battery cannot supply power to the second device through the switching unit and the voltage boosting module. In addition, the MCU can control the switching unit to be on when the first device and the second device are connected, so that the battery supplies power to the second device through the switching unit and the voltage boosting module.

[0044] In this way, it can be ensured that the first device outputs power to the second device only when it is confirmed that the first device and the second device are connected.

[0045] In this way, the safety, reliability and practicability of power supply can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0047] Figure 1 The structure diagram of the first power supply control circuit provided by the application;

[0048] Figure 2 A structure schematic diagram of a second power supply control circuit provided by an embodiment of the present application is shown in FIG. 2.

[0049] Figure 3 A structure schematic diagram of a third power supply control circuit provided by an embodiment of the present application is shown in FIG. 3.

[0050] Figure 4 A structure schematic diagram of a fourth power supply control circuit provided by an embodiment of the present application is shown in FIG. 4.

[0051] Figure 5 A structure schematic diagram of a fifth power supply control circuit provided by an embodiment of the present application is shown in FIG. 5.

[0052] Figure 6 A structure schematic diagram of a sixth power supply control circuit provided by an embodiment of the present application is shown in FIG. 6. DETAILED DESCRIPTION

[0053] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0054] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts are within the scope of protection of the present application.

[0055] It should be noted that similar reference numerals and letters in the following drawings represent similar items, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0056] In the description of the present application, it should be noted that the terms "first", "second", "third", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "setting", "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integrally connected; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0058] In the related art, generally, the atomizing cartridge and the main machine can be combined together through magnetic attraction contact points, at which time the main machine can supply power to the atomizing cartridge. Specifically, a corresponding boost circuit can be arranged at the circuit end of the main machine to boost the voltage output by the battery in the main machine to the voltage level required by the atomizing cartridge. Moreover, a charging management circuit can also be designed at the circuit end of the atomizing cartridge, so that the purpose of automatically charging the atomizing cartridge by the main machine when the main machine and the atomizing cartridge are combined can be achieved.

[0059] However, the scheme in the related art can output power when the main machine and the atomizing cartridge are not correctly connected, which can cause the problems of electric shock or circuit damage.

[0060] Therefore, the embodiment of the present application provides a power supply control circuit, which is configured by arranging an MCU, a switching unit, a boost module and a battery in the power supply control circuit, specifically, the MCU, the switching unit, the boost module and the battery are arranged in a first device. Moreover, a first end of the MCU is configured to be connected to a second device, a second end of the MCU is connected to a first end of the switching unit; a second end of the switching unit is connected to a first end of the boost module, a third end of the switching unit is connected to the battery; and a second end of the boost module is configured to be connected to the second device. In this way, the safety, reliability and practicability of power supply can be improved.

[0061] The embodiment of the present application takes the power supply control circuit applied in the electronic atomizer as an example for illustration. However, it does not mean that the embodiment of the present application can only be applied to the power supply control of the electronic atomizer.

[0062] The power supply control circuit provided by the embodiment of the present application will be explained and described in detail as follows.

[0063] Figure 1 The structure diagram of the power supply control circuit provided by the present application is shown in FIG. 1. As shown in FIG. 1, the power supply control circuit provided by the present application includes an MCU 101, a switching unit 102, a boost module 103 and a battery 104, which are arranged in a first device 100. Figure 1 The embodiment of the present application provides a power supply control circuit, which includes an MCU 101, a switching unit 102, a boost module 103 and a battery 104, which are arranged in a first device 100.

[0064] A first end of the MCU 101 is configured to be connected to a second device 200, and a second end of the MCU 101 is connected to a first end of the switching unit 102.

[0065] A second end of the switching unit 102 is connected to a first end of the boost module 103, and a third end of the switching unit 102 is connected to the battery 104.

[0066] A second end of the boost module 103 is configured to be connected to the second device 200.

[0067] The MCU 101 is configured to collect a target signal of a connection point between the MCU 101 and the second device 200, and output a control signal to the switch unit 102 under the action of the target signal.

[0068] In this embodiment, if the power supply control circuit is applied to an electronic atomizer, the first device 100 can be a host in the electronic atomizer for storing atomization data and supplying power, and the second device 200 can be an atomizer cartridge in the electronic atomizer for storing and atomizing an atomization liquid.

[0069] In this embodiment, the connection point between the MCU 101 and the second device 200 can refer to a first end of the MCU 101, or can refer to any contact point between the first device 100 and the second device 200 that can be detected by the MCU 101. The present embodiment does not limit this.

[0070] In this embodiment, the target signal is used to indicate whether the first device 100 and the second device 200 are connected. For example, if the first device 100 and the second device 200 are connected, the target signal can be a low-level signal; if the first device 100 and the second device 200 are not connected, the target signal can be a high-level signal. The present embodiment does not limit this.

[0071] Specifically, the MCU 101 can be configured to output the control signal to the switch unit 102 when detecting that the target signal is a low-level signal, and stop outputting the control signal to the switch unit 102 when detecting that the target signal is a high-level signal. In this case, the control signal can be a signal for turning on the switch unit 102.

[0072] The switch unit 102 is configured to be turned on under the control of the MCU 101 to transmit initial electrical energy output by the battery 104 to the boost module 103.

[0073] In this embodiment, the switch unit 102 can include any controllable switch that can disconnect the electrical energy transmission path between the battery 104 and the boost module 103, such as a triode, MOS tube, etc. The present embodiment does not limit this.

[0074] In this embodiment, the battery 104 can be any type of battery, such as a lithium battery, a silver-zinc battery, etc.

[0075] In this embodiment, the initial electrical energy can refer to the electrical energy output by the battery 104 to the outside, and the voltage level of the initial electrical energy can be 3.3V or any other possible voltage level.

[0076] The voltage of the initial electric energy is adjusted by the voltage boosting module 103, and the adjusted electric energy is output to the second device 200.

[0077] In this embodiment, the voltage boosting module 103 can be used to boost the initial electric energy. For example, the initial electric energy can be boosted from 3.3V to 5V, or any other possible voltage level, which is not limited in the embodiment of the present application.

[0078] In this embodiment, the second device 200 can realize the atomization function in any possible way. For example, the atomization function can be realized by heating or pressurizing the atomized liquid, or by generating ultrasonic waves, which is not limited in the embodiment of the present application.

[0079] Specifically, when the first device 100 is connected to the second device 200, the second end of the voltage boosting module 103 can be connected to the second device 200. At this time, the voltage boosting module 103 is used to output the adjusted electric energy to the power-consuming elements in the second device 200, such as heating wires or pressurizing devices used to realize the atomization function.

[0080] It is worth noting that in order to better explain the power supply control circuit provided in the embodiment, the working principle of the power supply control circuit is introduced as follows:

[0081] When the first device 100 is not connected to the second device 200 (i.e., the atomization cartridge and the main machine in the electronic atomizer are separated), the target signal detected by the MCU 101 is a high-level signal. At this time, the MCU 101 does not output the control signal to the switching unit 102, and the switching unit 102 remains off. The battery 104 cannot output the initial electric energy to the voltage boosting module 103, so the voltage boosting module 103 does not work and does not output the adjusted electric energy. It can be seen that in this case, the first device 100 does not supply power to the second device 200.

[0082] When the first device 100 is connected to the second device 200 (i.e., the atomization cartridge and the main machine in the electronic atomizer are combined), the target signal detected by the MCU 101 is a low-level signal. At this time, the MCU 101 outputs the control signal to the switching unit 102, and the switching unit 102 is turned on. The battery 104 can output the initial electric energy to the voltage boosting module 103 through the switching unit 102, so the voltage boosting module 103 starts to boost the initial electric energy and outputs the adjusted electric energy to the second device 200. It can be seen that in this case, the first device 100 can supply power to the second device 200.

[0083] For example, if the target signal detected by the MCU 101 is a low-level signal, the MCU 101 can determine that the first device 100 and the second device 200 are connected (i.e., the atomizer cartridge in the electronic atomizer is combined with the main machine), and in this case, the MCU 101 can directly output the control signal to the switch unit 102 while detecting the low-level signal.

[0084] For another example, the MCU 101 can also continuously detect the low-level signal after detecting the low-level signal, and output the control signal to the switch unit 102 until the duration of the low-level signal is greater than or equal to a preset time length.

[0085] The preset time length can be set by a person skilled in the art, and can be 2 seconds, 3 seconds, or any other time length. Generally, if the duration of the low-level signal is greater than or equal to the preset time length, it can be indicated that the first device 100 and the second device 200 are in a stable connection state, rather than a false judgment caused by accidental touch or other interference factors.

[0086] That is, when the target signal indicates that the first device 100 and the second device 200 are connected, the MCU 101 is further configured to output the control signal for controlling the switch unit 102 to be turned on when the duration of the target signal is greater than the preset time length.

[0087] In this way, the problem of false action of the MCU 101 caused by signal interference or other factors can be avoided as much as possible, that is, the reliability and safety of the power supply control circuit can be improved.

[0088] It is worth noting that in the present embodiment, since the MCU 101 can collect the target signal of the connection point between the MCU 101 and the second device 200, the MCU 101 can determine whether the first device 100 and the second device 200 are connected according to the target signal. Moreover, the MCU 101 can specifically control the switch unit 102 to be turned off when the first device 100 and the second device 200 are not connected, so that the battery 104 cannot supply power to the second device 200 through the switch unit 102 and the boost module 103. In addition, the MCU 101 can specifically control the switch unit 102 to be turned on when the first device 100 and the second device 200 are connected, so that the battery 104 supplies power to the second device 200 through the switch unit 102 and the boost module 103.

[0089] In this way, it can be ensured that the first device 100 outputs power to the second device 200 only when it is confirmed that the first device 100 and the second device 200 are connected, and thus the safety, reliability and practicability of the power supply control circuit can be improved.

[0090] In the embodiment of the present application, the MCU 101, the switching unit 102, the voltage boosting module 103 and the battery 104 are arranged in the power supply control circuit, and are arranged in the first device 100. Specifically, the first end of the MCU 101 is configured to be connected to the second device 200, and the second end of the MCU 101 is connected to the first end of the switching unit 102. The second end of the switching unit 102 is connected to the first end of the voltage boosting module 103, and the third end of the switching unit 102 is connected to the battery 104. The second end of the voltage boosting module 103 is configured to be connected to the second device 200.

[0091] In this way, the MCU 101 can determine whether the first device 100 and the second device 200 are connected according to the target signal.

[0092] In addition, the MCU 101 can specifically control the switching unit 102 to be turned off when the first device 100 and the second device 200 are not connected, so that the battery 104 cannot supply power to the second device 200 through the switching unit 102 and the voltage boosting module 103. In addition, the MCU 101 can specifically control the switching unit 102 to be turned on when the first device 100 and the second device 200 are connected, so that the battery 104 supplies power to the second device 200 through the switching unit 102 and the voltage boosting module 103.

[0093] In this way, it can be ensured that the first device 100 will output power to the second device 200 only when it is confirmed that the first device 100 and the second device 200 are connected.

[0094] In this way, the safety, reliability and practicability of power supply can be improved.

[0095] In one possible implementation manner, referring to Figure 2 The switching unit 102 at least includes a first switch tube Q1, a second switch tube Q2 and a first resistor R1.

[0096] The first pole of the first switch tube Q1 is connected to the second end of the MCU 101, the second pole of the first switch tube Q1 is respectively connected to the first pole of the second switch tube Q2 and the first end of the first resistor R1, and the third pole of the first switch tube Q1 is grounded.

[0097] The second end of the first resistor R1 is respectively connected to the second pole of the second switch tube Q2 and the battery 104.

[0098] The third pole of the second switch tube Q2 is connected to the first end of the voltage boosting module 103.

[0099] The first switch tube Q1 is used for being turned on under the control of the MCU 101, so as to make the second switch tube Q2 be turned on.

[0100] In the embodiment, the first switch tube Q1 can be an NPN triode, or can be any other possible switch tube. If the first switch tube Q1 is an NPN triode, the first pole, the second pole and the third pole of the first switch tube Q1 can be the base, the collector and the emitter of the NPN triode respectively, which is not limited in the embodiment.

[0101] In the embodiment, the second switch tube Q2 can be a PMOS tube, or can be any other P-channel switch tube. If the second switch tube Q2 is a PMOS tube, the first pole, the second pole and the third pole of the second switch tube Q2 can be the gate, the source and the drain of the PMOS tube respectively, which is not limited in the embodiment.

[0102] In the embodiment, the first resistor R1 can be a current-limiting and voltage-dividing resistor, or can be regarded as a pull-up resistor of the switch tube.

[0103] It can be understood that, when the MCU 101 determines that the first device 100 and the second device 200 are not connected, the MCU 101 does not output the control signal, the first switch tube Q1 and the second switch tube Q2 are both turned off, and the switch unit 102 is turned off at this time.

[0104] In addition, when the MCU 101 determines that the first device 100 and the second device 200 are connected, the MCU 101 outputs the control signal to the first pole of the first switch tube Q1, so that the first switch tube Q1 is turned on. At this time, the gate of the second switch tube Q2 is grounded through the first switch tube Q1, the voltage on the gate of the second switch tube Q2 is pulled down, the second switch tube Q2 is turned on, and in this case, the switch unit 102 is turned on.

[0105] In this way, the purpose of controlling the switch unit 102 to be turned on or turned off by the MCU 101 can be achieved.

[0106] In a possible implementation manner, referring to Figure 3 The boost module 103 at least includes an inductor L, a first diode D1 and a boost unit 1031.

[0107] The first end of the inductor L is connected with the second end of the switch unit 102 and at least one input end of the boost unit 1031 respectively, and the second end of the inductor L is connected with the anode of the first diode D1 and the output end of the boost unit 1031 respectively.

[0108] The cathode of the first diode D1 is used for connecting the second device 200.

[0109] The inductor L and the boost unit 1031 are used to adjust the voltage of the initial power, and the adjusted power is output to the second device 200 through the first diode D1.

[0110] In this embodiment, the inductor L can be used as an energy storage device to stabilize the voltage output by the boost module 103.

[0111] In this embodiment, the boost unit 1031 can be any possible boost IC.

[0112] For example, the inputs of the boost unit 1031 can be a power supply end and an enable end. After the switch unit 102 is turned on, the initial power flows into the power supply end and the enable end of the boost unit 1031. The output of the boost unit 1031 can output a voltage (e.g., 5V) higher than the voltage level of the initial power to the anode of the first diode D1.

[0113] Moreover, when the switch unit 102 is turned on, the initial power output by the battery 104 can flow through the inductor L, and the inductor L starts to store energy. When the inductor L starts to discharge, the current flowing through the inductor L cannot change abruptly, i.e., the discharging process of the inductor L is slow. In this way, the inductor L can stabilize the voltage of the adjusted power output by the boost module 103.

[0114] In a possible manner, a diode and an output capacitor for cooperating with the inductor L to store and discharge energy can also be arranged in the boost module 103 or the second device 200. The embodiments of the present application do not limit this.

[0115] In this way, the inductor L and the boost unit 1031 can achieve the purpose of boosting the initial power. Moreover, due to the unidirectional conduction characteristic of the first diode D1, the power of the second device 200 can be prevented from flowing back to the first device 100, and the safety of the circuit can be improved.

[0116] In a possible implementation manner, referring to Figure 4 and Figure 5 The boost module 103 further includes a second resistor R2 and a third resistor R3.

[0117] The first end of the second resistor R2 is connected with the cathode of the first diode D1, and the second end of the second resistor R2 is connected with the control end of the boost unit 1031 and the first end of the third resistor R3 respectively.

[0118] The second end of the third resistor R3 is grounded.

[0119] In this embodiment, the second resistor R2 and the third resistor R3 can be resistors for voltage division, and the specific resistance values can be selected according to actual needs.

[0120] Specifically, the second resistor R2 and the third resistor R3 can sample the adjusted electric energy output by the boosting unit 1031 to the second device 200 through the first diode D1, so that the boosting unit 1031 can determine the voltage of the adjusted electric energy based on the voltage after the voltage division of the second resistor R2 and the third resistor R3, and then the boosting unit 1031 can adjust the voltage level of the output voltage itself, so as to keep the adjusted electric energy at the voltage level required by the second device 200 or the preset voltage level as much as possible. In this way, the feedback adjustment of the boosting module 103 can be realized.

[0121] For example, continuing to refer to Figure 5 , the boosting unit 1031 can be a boosting chip U, wherein the input end of the boosting chip U includes an enable end EN and a power supply end VIN, and the boosting chip U further includes an output end SW, a ground end GND and a control end FB. The specific connection relationship is shown in Figure 5 , and details are not described herein.

[0122] In a possible implementation, referring to Figure 6 , the power supply control circuit further includes a detection unit 105, which is arranged in the first device 100.

[0123] The first end of the detection unit 105 is connected to the first end of the MCU 101, and the second end of the detection unit 105 is used to connect the second device 200.

[0124] The detection unit 105 is configured to detect the target signal and output the target signal to the MCU 101.

[0125] For example, continuing to refer to Figure 6 , the detection unit 105 can include a fourth resistor R4 and a fifth resistor R5.

[0126] The first end of the fourth resistor R4 is used to input a working voltage, and the second end of the fourth resistor R4 is connected to the first end of the MCU 101 and the first end of the fifth resistor R5.

[0127] The second end of the fifth resistor R5 is used to connect the second device 200.

[0128] In this embodiment, the fourth resistor R4 and the fifth resistor R5 can be resistors for voltage division and current limiting, and the specific resistance value can be set according to actual needs. The working voltage can be provided by any possible power supply, and generally the working voltage can be 3.3V.

[0129] In the embodiment, when the first device 100 and the second device 200 are connected, the second end of the fifth resistor R5 can be grounded through the second device 200 or the voltage of the second end of the fifth resistor R5 can be pulled down by any other possible way.

[0130] It can be understood that when the first device 100 and the second device 200 are not connected, the working voltage is applied to the first end of the MCU 101 through the fourth resistor R4, and the target signal detected by the MCU 101 is high level. When the first device 100 and the second device 200 are connected, the voltage of the second end of the fifth resistor R5 is pulled down, resulting in that the voltage of the first end of the MCU 101 is pulled down, and the target signal detected by the MCU 101 is low level.

[0131] In this way, the MCU 101 can accurately determine whether the first device 100 and the second device 200 are connected.

[0132] In a possible implementation, continuing to refer to Figure 6 The power supply control circuit further includes a second diode D2, which is arranged in the first device 100.

[0133] The first end of the second diode D2 is connected with the second end of the fifth resistor R5, and the second end of the second diode D2 is grounded.

[0134] In the embodiment, the second diode D2 can be used as an Electro-Static discharge (ESD) diode.

[0135] In this way, the elements in the first device 100 can be prevented from being damaged by static electricity, and the safety of the circuit can be improved.

[0136] In a possible implementation, continuing to refer to Figure 6 The power supply control circuit further includes a first capacitor C1.

[0137] The first plate of the first capacitor C1 is connected with the second end of the switch unit 102, and the second plate of the first capacitor C1 is grounded.

[0138] In addition, continuing to refer to Figure 6 The power supply control circuit further includes a second capacitor C2.

[0139] The first plate of the second capacitor C2 is connected with the second end of the boost module 103, and the second plate of the second capacitor C2 is grounded.

[0140] It can be understood that the first capacitor C1 and the second capacitor C2 can be used as filter capacitors to stabilize the electric energy in the circuit, thereby improving the power supply stability of the circuit.

[0141] In a possible implementation, referring to Figure 6 The power supply control circuit further includes a sixth resistor R6, which is arranged in the second device 200.

[0142] The first end of the sixth resistor R6 is configured to be connected to the first end of the MCU 101, and the second end of the sixth resistor R6 is grounded.

[0143] The sixth resistor R6 is configured to pull down the voltage level of a connection point between the MCU 101 and the second device 200 when the first device 100 and the second device 200 are connected.

[0144] Specifically, when the first device 100 and the second device 200 are connected, the first end of the sixth resistor R6 can be directly connected to the first end of the MCU 101 (or connected to the first end of the MCU 101 through the detection unit 105 described above). Because the second end of the sixth resistor R6 is grounded, the voltage of the first end of the MCU 101 is pulled down (or the voltage of the fifth resistor R5 described above is pulled down, and then the voltage of the first end of the MCU 101 is pulled down). At this time, the target signal detected by the MCU 101 becomes a low level.

[0145] In a possible implementation, continuing to refer to Figure 6 The second device 200 can further include an atomization element configured to be connected to the second end of the boost module 103 to receive the adjusted electric energy. The atomization element can be configured to realize an atomization function through heating, pressurization, ultrasonic waves, or the like.

[0146] The second device 200 can further include a third diode D3 connected in parallel with the sixth resistor R6. The third diode D3 can realize an ESD function.

[0147] The second device 200 can further include a third switch tube Q3 and a seventh resistor R7. The third switch tube Q3 and the seventh resistor R7 can be configured to switch the signal output by the second device 200 to the outside or the signal input by the MCU 101 to the second device 200. For example, when the second device 200 needs to receive the signal sent by the MCU 101, the second device 200 can directly receive the signal through MCU_RX. At this time, the third switch Q3 can be kept off. When the second device 200 needs to send a signal to the MCU 101, the second device 200 can send the signal through MCU_TX. At this time, the third switch Q3 can be turned on. In this way, bidirectional communication between the second device 200 and the first device 100 can be realized, which will not be described in detail in the embodiments of the present application.

[0148] In a possible implementation, the second device 200 can further include a processing unit having the functions of identification, receiving, sending, operation, analysis, control, etc., and the embodiments of the present application do not limit this.

[0149] The electronic atomizer provided by the present application is described below, and the specific implementation process and technical effects are described above, and will not be described again below.

[0150] The electronic atomizer provided by the present application is described below, and the specific implementation process and technical effects are described above, and will not be described again below.

[0151] In the present embodiment, the electronic atomizer can further include a storage bin for storing atomized liquid, a display device for displaying corresponding atomization data and power information, an input device for triggering a user to input instructions, and other any possible elements or units. The embodiments of the present application do not limit this.

[0152] The electronic atomizer provided by the present application is described below, and the specific implementation process and technical effects are described above, and will not be described again below.

[0153] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0154] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims. The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A power supply control circuit, characterized in that, The power supply control circuit includes a microcontroller unit, a switching unit, a boost module, and a battery, wherein the microcontroller unit, the switching unit, the boost module, and the battery are disposed in the first device; The first terminal of the microcontroller unit is used to connect to the second device, and the second terminal of the microcontroller unit is connected to the first terminal of the switching unit; the microcontroller unit is used to acquire the target signal of the connection point between the microcontroller unit and the second device, and to output a control signal to the switching unit under the action of the target signal; the target signal is used to indicate whether the first device and the second device are connected. The second terminal of the switching unit is connected to the first terminal of the boost module, and the third terminal of the switching unit is connected to the battery; the switching unit is used to turn on under the control of the microcontroller unit to transmit the initial electrical energy output by the battery to the boost module; The second end of the boost module is used to connect to the second device; the boost module is used to adjust the voltage of the initial electrical energy and output the adjusted electrical energy to the second device.

2. The power supply control circuit as described in claim 1, characterized in that, The switching unit includes at least: a first switching transistor, a second switching transistor, and a first resistor; The first terminal of the first switching transistor is connected to the second terminal of the microcontroller unit, the second terminal of the first switching transistor is connected to the first terminal of the second switching transistor and the first terminal of the first resistor, and the third terminal of the first switching transistor is grounded. The second end of the first resistor is connected to the second terminal of the second switch and the battery, respectively. The third terminal of the second switching transistor is connected to the first terminal of the boost module; The first switch is turned on under the control of the microcontroller unit, so that the second switch is turned on.

3. The power supply control circuit as described in claim 1, characterized in that, The boost module includes at least: an inductor, a first diode, and a boost unit; The first end of the inductor is connected to the second end of the switching unit and at least one input end of the boost unit, respectively; the second end of the inductor is connected to the positive terminal of the first diode and the output end of the boost unit, respectively. The cathode of the first diode is used to connect to the second device; The boost unit and the inductor are used to adjust the voltage of the initial electrical energy and output the adjusted electrical energy to the second device through the first diode.

4. The power supply control circuit as described in claim 3, characterized in that, The boost module further includes: a second resistor and a third resistor; The first end of the second resistor is connected to the negative terminal of the first diode, and the second end of the second resistor is connected to the control terminal of the boost unit and the first end of the third resistor, respectively. The second terminal of the third resistor is grounded.

5. The power supply control circuit as described in claim 1, characterized in that, The power supply control circuit further includes a detection unit, which is disposed in the first device; The first end of the detection unit is connected to the first end of the microcontroller unit, and the second end of the detection unit is used to connect to the second device; The detection unit is used to detect the target signal and output the target signal to the microcontroller unit. When the target signal indicates that the first device and the second device are connected, the microcontroller unit is also configured to output the control signal for controlling the switching unit to turn on if the duration of the target signal is greater than a preset duration.

6. The power supply control circuit as described in claim 5, characterized in that, The detection unit includes: a fourth resistor and a fifth resistor; The first end of the fourth resistor is used to input the working voltage, and the second end of the fourth resistor is connected to the first end of the microcontroller and the first end of the fifth resistor, respectively. The second end of the fifth resistor is used to connect to the second device.

7. The power supply control circuit as described in claim 6, characterized in that, The power supply control circuit further includes a second diode, which is disposed in the first device; The first terminal of the second diode is connected to the second terminal of the fifth resistor, and the second terminal of the second diode is grounded.

8. The power supply control circuit as described in any one of claims 1-7, characterized in that, The power supply control circuit also includes: a first capacitor; The first plate of the first capacitor is connected to the second terminal of the switching unit, and the second plate of the first capacitor is grounded. The power supply control circuit also includes: a second capacitor; The first plate of the second capacitor is connected to the second terminal of the boost module, and the second plate of the second capacitor is grounded.

9. The power supply control circuit as described in any one of claims 1-7, characterized in that, The power supply control circuit further includes a sixth resistor, which is disposed in the second device; The first end of the sixth resistor is used to connect to the first end of the microcontroller unit, and the second end of the sixth resistor is grounded; The sixth resistor is used to pull down the connection level between the microcontroller and the second device when the first device and the second device are connected.

10. An electronic atomizer, characterized in that, The electronic atomizer includes at least the power supply control circuit described in any one of claims 1 to 9.

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