CN218850430U - Power supply circuit of electronic equipment - Google Patents
Power supply circuit of electronic equipment Download PDFInfo
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- CN218850430U CN218850430U CN202222760356.8U CN202222760356U CN218850430U CN 218850430 U CN218850430 U CN 218850430U CN 202222760356 U CN202222760356 U CN 202222760356U CN 218850430 U CN218850430 U CN 218850430U
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- 238000010586 diagram Methods 0.000 description 11
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- 230000008859 change Effects 0.000 description 4
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- 239000006199 nebulizer Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000000222 aromatherapy Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002663 nebulization Methods 0.000 description 1
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Abstract
The embodiment of the application provides a power supply circuit of electronic equipment, which is applied to low-current equipment; the circuit at least comprises an equipment operation circuit, a power supply interface, an intelligent load circuit and a microcontroller circuit which are electrically connected in sequence; the equipment operation circuit is respectively connected with the power supply interface and the microcontroller circuit and is used for driving the low-current equipment to operate; the power supply interface is connected with power supply equipment, and the power supply equipment is used for supplying power to the low-current equipment; the microcontroller circuit is used for controlling the intelligent load circuit to be closed, so that the power supply interface continuously supplies power to the equipment operation circuit.
Description
Technical Field
The embodiment of the application relates to the technical field of intelligent equipment, and relates to but is not limited to a power supply circuit of electronic equipment.
Background
The utility model discloses a little current equipment of adapter or precious connection of charging, including adapter or precious the little current equipment of charging, adapter or precious a plurality of interfaces of charging, the output current of interface can be detected in order to guarantee that every interface can both realize filling the function soon in the correlation technique, when output current is less than the closing current of interface, interface output function can be closed to adapter or precious the closing current that charges, but can lead to the unable normal work of adapter or the precious little current equipment of connecting of charging like this.
SUMMERY OF THE UTILITY MODEL
Based on the problems in the related art, the embodiment of the application provides a power supply circuit for electronic equipment, which is applied to low-current equipment; the circuit at least comprises an equipment operation circuit, a power supply interface, an intelligent load circuit and a microcontroller circuit which are electrically connected in sequence;
the equipment operation circuit is respectively connected with the power supply interface and the microcontroller circuit and is used for driving the low-current equipment to operate;
the power supply interface is connected with power supply equipment, and the power supply equipment is used for supplying power to the low-current equipment;
the microcontroller circuit is used for controlling the intelligent load circuit to be closed, so that the power supply interface continuously supplies power for the equipment operation circuit.
In some embodiments, the device power supply circuit further comprises a microcontroller power supply circuit;
the microcontroller power supply circuit is respectively connected with the power supply interface and the microcontroller circuit and used for supplying power to the microcontroller circuit.
In some embodiments, the smart load circuit includes at least a load resistor;
the load resistor is connected with the equipment operation circuit in parallel, and the load resistor is used for enabling the power supply current at the power supply interface to be larger than the closing interface current of the power supply equipment.
In some embodiments, the smart load circuit further comprises a load switch electrically connected to the load resistor;
the microcontroller circuit is connected with the load switch, and is used for closing the load switch when a preset time period passes, so that the power supply current at the power supply interface is larger than the interface closing current of the power supply equipment.
In some embodiments, the supply current is greater than 100 milliamps.
In some embodiments, the power supply device stops supplying power when the supply current at the power supply interface is less than the duration of the power supply device closing the interface current and greater than a certain duration;
the duration of the preset time period is less than the specific duration.
In some embodiments, the device operational circuitry includes at least electrically connected device driver circuitry and device circuitry;
the equipment driving circuit is respectively connected with the microcontroller circuit and the power supply interface and used for supplying power to the equipment circuit.
In some embodiments, the device circuitry includes at least a charge management chip and a charge indicator;
the charging management chip is connected with the charging indication end and used for displaying the charging state of the low-current equipment.
In some embodiments, the device power supply circuit further comprises a key control circuit;
the key control circuit is connected with the microcontroller circuit and used for controlling the on-off of the equipment circuit.
In some embodiments, the device driving circuitry comprises at least a transformer;
the transformer is used for converting the voltage input by the power supply interface to form a voltage with a fixed value so as to supply power to the equipment circuit through the voltage with the fixed value.
The embodiment of the application provides a power supply circuit of electronic equipment, which controls an intelligent load circuit to be closed through a microcontroller circuit, so that the power supply equipment cannot close an interface output function due to the fact that the current of low-current equipment is too small, and the power supply equipment can continuously supply power to an operating circuit of the low-current equipment; and because the power supply circuit of this application embodiment sets up in undercurrent equipment side, need not to change current adapter and treasured that charges, just can supply power to the undercurrent equipment that this application provided, need not to dispose corresponding adapter for undercurrent equipment, the cost is reduced.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different examples of similar components. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed herein.
Fig. 1 is a schematic structural diagram of a power supply circuit of an electronic device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a power supply circuit of an electronic device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a power supply circuit of an electronic device according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a power supply circuit of an electronic device according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a power supply circuit of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the attached drawings, the described embodiments should not be considered as limiting the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
In the following description, suffixes such as "module" or "unit" used to denote elements are used only for facilitating the explanation of the present application, and have no specific meaning in themselves. Thus, "module" or "unit" may be used mixedly.
It should be noted that the reference numerals and/or letters may be repeated in different examples according to the embodiments of the present application. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily limit the invention.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of the present application belong. The terminology used in the embodiments of the present application is for the purpose of describing the embodiments of the present application only and is not intended to be limiting of the present application.
In the related art, the power supply interfaces of the adapter and the charger are generally Universal Serial Bus A (USBA) interfaces or Type-C interfaces. A plurality of interfaces in the correlation technique can adopt independent circuit to realize respectively, and arbitrary interface is during independent work and many interfaces simultaneous workings, and arbitrary interface all has the function of filling soon, and each other does not influence, can give the better customer experience of consumer. A plurality of interfaces can also adopt the same circuit control, arbitrary mouthful during operation alone can realize filling the function soon, and many mouthful during operation can only export ordinary 5 volts (V), can save the cost. In order to achieve that a single port can have a quick charging function at any time, the output current of the adapter interface is detected in the related art, if the current is within a certain range (such as 30 milliamperes (mA) to 100 mA), the device is considered to be fully charged or disconnected, and the output function of the interface is turned off at this moment. However, for the low-current device, when the current is less than 100mA, the power supply device closes the interface, and cannot continuously supply power to the low-current device.
Based on the problems in the related art, the embodiment of the application provides a power supply circuit for electronic equipment, which controls an intelligent load circuit to be closed through a microcontroller circuit, so that the power supply equipment cannot close an interface output function due to the fact that the current of low-current equipment is too small, and the power supply equipment can continuously supply power for an operating circuit of the low-current equipment; and because the power supply circuit of this application embodiment sets up in undercurrent equipment side, need not to change current adapter and treasured that charges, just can supply power to the undercurrent equipment that this application provided, need not to reduce the cost for the corresponding adapter of undercurrent equipment configuration.
Fig. 1 is a schematic structural diagram of a power supply circuit for an electronic device according to an embodiment of the present disclosure, and as shown in fig. 1, the power supply circuit for an electronic device according to an embodiment of the present disclosure is applied to a low-current device 10, and the power supply circuit at least includes a device operating circuit 101, a power supply interface 102, an intelligent load circuit 103, and a microcontroller circuit 104, which are electrically connected in sequence. The device operation circuit 101 is respectively connected to the power supply interface 102 and the microcontroller circuit 104, and is configured to drive the low-current device to operate; the power supply interface 102 is connected with a power supply device 105, and the power supply device 105 is used for supplying power to the low-current device 10; the microcontroller circuit 104 is configured to control the smart load circuit 103 to close, so that the power interface continuously supplies power to the device operating circuit 101.
In some embodiments, the power supply device 105 may be a power supply device such as a power bank, a vehicle charger, or an adapter for supplying power to the low current device 10. The low current device 10 may be a battery-powered device and powering the low current may be charging the device or powering the device to operate.
In some embodiments, the power supply interface 102 refers to an interface of a low current device, and may be a lightning interface, a Mirco-USB interface, a Type-C interface, or a Mini-USB interface.
Fig. 2 is a schematic structural diagram of a power supply circuit of an electronic device according to an embodiment of the present disclosure, and as shown in fig. 2, in some embodiments, the power supply circuit of the device further includes a microcontroller power supply circuit 106, and the microcontroller power supply circuit 106 is connected to the power supply interface 102 and the microcontroller circuit 104, respectively, and is configured to supply power to the microcontroller circuit 104.
In some embodiments, the microcontroller power supply circuit 106 may include a rectifying circuit and a voltage stabilizing circuit, and may change the current input by the power supply interface into a stable current with a fixed voltage to power the microcontroller circuit 104. The microcontroller power supply circuit 106 provides a stable power supply for the microcontroller circuit 104 during operation.
In some embodiments, the power supply device 105 has a shutdown interface current, which may be between 30 and 100mA, and when the current at the power supply interface of the low current device 10 is less than 100mA, i.e., less than the shutdown interface current, then it is assumed that the low current device 10 is fully charged or that the low current device 10 has been disconnected from the power supply device 105, and at this time the power supply device 105 shuts down the output function of the output interface, the power supply device 105 stops supplying power.
Fig. 3 is a schematic structural diagram of a power supply circuit of an electronic device according to an embodiment of the present disclosure, and as shown in fig. 3, the intelligent load circuit 103 at least includes a load resistor R, the load resistor R is connected in parallel with the device operating circuit 101, the load resistor R is electrically connected to the power supply interface 102, and a power supply current at the power supply interface 102 is greater than a shutdown interface current of the power supply device through the load resistor R, that is, the power supply current at the power supply interface 102 is greater than 100mA through the load resistor R.
Fig. 4 is a schematic structural diagram of a power supply circuit of an electronic device according to an embodiment of the present disclosure, where the intelligent load circuit 103 may further include a load switch Q electrically connected to the load resistor R, and the microcontroller circuit 104 may be a single chip microcomputer, and is configured to implement circuit control and corresponding current and voltage detection. The singlechip at least comprises an MCU _ PWM pin. The microcontroller circuit 104 is connected to the load switch Q via the MCU _ PWM pin.
In some embodiments, the MCU _ PWM pin of the microcontroller circuit 104 may periodically output a control waveform to control the on/off of the load switch Q, so as to ensure that the current flows through the load resistor R periodically.
In some embodiments, the power supply 105 stops supplying power when the power supply 105 detects that the current at the power interface 102 is less than the time that the power supply 105 turns off the interface current for more than a specified time period, e.g., the power supply 105 stops supplying power when the power supply 105 detects that the current at the power interface 102 is less than 100mA for more than 30 seconds. At this time, the microcontroller circuit 104 may close the load switch Q every time a preset time period elapses, so that the supply current at the power supply interface 102 is greater than the shutdown interface current of the power supply device 105.
In some embodiments, the duration of the preset time period must be less than a specific time period to achieve continuous power supply of the power supply device, for example, the specific time period of the interface of the power supply device 105 is 30 seconds, and the preset time period may be 25 seconds, and may also be set according to requirements.
In the embodiment of the application, the on and off of the load switch are periodically controlled, so that the load resistor can be prevented from continuously consuming current, and unnecessary electric energy loss and continuous heating of low-current equipment are avoided.
In some embodiments, the device operating circuitry 101 includes at least device driver circuitry 1011 and device circuitry 1012 electrically coupled. Fig. 5 is a schematic structural diagram of a power supply circuit of an electronic device according to an embodiment of the present disclosure, and as shown in fig. 5, the device driving circuit 1011 is respectively connected to the microcontroller circuit 104 and the power supply interface 102, and is configured to supply power to the device circuit 1012.
In some embodiments, the device circuitry 1012 includes at least a charge management chip and a charge indication terminal; the charging management chip is connected with the charging indication end and used for displaying the charging state of the low-current equipment. The charge indicator may be an indicator light, for example, a low current device that is not fully charged may illuminate a yellow light, and a fully charged may illuminate a green light.
In some embodiments, the device power supply circuit further includes a key control circuit 107, fig. 5 is a schematic structural diagram of the electronic device power supply circuit provided in the embodiment of the present application, as shown in fig. 5, the key control circuit 107 is connected to the microcontroller circuit 104, the key control circuit 107 may be connected to a low-current peripheral key, and a user controls on/off of the device circuit 1012 by pressing the peripheral key to control whether to supply power to the low-current device.
In some embodiments, the device driving circuit 1011 may be a transformer for converting a voltage input to the power interface to form a voltage having a fixed value, so as to power the device circuit with the voltage having the fixed value.
In the embodiment of the present application, the low-current device may be an aromatherapy machine, a bluetooth headset, an atomizer, or the like. When the low current device is a nebulizer, the device driving circuit 1011 may be a nebulization driving circuit, and is configured to convert the power supply voltage input by the power supply interface 102 into a voltage within a certain range through the microcontroller circuit 104 at a certain duty cycle and frequency, so as to supply power to the nebulizer. The atomizer generally comprises an atomizing sheet and a connector, and is operated by applying a voltage with a certain frequency to atomize liquid into gas and diffuse the gas out. The nebulizer may also include some atmosphere lamp circuitry.
According to the power supply circuit of the electronic equipment, the intelligent load circuit is controlled to be closed through the microcontroller circuit, so that the output function of an interface cannot be closed due to the fact that the current of low-current equipment is too small, and the power supply equipment can continuously supply power to the running circuit of the low-current equipment; and because the power supply circuit of this application embodiment sets up in undercurrent equipment side, need not to change current adapter and treasured that charges, just can supply power to the undercurrent equipment that this application provided, need not to dispose corresponding adapter for undercurrent equipment, the cost is reduced.
The above description is only an example of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and scope of the present invention are all included within the protection scope of the present invention.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are merely for description, and do not represent the advantages and disadvantages of the embodiments.
The above description is only for the embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A power supply circuit of electronic equipment is applied to low-current equipment; the intelligent load circuit is characterized in that the circuit at least comprises an equipment operation circuit, a power supply interface, an intelligent load circuit and a microcontroller circuit which are electrically connected in sequence;
the equipment operation circuit is respectively connected with the power supply interface and the microcontroller circuit and is used for driving the low-current equipment to operate;
the power supply interface is connected with power supply equipment, and the power supply equipment is used for supplying power to the low-current equipment;
the microcontroller circuit is used for controlling the intelligent load circuit to be closed, so that the power supply interface continuously supplies power to the equipment operation circuit.
2. The circuit of claim 1, wherein the device power supply circuit further comprises a microcontroller power supply circuit;
the microcontroller power supply circuit is respectively connected with the power supply interface and the microcontroller circuit and used for supplying power to the microcontroller circuit.
3. The circuit of claim 1, wherein the smart load circuit comprises at least a load resistor;
the load resistor is connected with the equipment operation circuit in parallel, and the load resistor is used for enabling the power supply current at the power supply interface to be larger than the closing interface current of the power supply equipment.
4. The circuit of claim 3, wherein the smart load circuit further comprises a load switch electrically connected to the load resistor;
the microcontroller circuit is connected with the load switch, and the microcontroller circuit is used for closing the load switch every time a preset time period passes, so that the power supply current at the power supply interface is larger than the interface closing current of the power supply equipment.
5. The circuit of claim 4, wherein the supply current is greater than 100 milliamps.
6. The circuit of claim 4, wherein the power supply device stops supplying power if the supply current at the power supply interface is less than a duration of the power supply device closing the interface current for more than a certain duration;
the duration of the preset time period is less than the specific duration.
7. The circuit of any one of claims 1 to 6, wherein the device operating circuit comprises at least a device driver circuit and a device circuit electrically connected to each other;
the equipment driving circuit is respectively connected with the microcontroller circuit and the power supply interface and used for supplying power to the equipment circuit.
8. The circuit of claim 7, wherein the device circuit comprises at least a charge management chip and a charge indicator terminal;
the charging management chip is connected with the charging indication end and used for displaying the charging state of the low-current equipment.
9. The circuit of claim 7, wherein the device power supply circuit further comprises a key control circuit;
the key control circuit is connected with the microcontroller circuit and is used for controlling the on-off of the equipment circuit.
10. The circuit of claim 7, wherein the device driver circuit comprises at least a transformer;
the transformer is used for converting the voltage input by the power supply interface to form a voltage with a fixed value so as to supply power to the equipment circuit through the voltage with the fixed value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222760356.8U CN218850430U (en) | 2022-10-19 | 2022-10-19 | Power supply circuit of electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222760356.8U CN218850430U (en) | 2022-10-19 | 2022-10-19 | Power supply circuit of electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218850430U true CN218850430U (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222760356.8U Active CN218850430U (en) | 2022-10-19 | 2022-10-19 | Power supply circuit of electronic equipment |
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| Country | Link |
|---|---|
| CN (1) | CN218850430U (en) |
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- 2022-10-19 CN CN202222760356.8U patent/CN218850430U/en active Active
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