CN114285128A - Outdoor equipment power supply control circuit, outdoor equipment power supply system and outdoor equipment - Google Patents
Outdoor equipment power supply control circuit, outdoor equipment power supply system and outdoor equipment Download PDFInfo
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- CN114285128A CN114285128A CN202111625044.XA CN202111625044A CN114285128A CN 114285128 A CN114285128 A CN 114285128A CN 202111625044 A CN202111625044 A CN 202111625044A CN 114285128 A CN114285128 A CN 114285128A
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- 238000010277 constant-current charging Methods 0.000 description 5
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Abstract
The invention discloses a power supply control circuit of outdoor equipment, a power supply system of the outdoor equipment and the outdoor equipment, wherein the outdoor equipment comprises an outdoor equipment load, and the power supply control circuit of the outdoor equipment comprises: the power input port is used for accessing power supply equipment; the power output port is electrically connected with an outdoor equipment load; the system power supply detection control circuit is respectively connected with the power supply input port and the power supply output port; and the system power supply detection control circuit is used for detecting the type of the power supply equipment accessed by the power supply input port and controlling the on/off between the power supply input port and the power supply output port according to the detected type of the power supply equipment. The invention solves the problems that when the power supply equipment is not enough to support the power supply for the outdoor equipment load, the outdoor equipment load is directly powered off, and even data is lost when the outdoor equipment load is serious.
Description
Technical Field
The invention relates to the technical field of electronic circuits, in particular to an outdoor equipment power supply control circuit, an outdoor equipment power supply system and outdoor equipment.
Background
The load in the outdoor equipment can be matched with various power supply equipment for supplying power, such as a power adapter, a solar panel, a mobile power supply and the like; the current common state is that power adapter and solar energy electroplax share a interface that charges, is subject to multiple factors, and power supply equipment such as solar energy electroplax probably can't support the system power supply for a long time, will appear when the battery does not exist or the electric quantity is not enough scheduling problem, and the system can fall the power, and data can lose.
Disclosure of Invention
The invention mainly aims to provide an outdoor equipment power supply control circuit, an outdoor equipment power supply system and outdoor equipment, and aims to solve the problems that when power supply equipment is not enough to support power supply for outdoor equipment loads, the outdoor equipment loads are directly powered off, and even data are lost when the outdoor equipment loads are serious.
In order to achieve the above object, the present invention provides an outdoor device power supply control circuit, which is applied to an outdoor device, wherein the outdoor device includes an outdoor device load, and the outdoor device power supply control circuit includes:
the power input port is used for accessing power supply equipment;
the power output port is electrically connected with an outdoor equipment load;
the system power supply detection control circuit is respectively connected with the power supply input port and the power supply output port; the system power supply detection control circuit is used for detecting the type of power supply equipment accessed by the power supply input port and controlling the on/off between the power supply input port and the power supply output port according to the detected type of the power supply equipment.
Optionally, the system power supply detection control circuit is specifically configured to control the power input port to be electrically disconnected from the power output port when it is detected that the power supply device connected to the power input port is a solar panel;
when detecting that the power supply equipment accessed by the power input port is a mobile power supply or a power adapter, controlling the power input port to be electrically connected with the power output port so as to supply power to the outdoor equipment load.
Optionally, the outdoor equipment power supply control circuit further includes:
and the energy storage system is respectively connected with the power input port and the power output port and is used for storing the electric energy output by the power supply equipment.
Optionally, the system power supply detection control circuit is further configured to detect the electric quantity stored in the energy storage system when detecting that the power supply device connected to the power input port is a solar panel, and control the power input port to be electrically connected to the power output port when the electric quantity stored in the energy storage system is greater than or equal to a first electric quantity threshold value, so as to control the solar panel to supply power to the outdoor device load.
Optionally, the energy storage system comprises:
the input end of the charging chip is connected with the power input port, and the output end of the charging chip is connected with the energy storage battery.
Optionally, the system power supply detection control circuit is further configured to control the energy storage system to supply power to the outdoor device load when detecting that the power supply device connected to the power input port is a solar panel.
Optionally, the system power supply detection control circuit is further configured to detect power of a solar panel when it is detected that the power supply device connected to the power input port is the solar panel, and control the power input port and the power output port to be electrically connected when it is detected that the power of the solar panel is greater than or equal to a first power threshold.
Optionally, the outdoor equipment power supply control circuit further comprises an equipment type identification port;
the system power supply detection control circuit comprises:
the power supply control switch is arranged between the power supply input port and the power supply output port in series;
the controlled end of the detection trigger switch is connected with the equipment type identification port, and the output end of the detection trigger switch is connected with the controlled end of the power supply control switch; the detection trigger switch is used for outputting a turn-off trigger signal when being triggered by the accessed solar panel so as to control the power supply control switch to break the electric connection between the power supply input port and the power supply output port; and when the power supply control switch is triggered by the accessed mobile power supply or the power adapter, outputting a starting trigger signal to switch on the electric connection between the power supply input port and the power supply output port.
The invention also provides an outdoor equipment power supply system, which comprises a solar panel and the outdoor equipment power supply control circuit;
the solar panel is connected with the outdoor equipment power supply control circuit, and when the solar panel is connected to the outdoor equipment power supply control circuit, the solar panel outputs a first marking signal to the outdoor equipment power supply control circuit;
and the outdoor equipment power supply control circuit is used for disconnecting the electric connection between the solar panel and the outdoor equipment load when the first marking signal is received.
The invention also provides outdoor equipment, which comprises a solar panel and the outdoor equipment power supply control circuit;
or, include an outdoor equipment power supply system as described above.
The invention detects the type of the power supply equipment accessed by the power supply input port by setting the system power supply detection control circuit, and controls the on/off between the power supply input port and the power supply output port according to the detected type of the power supply equipment, so as to disconnect the electric connection between the power supply equipment and the outdoor equipment load when detecting that the accessed power supply equipment is equipment which can not directly supply power to the outdoor equipment load. The invention solves the problems that when the power supply equipment is not enough to support the power supply for the outdoor equipment load, the outdoor equipment load is directly powered off, and even data is lost when the outdoor equipment load is serious.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a functional structure diagram of an embodiment of a power supply control circuit for outdoor equipment according to the present invention;
fig. 2 is a schematic circuit structure diagram of an embodiment of the outdoor device power supply control circuit in fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 10 | System power supply detection control circuit | VBUS_5V | |
|
| 11 | Power supply control switch | VBUS_5V_P | Power supply output port | |
| 12 | Detecting trigger switch | USB_P | Device |
|
| 20 | Energy storage system | | Charging chip | |
| 30 | Electrical connector | BT1 | |
|
| 100 | Outdoor equipment load |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The invention provides an outdoor equipment power supply control circuit, which is applied to outdoor equipment, wherein the outdoor equipment comprises an outdoor equipment load 100.
Referring to fig. 1 and 2, in an embodiment of the present invention, the outdoor device power supply control circuit includes:
the power input port VBUS _5V is used for accessing power supply equipment;
a power output port VBUS _5V _ P electrically connected to the outdoor equipment load 100;
the system power supply detection control circuit 10 is respectively connected with the power input port VBUS _5V and the power output port VBUS _5V _ P; the system power supply detection control circuit 10 is configured to detect a type of a power supply device to which the power input port VBUS _5V is connected, and control on/off between the power input port VBUS _5V and the power output port VBUS _5V _ P according to the detected type of the power supply device.
In this embodiment, the outdoor device may be a doorbell, a surveillance camera, a speaker, or other outdoor devices. Outdoor equipment can also be provided with electrical connector 30, and electrical connector 30 can be connected with the power supply unit electricity, and electrical connector 30 can adopt the USB interface, specifically can realize for Type-C interface, mini USB interface, Type-A interface, Type-B interface or other electrical connector 30 that can realize charging, and electrical connector 30 has power input port VBUS _5V at least. The electrical connector 30 can be connected to different power supply devices, such as a solar panel, a power adapter, a mobile power supply, and the like, that is, the power supply device of this embodiment, such as the power adapter and the solar panel, can share a Type-C interface of one input end, so when one of the two exists, all power supply paths are the same, and all power supply paths can supply power to the whole system and supply power to the energy storage system 20 in the outdoor device, such as charging a battery; in operation, the power adapter and portable power source can provide stable power to the outdoor unit load 100. The solar panel can convert solar energy into direct current electric energy through a photovoltaic effect of the solar cell, and the direct current electric energy is output to outdoor equipment through a power input port VBUS _5V to supply power to outdoor equipment loads 100 in the outdoor equipment. It can be understood that the electric energy which can be generated by the solar panel is limited, and the electric energy generated by the solar panel is also fluctuated due to different weather and sunlight intensity. In addition, be limited by the area of solar energy electroplax, the power of solar energy electroplax can not too big, and the outdoor equipment load 100 power supply can't be supported for a long time to the solar energy electroplax, in case the battery does not exist or when the battery electric quantity is not enough, outdoor equipment load 100 can fall the power, and unable normal work can lead to data to lose even when serious.
Therefore, in the embodiment, the system power supply detection control circuit 10 is provided, an input end of the power supply detection control circuit is connected to the power input port VBUS _5V, an output end of the power supply detection control circuit is connected to the power output port VBUS _5V _ P of the electrical connector 30, and when the system power supply detection control circuit 10 controls the power input port VBUS _5V and the power output port VBUS _5V _ P to be electrically connected, the power supply device may be electrically connected to the outdoor device load 100 through the power input port VBUS _5V and the power output port VBUS _5V _ P, so that the power supply device supplies power to the outdoor device load 100. On the contrary, when the system power supply detection control circuit 10 controls the power input port VBUS _5V and the power output port VBUS _5V _ P to be disconnected from the electrical connection, a current loop cannot be formed between the power supply device and the outdoor device load 100, so that the power supply device cannot directly supply power to the outdoor device load 100.
The system power supply detection control circuit 10 may detect the type of the power supply device connected to the power input port VBUS _5V, and determine whether the power supply device is a solar panel, a power adapter, or a mobile power supply. Specifically, the system power supply detection control circuit 10 may detect a current voltage value of the electrical connector 30 accessing the external device, and the system power supply detection control circuit 10 may identify a current type of the peripheral power supply device according to the current voltage value and a preset mapping relationship between different voltage values and different interface types. It should be noted that the voltage value detected by the voltage detection circuit may be different when different power supply devices are connected to the electrical connector 30. Therefore, in this embodiment, the corresponding relationship between each power supply device type and the voltage value may be predefined, and subsequently, the accessed power supply device type may be determined based on the mapping relationship. In a specific embodiment, the electrical connector 30 may be provided with a device type identification port USB _ P, and the system power supply detection control circuit 10 may determine the type of the power supply device connected according to the level of the device type identification port USB _ P, or the voltage value. The system power supply detection control circuit 10 determines whether the accessed power supply device is a device capable of directly supplying power to the outdoor device load 100 according to the detected type of the power supply device, and if so, controls the power input port VBUS _5V and the power output port VBUS _5V _ P to be electrically connected, so that the power supply device accessed by the power input port VBUS _5V is controlled to directly supply power to the outdoor device load 100, otherwise, controls the power input port VBUS _5V and the power output port VBUS _5V _ P to be electrically disconnected, and at this time, the power supply device accessed by the power input port VBUS _5V cannot directly supply power to the outdoor device load 100.
The invention detects the type of power supply equipment accessed by a power input port VBUS _5V by arranging a system power supply detection control circuit 10, and controls the on/off between the power input port VBUS _5V and a power output port VBUS _5V _ P according to the detected type of the power supply equipment, so that when the accessed power supply equipment is detected to be equipment which can not directly supply power to an outdoor equipment load 100, the power supply equipment is disconnected from the outdoor equipment load 100. The invention solves the problems that when the power supply equipment is not enough to support the power supply to the outdoor equipment load 100, the outdoor equipment load 100 is directly powered off, and even data is lost when the outdoor equipment load is serious.
Referring to fig. 1 and fig. 2, in an embodiment, the system power supply detection control circuit 10 is specifically configured to control, when it is detected that the power supply device connected to the power input port VBUS _5V is a solar panel, the power input port VBUS _5V and the power output port VBUS _5V _ P to be electrically disconnected;
when detecting that the power supply device connected to the power input port VBUS _5V is a mobile power supply or a power adapter, controlling the power input port VBUS _5V to be electrically connected to the power output port VBUS _5V _ P, so as to supply power to the outdoor device load 100.
In this embodiment, the power supply of the solar photovoltaic panel is unstable, so the solar photovoltaic panel is defined as a power supply device that cannot directly supply power to the outdoor device load 100, and the power output of the power adapter and the portable power source is relatively stable, so the power adapter and the portable power source directly supply power to the outdoor device load 100. When the system power supply detection control circuit 10 determines that the accessed power supply device is a mobile power supply or a power adapter, the power input port VBUS _5V and the power output port VBUS _5V _ P are controlled to be electrically connected, and the mobile power supply or the power adapter can be electrically connected with the outdoor device load 100 through the power input port VBUS _5V and the power output port VBUS _5V _ P, so that the power supply device supplies power to the outdoor device load 100. When the system power supply detection control circuit 10 determines that the accessed power supply device is a solar panel, the power input port VBUS _5V and the power output port VBUS _5V _ P are controlled to be electrically disconnected, and a current loop cannot be formed between the solar panel and the outdoor device load 100, so that the solar panel cannot directly supply power to the outdoor device load 100.
Referring to fig. 1 and 2, in an embodiment, the outdoor device power supply control circuit further includes:
the energy storage system 20 is connected to the power input port VBUS _5V and the power output port VBUS _5V _ P, respectively, and the energy storage system 20 is configured to store electric energy output by the power supply device.
In this embodiment, in the outdoor device power supply control circuit, according to different accessed power supply devices, the energy storage system 20 may be selectively set, or the energy storage system 20 may not be selectively set, for example, when the accessed power supply device is a power adapter, the energy storage system 20 may be set, and when the accessed power supply device is a mobile power supply or a solar panel, the energy storage system 20 may be set. Energy storage system 20 directly inserts to power input port VBUS _5V, and when having the access of power supply unit, energy storage system 20 can store the electric energy that power supply unit provided, and power supply unit can be one or more combination in solar energy electroplax, portable power source and the power adapter this moment.
Referring to fig. 1 and fig. 2, in an embodiment, the system power supply detection control circuit 10 is further configured to detect an amount of power stored in the energy storage system 20 when it is detected that the power supply device connected to the power input port VBUS _5V is a solar panel, and control the power input port VBUS _5V to be electrically connected to the power output port VBUS _5V _ P when the amount of power stored in the energy storage system 20 is greater than or equal to a first power threshold, so as to control the solar panel to supply power to the outdoor device load 100.
In this embodiment, when the accessed power supply device is a solar panel, the solar panel preferentially provides electric energy to the energy storage system 20, and when the electric quantity stored in the energy storage system 20 is sufficient (greater than or equal to the first electric quantity threshold value), or the solar panel charges the energy storage system 20, so that the electric quantity stored in the energy storage system 20 is sufficient (greater than or equal to the first electric quantity threshold value), the power input port VBUS _5V is controlled to be electrically connected with the power output port VBUS _5V _ P, so that the solar panel can provide electric energy to the outdoor device load 100, at this time, the solar panel can continue to provide electric energy to the energy storage system 20, and also provide electric energy to the outdoor device load 100, until the energy storage system 20 is fully charged, the energy storage system 20 can stop receiving the electric energy output by the solar panel, and the energy storage system 20 closes its own charging function, the solar panel provides electrical power only to the outdoor equipment load 100. Wherein, the first electric quantity threshold value can be set to any value of 95% -100%. It can be understood that, when the amount of electricity stored in the energy storage system 20 is greater than or equal to the first electricity threshold, the power of the solar panel may also be detected, and it is determined whether the solar panel can provide stable electric energy to the outdoor equipment load 100 according to the current power of the solar panel, if so, the power input port VBUS _5V is controlled to be electrically connected to the power output port VBUS _5V _ P, otherwise, the power of the solar panel is smaller than the power required by the outdoor equipment load 100, that is, at the same time, the energy storage system 20 is charging or supplying power to the outdoor equipment load 100, and only one of the power input port VBUS _5V _ P and the power output port VBUS _5V _ P is preferentially supplied, that is, the power input port VBUS _5V is controlled to be electrically disconnected from the power output port VBUS _5V _ P. The present embodiment may specifically determine the power of the solar panel by detecting the current illumination intensity through an ambient light sensor, or detecting the current output power of the solar panel through a power meter. For example, in a time period when the illumination is strong and the power is high, the solar panel may be controlled to simultaneously supply power to the outdoor device load 100 and the energy storage system 20, and in a time period when the illumination is weak and the power is low, the solar panel may be controlled to only supply power to the energy storage system 20.
Referring to fig. 1, in one embodiment, the energy storage system 20 includes:
the charging circuit comprises a charging chip U1 and an energy storage battery BT1, wherein the input end of the charging chip U1 is connected with the power input port VBUS _5V, and the output end of the charging chip U1 is connected with the energy storage battery BT 1.
The charging chip U1 is used for converting the electric energy that the power supply unit exported to outdoor equipment into the required electric energy of outdoor equipment, exports the energy storage battery BT1 and stores. Specifically, the charging chip U1 may perform DC-DC conversion, filtering, and the like on the power received at the power input of the electrical connector 30. The charging chip U1 can adjust the charging current and the charging voltage during charging, so that the charging of the energy storage battery BT1 can be in different stages. Optionally, the charging process of the charging chip U1 includes, but is not limited to, a pre-charging phase, a constant current charging phase, and a constant voltage charging phase. A pre-charge stage for pre-charging (restorative charging) the fully discharged battery cells. The pre-charging is usually performed when the battery voltage is lower than about 3V. And a constant current charging stage, when the battery voltage rises to a preset charging threshold value, for example 3V, increasing the charging current to perform constant current charging. In the constant current charging stage, the battery voltage gradually rises along with the constant current charging process.
Referring to fig. 1 and fig. 2, in an embodiment, the system power supply detection control circuit 10 is further configured to control the energy storage system 20 to supply power to the outdoor equipment load 100 when it is detected that the power supply device connected to the power input port VBUS _5V is a solar panel.
In this embodiment, in the process of charging the energy storage system 20 by the solar panel, in order to maintain the normal operation of the outdoor device load 100, the outdoor device load 100 may be powered by the energy storage system 20 in this embodiment, and when the power adapter is connected, the power adapter simultaneously powers the energy storage system 20 and the outdoor device load 100, and at this time, the energy storage system 20 does not power the outdoor device load 100. It can be understood that, when the power supply device connected to the electrical connector 30 is a solar panel, in order to ensure stable power supply of the outdoor device load 100, the energy storage system 20 is preferentially controlled to supply power to the outdoor device load 100 in the embodiment. However, in practice, the energy storage system 20 may be too low to support powering the outdoor equipment load 100. In order to ensure that the outdoor device load 100 does not lose power due to too low power of the energy storage system 20, and even lose data in case of a serious condition, the embodiment may first determine the power stored in the energy storage system 20, so that the outdoor device load 100 cannot normally operate due to low power stored in the energy storage system 20, when the power of the energy storage system 20 is lower than the minimum operating power threshold, that is, the power of the energy storage system 20 is insufficient, preferentially supply power to the energy storage system 20, and turn off the power supply function of the energy storage system 20 for the outdoor device load 100, thereby preventing the outdoor device load 100 from further consuming the power of the energy storage system 20. Therefore, when the power supply device connected to the electrical connector 30 is determined to be a solar panel, the amount of power stored in the energy storage system 20 is detected, and when the detected amount of power stored in the energy storage system 20 is less than the minimum operating power threshold, the energy storage system 20 is controlled to stop supplying power to the outdoor device load 100. Specifically, when it is detected that the electrical connector 30 is connected to the power supply device, if the power supply device is plugged into a Type-C interface of the outdoor device, the power amount of the energy storage system 20 is detected, and the power amount of the energy storage system 20 is compared with the minimum working power threshold. When the amount of power stored by the energy system is less than the minimum operating power threshold, the energy storage system 20 only receives the electric power of the solar panel and does not transmit the electric power to the outdoor equipment load 100, and the solar panel only supplies power to the energy storage system 20 and does not supply power to the outdoor equipment load 100. The solar panel only supplies power to the energy storage system 20, so that the solar panel is not frequently cut off, the solar panel charges the energy storage system 20 instead of supplying power to the outdoor equipment load 100, and the cruising ability of the energy storage system 20 can be improved. The minimum working power threshold is the minimum power required by the outdoor equipment load 100 to work normally, and the outdoor equipment load 100 cannot work normally when being lower than the minimum working power threshold.
In an embodiment, the system power detection control circuit 10 may further control the energy storage system 20 to supply power to the outdoor equipment load 100 when the detected amount of power stored in the energy storage system 20 is greater than or equal to a second power threshold.
In this embodiment, the power of the solar panel cannot maintain simultaneous power supply to the outdoor equipment load 100 and the energy storage system 20. When it is determined that the electric quantity of the energy storage system 20 is greater than or equal to the second electric quantity threshold, the energy storage system 20 may close or maintain its charging function, and at the same time, control the energy storage system 20 to supply power to the outdoor device load 100, and continuously determine the electric quantity of the energy storage system 20:
when the electric quantity of the energy storage system 20 is smaller than a second preset electric quantity threshold value, controlling the energy storage system 20 to start a charging function of the energy storage system 20, and simultaneously controlling the energy storage system 20 to stop supplying power to the outdoor equipment load 100, wherein the energy storage system 20 starts to charge;
and when the electric quantity of the energy storage system 20 is greater than or equal to a second preset electric quantity threshold value, controlling the energy storage system 20 to supply power to the outdoor equipment load 100 until the electric quantity of the energy storage system 20 is less than the second preset electric quantity threshold value. The second preset electric quantity threshold value represents an electric quantity value at which the electric quantity of the energy storage system 20 is about to reach the minimum working electric quantity threshold value, and the outdoor equipment load 100 is prevented from being continuously charged when the energy storage system 20 reaches the minimum working electric quantity threshold value, so that the outdoor equipment load 100 is prevented from being directly powered down due to low electric quantity of the energy storage system 20. And when the electric quantity of the energy storage system 20 is smaller than the second preset electric quantity threshold value, a microcontroller and the like in the outdoor equipment load 100 can be triggered to store data, so as to prevent the system data loss caused by instantaneous power failure.
Referring to fig. 1 and 2, in an embodiment, the system power supply detection control circuit 10 is further configured to detect a power of a solar panel when the power supply device connected to the power input port VBUS _5V is detected to be a solar panel, and control the power input port VBUS _5V to be electrically connected to the power output port VBUS _5V _ P when the power of the solar panel is detected to be greater than or equal to a first power threshold.
In this embodiment, the voltage and the current output by the solar panel after the photoelectric conversion are nonlinear, and along with the change of the sunshine condition, the output by the solar panel after the photoelectric conversion is electric energy with larger power, that is, when the sunshine is sufficient, the solar panel can absorb more solar energy and convert the solar energy into charging electric energy to the maximum extent. When the power of the solar panel is sufficient (greater than or equal to the first power threshold) and can supply power to the energy storage system 20 and the outdoor equipment load 100 at the same time, the power input port VBUS _5V and the power output port VBUS _5V _ P can be controlled to be electrically connected, so that the solar panel is like the outdoor equipment load 100, and once the power of the solar panel is less than the first power threshold, the power input port VBUS _5V and the power output port VBUS _5V _ P are controlled to be electrically disconnected, at this time, the power supply equipment connected to the power input port VBUS _5V only charges the energy storage system 20, and cannot directly supply power to the outdoor equipment load 100.
Referring to fig. 2, in an embodiment, the outdoor device power supply control circuit further includes a device type identification port USB _ P;
the system power supply detection control circuit 10 includes:
the power supply control switch 11 is arranged between the power input port VBUS _5V and the power output port VBUS _5V _ P in series;
a controlled end of the detection trigger switch 12 is connected with the device type identification port USB _ P, and an output end of the detection trigger switch 12 is connected with a controlled end of the power supply control switch 11; the detection trigger switch 12 is configured to output a turn-off trigger signal when triggered by an accessed solar panel, so as to control the power supply control switch 11 to disconnect the electrical connection between the power input port VBUS _5V and the power output port VBUS _5V _ P; and when the mobile power supply or the power adapter is triggered, outputting a starting trigger signal to connect the power input port VBUS _5V and the power output port VBUS _5V _ P through the power supply control switch 11.
In this embodiment, the power supply control switch 11 may be implemented by a PMOS transistor Q14, the detection trigger switch 12 may be implemented by two switching transistors, an NMOS transistor Q15 and a PMOS transistor Q16, a gate of the NMOS transistor Q15 is connected to the power input terminal and the device type identification port USB _ P of the electrical connector 30, a source of the NMOS transistor Q15 is connected to the power input port VBUS _5V through a pull-up resistor R1, a drain of the NMOS transistor Q15 is connected to a power input terminal USB _ P _ BLE that can be connected to a load, for example, a microcontroller in the outdoor device load 100, and is connected to the power output terminal VSYS _3V3 of the outdoor device load 100, the power output VSYS 3V3 of the outdoor unit load 100 is at a lower voltage than the power voltage at the power input port VBUS 5V, in one embodiment, a pull-up resistor R2 may be connected in series between the power output VSYS _3V3 of the outdoor unit load 100 and the power input USB _ P _ BLE of the microcontroller. The grid electrode of the PMOS tube Q16 is connected with the source electrode of the NMOS tube Q15 and the power input port VBUS _5V, the source electrode of the PMOS tube Q16 is connected with the controlled end of the power supply control switch 11, and the drain electrode of the PMOS tube Q16 is grounded. It is understood that a pull-down resistor is disposed in the solar cell panel, and the pull-down resistor is connected to the gate of the NMOS transistor Q15 at the device type identification port USB _ P connected to the electrical connector 30.
When a common power adapter is connected, the device type identification port USB _ P is connected without a pull-down resistor, the power input port VBUS _5V outputs a high level signal to the NMOS transistor Q15 through the pull-up resistor R1, that is, the gate voltage of the NMOS transistor Q15 is pulled up, the NMOS transistor Q15 is controlled to be turned on, so that the gate voltage of the PMOS transistor Q16 is pulled down, the PMOS transistor Q16 is controlled to be turned on, the gate of the PMOS transistor Q14 is pulled down by the low level output by the PMOS transistor Q16 to be turned on, and the power input port VBUS _5V is turned on to the power output port VUBS _5V _ P, so that the whole outdoor device load 100 is powered.
When the solar panel is inserted, because the device type identification port USB _ P has a pull-down resistor, the gate voltage of the NMOS transistor Q15 is clamped at a low level, so that the NMOS transistor Q15 is not turned on, the gate voltage of the PMOS transistor Q16 is high (pulled high by the power input terminal VBUS _ 5V), the PMOS transistor Q16 is turned off, the gate of the PMOS transistor Q14 is pulled high by the high level of the power input port VBUS _5V, and is turned off, the power input port VBUS _5V is not turned on to the power output port VBUS _5V _ P, and the solar panel does not supply power to the outdoor device load 100.
In some embodiments, the system power supply detection control circuit 10 further includes resistors R3 and R4, the resistor R3 is serially disposed between the power input port VBUS _5V and the input terminal and the controlled terminal of the power supply control switch 11 (i.e., between the source and the gate of the PMOS transistor), and the resistor R4 is serially disposed between the controlled terminal of the power supply control switch 11 and the output terminal of the detection trigger switch 12 (i.e., between the gate of the PMOS transistor Q14 and the source of the NMOS transistor Q15). According to the embodiment, the ID pull-down function is utilized according to the ID signal on the solar panel to distinguish the type of the power supply equipment with type-c access, so that the power supply path of the solar panel to the outdoor equipment load 100 is cut off, the solar panel only supplies power to the charging chip U1 and does not supply power to the outdoor equipment load 100; moreover, the system power supply detection control circuit 10 of the embodiment is implemented by using MOS transistors Q14, Q15, Q16, a resistor R1, and the like, and when the outdoor device load 100 is not running, a hardware architecture can be used to control the disconnection between the outdoor device load 100 and the solar panel, and no other chip is required to be added for control, even if the energy storage system 20 does not exist, the system power supply detection control circuit 10 can be used to cut off the power supply path between the solar panel and the outdoor device load 100, thereby solving the problems of insufficient power supply capability of the solar panel, product failure, and blank recorded data.
Certainly, in other embodiments, the system power supply detection control circuit 10 may also be implemented by using a microcontroller and a switching tube, for example, a microprocessor such as a single chip microcomputer and a DSP, where the microcontroller may control on/off between the power supply device and the electrical connector by controlling on/off of the switching tube, and a software program for implementing data analysis and comparison may be integrated in the microcontroller to process data of the detected type of the power supply device, the electric quantity of the energy storage system 20, and the power of the solar panel, and generate corresponding control signals, so as to control on/off of the switching tube.
The invention also provides an outdoor equipment power supply system, which comprises a solar panel and the outdoor equipment power supply control circuit;
the solar panel is connected with the outdoor equipment power supply control circuit, and when the solar panel is connected to the outdoor equipment power supply control circuit, the solar panel outputs a first marking signal to the outdoor equipment power supply control circuit;
and the outdoor equipment power supply control circuit is used for disconnecting the electric connection between the solar panel and the outdoor equipment load 100 when the first marking signal is received.
The detailed structure of the outdoor device power supply control circuit can refer to the above embodiments, and is not described herein again; it can be understood that, because the outdoor device power supply control circuit is used in the outdoor device power supply system of the present invention, an embodiment of the outdoor device power supply system of the present invention includes all technical solutions of all embodiments of the outdoor device power supply control circuit, and the achieved technical effects are also completely the same, and are not described herein again.
In this embodiment, a pull-down resistor is disposed in the solar cell panel, and the pull-down resistor is connected to the device type identification port USB _ P of the electrical connector 30, and the pull-down resistor is connected to the system power supply detection control circuit 10 in the outdoor device power supply control circuit. When the solar panel is connected to the power input port VBUS _5V of the electrical connector 30, a low level signal, that is, a first indication signal, is output to the system power supply detection control circuit 10, and when the first indication signal is received, it indicates that the type of the power supply device to which the power input port VBUS _5V is connected is the solar panel, at this time, the power input port VBUS _5V is controlled to be electrically disconnected from the power output port VBUS _5V _ P, and a current loop cannot be formed between the solar panel and the outdoor device load 100, so that the solar panel cannot directly supply power to the outdoor device load 100. On the contrary, when the mobile power supply or the power adapter is connected to the power input port of the electrical connector, because the pull-down resistor is not set, the low-level signal is not output, and therefore, when the power supply equipment is connected to the electrical connector and does not receive the first marking signal, the type of the power supply equipment connected to the power input port is the mobile power supply or the power adapter.
The invention also provides outdoor equipment, which comprises an outdoor equipment load 100 and the outdoor equipment power supply control circuit; or, include an outdoor equipment power supply system as described above. The detailed structures of the outdoor device power supply control circuit and the outdoor device power supply system can refer to the above embodiments, and are not described herein again; it can be understood that, because the outdoor device power supply control circuit and the outdoor device power supply system are used in the outdoor device of the present invention, the embodiment of the outdoor device of the present invention includes all technical solutions of all embodiments of the outdoor device power supply control circuit and the outdoor device power supply system, and the achieved technical effects are also completely the same, and are not described herein again.
In this embodiment, the outdoor device load 100 may include, but is not limited to, an outdoor device button, a microcontroller, an outdoor device speaker, a power management circuit, a clock circuit, etc., and in some embodiments, the outdoor device load 100 may further be provided with a display screen, a wireless communication module, etc. The power management circuit is connected with a power output port VBUS _5V _ P of the outdoor equipment power supply control circuit, and can be provided with a plurality of output ends and used for providing required working voltage for outdoor equipment keys, a microcontroller, an outdoor equipment loudspeaker, a clock circuit and the like so as to drive each circuit module to work. The microcontroller may be a control center of the outdoor device load 100, and the microcontroller may further be communicatively connected to a power supply device through the electrical connector 30, such as a power adapter, a mobile power supply, and the like, and in the working process, the power management circuit works in different modes, such as a standby mode, a normal working mode, or a shutdown mode, according to a control signal of the microcontroller. It can be understood that the power supplied by the power supply device may be 5V or higher, the power supplied by the microcontroller, such as a single chip, a DSP, etc., is usually 3.3V, and the power management circuit of the outdoor device load 100 may step down the power supplied by the power supply device to provide the microcontroller with the operating voltage required by the microcontroller.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An outdoor equipment power supply control circuit is applied to outdoor equipment, and the outdoor equipment comprises an outdoor equipment load, and is characterized in that the outdoor equipment power supply control circuit comprises:
the power input port is used for accessing power supply equipment;
the power output port is electrically connected with an outdoor equipment load;
the system power supply detection control circuit is respectively connected with the power supply input port and the power supply output port; the system power supply detection control circuit is used for detecting the type of power supply equipment accessed by the power supply input port and controlling the on/off between the power supply input port and the power supply output port according to the detected type of the power supply equipment.
2. The outdoor unit power supply control circuit according to claim 1, wherein the system power supply detection control circuit is specifically configured to control the power input port to be electrically disconnected from the power output port when it is detected that the power supply unit connected to the power input port is a solar panel;
when detecting that the power supply equipment accessed by the power input port is a mobile power supply or a power adapter, controlling the power input port to be electrically connected with the power output port so as to supply power to the outdoor equipment load.
3. The outdoor unit power supply control circuit of claim 1 wherein said outdoor unit power supply control circuit further comprises:
and the energy storage system is respectively connected with the power input port and the power output port and is used for storing the electric energy output by the power supply equipment.
4. The outdoor equipment power supply control circuit of claim 3, wherein the system power supply detection control circuit is further configured to detect the amount of power stored in the energy storage system when it is detected that the power supply equipment connected to the power input port is a solar panel, and to control the power input port to be electrically connected to the power output port when the amount of power stored in the energy storage system is greater than or equal to a first power threshold value, so as to control the solar panel to supply power to the outdoor equipment load.
5. The outdoor unit power supply control circuit of claim 3 wherein said energy storage system comprises:
the input end of the charging chip is connected with the power input port, and the output end of the charging chip is connected with the energy storage battery.
6. The outdoor unit power supply control circuit of claim 3, wherein the system power supply detection control circuit is further configured to control the energy storage system to supply power to the outdoor unit load when it is detected that the power supply device connected to the power input port is a solar panel.
7. The outdoor unit power supply control circuit according to claim 1, wherein the system power supply detection control circuit is further configured to detect power of a solar panel when the power supply unit connected to the power input port is detected to be a solar panel, and control the power input port to be electrically connected to the power output port when the power of the solar panel is detected to be greater than or equal to a first power threshold.
8. The outdoor unit power supply control circuit of any one of claims 1 to 7 wherein said outdoor unit power supply control circuit further comprises a device type identification port;
the system power supply detection control circuit comprises:
the power supply control switch is arranged between the power supply input port and the power supply output port in series;
the controlled end of the detection trigger switch is connected with the equipment type identification port, and the output end of the detection trigger switch is connected with the controlled end of the power supply control switch; the detection trigger switch is used for outputting a turn-off trigger signal when being triggered by the accessed solar panel so as to control the power supply control switch to break the electric connection between the power supply input port and the power supply output port; and when the power supply control switch is triggered by the accessed mobile power supply or the power adapter, outputting a starting trigger signal to switch on the electric connection between the power supply input port and the power supply output port.
9. An outdoor equipment power supply system, characterized by comprising a solar panel and an outdoor equipment power supply control circuit according to any one of claims 1 to 8;
the solar panel is connected with the outdoor equipment power supply control circuit, and when the solar panel is connected to the outdoor equipment power supply control circuit, the solar panel outputs a first marking signal to the outdoor equipment power supply control circuit;
and the outdoor equipment power supply control circuit is used for disconnecting the electric connection between the solar panel and the outdoor equipment load when the first marking signal is received.
10. An outdoor unit comprising a solar panel and an outdoor unit power supply control circuit according to any one of claims 1 to 8;
or, comprising an outdoor equipment power supply system according to claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111625044.XA CN114285128A (en) | 2021-12-28 | 2021-12-28 | Outdoor equipment power supply control circuit, outdoor equipment power supply system and outdoor equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111625044.XA CN114285128A (en) | 2021-12-28 | 2021-12-28 | Outdoor equipment power supply control circuit, outdoor equipment power supply system and outdoor equipment |
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| CN114285128A true CN114285128A (en) | 2022-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114421446A (en) * | 2021-12-28 | 2022-04-29 | 歌尔科技有限公司 | Outdoor equipment power supply control method, power supply control system and outdoor equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0100980D0 (en) * | 2001-01-13 | 2001-02-28 | Solar Highways Ltd | Mobile power supply unit |
| CN101702529A (en) * | 2009-11-26 | 2010-05-05 | 上海交通大学 | Photovoltaic movable emergency power supply system and method thereof |
| CN103066687A (en) * | 2012-11-19 | 2013-04-24 | 宁波金源电气有限公司 | Uninterrupted power supply (UPS) solar charged inverter |
| WO2013078668A1 (en) * | 2011-12-02 | 2013-06-06 | 拓实电子（深圳）有限公司 | Solar dual-supply circuit |
| CN104967191A (en) * | 2015-07-28 | 2015-10-07 | 青岛歌尔声学科技有限公司 | Charging circuit used for mobile power supply and mobile power supply |
| JP2017204908A (en) * | 2016-05-09 | 2017-11-16 | モッツエンボッカー マービン | DC smart grid and smart outlet |
| WO2018036325A1 (en) * | 2016-08-23 | 2018-03-01 | 中兴通讯股份有限公司 | Switched-mode power supply parallel operation system |
| CN109756021A (en) * | 2017-11-07 | 2019-05-14 | 广东美的生活电器制造有限公司 | Power-supplying circuit and electrical equipment |
-
2021
- 2021-12-28 CN CN202111625044.XA patent/CN114285128A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0100980D0 (en) * | 2001-01-13 | 2001-02-28 | Solar Highways Ltd | Mobile power supply unit |
| CN101702529A (en) * | 2009-11-26 | 2010-05-05 | 上海交通大学 | Photovoltaic movable emergency power supply system and method thereof |
| WO2013078668A1 (en) * | 2011-12-02 | 2013-06-06 | 拓实电子（深圳）有限公司 | Solar dual-supply circuit |
| CN103066687A (en) * | 2012-11-19 | 2013-04-24 | 宁波金源电气有限公司 | Uninterrupted power supply (UPS) solar charged inverter |
| CN104967191A (en) * | 2015-07-28 | 2015-10-07 | 青岛歌尔声学科技有限公司 | Charging circuit used for mobile power supply and mobile power supply |
| JP2017204908A (en) * | 2016-05-09 | 2017-11-16 | モッツエンボッカー マービン | DC smart grid and smart outlet |
| WO2018036325A1 (en) * | 2016-08-23 | 2018-03-01 | 中兴通讯股份有限公司 | Switched-mode power supply parallel operation system |
| CN109756021A (en) * | 2017-11-07 | 2019-05-14 | 广东美的生活电器制造有限公司 | Power-supplying circuit and electrical equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114421446A (en) * | 2021-12-28 | 2022-04-29 | 歌尔科技有限公司 | Outdoor equipment power supply control method, power supply control system and outdoor equipment |
| WO2023123759A1 (en) * | 2021-12-28 | 2023-07-06 | 歌尔股份有限公司 | Outdoor device power supply control method and system, and outdoor device |
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