CN218482697U - Adjustable charger circuit and charger based on solar energy - Google Patents
Adjustable charger circuit and charger based on solar energy Download PDFInfo
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- CN218482697U CN218482697U CN202222080295.0U CN202222080295U CN218482697U CN 218482697 U CN218482697 U CN 218482697U CN 202222080295 U CN202222080295 U CN 202222080295U CN 218482697 U CN218482697 U CN 218482697U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to an electronic circuit technical field, in particular to adjustable charger circuit and charger based on solar energy, the circuit includes solar charging panel, energy storage module, switch module, energy storage afterflow module, detection module and control module. The solar charging panel is used for converting solar energy into electric energy, and the energy storage module is used for storing the electric energy converted by the solar charging panel; the detection module is used for detecting the output electric parameters of the energy storage follow current module; the control module is used for controlling the working state of the switch module according to the electrical parameter signal received by the detection module and a preset electrical parameter value so as to adjust the output electrical parameter value of the energy storage follow current module; wherein the electrical parameters include current and voltage. The charger circuit and the charger can adapt to batteries of various specifications, have wide application range and are convenient for users to charge the batteries of different specifications.
Description
Technical Field
The application relates to the technical field of power electronics, in particular to an adjustable charger circuit based on solar energy and a charger.
Background
The solar energy technology is applied to the automobile field and used as a new energy driven automobile, so that the advantages are achieved, resources can be saved, the environment is protected, the solar energy is clean energy, and the solar energy is applied to the automobile field and has great significance for current technological development. The application of solar energy to charge the battery of a new energy automobile is a common form of solar energy applied to the automobile field.
As the market demand of new energy vehicles increases, the types of new energy vehicles also increase, and the types of batteries used in the new energy vehicles also increase, because the working voltages of the batteries are different, generally, the battery voltages are 3V, 5V, 12V, 36V, and the like, proper chargers need to be selected respectively corresponding to different voltages of different types of batteries for charging the batteries, so that the types of chargers are also various, and when the batteries with different voltages need to be charged, the chargers need to be frequently replaced, which is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model provides a main objective provides an adjustable charger circuit and charger based on solar energy, aims at solving the inconvenient technical problem that charges that need change a plurality of adaptation chargers and lead to among the prior art when charging for the battery of different voltages.
In order to achieve the above object, the present application provides an adjustable charger circuit based on solar energy, which is used for charging a battery, and includes a solar charging panel, an energy storage module, a switch module, an energy storage freewheeling module, a detection module, and a control module.
The solar energy charging panel is connected with the input end of the energy storage module, the output end of the energy storage module is connected with the first end of the switch module, the second end of the switch module is connected with the input end of the energy storage follow current module, the output end of the energy storage follow current module is used for being connected with a battery, the input end of the detection module is connected with the output end of the energy storage follow current module, and the control module is respectively connected with the control end of the switch module and the output end of the detection module.
The solar charging panel is used for converting solar energy into electric energy, and the energy storage module is used for storing the electric energy converted by the solar charging panel; the detection module is used for detecting the output electric parameter of the energy storage follow current module; the control module is used for controlling the working state of the switch module according to the electrical parameter signal received by the detection module and a preset electrical parameter value so as to adjust the output electrical parameter value of the energy storage follow current module; wherein the electrical parameters include current and voltage.
In some embodiments, the energy storage freewheeling module includes a first inductor, a first capacitor, and a freewheeling unit. The first end of the follow current unit is connected with the second end of the switch module and the first end of the first inductor respectively, the second end of the first inductor is connected with the first end of the first capacitor and the anode for connecting the battery, and the second end of the first capacitor is connected with the second end of the follow current unit and the cathode for connecting the battery.
In some embodiments, the switch module includes a first switch tube. The first end of the first switch tube is connected with the first end of the output end of the energy storage module, the second end of the first switch tube is connected with the first end of the input end of the energy storage follow current module, and the control end of the first switch tube is connected with the output end of the control module.
In some embodiments, the energy storage module comprises a second capacitor. The first end of the second capacitor is connected with the anode of the solar charging panel and the first end of the switch module respectively, and the second end of the second capacitor is connected with the cathode of the solar charging panel and the second end of the input end of the energy storage follow current module respectively.
In some embodiments, the switch module further comprises a second switch tube. The second end of the second switch tube is connected with the second end of the first switch tube, the first end of the second switch tube is connected with the first end of the input end of the energy storage follow current module, and the control end of the second switch tube is connected with the control end of the first switch tube.
In some embodiments, the solar-based adjustable charger circuit further comprises an isolated drive optocoupler. The first end of the isolation driving optocoupler is connected with the output end of the control module, and the isolation driving optocoupler is connected with the control end of the first switch tube.
In some embodiments, the freewheel unit comprises a first diode and a second diode. The cathode of the first diode is connected with the cathode of the second diode, the second end of the switch module and the first end of the first inductor respectively, and the anode of the first diode is connected with the anode of the second diode and the second end of the first capacitor respectively.
In some embodiments, the solar-based adjustable charger circuit further comprises a third capacitor, a first resistor, a fourth capacitor, and a fifth capacitor.
The first end of the third capacitor is respectively connected with the first end of the output end of the energy storage module and the first end of the switch module, and the second end of the third capacitor is respectively connected with the second end of the output end of the energy storage module, the first end of the follow current unit, the second end of the fourth capacitor and the second end of the fifth capacitor; the first end of the first resistor is connected with the first end of the first inductor and the first end of the freewheeling unit respectively, the second end of the first resistor is connected with the first end of the fourth capacitor, and the first end of the fifth capacitor is connected with the first end of the first capacitor and the second end of the first inductor respectively and is used for connecting the anode of the battery.
The present application further provides a charger comprising the adjustable solar-based charger circuit and the battery specification selection module in any of the above embodiments. The battery specification selection module is connected with the control module, and the control module is further used for adjusting the working state of the switch module according to the input signal of the battery specification selection module.
In some embodiments, the battery gauge selection module comprises a touchable screen. A plurality of battery specification selection items are displayed in the touchable screen, and the touchable screen can input corresponding input signals to the control module according to selection operation of a user.
The beneficial effects of the embodiment of the application are that: being different from the prior art, the application provides an adjustable charger circuit and charger based on solar energy, wherein, adjustable charger circuit based on solar energy includes solar charging panel, energy storage module, switch module, energy storage afterflow module, detection module and control module. The solar charging panel is used for converting solar energy into electric energy, and the energy storage module is used for storing the electric energy converted by the solar charging panel; the detection module is used for detecting the output electrical parameter of the energy storage follow current module; the control module is used for controlling the working state of the switch module according to the electrical parameter signal received by the detection module and a preset electrical parameter value so as to adjust an output electrical parameter value of the energy storage follow current module. The output of the energy storage follow current module can be adjusted as required by controlling the working state of the switch module, so that the adjustable charger circuit based on solar energy can adapt to batteries of various specifications, the application range is wide, and users can charge the batteries of different specifications conveniently.
Drawings
Fig. 1 is a schematic structural diagram of a solar-based adjustable charger circuit according to an embodiment of the present disclosure;
fig. 2 is a schematic circuit diagram of a solar-based adjustable charger circuit according to an embodiment of the present disclosure;
fig. 3 is a schematic circuit diagram of a solar-based adjustable charger circuit according to another embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a charger according to an embodiment of the present application.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
In order to facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific embodiments. 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 this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It should be noted that, if not conflicted, the various features of the embodiments of the present application may be combined with each other within the scope of protection of the present application. In addition, although the functional blocks are divided in the device diagram, in some cases, the blocks may be divided differently from those in the device. Further, the words "first", "second", and the like, as used herein do not limit the data, the execution order, and the like, but merely distinguish the same items or similar items having substantially the same functions and actions.
Referring to fig. 1, an adjustable charger circuit 100 based on solar energy includes a solar charging panel 10, an energy storage module 20, a switch module 30, an energy storage freewheeling module 40, a detection module 50, and a control module 60.
The solar charging panel 10 is connected to the input end of the energy storage module 20, the output end of the energy storage module 20 is connected to the first end of the switch module 30, the second end of the switch module 30 is connected to the input end of the energy storage follow current module 40, the output end of the energy storage follow current module 40 is used for connecting a battery, the input end of the detection module 50 is connected to the output end of the energy storage follow current module 40, and the control module 60 is connected to the control end of the switch module 30 and the output end of the detection module 50 respectively.
The solar charging panel 10 is used for converting solar energy into electric energy, and the energy storage module 20 is used for storing the electric energy converted by the solar charging panel 10; the detection module 50 is used for detecting an output electrical parameter of the energy storage freewheeling module 40; the control module 50 is configured to control an operating state of the switching module 30 according to the electrical parameter signal received from the detection module 50 and a preset electrical parameter value to adjust an output electrical parameter value of the energy storage freewheeling module 40. Wherein the electrical parameters include current and voltage.
The working principle of the adjustable solar-based charger circuit shown in fig. 1 is as follows:
when the sunlight is sufficient, the solar charging panel 10 converts the solar energy into electric energy and stores the electric energy in the storage module 20, and when the charging requirement exists, the storage module 20 discharges to a subsequent circuit to charge the battery, thereby realizing dynamic storage and discharge operations; and when the sunshine is insufficient, such as cloudy days or rainy days, only the discharging operation of the energy storage module 20 is executed. In the present embodiment, the core modules for implementing the charge adjustable function are mainly the switch module 30, the energy storage freewheeling module 40, the detection module 50 and the control module 60. The switch module 30 establishes connection between the energy storage module 20 and the energy storage follow current module 40, and the on-off state of the switch module 30 determines the input and output electrical parameter values of the energy storage follow current module 40, that is, the combination of the switch module 30 and the energy storage follow current module 40 forms a structural basis of a charging adjustable circuit; the detection module 50 detects the output electrical parameter of the energy storage freewheeling module 40 in real time, and transmits an electrical parameter signal to the control module 60, the control module 60 stores a preset target electrical parameter value (such as a rated voltage, a rated current, a rated power, an error allowable threshold value, and the like of a battery to be charged), and obtains a corresponding calculation result by comparing the preset target electrical parameter value with the electrical parameter value received from the detection module 50 after the electrical parameter signal is processed, and controls the operating state (on/off) of the switch module 30 according to the calculation result so as to adjust the input and output electrical parameter values of the energy storage freewheeling module 40 to meet the actual charging requirement.
It should be noted that the solar charging panel 10 in this embodiment can be selected as a solar charging panel with various powers, and only the subsequent circuit design needs to be matched with the power of the selected solar charging panel. The energy storage module 20 may be a large-capacity capacitor or various energy storage devices such as storage batteries, the switch module 30 may be a mechanical switch, a triode, a fet, a relay, or a switch network or a switch integrated device formed by switch elements, the energy storage freewheeling module 40 may select a circuit structure or a device having energy storage and freewheeling functions formed by an inductor, a capacitor, and a diode, wherein, various chopper circuits (such as a buck converter, a boost converter, etc.) including the switch module 30 and the energy storage freewheeling module 40 may also be selected, the detection module 50 may be a detection network formed by separate detection devices such as voltage detection, current detection, power detection, etc., or an integrated device integrating various electrical parameter detection functions, and the control module 60 may be various microcontrollers (such as a single chip microcomputer), a PLC, or other control devices.
The adjustable solar-based charger circuit 100 provided by the present application comprises a solar charging panel 10, an energy storage module 20, a switching module 30, an energy storage freewheeling module 40, a detection module 50 and a control module 60. The solar charging panel 10 is used for converting solar energy into electric energy, and the energy storage module 20 is used for storing the electric energy converted by the solar charging panel; the detection module 50 is used for detecting an output electrical parameter of the energy storage freewheeling module 40; the control module 60 is configured to control the operating state of the switching module 30 according to the electrical parameter signal received from the detection module 50 and a preset electrical parameter value to adjust the output electrical parameter value of the energy storage freewheeling module 40. The output of the energy storage freewheeling module 40 can be adjusted as required by controlling the operating state of the switch module 30, so that the adjustable charger circuit 100 based on solar energy can adapt to batteries of various specifications, has a wide application range, and is convenient for users to charge batteries of different specifications.
In some embodiments, referring to fig. 2, fig. 2 shows a circuit structure of a solar-based adjustable charger circuit. In the embodiment shown in fig. 2, the energy storage freewheeling module 40 comprises a first inductor L1, a first capacitor C1 and a freewheeling unit 401.
A first end of the follow current unit 401 is connected to the second end of the switch module 30 and the first end of the first inductor L1, a second end of the first inductor L1 is connected to the first end of the first capacitor C1 and the positive electrode for connecting the battery, and a second end of the first capacitor C1 is connected to the second end of the follow current unit 401 and the negative electrode for connecting the battery.
When the switch module 30 is turned on, the energy storage module 20 simultaneously supplies power to the first inductor L1, the first capacitor C1 and the battery, the first inductor L1 also stores part of electric energy at this time, when the switch module 30 is turned off, the inductor energy cannot change suddenly due to the characteristics of the inductor, the first capacitor C1 supplies power to the battery at the moment when the switch module 30 is turned off, when the back electromotive force of the first inductor L1 starts to be released, the follow current unit 401 forms a power-on loop, the first inductor L1 supplies power to the battery and charges the first capacitor C1 until the back electromotive force of the first inductor L1 drops to 0, and the switch module 30 continues to be turned on again, and the steps are repeated in this way until the charging is completed.
In some embodiments, referring to fig. 2 again, the switch module 30 includes a first switch tube Q1. A first end of the first switching tube Q1 is connected to a first end of the output end of the energy storage module 20, a second end of the first switching tube Q1 is connected to a first end of the input end of the energy storage freewheeling module 40, and a control end of the first switching tube Q1 is connected to an output end of the control module 60.
In this embodiment, the model of the first switch Q1 is selected as an NMOS transistor, the first end of the first switch Q1 corresponds to the drain of the NMOS transistor, the second end of the first switch Q1 corresponds to the source of the NMOS transistor, and the control end of the first switch Q1 corresponds to the gate of the NMOS transistor. In other embodiments, the first switching tube Q1 may also be other switching devices (such as a triode, a field effect transistor, etc.) meeting design requirements, which are not limited herein.
In this embodiment, the first switch Q1 (NMOS transistor) is controlled by the control signal output by the control module 60, when the control module 60 outputs a high level to the gate of the first switch Q1, the first switch Q1 is turned on (i.e., the switch module 30 is turned on), and when the control module 60 outputs a low level to the gate of the first switch Q1, the first switch Q1 is turned off (i.e., the switch module 30 is turned off).
In some embodiments, referring to fig. 2 again, the energy storage module 20 includes a second capacitor C2. A first end of the second capacitor C2 is connected to the positive electrode of the solar charging panel 10 and the first end of the switch module 20, and a second end of the second capacitor C2 is connected to the negative electrode of the solar charging panel 10 and the second end of the input end of the energy storage freewheeling module 40. In other embodiments, the energy storage module 20 may also be various types of energy storage devices such as energy storage batteries.
In some embodiments, referring again to fig. 2, the solar-based adjustable charger circuit 100 further includes an isolated drive optocoupler 70 (i.e., U2). The first end of the isolation driving optocoupler 70 is connected with the output end of the control module 60, and the output end of the isolation driving optocoupler 70 is connected with the control end of the first switch tube Q1.
Specifically, when the control module 60 is a controller with small power (such as microcontroller like a single chip microcomputer, MCU), because its output power is small, the driving capability is weak, in order to ensure the normal operation of the switch tube, a driving unit needs to be added to enhance the driving capability, in addition, when the supply voltage connected to the switch tube is high, electrical isolation needs to be performed to prevent the control module 60 from being burnt or interfered, therefore, in this embodiment, the isolation driving optocoupler 70 is added to realize the functions of electrical isolation and driving.
In some embodiments, referring to fig. 2 again, the freewheel unit 401 includes a first diode D1 and a second diode D2. The cathode of the first diode D1 is connected to the cathode of the second diode D2, the second end of the switch module 30, and the first end of the first inductor L1, respectively, and the anode of the first diode D1 is connected to the anode of the second diode D2 and the second end of the first capacitor C1, respectively.
In this embodiment, the freewheeling unit 401 formed by connecting two diodes in parallel is used to realize the freewheeling function, mainly to improve the compression resistance of the freewheeling unit 401, in other embodiments, a single diode with stronger compression resistance may be used to freewheel, or a plurality of diode networks with weaker compression resistance and connected in parallel may be used to freewheel, and only the actual design requirements need to be met.
In the embodiment shown in fig. 2, the control module 60 selects a microcontroller (i.e., MCU), and the detection module 50 includes a current detection unit and a voltage detection unit, wherein the current detection unit includes a hall sensor U1 and a peripheral circuit composed of capacitors CI1, CI2, CI3, and a resistor RI1, and the voltage detection unit includes a voltage division circuit composed of resistors RU1 and RU 2.
The operation principle of the adjustable solar-based charger circuit shown in fig. 2 is as follows:
when the sunlight is sufficient, the solar charging panel 10 converts the solar energy into electric energy and stores the electric energy in the second capacitor C2, and when a charging demand exists, the second capacitor C2 discharges to a subsequent circuit to charge the battery, so that dynamic storing and discharging operations are realized; and when the sunshine is insufficient, such as cloudy day or rainy day, only the discharging operation of the second capacitor C2 is executed. When a charging instruction is received (for example, the MCU detects that the battery is connected to the charger), the MCU outputs a control signal (in this embodiment, a PWM signal, and in other embodiments, a control signal in other forms, such as a FWM signal) to the isolation driving optocoupler U2 according to a preset target electrical parameter value (such as a rated voltage, a rated current, a rated power, and the like of the battery); the isolation driving optocoupler U2 generates a corresponding driving signal to control the on and off of the first switch tube Q1, wherein when the first switch tube Q1 is switched on, the second capacitor C2 simultaneously supplies power to the first inductor L1, the first capacitor C1 and the battery, at the moment, the first diode D1 and the second diode D2 are reversely cut off, when the switch tube Q1 is cut off, the first inductor L1 generates reverse electromotive force, but the reverse electromotive force is not generated at the moment when the first switch tube Q1 is cut off, at the moment, the first capacitor C1 supplies power to the battery, when the reverse electromotive force is generated and works, the first diode D1 and the second diode D2 are switched on, the first inductor L1 supplies power to the battery and charges the first capacitor C1 until the reverse electromotive force of the first inductor L1 is reduced to 0, at the moment, the first switch tube Q1 is switched on again, and the cycle is repeated until the battery is charged; in the charging process, a current detection unit (a hall sensor U1 and a peripheral circuit thereof) and a voltage detection unit (a voltage division circuit composed of RU1 and R2) detect the current and the voltage at two ends of a first capacitor C1 (namely, the output end of the energy storage freewheeling module 40) in real time, generate a current signal iset and a voltage signal Usent and output the current signal iset and the voltage signal to an MCU, the MCU processes (a/D conversion, unit conversion, etc.) the received current signal and voltage signal, compares the detected values of the current and voltage obtained after the processing with preset target current values and voltage values (the current values and the voltage values can be set by a user according to the battery specification), and finely adjusts the working state of the first switching tube Q1 according to the comparison result so that the detected values are equal to the target values or within an allowable error range, thereby realizing safe and accurate charging of the battery.
In some embodiments, the switch module 30 further includes a second switch tube Q2. The second end of the second switch tube Q2 is connected to the second end of the first switch tube Q1, the first end of the second switch tube Q2 is connected to the first end of the input end of the energy storage freewheeling module 40, and the control end of the second switch tube Q2 is connected to the control end of the first switch tube Q1.
In this embodiment, the type of the second switch Q2 is also selected as an NMOS transistor, a first end of the second switch Q2 corresponds to a drain of the NMOS transistor, a second end of the second switch Q2 corresponds to a source of the NMOS transistor, and a control end of the second switch Q2 corresponds to a gate of the NMOS transistor. In other embodiments, the second switching tube Q2 may also be other switching devices (such as a triode, a field effect transistor, etc.) meeting design requirements, which are not limited herein. It should be noted that the control principle of the second switching tube Q2 is the same as the control principle of the first switching tube Q1, and please refer to the related description of the control principle of the first switching tube Q1 in the foregoing embodiment, which is not described herein again.
The second switch Q2 in the embodiment of the present application is used to prevent the battery current from flowing back to the solar charging panel 10 when the adjustable solar charger circuit 100 is not in operation, which may result in a battery power loss. The working principle is that the reverse PN junction (the current direction from the battery to the solar charging panel) exists in the second switching tube Q2, so that the current can be prevented from flowing backwards, and therefore, in other embodiments, the second switching tube Q2 can also be replaced by a diode, but compared with the scheme of a diode, the second hanging tube Q2 adopted in the embodiment has the advantage of lower power consumption and is more suitable for the working environment with larger current amount.
In some embodiments, referring to fig. 3 again, the adjustable solar charger circuit 100 further includes a third capacitor C3, a first resistor R1, a fourth capacitor C4, and a fifth capacitor C5.
A first end of the third capacitor C3 is connected to the first end of the output end of the energy storage module 20 and the first end of the switch module 30, respectively, and a second end of the third capacitor C3 is connected to the second end of the output end of the energy storage module 20, the first end of the freewheeling unit 401, the second end of the fourth capacitor C4 and the second end of the fifth capacitor C5, respectively; a first end of the first resistor R1 is connected to a first end of the first inductor L1 and a first end of the freewheeling unit 401, a second end of the first resistor R2 is connected to a first end of the fourth capacitor C4, and a first end of the fifth capacitor C5 is connected to a first end of the first capacitor C1 and a second end of the first inductor L1, respectively, and is used for connecting an anode of the battery.
In this embodiment, the third capacitor C3 is a filter capacitor, and is configured to filter the electrical signal output by the energy storage module 20; the first resistor and the fourth capacitor form a low-pass filter for filtering the electrical signal output by the switch module 30; the fifth capacitor C5 is also a filter capacitor, and is used for filtering the electric signal output by the first capacitor C1.
It should be noted that the working principle of the adjustable charger circuit 100 based on solar energy in the embodiment shown in fig. 3 is similar to the working principle of the adjustable charger circuit 100 based on solar energy in the embodiment shown in fig. 2, and please refer to the description of the working principle part of the adjustable charger circuit 100 based on solar energy in the embodiment shown in fig. 2, which is not repeated herein.
Referring to fig. 4, the present application further provides a charger, wherein the charger 1000 includes the adjustable solar-based charger circuit 100 and the battery specification selection module 200 provided in any of the above embodiments.
The battery specification selection module 200 is connected to the control module 60 in the solar-based adjustable charger circuit 100, and the control module 60 is further configured to adjust the operating state of the switch module 30 in the solar-based adjustable charger circuit 100 according to the input signal of the battery specification selection module.
In some embodiments, the battery gauge selection module 200 includes a touchable screen. A plurality of battery size options are displayed on the touchable screen, and the touchable screen can input corresponding input signals to the control module 60 in the solar-based adjustable charger circuit 100 according to selection operation of a user.
It should be noted that the above-described embodiments are merely illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An adjustable solar-based charger circuit for charging a battery, comprising: the solar energy charging device comprises a solar charging panel, an energy storage module, a switch module, an energy storage follow current module, a detection module and a control module;
the solar charging panel is connected with the input end of the energy storage module, the output end of the energy storage module is connected with the first end of the switch module, the second end of the switch module is connected with the input end of the energy storage follow current module, the output end of the energy storage follow current module is used for connecting a battery, the input end of the detection module is connected with the output end of the energy storage follow current module, and the control module is respectively connected with the control end of the switch module and the output end of the detection module;
the solar charging panel is used for converting solar energy into electric energy, and the energy storage module is used for storing the electric energy converted by the solar charging panel; the detection module is used for detecting the output electric parameter of the energy storage follow current module; the control module is used for controlling the working state of the switch module according to the electrical parameter signal received by the detection module and a preset electrical parameter value so as to adjust an output electrical parameter value of the energy storage follow current module;
wherein the electrical parameters include current and voltage.
2. The adjustable solar-based charger circuit of claim 1, wherein the energy storage freewheeling module comprises a first inductor, a first capacitor and a freewheeling unit;
the first end of the follow current unit is respectively connected with the second end of the switch module and the first end of the first inductor, the second end of the first inductor is connected with the first end of the first capacitor and the anode of the battery, and the second end of the first capacitor is connected with the second end of the follow current unit and the cathode of the battery.
3. The solar-based adjustable charger circuit of claim 1, wherein the switching module comprises a first switching tube;
the first end of the first switch tube is connected with the first end of the output end of the energy storage module, the second end of the first switch tube is connected with the first end of the input end of the energy storage follow current module, and the control end of the first switch tube is connected with the output end of the control module.
4. The solar-based adjustable charger circuit of claim 1, wherein the energy storage module comprises a second capacitor;
the first end of the second capacitor is connected with the anode of the solar charging panel and the first end of the switch module respectively, and the second end of the second capacitor is connected with the cathode of the solar charging panel and the second end of the input end of the energy storage follow current module respectively.
5. The solar-based adjustable charger circuit of claim 3, wherein the switching module further comprises a second switching tube;
the second end of the second switch tube is connected with the second end of the first switch tube, the first end of the second switch tube is connected with the first end of the input end of the energy storage follow current module, and the control end of the second switch tube is connected with the control end of the first switch tube.
6. The solar-based adjustable charger circuit of claim 3, further comprising an isolated drive optocoupler;
the first end of the isolation driving optocoupler is connected with the output end of the control module, and the output end of the isolation driving optocoupler is connected with the control end of the first switch tube.
7. The solar-based adjustable charger circuit of claim 2, wherein the freewheeling unit includes a first diode and a second diode;
the cathode of the first diode is connected with the cathode of the second diode, the second end of the switch module and the first end of the first inductor respectively, and the anode of the first diode is connected with the anode of the second diode and the second end of the first capacitor respectively.
8. The solar-based adjustable charger circuit of claim 2, further comprising a third capacitor, a first resistor, a fourth capacitor, and a fifth capacitor;
the first end of the third capacitor is respectively connected with the first end of the output end of the energy storage module and the first end of the switch module, and the second end of the third capacitor is respectively connected with the second end of the output end of the energy storage module, the first end of the follow current unit, the second end of the fourth capacitor and the second end of the fifth capacitor;
the first end of the first resistor is connected with the first end of the first inductor and the first end of the follow current unit respectively, the second end of the first resistor is connected with the first end of the fourth capacitor, and the first end of the fifth capacitor is connected with the first end of the first capacitor and the second end of the first inductor respectively and is used for connecting the anode of the battery.
9. A charger comprising the solar-based adjustable charger circuit of any one of claims 1-8 and a battery gauge selection module;
the battery specification selection module is connected with the control module, and the control module is further used for adjusting the working state of the switch module according to the input signal of the battery specification selection module.
10. The charger of claim 9, wherein the battery gauge selection module comprises a touchable screen;
a plurality of battery specification selection items are displayed in the touchable screen, and the touchable screen can input corresponding input signals to the control module according to selection operation of a user.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222080295.0U CN218482697U (en) | 2022-08-05 | 2022-08-05 | Adjustable charger circuit and charger based on solar energy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222080295.0U CN218482697U (en) | 2022-08-05 | 2022-08-05 | Adjustable charger circuit and charger based on solar energy |
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| CN218482697U true CN218482697U (en) | 2023-02-14 |
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