CN113937847A - Charger with software upgrading function and charger - Google Patents
Charger with software upgrading function and charger Download PDFInfo
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- CN113937847A CN113937847A CN202111101851.1A CN202111101851A CN113937847A CN 113937847 A CN113937847 A CN 113937847A CN 202111101851 A CN202111101851 A CN 202111101851A CN 113937847 A CN113937847 A CN 113937847A
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- 239000003990 capacitor Substances 0.000 claims description 38
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 238000005070 sampling Methods 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 230000006870 function Effects 0.000 description 32
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a charger with a software upgrading function and a charger. The input end of a first auxiliary power supply circuit in the charger is connected with the output interface of the charger, the output end of the first auxiliary power supply circuit is respectively connected with a main control circuit and a communication module, and the main control circuit is connected with the output end of the communication module; the first auxiliary power supply circuit is used for connecting a battery through a charger output interface, and converting the battery power to supply power to the main control circuit and the communication module; the input end of the communication module is used for receiving the upgrading data and transmitting the upgrading data to the main control circuit, and the main control circuit executes the upgrading data to complete software upgrading. The battery is used for reversely supplying power to the charger, software upgrading can be carried out without plugging the charger to a power supply, and the charger is ensured to finish software upgrading in time so as to adapt to more application scenes.
Description
Technical Field
The invention relates to the field of chargers, in particular to a charger with a software upgrading function and a charger with the software upgrading function.
Background
With the rapid development of the battery industry, charger products are more and more popular. In order to match the battery characteristic requirements and improve charging reliability, the charger is usually provided with built-in software. In the prior art, when software is upgraded for a charger, the charger is generally required to be electrified to work, namely, the charger is plugged in a power supply, and a communication line is required to be equipped for upgrading, so that upgrading is inconvenient. Such as when the charger is already installed in a vehicle system, or other inconvenient power-on application, requiring charger software updates may not be possible.
Disclosure of Invention
The present invention provides a charger with software upgrading function and a charger thereof, aiming at the above-mentioned defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the charger with the software upgrading function comprises a main control circuit, a charger input interface, a charger output interface and a power conversion circuit, wherein the main control circuit is connected with the power conversion circuit, the input end of the power conversion circuit is connected with the charger input interface, and the output end of the power conversion circuit is connected with the charger output interface; the charger input interface is used for connecting a power supply, the power conversion circuit is used for converting input voltage and current, the converted voltage and current are output to the charger output interface, and the charger output interface is used for connecting a battery to charge the battery; the charger further comprises a first auxiliary power supply circuit and a communication module;
the input end of the first auxiliary power supply circuit is connected with the output interface of the charger, the output end of the first auxiliary power supply circuit is respectively connected with the main control circuit and the communication module, and the main control circuit is connected with the output end of the communication module; the first auxiliary power supply circuit is used for connecting a battery through the charger output interface, converting the electric quantity of the battery and then supplying power to the main control circuit and the communication module; the input end of the communication module is used for receiving upgrade data and transmitting the upgrade data to the main control circuit, and the main control circuit executes the upgrade data to complete software upgrade.
Further, in the charger with the software upgrading function of the present invention, the charger further includes a second auxiliary power supply circuit, an input end of the second auxiliary power supply circuit is connected to the charger input interface, and an output end of the second auxiliary power supply circuit is respectively connected to the main control circuit and the communication module; the second auxiliary power supply circuit is used for converting input voltage and current and then supplying power to the main control circuit and the communication module.
Further, in the charger with the software upgrading function of the present invention, when the input interface of the charger is connected with voltage and current, the first auxiliary power supply circuit does not work, and the second auxiliary power supply circuit works;
when no voltage current is connected to the input interface of the charger, the first auxiliary power supply circuit works, and the second auxiliary power supply circuit does not work.
Further, in the charger with a software upgrading function of the present invention, the communication module is a USB module, and the USB module includes a USB interface.
Further, in the charger with a software upgrading function of the present invention, the communication module is a wireless communication module.
Further, in the charger with a software upgrading function of the present invention, the first auxiliary power supply circuit includes a control chip, a chip power supply circuit, a current sampling circuit, a switch control circuit, an output rectifying and filtering circuit, an absorption circuit, and a power transformer T2;
the control chip is respectively connected with the charger input interface, the chip power supply circuit, the current sampling circuit and the switch control circuit, the current sampling circuit is connected with the switch control circuit, and the switch control circuit is connected with a first primary output end of the power transformer T2; the chip power supply circuit is connected with a primary side second output end of the power transformer T2; the primary side input end of the power transformer T2 is connected with the charger input interface, and the primary side input end of the power transformer T2 is connected with the primary side first output end of the power transformer T2 through the absorption circuit; the output rectifying and filtering circuit is connected with the secondary side output end of the power transformer T2.
Further, in the charger with software upgrading function of the present invention, the chip power supply circuit includes a diode D27, a capacitor C70, an electrolytic capacitor EC9 and a resistor R105;
the anode of the diode D27 is connected to the second primary output end of the power transformer T2, and the cathode of the diode D27 is connected to the pin 4 of the control chip through the resistor R105; the cathode of the diode D27 is grounded through the capacitor C70, and the cathode of the diode D27 is grounded through the electrolytic capacitor EC 9.
Further, in the charger with software upgrading function of the present invention, the current sampling circuit includes a resistor R114 and a resistor R119;
the first end of the resistor R114 is connected to the pin 1 of the control chip, the second end of the resistor R114 is connected to the first end of the resistor R119, the first end of the resistor R119 is connected to the switch control circuit, and the second end of the resistor R119 is grounded.
Further, in the charger with software upgrading function of the present invention, the switch control circuit includes a MOS transistor Q7, a resistor R110, a resistor R111, a resistor R112, and a diode D28;
the negative electrode of the diode D28 is connected to the pin 8 of the control chip, the negative electrode of the diode D28 is connected to the gate of the MOS transistor Q7 through the resistor R111, the positive electrode of the diode D28 is connected to the gate of the MOS transistor Q7 through the resistor R110, the gate of the MOS transistor Q7 is connected to the source of the MOS transistor Q7 through the resistor R112, the source of the MOS transistor Q7 is connected to the first end of the resistor R119, and the drain of the MOS transistor Q7 is connected to the first primary output end of the power transformer T2.
Further, in the charger with software upgrading function of the present invention, the output rectifying and filtering circuit includes a diode D19, a resistor R87, a capacitor C59 and an electrolytic capacitor EC 7;
the anode of the diode D19 is connected to the first secondary output terminal of the power transformer T2, the anode of the diode D19 is connected to the first end of the capacitor C59 through the resistor R87, the second end of the capacitor C59 is connected to the cathode of the diode D19, and the cathode of the diode D19 is connected to the second secondary output terminal of the power transformer T2 through the electrolytic capacitor EC 7.
Further, in the charger with software upgrading function of the present invention, the absorption circuit includes a diode D25, a resistor R84, a resistor R90 and a capacitor C60;
the anode of the diode D25 is connected to the first primary output terminal of the power transformer T2, and the cathode of the diode D25 is connected to the primary input terminal of the power transformer T2 through the capacitor C60; the cathode of the diode D25 is connected to the first end of the resistor R84 through the resistor R90, and the second end of the resistor R84 is connected to the primary input end of the power transformer T2.
Further, in the charger with the software upgrading function of the present invention, the model of the control chip is LM 3481.
In addition, the invention also provides a charger, which comprises a first auxiliary power supply circuit;
the input end of the first auxiliary power supply circuit is connected with a charger output interface of a charger, and the charger output interface is used for connecting a battery; the first auxiliary power supply circuit is used for converting the battery power and then supplying power to the internal equipment of the charger.
The charger and the charger with the software upgrading function have the following beneficial effects: the battery is used for reversely supplying power to the charger, software upgrading can be carried out without plugging the charger to a power supply, and the charger is ensured to finish software upgrading in time so as to adapt to more application scenes.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic structural diagram of a charger with a software upgrading function according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a charger with a software upgrading function according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a first auxiliary power supply circuit according to an embodiment of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
In a preferred embodiment, referring to fig. 1, the charger with software upgrading function of this embodiment includes a main control circuit 10, a charger input interface 20, a charger output interface 30 and a power conversion circuit 40, the main control circuit 10 is connected to the power conversion circuit 40, an input end of the power conversion circuit 40 is connected to the charger input interface 20, and an output end of the power conversion circuit 40 is connected to the charger output interface 30. The charger input interface 20 is used for connecting a power supply, the power conversion circuit 40 is used for converting input voltage and current, the converted voltage and current are output to the charger output interface 30, and the charger output interface 30 is used for connecting a battery to charge the battery. The circuit structures of the main control circuit 10, the charger input interface 20, the charger output interface 30 and the power conversion circuit 40 may refer to the prior art, and are not described in detail in this embodiment.
Further, the charger of the present embodiment further includes a first auxiliary power supply circuit 50 and a communication module 60. The input end of the first auxiliary power supply circuit 50 is connected to the charger output interface 30, the output end of the first auxiliary power supply circuit 50 is respectively connected to the main control circuit 10 and the communication module 60, and the main control circuit 10 is connected to the output end of the communication module 60. The first auxiliary power supply circuit 50 is used for connecting a battery through the charger output interface 30, converting the battery power and then supplying power to the main control circuit 10 and the communication module 60. The input end of the communication module 60 is configured to receive the upgrade data and transmit the upgrade data to the main control circuit 10, and the main control circuit 10 executes the upgrade data to complete software upgrade.
The battery is used for reversely supplying power to the charger, software upgrading can be carried out without plugging the charger to a power supply, and the charger is ensured to finish software upgrading in time so as to adapt to more application scenes.
In some embodiments of the charger with the software upgrading function, referring to fig. 2, the charger of this embodiment further includes a second auxiliary power supply circuit 70, an input end of the second auxiliary power supply circuit 70 is connected to the charger input interface 20, and an output end of the second auxiliary power supply circuit 70 is respectively connected to the main control circuit 10 and the communication module 60. The second auxiliary power supply circuit 70 is configured to convert the input voltage and current and then supply power to the main control circuit 10 and the communication module 60. The input end of the communication module 60 is configured to receive the upgrade data and transmit the upgrade data to the main control circuit 10, and the main control circuit 10 executes the upgrade data to complete software upgrade. In the embodiment, the charger is supplied with power reversely through the battery, and is also supplied with power directly through the power supply, so that the charger has two power supply modes, and the charger is ensured to complete software upgrading in time so as to adapt to more application scenes.
In the charger with the software upgrading function according to some embodiments, it is monitored whether the voltage and current are connected to the charger input interface 20, if the voltage and current are connected to the charger input interface 20, the charger input interface 20 is connected to a power supply, the first auxiliary power supply circuit 50 does not operate, the second auxiliary power supply circuit 70 operates, and the second auxiliary power supply circuit 70 supplies power to the main control circuit 10 and the communication module 60. If the charger input interface 20 has no voltage current access, that is, the charger input interface 20 is not connected to the power supply, the first auxiliary power supply circuit 50 works, the second auxiliary power supply circuit 70 does not work, and the first auxiliary power supply circuit 50 supplies power to the main control circuit 10 and the communication module 60. In the embodiment, when the voltage and current are applied to the charger input interface 20, the second auxiliary power supply circuit 70 is preferentially used for supplying power, so that the battery does not need to discharge power, and the power of the battery is kept stable.
In the charger with software upgrade function of some embodiments, the communication module 60 is a USB module, and the USB module includes a USB interface for connecting an external storage device, such as a USB disk, having a USB interface matching the USB module. The external storage device stores upgrade data, the USB module establishes communication with the external storage device, reads the upgrade data stored in the external storage device, and transmits the upgrade data to the main control circuit 10, and the main control circuit 10 executes the upgrade data to complete software upgrade. According to the embodiment, the software of the charger can be upgraded only by the external storage device, and the operation is simple and the cost is low.
In the charger with the software upgrading function of some embodiments, the communication module 60 is a wireless communication module for establishing a communication connection with an external smart terminal, such as a smart phone, having a wireless communication module matching with the communication module 60. The external intelligent terminal stores upgrade data, the communication module 60 establishes wireless communication with the external intelligent terminal and then reads the upgrade data stored in the external intelligent terminal (or the external intelligent terminal sends the upgrade data to the communication module 60), and transmits the upgrade data to the main control circuit 10, and the main control circuit 10 executes the upgrade data to complete software upgrade. Alternatively, the wireless communication module can be a Bluetooth module, a wifi module, a 3G wireless communication module, a 4G wireless communication module, a 5G wireless communication module and the like. According to the embodiment, the upgrading data is transmitted in a wireless mode, so that the charger does not need to be provided with a hardware interface, and the attractiveness of the charger is improved.
In the charger with software upgrading function of some embodiments, referring to fig. 3, the first auxiliary power supply circuit 50 includes a control chip 501, a chip power supply circuit 502, a current sampling circuit 503, a switch control circuit 504, an output rectifying and filtering circuit 505, an absorption circuit 506 and a power transformer T2, the control chip 501 is connected to the charger input interface 20 (i.e. to the battery, BAT +), the chip power supply circuit 502, the current sampling circuit 503 and the switch control circuit 504, the current sampling circuit 503 is connected to the switch control circuit 504, and the switch control circuit 504 is connected to the first output end on the primary side of the power transformer T2. The chip supply circuit 502 is connected to the primary second output terminal of the power transformer T2. The primary input terminal of the power transformer T2 is connected to the charger input interface 20 (i.e., to the battery, BAT +), and the primary input terminal of the power transformer T2 is connected to the primary first output terminal of the power transformer T2 via the absorption circuit 506. The output rectifying and filtering circuit 505 is connected to the secondary output end of the power transformer T2, and the output end of the output rectifying and filtering circuit 505 is connected to the main control circuit 10 and the communication module 60 respectively to supply power to the main control circuit 10 and the communication module 60. The primary port 1 of the power transformer T2 is a primary input port, the primary port 3 of the power transformer T2 is a primary first output port, the primary port of the power transformer T2 is grounded, and the primary port 5 of the power transformer T2 is a primary second output port. The secondary output end comprises a secondary first output end and a secondary second output end, a secondary port 10 of the power transformer T2 is the secondary first output end, and a secondary port 9 of the power transformer T2 is the secondary second output end.
In the charger with the software upgrading function of some embodiments, the chip power supply circuit 502 includes a diode D27, a capacitor C70, an electrolytic capacitor EC9, and a resistor R105, an anode of the diode D27 is connected to the second primary output terminal of the power transformer T2, and a cathode of the diode D27 is connected to the pin 4 of the control chip 501 through the resistor R105. The cathode of the diode D27 is grounded through the capacitor C70, and the cathode of the diode D27 is grounded through the electrolytic capacitor EC 9.
In the charger with the software upgrading function according to some embodiments, the current sampling circuit 503 includes a resistor R114 and a resistor R119, a first terminal of the resistor R114 is connected to the pin 1 of the control chip 501, a second terminal of the resistor R114 is connected to a first terminal of the resistor R119, a first terminal of the resistor R119 is connected to the switch control circuit 504, and a second terminal of the resistor R119 is grounded.
In the charger with the software upgrading function according to some embodiments, the switch control circuit 504 includes a MOS transistor Q7, a resistor R110, a resistor R111, a resistor R112, and a diode D28, a cathode of the diode D28 is connected to the pin 8 of the control chip 501, a cathode of the diode D28 is connected to a gate of the MOS transistor Q7 through the resistor R111, an anode of the diode D28 is connected to a gate of the MOS transistor Q7 through the resistor R110, a gate of the MOS transistor Q7 is connected to a source of the MOS transistor Q7 through the resistor R112, a source of the MOS transistor Q7 is connected to a first end of the resistor R119, and a drain of the MOS transistor Q7 is connected to the first output terminal on the primary side of the power transformer T2.
In the charger with the software upgrading function of some embodiments, the output rectifying and filtering circuit 505 includes a diode D19, a resistor R87, a capacitor C59 and an electrolytic capacitor EC7, an anode of the diode D19 is connected to the first output end of the secondary side of the power transformer T2, an anode of the diode D19 is connected to the first end of the capacitor C59 through the resistor R87, a second end of the capacitor C59 is connected to a cathode of the diode D19, and a cathode of the diode D19 is connected to the second output end of the secondary side of the power transformer T2 through the electrolytic capacitor EC 7.
In some embodiments of the charger with software upgrading function, the absorption circuit 506 includes a diode D25, a resistor R84, a resistor R90, and a capacitor C60, an anode of the diode D25 is connected to the first output terminal on the primary side of the power transformer T2, and a cathode of the diode D25 is connected to the input terminal on the primary side of the power transformer T2 through the capacitor C60. The cathode of the diode D25 is connected to the first terminal of the resistor R84 through the resistor R90, and the second terminal of the resistor R84 is connected to the primary input terminal of the power transformer T2. The primary input of the power transformer T2 is connected to ground through a capacitor C62.
In the charger with the software upgrading function of some embodiments, the model of the control chip 501 is LM 3481.
In the charger with the software upgrade function of some embodiments, pin 1 of the control chip 501 is grounded through a capacitor C76. Pin 2 of the control chip 501 is connected to the charger input interface 20 (i.e. to the battery, BAT + in the figure) through a resistor R97, and pin 2 of the control chip 501 is grounded through a resistor R102. Pin 3 of the control chip 501 is connected to a first terminal of a capacitor C73 through a resistor R103, and a second terminal of the capacitor C73 is grounded. Pin 4 of the control chip 501 is connected to ground through a resistor R106. Pin 5 of the control chip 501 is connected to ground. Pin 6 of the control chip 501 is connected to ground through resistor R88. Pin 7 of the control chip 501 is connected to ground. Pin 9 of the control chip 501 is connected to ground through capacitor C77. The pin 10 of the control chip 501 is connected to the charger input interface 20 (i.e. to the battery, BAT + in the figure).
In a preferred embodiment, the charger of the present embodiment includes a first auxiliary power supply circuit 50, an input terminal of the first auxiliary power supply circuit 50 is connected to the charger output interface 30 of the charger, and the charger output interface 30 is used for connecting a battery. The first auxiliary power supply circuit 50 is configured to convert the battery power into power for the internal device of the charger, where the power for the internal device of the charger includes part of the internal device or all of the internal device. The circuit structure of the first auxiliary power supply circuit 50 can refer to the above embodiments, and is not described herein again. The charger is reversely powered by the battery, so that the problem that no power supply supplies electric energy to the charger is solved, and the charger can complete required operation by using the electric energy of the battery.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (13)
1. A charger with a software upgrading function comprises a main control circuit (10), a charger input interface (20), a charger output interface (30) and a power conversion circuit (40), wherein the main control circuit (10) is connected with the power conversion circuit (40), the input end of the power conversion circuit (40) is connected with the charger input interface (20), and the output end of the power conversion circuit (40) is connected with the charger output interface (30); the charger input interface (20) is used for being connected with a power supply, the power conversion circuit (40) is used for converting input voltage and current, the converted voltage and current are output to the charger output interface (30), and the charger output interface (30) is used for being connected with a battery to charge the battery; characterized in that the charger further comprises a first auxiliary power supply circuit (50) and a communication module (60);
the input end of the first auxiliary power supply circuit (50) is connected with the charger output interface (30), the output end of the first auxiliary power supply circuit (50) is respectively connected with the main control circuit (10) and the communication module (60), and the main control circuit (10) is connected with the output end of the communication module (60); the first auxiliary power supply circuit (50) is used for connecting a battery through the charger output interface (30), and converting the electric quantity of the battery to supply power to the main control circuit (10) and the communication module (60); the input end of the communication module (60) is used for receiving upgrade data and transmitting the upgrade data to the main control circuit (10), and the main control circuit (10) executes the upgrade data to complete software upgrade.
2. The charger with software upgrading function according to claim 1, further comprising a second auxiliary power supply circuit (70), wherein an input end of the second auxiliary power supply circuit (70) is connected to the charger input interface (20), and an output end of the second auxiliary power supply circuit (70) is respectively connected to the main control circuit (10) and the communication module (60); the second auxiliary power supply circuit (70) is used for converting input voltage and current and then supplying power to the main control circuit (10) and the communication module (60).
3. The charger with software upgrading function according to claim 2, wherein when the charger input interface (20) is connected with voltage and current, the first auxiliary power supply circuit (50) does not work, and the second auxiliary power supply circuit (70) works;
when the charger input interface (20) is not connected with voltage current, the first auxiliary power supply circuit (50) works, and the second auxiliary power supply circuit (70) does not work.
4. The charger with software upgrading capability according to claim 1, wherein the communication module (60) is a USB module, the USB module including a USB interface.
5. The charger with software upgrading capability according to claim 1, characterized in that the communication module (60) is a wireless communication module.
6. The charger with software upgrading function according to claim 1, wherein the first auxiliary power supply circuit (50) comprises a control chip (501), a chip power supply circuit (502), a current sampling circuit (503), a switch control circuit (504), an output rectifying and filtering circuit (505), an absorption circuit (506) and a power transformer T2;
the control chip (501) is respectively connected with the charger input interface (20), the chip power supply circuit (502), the current sampling circuit (503) and the switch control circuit (504), the current sampling circuit (503) is connected with the switch control circuit (504), and the switch control circuit (504) is connected with a first primary output end of the power transformer T2; the chip power supply circuit (502) is connected with a primary side second output end of the power transformer T2; the primary side input end of the power transformer T2 is connected with the charger input interface (20), and the primary side input end of the power transformer T2 is connected with the primary side first output end of the power transformer T2 through the absorption circuit (506); the output rectifying and filtering circuit (505) is connected with the secondary side output end of the power transformer T2.
7. The charger with software upgrading function according to claim 6, wherein the chip power supply circuit (502) comprises a diode D27, a capacitor C70, an electrolytic capacitor EC9 and a resistor R105;
the anode of the diode D27 is connected with the second primary output end of the power transformer T2, and the cathode of the diode D27 is connected with a pin 4 of the control chip (501) through the resistor R105; the cathode of the diode D27 is grounded through the capacitor C70, and the cathode of the diode D27 is grounded through the electrolytic capacitor EC 9.
8. The charger with software upgrading function according to claim 6, wherein the current sampling circuit (503) comprises a resistor R114 and a resistor R119;
the first end of the resistor R114 is connected with a pin 1 of the control chip (501), the second end of the resistor R114 is connected with the first end of the resistor R119, the first end of the resistor R119 is connected with the switch control circuit (504), and the second end of the resistor R119 is grounded.
9. The charger with software upgrading function according to claim 8, wherein the switch control circuit (504) comprises a MOS transistor Q7, a resistor R110, a resistor R111, a resistor R112 and a diode D28;
the negative electrode of the diode D28 is connected to the pin 8 of the control chip (501), the negative electrode of the diode D28 is connected to the gate of the MOS transistor Q7 through the resistor R111, the positive electrode of the diode D28 is connected to the gate of the MOS transistor Q7 through the resistor R110, the gate of the MOS transistor Q7 is connected to the source of the MOS transistor Q7 through the resistor R112, the source of the MOS transistor Q7 is connected to the first end of the resistor R119, and the drain of the MOS transistor Q7 is connected to the first output end of the primary side of the power transformer T2.
10. The charger with software upgrading function according to claim 6, wherein the output rectifying and filtering circuit (505) comprises a diode D19, a resistor R87, a capacitor C59 and an electrolytic capacitor EC 7;
the anode of the diode D19 is connected to the first secondary output terminal of the power transformer T2, the anode of the diode D19 is connected to the first end of the capacitor C59 through the resistor R87, the second end of the capacitor C59 is connected to the cathode of the diode D19, and the cathode of the diode D19 is connected to the second secondary output terminal of the power transformer T2 through the electrolytic capacitor EC 7.
11. The charger with software upgrading capability according to claim 6, wherein the absorption circuit (506) comprises a diode D25, a resistor R84, a resistor R90 and a capacitor C60;
the anode of the diode D25 is connected to the first primary output terminal of the power transformer T2, and the cathode of the diode D25 is connected to the primary input terminal of the power transformer T2 through the capacitor C60; the cathode of the diode D25 is connected to the first end of the resistor R84 through the resistor R90, and the second end of the resistor R84 is connected to the primary input end of the power transformer T2.
12. The charger with software upgrading function according to claim 6, wherein the model of the control chip (501) is LM 3481.
13. A charger, characterized by comprising a first auxiliary power supply circuit (50);
the input end of the first auxiliary power supply circuit (50) is connected with a charger output interface (30) of a charger, and the charger output interface (30) is used for connecting a battery; the first auxiliary power supply circuit (50) is used for converting the electric quantity of the battery and then supplying power to the internal equipment of the charger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111101851.1A CN113937847A (en) | 2021-09-18 | 2021-09-18 | Charger with software upgrading function and charger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111101851.1A CN113937847A (en) | 2021-09-18 | 2021-09-18 | Charger with software upgrading function and charger |
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| CN113937847A true CN113937847A (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111101851.1A Pending CN113937847A (en) | 2021-09-18 | 2021-09-18 | Charger with software upgrading function and charger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114554333A (en) * | 2022-02-22 | 2022-05-27 | 深圳市长丰影像器材有限公司 | Microphone connecting device and charging method |
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