CN107947301B - Scanning gun charging circuit - Google Patents
Scanning gun charging circuit Download PDFInfo
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- CN107947301B CN107947301B CN201711490402.4A CN201711490402A CN107947301B CN 107947301 B CN107947301 B CN 107947301B CN 201711490402 A CN201711490402 A CN 201711490402A CN 107947301 B CN107947301 B CN 107947301B
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- 239000003990 capacitor Substances 0.000 claims description 18
- 238000005070 sampling Methods 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 5
- 230000005674 electromagnetic induction Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 101000908580 Homo sapiens Spliceosome RNA helicase DDX39B Proteins 0.000 description 1
- 102100021298 b(0,+)-type amino acid transporter 1 Human genes 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H02J7/025—
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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
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
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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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
- H02J7/0049—Detection of fully charged condition
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a scanning gun charging circuit. The scanning gun charging circuit includes: a wireless transmit circuit, comprising: the wireless charging system comprises a first wireless charging module, a second wireless charging module and a third wireless charging module; the first wireless charging module is connected with the second wireless charging module and is used for outputting power to the second wireless charging module; the second wireless charging module is connected with the third wireless charging module and is used for outputting charging current; the third wireless charging module is used for carrying out state prompt on the charging state of the rechargeable battery; one end of the wireless receiving circuit is connected with the rechargeable battery and is used for receiving the energy sent by the wireless transmitting circuit and charging the rechargeable battery; and the first wired charging circuit is connected with the rechargeable battery and is used for charging the rechargeable battery. The invention realizes the free switching of the scanning gun in the wireless charging and wired charging modes, and further improves the use experience of users.
Description
Technical Field
The embodiment of the invention relates to a scanning gun charging technology, in particular to a scanning gun charging circuit.
Background
The bar code scanning gun is used as a high-tech product closely combined with optical, mechanical, electronic, software application and other technologies, and is a third-generation main computer input device behind a keyboard and a mouse. At present, the method is widely applied to occasions such as supermarkets, hospitals, banks and the like.
However, the charging modes of the conventional scanner gun can be divided into two types: wired charging and wireless charging. If wired charging is adopted, the data wire is required to be connected with a power terminal device such as an adapter or a computer for charging; if wireless charging is adopted, bluetooth or wireless induction charging can be adopted, wherein the wireless induction charging needs an induction coil to charge a rechargeable battery.
However, in the prior art, if only wired charging is adopted, the scanning gun needs to be charged at fixed points, and the scanning gun is inconvenient to move and use, and meanwhile, if only wireless charging is adopted, the charging time is overlong due to low efficiency of wireless charging, so that the use experience of a user on the scanning gun is reduced.
Disclosure of Invention
The invention provides a scanning gun charging circuit to realize free switching between wireless charging and wired charging of a scanning gun and further improve user experience.
In a first aspect, an embodiment of the present invention provides a scan gun charging circuit, including: the wireless transmitting circuit, the wireless receiving circuit, the rechargeable battery and the first wired charging circuit;
the wireless transmitting circuit includes: the wireless charging system comprises a first wireless charging module, a second wireless charging module and a third wireless charging module;
The first wireless charging module is connected with the second wireless charging module and is used for outputting power to the second wireless charging module;
The second wireless charging module is connected with the third wireless charging module and is used for outputting charging current;
The third wireless charging module is used for carrying out state prompt on the charging state of the rechargeable battery;
One end of the wireless receiving circuit is connected with the rechargeable battery and is used for receiving the energy sent by the wireless transmitting circuit and charging the rechargeable battery;
The first wired charging circuit is connected with the rechargeable battery and used for charging the rechargeable battery.
According to the invention, the wireless transmitting coil in the wireless transmitting circuit and the wireless receiving coil of the wireless receiving circuit are used for wirelessly charging the rechargeable battery connected with the wireless receiving circuit, and the first wired charging circuit is used for carrying out wired charging on the rechargeable battery, so that the scanning gun can be freely switched between the wireless charging mode and the wired charging mode, and the use experience of a user is further improved.
Drawings
Fig. 1 is a block diagram of a scan gun charging circuit in an embodiment of the invention.
Fig. 2 is a block diagram of another scan gun charging circuit in an embodiment of the invention.
Fig. 3 is a circuit diagram of a wireless transmit circuit in an embodiment of the invention.
Fig. 4 is a circuit diagram of a first wired charging circuit in an embodiment of the present invention.
Fig. 5 is a circuit diagram of a first LED lamp branch in an embodiment of the invention.
Fig. 6 is a circuit diagram of a second LED lamp branch in an embodiment of the invention.
Fig. 7 is a circuit diagram of a wireless receiving circuit in an embodiment of the invention.
Fig. 8 is a block diagram of another scan gun charging circuit in an embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Fig. 1 is a block diagram of a charging circuit of a scanning gun according to an embodiment of the present invention, where the charging circuit of the scanning gun specifically includes: a wireless transmitting circuit 101, a wireless receiving circuit 102, a rechargeable battery 103, and a first wired charging circuit 104;
wherein the wireless transmitting circuit 101 includes: a first wireless charging module 1011, a second wireless charging module 1012, and a third wireless charging module 1013;
The first wireless charging module 1011 is connected to the second wireless charging module 1012 and is used for outputting power to the second wireless charging module 1012;
A second wireless charging module 1012 connected to the third wireless charging module 1013 for outputting a charging current;
A third wireless charging module 1013 configured to perform a state prompt for a charging state of the rechargeable battery 103;
A wireless receiving circuit 102, one end of which is connected with the rechargeable battery 103, for receiving the energy sent by the wireless transmitting circuit 101 and charging the rechargeable battery 103;
the first wired charging circuit 104 is connected to the rechargeable battery 103 and is configured to charge the rechargeable battery 103.
Further, the wireless transmitting circuit includes: and the fourth resistor is used for detecting the charging current of the second wireless charging module and determining the threshold value of the charging current. Wherein the charging current ranges from 320 mA to 800mA.
In this embodiment, the XKT-412 chip and the XKT-335 chip are used as the main control chips of the first wireless charging module and the second wireless charging module, respectively. The XKT-412 chip is responsible for processing a wireless power transmission function in the wireless transmitting circuit, adopts an electromagnetic energy conversion principle, is matched with the wireless receiving circuit to perform energy conversion and real-time monitoring of the wireless receiving circuit, is responsible for intelligent control of quick charge of the rechargeable battery, and is used for matching with the XKT-412 chip to develop a high-frequency high-power output integrated circuit, so that conversion efficiency is improved and output power is enhanced.
Specifically, the wireless charging method may be classified into electromagnetic induction charging, magnetic field resonance charging, and radio wave charging. The electromagnetic induction type charging is that alternating current with a certain frequency exists in the primary coil, and current is generated in the secondary coil through electromagnetic induction, so that energy is transmitted from the output end to the receiving end, and wireless charging is completed. In this embodiment, electromagnetic induction charging is adopted, that is, an alternating current of a certain frequency is input into a wireless transmitting coil (primary coil) of a wireless transmitting circuit, and a current is generated in a wireless receiving coil (secondary coil) of a wireless receiving circuit by electromagnetic induction, so that energy is transmitted from the wireless transmitting current to the wireless receiving circuit, and a connected rechargeable battery is charged by the wireless receiving circuit, so that wireless charging of the rechargeable battery in the scanning gun is realized.
In the process of wirelessly charging the rechargeable battery in the scanning gun, after a charging current threshold value is determined according to a fourth resistor in the wireless transmitting circuit, the charging currents output by the first wireless charging module and the second wireless charging module are sampled through the third wireless charging module and compared with the charging current threshold value, when the charging current sampling value is larger than the charging current threshold value, the rechargeable battery is in a charging state, and when the charging current sampling value is smaller than the charging current threshold value, the rechargeable battery is in a full state, and state prompt is carried out through corresponding LED lamps respectively to remind a user of the charging state of the scanning gun.
Meanwhile, a TP4056 chip is adopted as a main control chip of the first wired charging circuit to perform wired charging on the connected rechargeable battery, so that a user can rapidly charge the scanning gun through wired charging under the condition that the scanning gun is rapidly charged. The TP4056 chip is a complete single-lithium ion battery linear charger adopting constant current/constant voltage, and is suitable for USB power supply and adapter power supply.
According to the technical scheme, through the wireless transmitting coil in the wireless transmitting circuit and the wireless receiving coil of the wireless receiving circuit, the rechargeable battery connected with the wireless receiving circuit is charged in a wireless mode, and the rechargeable battery is charged in a wired mode through the first wired charging circuit, so that the scanning gun is switched freely in the wireless charging mode and the wired charging mode, and the use experience of a user is further improved.
On the basis of the above embodiment, as shown in fig. 2, a block diagram of another scan gun charging circuit according to an embodiment of the present invention is provided, where the scan gun charging circuit further includes: a first LED lamp branch 105 and a second LED lamp branch 106;
the first LED lamp branch 105 and the second LED lamp branch 106 are both connected to the first wired charging circuit 104, and are configured to perform status prompt on the charging state of the rechargeable battery 103.
It should be noted that, when the rechargeable battery 103 in the scanning gun is charged by adopting the wired charging manner, the charging state of the rechargeable battery 103 is prompted by the first LED lamp branch 105 and the second LED lamp branch 106, where the light emitting diodes in the first LED lamp branch 105 and the second LED lamp branch 106 emit different colors when being lighted, so as to distinguish that the rechargeable battery 103 is in different charging states, for example: is charging or is full.
Fig. 3 is a circuit diagram of a radio transmitting circuit provided in an embodiment of the present invention, and referring to fig. 3, the radio transmitting circuit 101 includes: the first wireless charging module 1011, the second wireless charging module 1012, and the third wireless charging module 1013.
Wherein, the first wireless charging module 1011 includes: the wireless charging system comprises a first wireless charging chip U1, a first capacitor C1, a second capacitor C2, a first resistor R1, a second resistor R2 and a third resistor R3, wherein the model number of the first wireless charging chip U1 is XKT-412; the first end of the first wireless charging chip U1 is connected with the first end of the second capacitor C2, the first end of the first resistor R1 and the first end of the second resistor R2; the second end of the first wireless charging chip U1 is connected with the second end of the second resistor R2; the third end of the first wireless charging chip U1 is connected with the second end of the second capacitor R2; the fourth end of the first wireless charging chip U1 is connected with the sixth end of the first wireless charging chip U1 and used for enhancing the power of the first wireless charging chip U1, and is connected with the second wireless charging module 1012 and used for outputting power; the fifth end of the first wireless charging chip U1 is grounded; the seventh end of the first wireless charging chip U1 is connected with the first end of the third resistor R3 and the second end of the second capacitor C2; the eighth terminal of the first wireless charging chip U1 inputs the power voltage.
A second wireless charging module 1012, comprising: the second wireless charging chip U2 with the model number XKT-335, the third capacitor C3 and the primary coil L1; the first end, the second end, the third end and the fourth end of the second wireless charging chip U2 are connected with the second end of the primary coil L1 and the first end of the third capacitor C3; the fifth end, the sixth end and the seventh end of the second wireless charging chip U2 are all connected with the first end of the fourth capacitor C4, the first end of the fourth resistor R4 and the first end of the fifth resistor R5; the eighth end of the second wireless charging chip U2 is connected with the sixth end of the first wireless charging chip U1 and is used for inputting power; the first end of the primary coil L1 is connected to the second end of the third capacitor C3, and a power supply voltage is input.
The third wireless charging module 1013 includes: the third wireless charging chip U3, the first triode Q1, the second triode Q2, the first light emitting diode LED1, the second light emitting diode LED2, the sixth resistor R6, the seventh resistor R7, the eighth resistor R8 and the ninth resistor R9 are of the model XKT-207; the first end of the third wireless charging chip U3 is connected with the base electrode of the first triode Q1 and the base electrode of the second triode Q2, and is used for comparing and analyzing the charging current and the threshold value of the charging current and outputting corresponding level information; the cathode of the first light emitting diode LED1 is connected with the emitter of the first triode Q1 and is used for carrying out corresponding state prompt according to the charging state of the rechargeable battery 103; the negative electrode of the second light emitting diode LED2 is connected to the collector electrode of the second triode Q2, and is used for performing a corresponding state prompt according to the charging state of the rechargeable battery 103; the positive electrode of the first light emitting diode LED1 and the positive electrode of the second light emitting diode LED2 are input with power supply voltages; the collector electrode of the first triode Q1 and the emitter electrode of the second triode Q2 are grounded; the second end, the fifth end and the seventh end of the third wireless charging chip U3 are connected to the second end of the fifth resistor R5, and are used for sampling the charging current of the second wireless charging module 1012; the third end of the third wireless charging chip U3 is connected with the first end of the sixth resistor R6 and the first end of the seventh resistor R7; the sixth end of the third wireless charging chip U3 is connected with the first end of the eighth resistor R8 and the first end of the ninth resistor R9; the fourth end of the third wireless charging chip U3 is grounded; the eighth terminal of the third wireless charging chip U3 inputs the power supply voltage.
It should be noted that, when the first wireless charging chip XKT-412 and the second wireless charging chip XKT-335 cooperate to input a certain alternating current to the primary coil L1, the current between the fourth resistor R4 is detected by a multimeter or an oscilloscope to determine the threshold value of the charging current, and the charging current in the wireless transmitting circuit 101 is sampled by the second end, the fifth end and the seventh end of the third wireless charging chip XKT-207, meanwhile, the sampled value of the charging current and the threshold value of the charging current are compared and analyzed by the comparator inside the third wireless charging chip XKT-207, if the sampled value of the charging current is greater than the threshold value of the charging current, the first end of the third wireless charging chip XKT-207 outputs a low level signal, the first triode Q1 is turned on, and the first light emitting diode LED1 is turned on, which indicates that the charging battery 103 is in a charging state; conversely, if the sampled value of the charging current is smaller than the threshold value of the charging current, the first terminal of the third wireless charging chip XKT-207 will output a high level signal, the second transistor Q2 is turned on, and the second light emitting diode LED2 will be turned on, indicating that the rechargeable battery 103 is in a full state. The color of the first light emitting diode LED1 may be orange, and the color of the second light emitting diode LED2 may be green, so as to distinguish the charging battery 103 from each other in different charging states.
In this embodiment, the charging current is set to be 320-800mA according to the resistance value of the fourth resistor R4, and the threshold value of the charging current can be appropriately adjusted according to the actual resistance value of the fourth resistor R4 in the actual circuit design process.
In the present embodiment, specifically, by changing the inductance amounts of the primary coil L1 and the secondary coil L2, the distance between the wireless transmitting circuit 101 and the wireless receiving circuit 102 is increased from the existing 3-5mm to 8mm, thereby further achieving an increase in the wireless charging distance.
Fig. 4 is a circuit diagram of a first wired charging circuit provided in an embodiment of the present invention, referring to fig. 4, the first wired charging circuit 104 includes: a first wired charging chip U4 of model TP4056 and a tenth resistor R10.
The second end of the first wired charging chip U4 is connected with the first end of the tenth resistor R10; the first end and the third end of the first wired charging chip U4 are grounded; the fourth end and the eighth end of the first wired charging chip U4 are input with power supply voltages; the fifth end of the first wired charging chip U4 is connected to the rechargeable battery 103, and is configured to supply power to the rechargeable battery 103.
Fig. 5 is a circuit diagram of a first LED lamp branch according to an embodiment of the present invention, referring to fig. 5, the first LED lamp branch includes: a third light emitting diode LED3 and an eleventh resistor R11.
The first end of the eleventh resistor R11 is connected with the sixth end of the first wired charging chip U3; the negative electrode of the third light emitting diode LED3 is connected to the second end of the eleventh resistor R11, and is configured to perform a corresponding state prompt according to the charging state of the rechargeable battery 103; the positive electrode of the third light emitting diode LED3 inputs the power supply voltage.
Fig. 6 is a circuit diagram of a second LED lamp branch according to an embodiment of the present invention, referring to fig. 6, the second LED lamp branch includes: a fourth light emitting diode LED4 and a twelfth resistor R12.
The first end of the twelfth resistor R12 is connected with the seventh end of the first wired charging chip U4; the negative electrode of the fourth light emitting diode LED4 is connected to the second end of the twelfth resistor R12, and is configured to perform a corresponding state prompt according to the charging state of the rechargeable battery 103; the positive electrode of the fourth light emitting diode LED4 inputs the power supply voltage.
The light emitting color of the third light emitting diode LED3 may be green, and the light emitting color of the fourth light emitting diode LED4 may be orange, so as to distinguish the charging state of the rechargeable battery 103 when the rechargeable battery 103 is charged in a wired manner.
Fig. 7 is a circuit diagram of a wireless receiving circuit provided in an embodiment of the present invention, referring to fig. 7, the wireless receiving circuit includes: secondary coil L2, first wireless charging receiving chip U5 of model T3168, and rechargeable battery mount BAT1.
In the present embodiment, when the secondary coil L2 in the wireless receiving circuit 102 receives the energy emitted from the primary coil L1 in the wireless transmitting circuit 101, the rechargeable battery 103 connected to the wireless receiving circuit 102 is supplemented with energy by the first wireless charging receiving chip U5, so as to realize wireless charging of the rechargeable battery 103 in the scanning gun.
In addition, in the circuit, various terminals have a predetermined naming definition, for example, CHRG indicates a state of charge, AGND/GND indicates a ground, and the like, and the functions of all the terminals are not described one by one.
On the basis of the above embodiment, as shown in fig. 8, a structural block diagram of another scan gun charging circuit according to an embodiment of the present invention is provided, where the scan gun charging circuit further includes: a trigger circuit 107, a scan circuit 108, a control circuit 109, a memory circuit 110, and a state presenting circuit 111;
A trigger circuit 107 connected to the control circuit 109 and the scan circuit 108, for driving the scan circuit 108 to operate according to the trigger signal, and for driving the control circuit 109 to send out a lock signal;
A scanning circuit 108 connected to the control circuit 109 for transmitting the data information obtained by scanning to the control circuit 109;
a control circuit 109 connected to the data receiving circuit 112 for transmitting the data information scanned by the scanning circuit 108 to the data receiving circuit 112;
a storage circuit 110 connected to the control circuit 109 for storing the data information of the target bar code acquired by the scanning circuit 108;
The state prompting circuit 111 is connected to the control circuit 109, and is used for prompting different states according to different scanning results when the scanning circuit 108 scans the target bar code.
Wherein the charging current ranges from 320 mA to 800mA.
In this embodiment, before the target bar code is scanned, a trigger signal needs to be sent out by the trigger circuit 107, and after the trigger signal is received by the scan circuit 108 and the control circuit 109, the scan circuit 108 starts scanning and identifying the target bar code, and the control circuit 109 starts normal operation, and controls the scan circuit 108, the storage circuit 110, the status prompting circuit 111, and the data receiving circuit 105 which are connected by the control circuit 109. Wherein the data receiving circuit 105 is provided in the terminal device.
It should be noted that, in this embodiment, the rechargeable battery 103 in the scanning gun may be charged in a wireless or wired manner, and the data information of the target bar code scanned and acquired by the scanning gun may be transmitted in a wireless or wired manner.
The specific scanning process is as follows: when the control circuit 109 sends a scan command to the scan circuit 108, the scan circuit 108 will detect and scan the target bar code according to the received scan command, and detect whether the data information of the target bar code is successfully identified through the control circuit 108, if the data information is successfully identified, save the data information scanned by the scan circuit 108 into the storage circuit 110 through the control circuit 109, and detect the specific connection mode of the scan circuit 108 at the current moment. If the connection mode is wireless connection, the control circuit 109 sends the scanned data information to the data receiving circuit 112 through the 2.4G antenna; if the connection is a wired connection, the control circuit 109 uploads the data information to the terminal device where the data receiving circuit 112 is located through the USB data line, and performs a status prompt on the scan result through the status prompt circuit 111. If the state prompting circuit 111 prompts that the data information of the target bar code is not successfully scanned, the scanning and the recognition of the target bar code are performed again.
According to the technical scheme, on the basis of wireless or wired charging of the scanning gun, the scanning circuit is driven by the trigger circuit to scan the target bar code, the data information obtained by scanning of the scanning circuit is stored by the drive control circuit, the data information is uploaded to the associated terminal equipment in a wireless or wired data transmission mode, and different scanning results of the scanning circuit are subjected to different state prompts by the state prompt circuit, so that the wireless or wired data transmission mode of the scanning gun is further realized, the data transmission speed and the transmission stability are improved, and the use experience of a user is improved.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (8)
1. A scanning gun charging circuit, comprising: the wireless transmitting circuit, the wireless receiving circuit, the rechargeable battery and the first wired charging circuit;
the wireless transmitting circuit includes: the wireless charging system comprises a first wireless charging module, a second wireless charging module and a third wireless charging module;
The first wireless charging module is connected with the second wireless charging module and is used for outputting power to the second wireless charging module;
The second wireless charging module is connected with the third wireless charging module and is used for outputting charging current;
The third wireless charging module is used for carrying out state prompt on the charging state of the rechargeable battery;
One end of the wireless receiving circuit is connected with the rechargeable battery and is used for receiving the energy sent by the wireless transmitting circuit and charging the rechargeable battery;
the first wired charging circuit is connected with the rechargeable battery and used for charging the rechargeable battery;
wherein, the third wireless charging module includes: the third wireless charging chip is in the model of XKT-207, and comprises a first triode, a second triode, a first light emitting diode, a second light emitting diode, a sixth resistor, a seventh resistor, an eighth resistor and a ninth resistor;
the first end of the third wireless charging chip is connected with the base electrode of the first triode and the base electrode of the second triode, and is used for comparing and analyzing the charging current with the threshold value of the charging current and outputting corresponding level information;
The negative electrode of the first light-emitting diode is connected with the emitter of the first triode and used for carrying out corresponding state prompt according to the charging state of the rechargeable battery; the negative electrode of the second light emitting diode is connected with the collector electrode of the second triode and is used for carrying out corresponding state prompt according to the charging state of the rechargeable battery;
The positive electrode of the first light-emitting diode and the positive electrode of the second light-emitting diode input power supply voltages; the collector electrode of the first triode and the emitter electrode of the second triode are grounded;
the second end, the fifth end and the seventh end of the third wireless charging chip are connected with the second end of the fifth resistor and are used for sampling the charging current of the second wireless charging module;
the third end of the third wireless charging chip is connected with the first end of the sixth resistor and the first end of the seventh resistor;
The sixth end of the third wireless charging chip is connected with the first end of the eighth resistor and the first end of the ninth resistor;
the fourth end of the third wireless charging chip is grounded; the eighth end of the third wireless charging chip inputs power supply voltage;
The wireless transmitting circuit includes: and the fourth resistor is used for detecting the charging current of the second wireless charging module and determining the threshold value of the charging current.
2. The scan gun charging circuit according to claim 1, further comprising: the first LED lamp branch and the second LED lamp branch;
the first LED lamp branch and the second LED lamp branch are connected with the first wired charging circuit and are used for carrying out state prompt on the charging state of the rechargeable battery.
3. The scan gun charging circuit according to claim 1, wherein said first wireless charging module comprises: the wireless charging device comprises a first wireless charging chip with the model number of XKT-412, a first capacitor, a second capacitor, a first resistor, a second resistor and a third resistor;
The first end of the first wireless charging chip is connected with the first end of the second capacitor, the first end of the first resistor and the first end of the second resistor;
the second end of the first wireless charging chip is connected with the second end of the second resistor;
the third end of the first wireless charging chip is connected with the second end of the second capacitor;
the fourth end of the first wireless charging chip is connected with the sixth end of the first wireless charging chip and used for enhancing the power of the first wireless charging chip, and the fourth end of the first wireless charging chip is connected with the second wireless charging module and used for outputting power; a fifth end of the first wireless charging chip is grounded;
the seventh end of the first wireless charging chip is connected with the first end of the third resistor and the second end of the second capacitor;
the eighth end of the first wireless charging chip inputs a power supply voltage.
4. The scanning gun charging circuit of claim 3, wherein said second wireless charging module comprises: the second wireless charging chip is of the model XKT-335, a third capacitor and a primary coil;
The first end, the second end, the third end and the fourth end of the second wireless charging chip are connected with the second end of the primary coil and the first end of the third capacitor;
The fifth end, the sixth end and the seventh end of the second wireless charging chip are all connected with the first end of the fourth capacitor, the first end of the fourth resistor and the first end of the fifth resistor;
The eighth end of the second wireless charging chip is connected with the sixth end of the first wireless charging chip and is used for inputting power;
the first end of the primary coil is connected with the second end of the third capacitor, and a power supply voltage is input.
5. The scan gun charging circuit according to claim 1, wherein said first wired charging circuit comprises: a first wired charging chip of model TP4056 and a tenth resistor;
The second end of the first wired charging chip is connected with the first end of the tenth resistor; the first end and the third end of the first wired charging chip are grounded; the fourth end and the eighth end of the first wired charging chip are input with power supply voltages; and the fifth end of the first wired charging chip is connected with the rechargeable battery and is used for supplying power to the rechargeable battery.
6. The scanning gun charging circuit of claim 2, wherein said first LED lamp branch comprises: a third light emitting diode and an eleventh resistor;
the first end of the eleventh resistor is connected with the sixth end of the first wired charging chip; the negative electrode of the third light-emitting diode is connected with the second end of the eleventh resistor and is used for carrying out corresponding state prompt according to the charging state of the rechargeable battery; the anode of the third light-emitting diode inputs power supply voltage;
the second LED lamp branch, comprising: a fourth light emitting diode and a twelfth resistor;
The first end of the twelfth resistor is connected with the seventh end of the first wired charging chip; the negative electrode of the fourth light-emitting diode is connected with the second end of the twelfth resistor and is used for carrying out corresponding state prompt according to the charging state of the rechargeable battery; the anode of the fourth light-emitting diode inputs power supply voltage.
7. The scan gun charging circuit according to claim 1, wherein said scan gun charging circuit comprises: the device comprises a trigger circuit, a scanning circuit, a control circuit, a storage circuit and a state prompting circuit;
The trigger circuit is connected with the control circuit and the scanning circuit and is used for driving the scanning circuit to work according to the trigger signal and for driving the control circuit to send out a locking signal;
The scanning circuit is connected with the control circuit and used for sending the data information obtained by scanning to the control circuit;
the control circuit is connected with the data receiving circuit and is used for sending the data information obtained by scanning by the scanning circuit to the data receiving circuit;
the storage circuit is connected with the control circuit and used for storing the data information of the target bar code acquired by the scanning circuit;
and the state prompting circuit is connected with the control circuit and is used for prompting different states according to different scanning results when the scanning circuit scans the target bar code.
8. The scanning gun charging circuit of claim 1, wherein the charging current is in the range of 320-800mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711490402.4A CN107947301B (en) | 2017-12-30 | 2017-12-30 | Scanning gun charging circuit |
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| CN201711490402.4A CN107947301B (en) | 2017-12-30 | 2017-12-30 | Scanning gun charging circuit |
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| CN107947301A CN107947301A (en) | 2018-04-20 |
| CN107947301B true CN107947301B (en) | 2024-06-04 |
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| CN111884351A (en) * | 2020-07-16 | 2020-11-03 | 惠州市新泓威科技有限公司 | Electronic atomization device with wireless charging unit and charging control method thereof |
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| CN203368072U (en) * | 2013-07-02 | 2013-12-25 | Tcl通力电子（惠州）有限公司 | A charge management circuit and a charging device |
| KR20140117185A (en) * | 2013-03-26 | 2014-10-07 | 삼성전기주식회사 | Wireless charging apparatus having rechargable module, wire and wireless complex charing system |
| CN105723589A (en) * | 2013-11-20 | 2016-06-29 | 三星电子株式会社 | Wireless charging apparatus and wireless charging method |
| CN205429841U (en) * | 2016-03-31 | 2016-08-03 | 金衍瑞 | Wireless charger |
| CN206293924U (en) * | 2016-12-09 | 2017-06-30 | 东莞市奥海电源科技有限公司 | Portable power source |
| CN207853510U (en) * | 2017-12-30 | 2018-09-11 | 迅镭智能（广州）科技有限公司 | A kind of scanner charging circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20140086000A (en) * | 2012-12-28 | 2014-07-08 | 삼성전자주식회사 | Terminal which can use wired charging and wireless charging and method for charging thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140117185A (en) * | 2013-03-26 | 2014-10-07 | 삼성전기주식회사 | Wireless charging apparatus having rechargable module, wire and wireless complex charing system |
| CN203368072U (en) * | 2013-07-02 | 2013-12-25 | Tcl通力电子（惠州）有限公司 | A charge management circuit and a charging device |
| CN105723589A (en) * | 2013-11-20 | 2016-06-29 | 三星电子株式会社 | Wireless charging apparatus and wireless charging method |
| CN205429841U (en) * | 2016-03-31 | 2016-08-03 | 金衍瑞 | Wireless charger |
| CN206293924U (en) * | 2016-12-09 | 2017-06-30 | 东莞市奥海电源科技有限公司 | Portable power source |
| CN207853510U (en) * | 2017-12-30 | 2018-09-11 | 迅镭智能（广州）科技有限公司 | A kind of scanner charging circuit |
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