Power bank having fast laser cigarette lighting function, and charging and discharging apparatus

Abstract

Disclosed in the present application are a power bank having a fast laser cigarette lighting function, and a charging and discharging apparatus. The power bank comprises a battery, a charging port, a charging and discharging module, a drive module, and a laser. The battery and the charging port are both connected to the charging and discharging module. An output terminal of the drive module is connected to the laser. An output terminal of the charging and discharging module is connected to an input terminal of the drive module. A control terminal of the charging and discharging module is connected to a gate electrode of a field-effect transistor. A drain electrode of the field effect-transistor is connected to a ground terminal of the drive module. The control terminal of the charging and discharging module is further connected to a first switch. According to the present application, fast charging of a mobile phone and fast start-up of a laser can be achieved, and current loss is reduced.

Description

A power bank and charging / discharging device with fast laser cigarette lighting function

[0001] Cross-reference to related applications

[0002] This disclosure claims priority to Chinese Patent Application No. 202520524403.X, filed on March 24, 2025, entitled "A Power Bank with Fast Laser Cigarette Lighting Function and a Charging and Discharging Device", the entire contents of which are incorporated herein by reference and constitute a part of this disclosure for all purposes. Technical Field

[0003] This disclosure relates to the field of power bank technology, and in particular to a power bank and charging / discharging device with a fast laser cigarette ignition function. Background Technology

[0004] The statements in this section are merely background information relating to this disclosure and do not necessarily constitute prior art.

[0005] To meet the charging needs of mobile devices such as smartphones, tablets, and smartwatches, portable power banks have experienced rapid development. Meanwhile, to meet more diverse daily user needs, portable power banks integrate cigarette lighters to provide convenient cigarette lighting functionality.

[0006] The laser cigarette lighter in current power banks is driven by a driver module, which is powered by the battery in the power bank. A mechanical relay is installed between the battery and the driver module. The coil of the relay is connected to a timer module. The current output by the timer module drives the coil of the relay to generate a magnetic field, which closes the mechanical contacts of the relay, and the circuit between the battery and the driver module is completed. The driver module then drives the laser cigarette lighter to light the cigarette.

[0007] The current power supply method for the laser cigarette lighter driver module results in a decrease in input voltage as battery voltage decreases, leading to fewer cigarette lighting cycles. The relay uses a mechanical structure, which has a slow response speed, typically in the millisecond range. The relay coil is driven by the output current of the timer module to generate a magnetic field that closes the mechanical contacts, which may cause electromagnetic interference and has weak anti-interference capabilities. Frequent switching operations over a long period of time may cause contact wear and poor contact, thus affecting its lifespan and reliability. In addition, when the laser cigarette lighter reaches a certain operating temperature, the circuit will experience more losses through the relay.

[0008] Public content

[0009] To address the aforementioned issues, this disclosure proposes a power bank and charging / discharging device with a fast laser cigarette-lighting function. The output terminal of the charging / discharging module is directly connected to the input terminal of the driving module, reducing current loss. By controlling the gate of the field-effect transistor through a switch, the power consumption is low, and high-frequency switching operations can be achieved.

[0010] To achieve the above objectives, the present disclosure adopts the following technical solution:

[0011] In the first aspect, a power bank with a fast laser cigarette lighting function is proposed, including a battery, a charging port, a charging and discharging module, a driving module and a laser. The battery and the charging port are both connected to the charging and discharging module, and the output end of the driving module is connected to the laser.

[0012] The output terminal of the charging and discharging module is connected to the input terminal of the driving module, the control terminal of the charging and discharging module is connected to the gate of the field-effect transistor, and the drain of the field-effect transistor is connected to the ground terminal of the driving module; the control terminal of the charging and discharging module is also connected to the first switch.

[0013] Furthermore, it also includes a housing, with the battery, charging / discharging module, drive module, laser, and field-effect transistor all housed inside the housing; the charging port and the first switch are located on the housing.

[0014] Furthermore, the charging port is connected to the charging terminal of the charging / discharging module; the battery is connected to the voltage input terminal of the charging / discharging module.

[0015] Furthermore, the source of the field-effect transistor is connected to the ground terminal of the drive module through a second switch.

[0016] Furthermore, a timer module is connected in series between the control terminal of the charging / discharging module and the gate of the field-effect transistor.

[0017] Furthermore, the reset terminal of the timer module is connected to the fourth switch.

[0018] Furthermore, the trigger terminal of the timing module is connected to the third switch.

[0019] Furthermore, the charging / discharging module is connected to the power display device and the battery protection IC.

[0020] Furthermore, the first switch is grounded.

[0021] Secondly, a charging and discharging device is proposed, including a power bank with a fast cigarette lighting function proposed in the first aspect.

[0022] Compared with the prior art, the beneficial effects of this disclosure are as follows:

[0023] This disclosure proposes a power bank and charging / discharging device with a fast laser cigarette lighting function. The power bank directly connects the charging / discharging module to the driving module, reducing current loss. A first switch controls the starting and stopping of the charging / discharging module, which in turn directly controls the gate of a field-effect transistor (FET), connecting or disconnecting the circuit between the charging / discharging module and the driving module. The driving module then drives the laser to light cigarettes or stop driving the laser, achieving rapid laser driving. The FET has low power consumption and no mechanical contacts, with a switching speed in the nanosecond range, enabling high-frequency switching operations. It also has a long lifespan and does not generate heat. The FET's operating frequency is much higher than that of a relay, making it suitable for high-frequency applications, increasing the number of cigarette lighting cycles and battery utilization. The FET is small, lightweight, and inexpensive, making it suitable for high-density integrated circuit design applications. It eliminates arcing and bounce, reducing electromagnetic interference and providing strong radiation resistance. Furthermore, the charging / discharging module outputs a constant voltage, eliminating voltage reduction issues.

[0024] Advantages of this disclosure in additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0026] Figure 1 is a structural block diagram of a power bank with a fast laser cigarette lighting function disclosed in Embodiment 1;

[0027] Figure 2 is a circuit connection diagram of the TYPE-C module disclosed in Embodiment 1;

[0028] Figure 3 is a circuit connection diagram of the charging and discharging module disclosed in Embodiment 1;

[0029] Figure 4 is a circuit connection diagram of the driving module disclosed in Embodiment 1.

[0030] Figure 5 is a circuit connection diagram of the charging and discharging module disclosed in Embodiment 2;

[0031] Figure 6 is a circuit connection diagram of the timer module disclosed in Embodiment 2;

[0032] Figure 7 is a structural block diagram of a power bank with a fast laser cigarette lighting function disclosed in Embodiment 2;

[0033] Figure 8 is a circuit connection diagram of the charging and discharging module disclosed in Embodiment 3;

[0034] Figure 9 is a structural block diagram of a power bank with a fast laser cigarette lighting function disclosed in Embodiment 3. Detailed implementation method:

[0035] The present disclosure will be further described below with reference to the accompanying drawings and embodiments.

[0036] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, 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 pertains.

[0037] In this disclosure, terms such as "fixed connection," "connected," and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can determine the specific meaning of these terms in this disclosure based on the specific circumstances, and they should not be construed as limitations on this disclosure.

[0038] To achieve rapid laser cigarette lighting and fast charging, this disclosure proposes a system including a battery, a charging port, a charging / discharging module, a driving module, and a laser. The battery and the charging port are both connected to the charging / discharging module, and the output of the driving module is connected to the laser.

[0039] The output terminal OUT of the charging and discharging module is connected to the input terminal of the driving module, the control terminal of the charging and discharging module is connected to the gate of the field-effect transistor, and the drain of the field-effect transistor is connected to the ground terminal of the driving module; the control terminal of the charging and discharging module is also connected to the first switch S1.

[0040] The power bank disclosed herein, which has a fast laser cigarette lighting function, also includes a housing, and the battery, charging and discharging module, driving module and field-effect transistor are all disposed inside the housing; the charging port and the first switch are disposed on the housing.

[0041] The source of the field-effect transistor is connected to the ground terminal of the drive module through the second switch S2.

[0042] The first switch S1 is grounded.

[0043] The charging port connects to the charging terminal of the charging / discharging module; the battery connects to the voltage input terminal of the charging / discharging module. The charging port can be a USB interface, preferably a Type-C port. The Type-C port can connect to mobile devices such as mobile phones and tablets, as well as to an external power source. When the Type-C port is connected to a mobile device, the power bank charges the mobile device through its battery; when the Type-C port is connected to an external power source, the external power source charges the battery in the power bank.

[0044] This disclosure can also connect a timer module in series between the control terminal of the charging / discharging module and the gate of the field-effect transistor; the circuit between the charging / discharging module and the field-effect transistor can be connected or disconnected by timed start or disconnection, thereby controlling the laser to start or stop.

[0045] The charging and discharging module connects the power display device and the battery protection IC. It obtains battery power information through the battery protection IC and displays the battery power through the power display device, which can be an LED indicator or a digital tube.

[0046] An inductor L1 is placed between the output of the drive module and the laser.

[0047] The following embodiments will specifically illustrate a power bank with a fast laser cigarette lighting function proposed in this disclosure.

[0048] Example 1

[0049] This embodiment discloses a power bank with a fast laser cigarette lighting function, as shown in Figures 1-4. It includes a battery, a charging port, a charging and discharging module, a driving module, a field-effect transistor, a first switch S1, and a laser. The battery and the charging port are both connected to the charging and discharging module, and the output end of the driving module is connected to the laser.

[0050] In this fast power bank, the output terminal OUT of the charging and discharging module is connected to the input terminal of the driving module; the control terminal of the charging and discharging module is connected to the gate of the field-effect transistor and one end of the first switch S1; the source of the field-effect transistor is connected to the ground terminal of the driving module through the second switch S2, the drain of the field-effect transistor is connected to the ground terminal of the driving module, the other end of the first switch S1 is grounded, and the output terminal of the driving module is connected to the laser.

[0051] The charging port is connected to the charging terminal VBUS of the charging / discharging module; the battery is connected to the voltage input terminal B of the charging / discharging module.

[0052] In this embodiment, the control terminal KEY of the charging / discharging module is connected in series with a resistor R9 and a diode D7; the first switch S1 is connected in series with the control terminal KEY of the charging / discharging module with a resistor R3.

[0053] The charging and discharging module of this embodiment includes a mobile power chip. The charging and discharging module is connected to a battery protection IC and an LED indicator. The battery protection IC can obtain the battery voltage and current, has a built-in power calculation method, accurately obtains the battery power information, and displays the battery power through the LED indicator. The indicator can display the battery power.

[0054] In this embodiment, the power bank chip is an IP5355_ABCC, and a resistor R8 and an inductor L2 are connected in series between the power bank chip and the battery protection IC. Four LEDs are used as indicator lights, driven by a three-wire scanning system. These four LEDs can display the battery levels of 25%, 50%, 75%, and 100%. When abnormal conditions such as high / low temperatures or overvoltage are triggered, the four LEDs flash at 1.25Hz as an alarm. When the battery is low, LED D1 flashes four times at 1.25Hz.

[0055] The charging and discharging module can also automatically enter a light load mode and turn off the indicator light. The synchronous switching boost system can provide a maximum output capacity of 22.5W. When the charging and discharging module Boost is unloaded, it automatically enters a sleep state. When a load is connected and the load current is greater than 30-100mA, the power display is triggered for 35 seconds.

[0056] This charging and discharging module achieves bidirectional power path management through an inductor, enabling automatic detection and switching of charging and discharging modes. It supports 18W charging, with a battery-side charging current of up to 5.0A. It incorporates built-in chip temperature, battery temperature, and input voltage control loops to intelligently adjust the charging current to adapt to adapters with different load capacities. It also integrates trickle, constant current, and constant voltage charging management functions, supporting automatic matching of different charging voltage specifications.

[0057] The charging and discharging module supports multiple fast charging methods and automatically detects when a phone is inserted. Upon phone insertion, it immediately wakes from standby mode, activates the 5V boost converter to charge the phone, and initiates a fast charging handshake request via DP / DM. During charging, it automatically detects the fast charging timing on the DP and DM pins and intelligently identifies the phone type. It integrates USB-C Power Delivery PD2.0 / PD3.0 / PPS protocols, and integrates a physical layer protocol (PHY) and hardware bidirectional tag codec (BMC) module. It supports PD2.0 / PD3.0 bidirectional input / output protocols and PPS output protocol. Both input and output support 5V, 9V, and 12V voltage levels. PD output broadcast capabilities are 5V@3.0A, 9V@2.22A, and 12V@1.67A, and PPS 3.3V~11V@2A, supporting 20W power output. It supports automatic switching of built-in pull-up and pull-down resistors and can automatically identify the charging and discharging attributes of the inserted device.

[0058] The charging and discharging module in this embodiment is also connected to a charging port, which is a USB interface, preferably a TYPEC port, as shown in Figure 2. This port integrates input and output identification interfaces, supports automatic switching of built-in pull-up and pull-down resistors, and can automatically identify the charging and discharging attributes of the inserted device.

[0059] As shown in Figure 3, the charging and discharging module includes a power bank chip, which is connected to the battery protection IC; the power bank chip is also connected to an indicator light.

[0060] Preferably, the four indicator lights are diodes D1, D2, D3, and D4, respectively; diodes D1 and D2 are connected in reverse parallel to form the first light-emitting branch, and diodes D3 and D4 are connected in reverse parallel to form the second light-emitting branch; the first light-emitting branch and the second light-emitting branch are connected in series.

[0061] The power bank chip model is IP5355_ABCC. This power bank chip has a total of thirty-three pins, designated as pin 1, pin 2, pin 3, ..., pin 33. Pins 1, 2, and 32 are the power indicator light driver pins; pins 3, 4, 5, and 6 are DC-DC switching node pins; pin 7 is the internal high-voltage drive pin; pin 8 is the fast charging mode status indicator pin; pin 9 is the VIN charging power detection pin; pin 10 is the VIN charging input MOS control pin; pins 11 and 31 are the system input / output common node pins; pins 12 and 13 are the VBUS2 port input / output power pins; pin 14 is the battery power supply node pin; pin 15 is the button and lighting light pin; pin 16 is the NTC resistor detection pin; pin 17 is the VOUT port mobile phone fast charging intelligent identification DP pin; pin 18 is the VOUT port mobile phone fast charging intelligent identification DM pin; and pin 19 is the VBUS1 port mobile phone fast charging intelligent identification D pin. Pin P, pin 20 is the VBUS1 port fast charging intelligent identification DM pin, pin 21 is the VBUS1 port detection pin CC2 pin, pin 22 is the VBUS1 port detection pin CC1 pin, pin 23 is the VBUS2 port fast charging intelligent identification DP pin, pin 24 is the VBUS2 port fast charging intelligent identification DM pin, pin 25 is the VBUS2 port detection pin CC3 pin, pin 26 is the VBUS2 port detection pin CC4 pin, pins 27 and 28 are the VBUS1 port input / output power pins, pins 29 and 30 are the VOUT output port power pins, and pin 33 is the power ground and heat dissipation ground pins; the first pin of the power bank chip is connected to one end of resistor R7, the second pin of the power bank chip is connected to one end of resistor R6, and the thirty-second pin of the power bank chip is connected to the connection circuit of the first and second light-emitting branches. The other end of resistor R6 is connected to the first light-emitting branch, and the other end of resistor R7 is connected to the second light-emitting branch.

[0062] The battery protection IC comprises two units, U5 and U4. Pins 3, 4, 5, and 6 of this power bank chip are connected in series to one end of inductor L2 and the cathode of diode D6. The anode of diode D6 is grounded. The other end of inductor L2 is connected to one end of resistor R8. The other end of resistor R8 is connected to the power input terminals of battery protection ICs ICU4 and ICU5, and one end of capacitor C1. The other end of capacitor C1 is connected to the ground terminals of battery protection ICs ICU4 and ICU5, which are grounded. Capacitors C17, C18, and C19 are also connected between inductor L2 and resistor R8, and all three are grounded.

[0063] The voltage input terminal B of the charging and discharging module includes a positive voltage input terminal B+ and a negative voltage input terminal B-; the positive voltage input terminal B+ is connected between inductor L2 and resistor R8; the negative voltage input terminal B- is connected to the connection circuit between resistor R8 and battery protection ICU4 and battery protection ICU5.

[0064] The sixth pin of the power bank chip is connected in series with the seventh pin, and a capacitor C16 is connected in series between the sixth pin and the seventh pin.

[0065] The eighth pin of the power bank chip is connected to ground in series with resistor R5.

[0066] The eleventh pin of the power bank chip is connected in series with its thirty-first pin and then grounded.

[0067] The charging terminal VBUS of the charging and discharging module is connected to the twelfth and thirteenth pins of the power bank chip. The charging terminal VBUS of the charging and discharging module is connected to capacitor C8, which is grounded. The charging terminal VBUS of the charging and discharging module is connected to the charging port.

[0068] The fourteenth pin of the power bank chip is connected between inductor L2 and resistor R8. This fourteenth pin is connected to capacitor C15, and capacitor C15 is grounded.

[0069] The fifteenth pin of the power bank chip serves as the control terminal for the charging and discharging module. This fifteenth pin is connected to one end of resistor R9, and the other end of resistor R9 is connected to the anode of diode D7. The cathode of diode D7 is connected to the gate G of the field-effect transistor. The source S of the field-effect transistor is connected to the second switch S2, and the drain D of the field-effect transistor is connected to the ground terminal of the drive module. This fifteenth pin is also connected to one end of resistor R3, and the other end of resistor R3 is connected to the first switch S1, which is grounded.

[0070] The sixteenth pin of the power bank chip is connected to resistor R4, which is grounded.

[0071] Pins 23, 24, 25, and 26 of the power bank chip are all connected to the USB interface.

[0072] The 27th and 28th pins of the power bank chip are connected in series and then connected to capacitor C10, which is grounded.

[0073] The 29th and 30th pins of the power bank chip are connected in series and then connected to capacitor C9, which is grounded. The output of the charging / discharging module is led out from the series circuit of the 29th and 30th pins.

[0074] The thirty-third pin of the power bank chip is grounded.

[0075] As shown in Figure 4, the driver module has an inductor L1 between its output and the laser. The driver module includes a driver chip, which is either FP7102 or FP7103. The driver chip has eight pins: pin 1, pin 2, pin 3... pin 8. Pin 1 is the feedback (FB) pin, pin 2 is the enable (EN) pin, pin 3 is the compensation (COMP) pin, pin 4 is the supply voltage (VCC) pin, pins 5 and 6 are the switching (SW) pins, and pins 7 and 8 are the ground terminals (GND), which are the ground terminals of the driver module.

[0076] The driver chip's first pin is connected to one end of resistor R2, and the other end of resistor R2 is grounded. The driver module's negative output terminal LD- is connected to the circuit connecting the driver chip's first pin and resistor R2. The driver chip's fifth and sixth pins are connected to one end of inductor L1 and the negative terminal of diode D5. The other end of inductor L1 is connected to the driver module's positive output terminal LD+, and the positive terminal of diode D5 is grounded. The circuit connecting inductor L1 and the driver module's positive output terminal is connected to one end of capacitor C6 and one end of capacitor C7, and the other ends of capacitors C6 and C7 are both grounded. The driver chip's third pin is connected to resistor R1 and capacitor C3 in series and then grounded. The driver chip's second and fourth pins are connected to the driver module's input terminal, which is also connected to one end of capacitor C4 and one end of capacitor C5. The other ends of capacitors C4 and C5 are grounded. The driver module's ground terminal is connected to the drain of the field response transistor. The driver module's output terminal is connected to the laser, driving the laser to operate.

[0077] Preferably, the field-effect transistor is AO3400, diode D5 is SS54, diode D6 is 1N5819, and diode D7 is 1N4148.

[0078] The operating method of this disclosure is as follows: The first switch can recognize short and long button operations. A short button press is defined as a duration of more than 100ms but less than 2s. A short press will turn on the power indicator and boost output. After pressing the second switch, a long press is defined as a duration of more than 2s on the first switch. A long press will turn the laser on or off. No response will be given to button presses on the first switch less than 30ms. Two consecutive short button presses on the first switch within 1 second will turn off the boost output and power indicator. A long press of the first switch for more than 10s will reset the entire system; a charging action is required to activate it.

[0079] Example 2

[0080] In this embodiment, a power bank with a fast laser cigarette lighting function is disclosed, as shown in Figures 5-7. It includes a battery, a charging port, a charging and discharging module, a driving module, a field-effect transistor, a first switch S1, a timer module, and a laser. The battery and the charging port are both connected to the charging and discharging module, and the output end of the driving module is connected to the laser.

[0081] The control terminal of the charging / discharging module is connected to the first switch S1, and the reset terminal of the timer module is connected to the fourth switch S4; the trigger terminal of the timer module is connected to the third switch S3; the charging / discharging module is connected to the charging port; the charging port adopts a TYPE-C port, and the internal structure of the TYPE-C port, the charging / discharging module, the field-effect transistor and the drive module is the same as that in Embodiment 1. The circuit diagram of the TYPE-C port and the drive module is the same as that in Embodiment 1, and can be referred to Figures 2 and 4.

[0082] As shown in Figure 5, the control terminal KEY of the charging and discharging module, which is the fifteenth pin of the mobile power chip, is connected to one end of the resistor R3, and the other end of the resistor R3 is connected to the first switch S1, which is grounded.

[0083] The output terminal OUT of the charge / discharge module is connected to the input terminal of the drive module and one end of the fourth switch S4; the other end of the fourth switch S4 is connected to the reset terminal of the timer module; the control terminal of the charge / discharge module is connected to one end of the first switch S1; the other end of the first switch S1 is grounded; the trigger terminal of the timer module is connected to one end of the third switch S3; the other end of the third switch S3 is grounded; the output terminal of the timer module is connected to the gate of the field-effect transistor; the source S of the field-effect transistor is grounded, and the drain D of the field-effect transistor is connected to the ground terminal of the drive module; the output terminal of the drive module is connected to the laser.

[0084] The timer module is shown in Figure 6. This timer module includes a timer chip, model NE555DR, which has eight pins: pin 1, pin 2, pin 3, ..., pin 7 and pin 8. Pin 1 is the ground pin GND, pin 2 is the trigger voltage input pin TRIG, pin 3 is the voltage signal output pin OUT, pin 4 is the reset voltage input pin RESET, pin 5 is the control voltage input pin CVOLT, pin 6 is the threshold voltage input pin THOLD, pin 7 is the discharge pin DISCHG, and pin 8 is the power supply pin VCC.

[0085] The timer chip has the following configuration: the first pin is grounded; the second pin is connected to resistor RD2 and one end of the third switch S3, the other end of resistor RD2 is connected to one end of the fourth switch S4, and the other end of the third switch S3 is grounded; the third pin is connected to the gate of the field-effect transistor; the fourth and eighth pins are connected to the other end of the fourth switch S4; the fifth pin is connected to one end of capacitor CD2, and the other end of capacitor CD2 is grounded; the sixth and seventh pins are connected, the sixth pin is also connected to one end of capacitor CD1, and the other end of capacitor CD1 is grounded; the seventh pin is also connected to resistor RD1, and the other end of resistor RD1 is connected to one end of the fourth switch S4.

[0086] The trigger terminal of the timer module is led out from the second pin of the timer chip, the reset terminal of the timer module is led out from the fourth pin of the timer chip, and the output terminal of the timer module is led out from the third pin.

[0087] The circuit works as follows: the laser automatically shuts off after the timer module is set; the power indicator and boost output of the charging and discharging module are turned on by lightly touching the first switch S1; the laser timer output is turned on by lightly touching the third switch S3 after the flip cover is connected to the fourth switch S4; the laser automatically shuts off after the set time has elapsed; or the laser can be stopped by closing the fourth switch S4.

[0088] Example 3

[0089] This embodiment discloses a power bank with a fast laser cigarette lighting function, as shown in Figures 8 and 9. In this embodiment, the charging and discharging chip of the charging and discharging module in Embodiments 1 and 2 is replaced with a chip of the IP5356_188 series, and the power display device is replaced with a digital tube; the remaining electrical components and connection circuits are the same as in Embodiments 1 and 2.

[0090] This power bank chip is a model from the IP5356_188 series. This type of power bank chip has a total of forty-one pins, designated as pin 1, pin 2, pin 3, ..., pin 41. Pins 1, 2, 9, 10, 11, and 40 are the power indicator light driver pins; pins 3, 4, 5, 6, and 7 are DC-DC switching node pins; pin 8 is the internal high-voltage drive pin; pins 12, 13, 38, and 39 are the system input / output common node pins; pins 14 and 15 are VBUS port input / output VBUS power pins; pins 16 and 17 are VIN port input VIN charging power pins; pin 18 is the battery power node pin; pin 19 is the analog ground pin; pin 20 is the chip's 3.3V voltage output pin; pin 21 is the button and lighting light pin; and pin 22 is the NTC resistor detection pin. The test pins are as follows: Pin 23 is the VIN port fast charging smart identification DP pin; Pin 24 is the VIN port fast charging smart identification DM pin; Pin 25 is the VBUS port fast charging smart identification DP pin; Pin 26 is the VBUS port fast charging smart identification DM pin; Pin 27 is the VBUS port detection pin CC2; Pin 28 is the VBUS port detection pin CC1; Pin 29 is the Lightning input port CC line pin; Pin 30 is the VOUT1 port fast charging smart identification DP pin; Pin 31 is the VOUT1 port fast charging smart identification DM pin; Pin 32 is the VOUT2 port fast charging smart identification DP pin; Pin 33 is the VOUT2 port fast charging smart identification DM pin; Pins 34 and 35 are the VOUT2 output port power pins; Pins 36 and 37 are the VOUT1 output port power pins; Pin 41 is the power ground and heat dissipation ground pins.

[0091] When this model of charge / discharge chip is connected to a 188-type digital tube displaying the corresponding battery level, in charging mode, the indicator light flashes at a frequency of 0.5Hz when the battery level is 0-99% and remains constantly lit when the battery level is 100%; in discharging mode, the indicator light flashes at a frequency of 1Hz when the battery level is less than 5% and remains constantly lit when the battery level is greater than 5% and the battery level is greater than 5%; the indicator light remains constantly lit when the battery level is 5-100%. For the IP5356_188 series chip, pin 40 is connected to pin 1 of the digital tube, pin 1 is connected to pin 2, pin 2 is connected to pin 3, pin 9 is connected to pin 4, and pin 10 is connected to pin 5.

[0092] The circuit operates in accordance with the reference methods of Embodiments 1 and 2.

[0093] This disclosure presents a power bank with a fast laser cigarette lighting function. The charging / discharging module is directly connected to the driving module, reducing current loss. The control terminal of the charging / discharging module is connected to the driving module via a field-effect transistor (FET). A first switch controls the start and stop of the charging / discharging module. When the charging / discharging module starts, the FET is activated, thereby controlling the driving module. It features low power consumption, no mechanical contacts, and a nanosecond-level switching speed, enabling high-frequency switching operations. It also has a long service life and does not generate heat. The FET's operating frequency is much higher than that of a relay, making it suitable for high-frequency applications, increasing the number of cigarette lighting cycles and battery utilization. FETs are small, lightweight, and inexpensive, making them suitable for high-density integrated circuit design applications. They eliminate the need for contact arcing and bounce, reducing electromagnetic interference and providing strong radiation resistance. Furthermore, the charging / discharging module outputs a constant voltage, eliminating voltage drop issues, making it suitable for low-voltage and low-current control applications such as electronic switches and power amplifiers.

[0094] The charging and discharging module disclosed herein is also connected to a charging port, which integrates input and output fast charging protocols, can automatically identify charging and discharging modes, and realizes a bidirectional charging and discharging port, thereby enabling charging of mobile devices. It integrates charging and discharging fast charging protocols, supports 18W charging, and the battery-side charging current can reach up to 5.0A. It also features adaptive charging current adjustment, and the mobile phone fast charging power can reach 22.5W.

[0095] Example 4

[0096] In this embodiment, a charging and discharging device is disclosed, including a power bank with a fast laser cigarette lighting function disclosed in Embodiment 1, Embodiment 2 or Embodiment 3.

[0097] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0098] While the specific embodiments of this disclosure have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of this disclosure. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of this disclosure are still within the scope of protection of this disclosure.

Claims

1. A power bank with a fast laser cigarette lighting function, comprising a battery, a charging port, a charging / discharging module, a driving module, and a laser, wherein the battery and the charging port are both connected to the charging / discharging module, and the output end of the driving module is connected to the laser, characterized in that, The output terminal of the charging and discharging module is connected to the input terminal of the driving module, the control terminal of the charging and discharging module is connected to the gate of the field-effect transistor, and the drain of the field-effect transistor is connected to the ground terminal of the driving module; the control terminal of the charging and discharging module is also connected to the first switch.

2. A power bank with a fast laser cigarette lighting function as described in claim 1, characterized in that, It also includes a housing, with the battery, charging / discharging module, drive module, laser, and field-effect transistor all housed inside the housing; the charging port and the first switch are located on the housing.

3. A power bank with a fast laser cigarette lighting function as described in claim 1, characterized in that, The charging port is connected to the charging terminal of the charging / discharging module; the battery is connected to the voltage input terminal of the charging / discharging module.

4. A power bank with a fast laser cigarette lighting function as described in claim 1, characterized in that, The source of the field-effect transistor is connected to the ground terminal of the drive module through the second switch.

5. A power bank with a fast laser cigarette-lighting function as described in claim 1, characterized in that, A timer module is connected in series between the control terminal of the charging / discharging module and the gate of the field-effect transistor.

6. A power bank with a fast laser cigarette-lighting function as described in claim 5, characterized in that, The reset terminal of the timer module is connected to the fourth switch.

7. A power bank with a fast laser cigarette-lighting function as described in claim 5, characterized in that, The trigger terminal of the timing module is connected to the third switch.

8. A power bank with a fast laser cigarette-lighting function as described in claim 1, characterized in that, The charging / discharging module connects to the power display device and the battery protection IC.

9. A power bank with a fast laser cigarette-lighting function as described in claim 1, characterized in that, The first switch is grounded.

10. A charging and discharging device, characterized in that, The power bank with a fast laser cigarette-lighting function as described in any one of claims 1-9.

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