Multifunctional flashlight driving circuit

Abstract

The utility model discloses a multifunctional flashlight driving circuit which comprises a control module, a power supply module and a power utilization module. The control module comprises a main control chip U1, and a key S1, a key S2, a key S3 and a key S4 which are electrically connected with the main control chip U1; the power supply module adopts a power supply chip U2, is connected with the power transmission interface TPC1 through a field effect transistor Q12, and is connected with the power utilization module through a main control chip U1 to supply power; the power utilization module comprises a main lamp unit, an auxiliary lamp unit, a laser lamp unit and an ignition unit. Therefore, the power supply chip outputs corresponding current and voltage to the main lamp, the auxiliary lamp, the laser lamp, the electric heating wire or the power transmission interface based on the control instruction received by the main control chip, so that the multifunctional flashlight realizes diversified functions of multi-lamp-effect output, ignition protection, power supply parameter adjustment and the like, a specific circuit does not need to be specially designed for specific functions, the circuit structure is simple, and the cost is low. And the safety performance is high.

Description

Technical Field

[0001] This utility model relates to the field of circuit design technology, and in particular to a multifunctional flashlight driving circuit. Background Technology

[0002] In outdoor scenarios lacking logistical support, ignition and lighting are fundamental new emergency survival needs. Furthermore, considering emergency communication, power supply is also required. If tools were configured separately for each need, it would be necessary to carry flashlights, magnesium rods, lenses, batteries, solar panels, etc., resulting in poor portability and inconvenient access. Therefore, multi-functional flashlights integrating lighting, ignition, and power supply functions have been developed. These flashlights incorporate multiple LEDs to achieve different lighting effects, include an igniter for igniting flammable materials, and a power outlet for supplying power to electrical devices.

[0003] However, unlike traditional flashlights used only for illumination, these multi-functional flashlights not only need to supply power to LEDs of different specifications, but also need to modulate the current to produce different lighting effects, provide power supply safety protection for the igniter, and perform parameter detection and adjustment output when supplying power to the outside. Existing circuit designs for flashlights are relatively simple in function and lack relevant detection, control, and safety protection designs. Utility Model Content

[0004] This embodiment discloses a multi-functional flashlight driving circuit, specifically including:

[0005] Control module, power supply module, and power consumption module;

[0006] The control module includes a main control chip U1, and buttons S1, S2, S3 and S4 are electrically connected to the main control chip U1.

[0007] The power supply module uses a power chip U2, which is connected to the power transmission interface TPC1 via a field-effect transistor Q12, and is connected to the power consumption module via the main control chip U1 to supply power.

[0008] The power module includes a main lamp unit, an auxiliary lamp unit, a laser lamp unit, and an ignition unit.

[0009] As an optional implementation, pin 38 of the power chip U2 is connected to pin 6 of the field-effect transistor Q12, pins 27, 28, 29, 30, 31, 32, and 33 are connected to pins 2 and 5 of the field-effect transistor Q12, pin 43 is connected to pins 5 and 7 of the power transmission interface TPC1, pin 42 is connected to pins 6 and 8 of the power transmission interface TPC1, pin 41 is connected to pin 3 of the power transmission interface TPC1, pin 40 is connected to pin 9 of the power transmission interface TPC1, and pin 12 is connected to pins 2 and 11 of the power transmission interface TPC1.

[0010] Pins 1 and 3 of the field-effect transistor Q12 are connected to pins 2 and 12 of the power transmission interface TPC1, and pins 1 and 12 of the power transmission interface TPC1 are grounded.

[0011] As an optional implementation, pin 36 of the power chip U2 is connected to pins 4 and 6 of the field-effect transistor Q11, pins 27, 28, 29, 30, 31, 32, and 33 are connected to pins 2 and 5 of the field-effect transistor Q11, and pin 10 is connected to pins 2 and 5 of the field-effect transistor Q11.

[0012] The MOSFET Q11 outputs a +5V voltage at pin 13.

[0013] As an optional implementation, pin 6 of the main control chip U1 is connected to pin 36 of the power chip U2 via diodes D10 and D11. Pin 6 is connected to pin 38 of the power chip U2 via MOSFET Q1 and resistor R49. Pin 14 is connected to pin 36 of the power chip U2. Pin 7 is connected to button S1. Pin 4 is connected to button S2. Pin 5 is connected to button S3. Pin 8 is connected to button S4. Pin 15 is grounded.

[0014] As an optional implementation, the main lamp unit includes an LED1 whose positive terminal is connected to the first pin of the main control chip U1;

[0015] The auxiliary lamp unit includes LEDs RD1, RD2, and RD3 connected to pin 12 of the main control chip U1; LEDs BD1, BD2, and BD3 connected to pin 11 of the main control chip U1; LEDs GD1, GD2, and GD3 connected to pin 10 of the main control chip U1; and LEDs WD1, WD2, WD3, WD4, WD5, WD6, WD7, WD8, WD9, and WD10 connected to pin 3 of the main control chip U1.

[0016] As an optional implementation, the positive terminal of the LED1 is connected to the first pin of the main control chip U1 via resistor R25, parallel resistor R11, and field-effect transistor Q2, and the negative terminal is grounded via parallel resistors R1, R2, and R3.

[0017] Pin 12 of the main control chip U1 is connected to resistor R28 and parallel field-effect transistor Q5 and resistor R28. LED bead RD1 is connected to resistor R60, LED bead RD2 is connected to resistor R61, and LED bead RD3 is connected to resistor R46.

[0018] Pin 11 of the main control chip U1 is connected to resistor R30 and parallel field-effect transistor Q6 and resistor R31. LED bead BD1 is connected to resistor R47, LED bead BD2 is connected to resistor R72, and LED bead BD3 is connected to resistor R63.

[0019] Pin 10 of the main control chip U1 is connected to resistor R33 and parallel field-effect transistor Q7 and resistor R34. LED bead GD1 is connected to resistor R75, LED bead GD2 is connected to resistor R73, and LED bead GD3 is connected to resistor R52.

[0020] Pin 3 of the main control chip is connected to resistor R36 and parallel field-effect transistor Q8 and resistor R37. LED chip WD1 is connected to resistor R56, LED chip WD2 is connected to resistor R57, LED chip WD3 is connected to resistor R58, LED chip WD4 is connected to resistor R59, LED chip WD5 is connected to resistor R70, LED chip WD6 is connected to resistor R71, LED chip WD7 is connected to resistor R62, LED chip WD8 is connected to resistor R64, LED chip WD9 is connected to resistor R74, and LED chip WD10 is connected to resistor R65.

[0021] As an optional implementation, the laser unit includes a laser JD1 connected to pin 13 of the main control chip U1;

[0022] The ignition unit includes a heating wire HR1 connected to pin 16 of the main control chip U1.

[0023] As an optional implementation, pin 13 of the main control chip U1 is connected to resistor R23, parallel to field-effect transistor Q4 and resistor R13, and resistor R5;

[0024] Resistor R4 is connected in parallel with the laser lamp JD1;

[0025] Pin 16 of the main control chip U1 is connected to resistor R22, parallel field-effect transistor Q3, resistor R12, and resistor R44.

[0026] As an optional implementation, pin 22 of the main control chip U1 is connected to pin 5 of the display LED1, pin 23 is connected to pin 4 of the display LED1, pin 24 is connected to pin 3 of the display LED1, pin 25 is connected to pin 2 of the display LED1, and pin 26 is connected to pin 1 of the display LED1.

[0027] Compared with the prior art, this embodiment has the following beneficial effects:

[0028] In this embodiment, the power chip outputs corresponding current and voltage to the main light, auxiliary light, laser light, heating wire or power transmission interface based on the control commands received by the main control chip, thereby enabling the multi-functional flashlight to achieve diverse functions such as multi-light effect output, ignition protection, and power supply parameter adjustment. There is no need to design specific circuits for specific functions, the circuit structure is simple and the safety performance is strong. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this embodiment, the accompanying drawings used in the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Fig. 1 This is a schematic diagram of the circuit structure of the control module in a multi-functional flashlight drive circuit disclosed in this embodiment;

[0031] Fig. 2 This is a schematic diagram of the circuit structure of the power supply module in a multi-functional flashlight driving circuit disclosed in this embodiment;

[0032] Fig. 3 This is a schematic diagram of the circuit structure of the power module in a multifunctional flashlight drive circuit disclosed in this embodiment. Detailed Implementation

[0033] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] Please see Figs. 1-3 This embodiment discloses a multi-functional flashlight driving circuit, including:

[0035] Control module, power supply module, and power consumption module;

[0036] The control module includes a main control chip U1, and buttons S1, S2, S3 and S4 are electrically connected to the main control chip U1.

[0037] The power supply module uses a power chip U2, which is connected to the power transmission interface TPC1 via a field-effect transistor Q12, and is connected to the power consumption module via the main control chip U1 for power supply.

[0038] The power supply module includes the main lamp unit, auxiliary lamp unit, laser lamp unit, and ignition unit.

[0039] Here, the control commands corresponding to functions such as lighting, ignition, and power transmission are all received by each button. Then, the power chip supplies power to the functional units corresponding to the buttons in the power module. In this way, the power supply regulation of the diverse functions of the multi-functional flashlight is unified, and it is not limited to lighting control.

[0040] As an optional implementation, pin 38 of power chip U2 is connected to pin 6 of field-effect transistor Q12, pins 27, 28, 29, 30, 31, 32, and 33 are connected to pins 2 and 5 of field-effect transistor Q12, pin 43 is connected to pins 5 and 7 of power transmission interface TPC1, pin 42 is connected to pins 6 and 8 of power transmission interface TPC1, pin 41 is connected to pin 3 of power transmission interface TPC1, pin 40 is connected to pin 9 of power transmission interface TPC1, and pin 12 is connected to pins 2 and 11 of power transmission interface TPC1.

[0041] Pins 1 and 3 of the field-effect transistor Q12 are connected to pins 2 and 12 of the power transmission interface TPC1, and pins 1 and 12 of the power transmission interface TPC1 are grounded.

[0042] Here, the power transmission interface TPC1 is used to receive power from an external power source and to transmit power to the connected electrical equipment.

[0043] As an optional implementation, pin 36 of power chip U2 is connected to pins 4 and 6 of field-effect transistor Q11, pins 27, 28, 29, 30, 31, 32, and 33 are connected to pins 2 and 5 of field-effect transistor Q11, and pin 10 is connected to pins 2 and 5 of field-effect transistor Q11.

[0044] Pin 13 of the field-effect transistor Q11 outputs a +5V voltage.

[0045] As an optional implementation, pin 6 of the main control chip U1 is connected to pin 36 of the power chip U2 via diodes D10 and D11. Pin 6 is connected to pin 38 of the power chip U2 via MOSFET Q1 and resistor R49. Pin 14 is connected to pin 36 of the power chip U2. Pin 7 is connected to button S1. Pin 4 is connected to button S2. Pin 5 is connected to button S3. Pin 8 is connected to button S4. Pin 15 is grounded.

[0046] Here, pin 6, TPCIN-TEST, of the main control chip U1 is a charging input detection pin. When an external power supply is connected, the power supply interface TPC1 is triggered to low voltage, which controls the power chip U2 to charge the battery.

[0047] Each button connected to the main control chip U1 corresponds to a specific functional unit. For example, button S1 is used to control the main lamp unit, button S2 is used to control the auxiliary lamp unit, button S3 is used to control the ignition unit, and button S4 is used to control the laser lamp unit.

[0048] Furthermore, by performing multiple clicks or long presses on a single button, diverse controls can be applied to its corresponding functional unit. For example, after clicking button S1 to turn on the main light unit's level 1 high beam mode, clicking button S1 again will turn the main light unit into level 2 working light mode, clicking button S1 again will turn the main light unit into level 3 energy-saving light mode, clicking button S1 again will turn the main light unit into level 4 fast flash mode, clicking button S1 again will turn the main light unit into level 5 emergency mode, and clicking button S1 again will turn the main light unit off.

[0049] Understandably, the secondary lights use a variety of LEDs, including red, blue, green, and white LEDs, thus enabling more diverse lighting effects such as alternating three-color flashing.

[0050] In addition, the use of the heating wire HR1 is dangerous, so it is necessary to press and hold button S3 for it to run continuously. In order to ensure that overheating and other problems do not occur, after pressing and holding button S3 for 10 seconds, the main control chip U1 will actively disconnect the power supply to the heating wire HR1 to ensure safety.

[0051] As an optional implementation, the main lamp unit includes an LED1 whose positive terminal is connected to the first pin of the main control chip U1;

[0052] The auxiliary lamp unit includes LEDs RD1, RD2, and RD3 connected to pin 12 of the main control chip U1; LEDs BD1, BD2, and BD3 connected to pin 11 of the main control chip U1; LEDs GD1, GD2, and GD3 connected to pin 10 of the main control chip U1; and LEDs WD1, WD2, WD3, WD4, WD5, WD6, WD7, WD8, WD9, and WD10 connected to pin 3 of the main control chip U1.

[0053] As an optional implementation, the positive terminal of LED1 is connected to pin 1 of the main control chip U1 via resistor R25, parallel resistor R11, and field-effect transistor Q2, and the negative terminal is grounded via parallel resistors R1, R2, and R3.

[0054] Pin 12 of the main control chip U1 is connected to resistor R28 and parallel field-effect transistor Q5 and resistor R28. LED RD1 is connected to resistor R60, LED RD2 is connected to resistor R61, and LED RD3 is connected to resistor R46.

[0055] Pin 11 of the main control chip U1 is connected to resistor R30 and parallel field-effect transistor Q6 and resistor R31. LED BD1 is connected to resistor R47, LED BD2 is connected to resistor R72, and LED BD3 is connected to resistor R63.

[0056] Pin 10 of the main control chip U1 is connected to resistor R33 and parallel field-effect transistor Q7 and resistor R34. LED GD1 is connected to resistor R75, LED GD2 is connected to resistor R73, and LED GD3 is connected to resistor R52.

[0057] Pin 3 of the main control chip is connected to resistor R36 and parallel MOSFET Q8 and resistor R37. LED chip WD1 is connected to resistor R56, LED chip WD2 is connected to resistor R57, LED chip WD3 is connected to resistor R58, LED chip WD4 is connected to resistor R59, LED chip WD5 is connected to resistor R70, LED chip WD6 is connected to resistor R71, LED chip WD7 is connected to resistor R62, LED chip WD8 is connected to resistor R64, LED chip WD9 is connected to resistor R74, and LED chip WD10 is connected to resistor R65.

[0058] As an optional implementation, the laser unit includes a laser JD1 connected to pin 13 of the main control chip U1;

[0059] The ignition unit includes a heating wire HR1 that is connected to pin 16 of the main control chip U1.

[0060] As an optional implementation, pin 13 of the main control chip U1 is connected to resistor R23, parallel to field-effect transistor Q4 and resistor R13, and resistor R5;

[0061] Resistor R4 is connected in parallel with laser lamp JD1;

[0062] Pin 16 of the main control chip U1 is connected to resistor R22, parallel field-effect transistor Q3, resistor R12, and resistor R44.

[0063] Here, for each electrical component, a protection unit is constructed by connecting a field-effect transistor and a resistor in parallel to prevent damage to the component caused by transient current, and to ensure that the failure of the electrical component will not have a cascading effect on other unit modules of the circuit, thus ensuring the safe and reliable use of the multi-functional flashlight in the field.

[0064] As an optional implementation, pin 22 of the main control chip U1 is connected to pin 5 of the display LED1, pin 23 is connected to pin 4 of the display LED1, pin 24 is connected to pin 3 of the display LED1, pin 25 is connected to pin 2 of the display LED1, and pin 26 is connected to pin 1 of the display LED1.

[0065] Here, compared to flashlights that use traditional replaceable batteries, the LED display screen 1 is set up to intuitively display the remaining battery power in a digital manner, which improves the practicality and safety in outdoor scenarios.

[0066] Compared with the prior art, this embodiment has the following beneficial effects:

[0067] In this embodiment, the power chip outputs corresponding current and voltage to the main light, auxiliary light, laser light, heating wire or power transmission interface based on the control commands received by the main control chip, thereby enabling the multi-functional flashlight to achieve diverse functions such as multi-light effect output, ignition protection, and power supply parameter adjustment. There is no need to design specific circuits for specific functions, the circuit structure is simple and the safety performance is strong.

Claims

1. A multi-functional flashlight driving circuit, characterized in that, include: Control module, power supply module, and power consumption module; The control module includes a main control chip U1, and buttons S1, S2, S3 and S4 are electrically connected to the main control chip U1. The power supply module uses a power chip U2, which is connected to the power transmission interface TPC1 via a field-effect transistor Q12, and is connected to the power consumption module via the main control chip U1 to supply power. The power module includes a main lamp unit, an auxiliary lamp unit, a laser lamp unit, and an ignition unit.

2. The multifunctional flashlight driving circuit according to claim 1, characterized in that, include: Pin 38 of the power chip U2 is connected to pin 6 of the field-effect transistor Q12; pins 27, 28, 29, 30, 31, 32, and 33 are connected to pins 2 and 5 of the field-effect transistor Q12; pin 43 is connected to pins 5 and 7 of the power transmission interface TPC1; pin 42 is connected to pins 6 and 8 of the power transmission interface TPC1; pin 41 is connected to pin 3 of the power transmission interface TPC1; pin 40 is connected to pin 9 of the power transmission interface TPC1; and pin 12 is connected to pins 2 and 11 of the power transmission interface TPC1. Pins 1 and 3 of the field-effect transistor Q12 are connected to pins 2 and 12 of the power transmission interface TPC1, and pins 1 and 12 of the power transmission interface TPC1 are grounded.

3. The multifunctional flashlight driving circuit according to claim 2, characterized in that, include: The 36th pin of the power chip U2 is connected to the 4th and 6th pins of the field-effect transistor Q11, the 27th, 28th, 29th, 30th, 31st, 32nd, and 33rd pins are connected to the 2nd and 5th pins of the field-effect transistor Q11, and the 10th pin is connected to the 2nd and 5th pins of the field-effect transistor Q11. The MOSFET Q11 outputs a +5V voltage at pin 13.

4. The multi-functional flashlight driving circuit according to claim 1, characterized in that, include: Pin 6 of the main control chip U1 is connected to pin 36 of the power chip U2 via diodes D10 and D11. Pin 6 is connected to pin 38 of the power chip U2 via MOSFET Q1 and resistor R49. Pin 14 is connected to pin 36 of the power chip U2. Pin 7 is connected to button S1. Pin 4 is connected to button S2. Pin 5 is connected to button S3. Pin 8 is connected to button S4. Pin 15 is grounded.

5. A multifunctional flashlight driving circuit according to claim 4, characterized in that, include: The main lamp unit includes an LED1 whose positive terminal is connected to the first pin of the main control chip U1; The auxiliary lamp unit includes LEDs RD1, RD2, and RD3 connected to pin 12 of the main control chip U1; LEDs BD1, BD2, and BD3 connected to pin 11 of the main control chip U1; LEDs GD1, GD2, and GD3 connected to pin 10 of the main control chip U1; and LEDs WD1, WD2, WD3, WD4, WD5, WD6, WD7, WD8, WD9, and WD10 connected to pin 3 of the main control chip U1.

6. The multifunctional flashlight driving circuit according to claim 5, characterized in that, include: The positive terminal of the LED1 is connected to the first pin of the main control chip U1 via resistor R25, parallel resistor R11, and field-effect transistor Q2, and the negative terminal is grounded via parallel resistors R1, R2, and R3. Pin 12 of the main control chip U1 is connected to resistor R28 and parallel field-effect transistor Q5 and resistor R28. LED bead RD1 is connected to resistor R60, LED bead RD2 is connected to resistor R61, and LED bead RD3 is connected to resistor R46. Pin 11 of the main control chip U1 is connected to resistor R30 and parallel field-effect transistor Q6 and resistor R31. LED bead BD1 is connected to resistor R47, LED bead BD2 is connected to resistor R72, and LED bead BD3 is connected to resistor R63. Pin 10 of the main control chip U1 is connected to resistor R33 and parallel field-effect transistor Q7 and resistor R34. LED bead GD1 is connected to resistor R75, LED bead GD2 is connected to resistor R73, and LED bead GD3 is connected to resistor R52. Pin 3 of the main control chip is connected to resistor R36 and parallel field-effect transistor Q8 and resistor R37. LED chip WD1 is connected to resistor R56, LED chip WD2 is connected to resistor R57, LED chip WD3 is connected to resistor R58, LED chip WD4 is connected to resistor R59, LED chip WD5 is connected to resistor R70, LED chip WD6 is connected to resistor R71, LED chip WD7 is connected to resistor R62, LED chip WD8 is connected to resistor R64, LED chip WD9 is connected to resistor R74, and LED chip WD10 is connected to resistor R65.

7. A multi-functional flashlight driving circuit according to claim 5, characterized in that, include: The laser unit includes a laser JD1 connected to pin 13 of the main control chip U1; The ignition unit includes a heating wire HR1 connected to pin 16 of the main control chip U1.

8. A multifunctional flashlight driving circuit according to claim 7, characterized in that, include: Pin 13 of the main control chip U1 is connected to resistor R23, parallel to field-effect transistor Q4 and resistor R13, and resistor R5; Resistor R4 is connected in parallel with the laser lamp JD1; Pin 16 of the main control chip U1 is connected to resistor R22, parallel field-effect transistor Q3, resistor R12, and resistor R44.

9. A multifunctional flashlight driving circuit according to claim 1, characterized in that, include: Pin 22 of the main control chip U1 is connected to pin 5 of LED1, pin 23 is connected to pin 4 of LED1, pin 24 is connected to pin 3 of LED1, pin 25 is connected to pin 2 of LED1, and pin 26 is connected to pin 1 of LED1.

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