CN204482094U - A kind of control circuit of multifuctional solar LED flashlight - Google Patents

Abstract

The utility model discloses a kind of control circuit of multifuctional solar LED flashlight, comprise intelligent control module, solar recharging module, lighting module, all-wave receiver module, boosting output module and power supply, power supply is rechargeable battery, intelligent control module comprises singlechip chip, wave band switching key and illumination switching key, wave band switching key is connected with two pins of singlechip chip respectively with illumination switching key, described solar recharging module, lighting module, all-wave receiver module and boosting output module are electrically connected with the pin of singlechip chip respectively.Adopt the flashlight of the utility model control circuit, environmental protection, easy to carry, diverse in function, applied widely.Set broadcast receiver, USB export the function of charging, illumination, are stored in rechargeable battery by converting solar energy into electrical energy, and can use as portable power source, and power for self broadcast receiver, illuminating lamp; One-object-many-purposes, can bring great convenience to user.

Description

A control circuit of a multifunctional solar LED flashlight

technical field

The utility model relates to the technical field of a multifunctional flashlight, in particular to a control circuit of a multifunctional solar LED flashlight.

Background technique

The flashlight is a commonly used portable mobile lighting tool. The traditional flashlight is composed of a shell, a reflector, a small incandescent lamp and a dry battery. Because of its simple design, the flashlight is easy to use and carry, and has become an indispensable part of people's daily life. One of the mobile lighting devices. Because incandescent bulbs consume a lot of power and have low luminous efficiency; and dry batteries have limited capacity and short continuous use time, a large amount of dry batteries are consumed during use, especially when lighting for a long time, and a large number of discarded dry batteries will pollute the environment. In order to solve the above problems, people have designed a rechargeable flashlight, which replaces the dry battery with a rechargeable battery and installs it in the lamp tube to supply power to the light bulb. The tail cover is connected to the rear end of the lamp tube to fix the battery. The tail cover is also provided with a charging plug To charge the rechargeable battery, the switch is set on the lamp tube. After connecting the light bulb and the battery, it is used to control the connection and disconnection of the light bulb and the battery, which is easy to use.

However, with the advancement of science and technology, high-brightness white LEDs have attracted more and more attention due to their advantages such as high luminous efficiency, power saving, and long service life, and have been widely used in various lighting fields. As a commonly used high-efficiency, energy-saving and portable mobile lighting tool, a flashlight that uses high-brightness white LEDs instead of small incandescent lamps has been widely used in indoor and outdoor emergency lighting, field operations, exploration, etc. At the same time, a rechargeable LED flashlight was derived. The rechargeable LED flashlight needs to be connected to an external 110V/220V AC power supply when charging. Sometimes, due to the constraints of the AC power supply, there is no way to charge it in time and affect the use. Especially in field operations, expeditions or long-distance travel, often due to the inability to obtain the latest information from the outside world in a timely manner, one lives in an information-obscured space; couplet.

Nowadays, people's requirements for life are greatly improved, and there is an urgent need for more multi-functional products, one thing with multiple functions, which brings great convenience to users. In the field of flashlight lighting, more multi-functional designs are needed to meet outdoor needs. For example, other functions can be added on the basis of lighting, including radio, mobile power supply, solar charging, etc.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the above-mentioned prior art, and provide a control circuit for a multifunctional solar LED flashlight that integrates radio, USB output charging, and lighting. Through the control circuit, the flashlight can convert solar energy into electrical energy for storage It can be used as a mobile power supply and powers its own radio and lighting.

In order to achieve the above object, the technical solution adopted by the utility model is: a control circuit of a multifunctional solar LED flashlight, which is characterized in that it includes an intelligent control module, a solar charging module, a lighting module, a full-band radio module, and a boost output module and power supply, the power supply is a rechargeable battery, and the intelligent control module includes a single-chip microcomputer chip FM8PC71AS, a band switching button S1 and a lighting switching button S2, and the band switching button S1 and the lighting switching button S2 are respectively connected to two pins of the single-chip microcomputer chip FM8PC71AS, and the solar energy The charging module, lighting module, full-band radio module and boost output module are electrically connected to the pins of the single-chip microcomputer chip FM8PC71AS, and the solar charging module converts solar energy into electric energy and stores it in the rechargeable battery, and provides full-band Boost output module power supply.

Further, the solar charging module includes a switching element and a solar charging board, the solar charging board is connected to the rechargeable battery through the switching element, and a diode D2 is also provided between the switching element and the solar charging board, and the control terminal of the switching element is connected to the solar charging board. The ninth pin of the single-chip microcomputer chip FM8PC71AS is electrically connected. The switch element is an enhanced PMOS transistor Q3.

Further, the lighting module includes a front lighting module and a side lighting module, the front lighting module includes a front lighting LED light D1, the negative pole of the front LED light LED6 is grounded through a resistor R1, the positive pole is connected to the power supply through a triode Q1, and the base of the triode Q1 The resistor R10 is connected to the eleventh pin of the single-chip microcomputer chip FM8PC71AS. The side lighting module includes a plurality of side lighting LED lights, and the negative electrodes of the multiple side lighting LED lights LED1, LED2, LED3, LED4, and LED5 are connected in parallel through the resistor R2 Grounded, the positive electrode is connected to the power supply through the enhanced PMOS transistor Q2, and the gate of the enhanced PMOS transistor Q2 is connected to the tenth pin of the single-chip microcomputer chip FM8PC71AS.

Further, the full-band radio module includes a radio chip D6919ZZ, a tuner variable capacitor C3, a tuner variable capacitor C4, an earplug socket, a speaker SP, a magnetic rod antenna ANT1, a magnetic rod antenna, a frequency modulation switch S3, and an amplitude modulation switch S4 , wherein, after the variable capacitor C3 and a capacitor C1 are connected in parallel, one end is connected to the first pin of the radio chip D6919ZZ, and the other end is grounded; after the variable capacitor C4 and a capacitor C2 are connected in parallel, the two ends are respectively connected to the radio chip The first and second pins of D6919ZZ are connected, the third and fourth pins of the radio chip D6919ZZ are grounded, the fifth pin of the radio chip D6919ZZ is connected to the fourth pin of the earplug socket, the sixth pin of the radio chip D6919ZZ The pin is connected to the second pin of the earplug socket, the seventh pin of the radio chip D6919ZZ is connected to the first pin of the earplug socket through the inductance L1, the third pin and the fourth pin of the earplug socket are respectively connected to the two pins of the speaker SP connected to the first input terminal, the magnetic rod antenna ANT1 is connected to the first pin of the earplug socket, the tenth pin of the radio chip D6919ZZ is grounded, and the eleventh and twelve pins of the radio chip D6919ZZ are connected to the magnet through a capacitor C7 and C8 respectively. The rod antenna ANT1 is connected, the thirteenth pin of the radio chip D6919ZZ is grounded, the fourteenth pin of the radio chip D6919ZZ is connected to one end of the magnetic rod antenna through a capacitor C11, and the other end of the magnetic rod antenna is grounded; the FM switch S3 is connected to a One end of the parallel connection of resistor R7 and FM indicator D5 is connected to the fifteenth pin of the radio chip D6919ZZ, and the other end is grounded; one end of the parallel connection of the AM switch S4 with a resistor R8 and the AM indicator D6 is connected to the radio chip D6919ZZ. On the sixteenth pin, the other end is grounded; an indicator light D3 is connected to the seventeenth pin of the radio chip D6919ZZ, and the crystal oscillator XTAL is connected between the eighteenth and nineteenth pins of the radio chip D6919ZZ, and the radio The nineteenth pin of the chip D6919ZZ is grounded, the twenty-seventh pin of the radio chip D6919ZZ is connected to the power supply VCC through the enhanced PMOS transistor Q5, and the gate of the enhanced PMOS transistor Q5 is connected to the seventh pin of the single-chip microcomputer chip FM8PC71AS pin to the thirteenth pin, the twenty-eighth pin of the radio chip D6919ZZ is grounded through the adjustable resistor VOL1, the twenty-first pin to the twenty-sixth pin of the radio chip D6919ZZ are respectively connected to the single-chip microcomputer chip FM8PC71AS The seventh pin to the second pin connection.

Further, the boost output module includes a boost chip FP6291 and a USB interface seat, the first pin of the boost chip FP6291 is connected to the power supply through an inductor L3, and the first pin of the boost chip FP6291 is also connected to the power supply through a diode D4. The first pin of the USB interface seat is connected, the second pin of the boost chip FP6291 is grounded, the third pin is grounded through the resistor R9, the first pin of the USB interface seat is connected to the third pin of the boost chip FP6291 through the resistor R5 Pin connection, the first pin of the USB interface base is grounded through the capacitor C9, the fourth and fifth pins of the USB interface base are grounded, the fourth pin of the boost chip FP6291 is grounded through the resistor R4, the fourth pin of the boost chip FP6291 The pin is connected to the eighth pin of the single-chip microcomputer chip FM8PC71AS, the fifth pin of the boost chip FP6291 is connected to the power supply, the fifth pin of the boost chip FP6291 is grounded through the capacitor C10, and the sixth pin of the boost chip FP6291 is connected to the power supply. The pin is grounded through resistor R8. , the first pin of the boost chip FP6291 is connected to the power supply through the inductor L3, the first pin of the boost chip FP6291 is connected to the first pin of the USB interface seat through the diode D4, and the second pin of the boost chip FP6291 is grounded , the third pin of the boost chip FP6291 is grounded through the resistor R9, the first pin of the USB socket is connected to the third pin of the boost chip FP6291 through the resistor R5, and the first pin of the USB socket is grounded through the capacitor C9 , the fourth pin and the fifth pin of the USB interface seat are grounded, the fourth pin of the boost chip FP6291 is grounded through the resistor R4, the fourth pin of the boost chip FP6291 is connected to the eighth pin of the single-chip movement FM8PC71AS Connection, the fifth pin of the boost chip FP6291 is connected to the power supply, the fifth pin of the boost chip FP6291 is grounded through the capacitor C10, and the sixth pin of the boost chip FP6291 is grounded through the resistor R8.

Further, the utility model also has an emergency dry battery module, the emergency dry battery module includes a dry battery, and the positive pole of the dry battery is connected to the fourteenth pin of the single-chip microcomputer chip FM8PC71AS through the enhanced PMOS transistor Q4 and the resistor R11.

The beneficial effects of the utility model are: the flashlight adopting the above-mentioned control circuit is environmentally friendly, convenient to carry, has various functions and wide application range. It integrates the functions of radio, USB output charging, and lighting. After converting solar energy into electric energy and storing it, it can be used as a mobile power supply and power its own radio and lighting. One thing with multiple functions can bring great convenience to users.

Further, by adopting the control circuit in the utility model, long-distance illumination in the front can also be realized, and at the same time, the side can be used as short-distance illumination; at the same time, high-efficiency and energy-saving white LEDs are used as light sources, which have high luminous efficiency and long service life, reducing battery energy consumption , use for a long time.

Furthermore, an emergency dry battery module is also designed, which can also meet the mobile lighting function through dry batteries, so that it can be used all-weather and in all directions without geographical restrictions.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 is a functional block diagram of the utility model.

Fig. 2 is a schematic diagram of the circuit connection of the utility model.

Fig. 3 is a schematic diagram of the circuit connection of the intelligent control module in the utility model.

Fig. 4 is a schematic diagram of the circuit connection of the solar charging module in the present invention.

Fig. 5 is a schematic diagram of the circuit connection of the lighting module in the present invention.

Fig. 6 is a schematic diagram of the circuit connection of the full-band radio module in the present invention.

FIG. 7 is a schematic diagram of the circuit connection of the boost output module in the present invention.

Detailed ways

As shown in Figure 1-3, the utility model is a control circuit of a multifunctional solar LED flashlight, including an intelligent control module, a solar charging module, a lighting module, a full-band radio module, a boost output module and a power supply, and the power supply is a rechargeable battery , the intelligent control module includes a single-chip microcomputer chip FM8PC71AS, a band switching button S1 and a lighting switching button S2, and the band switching button S1 and the lighting switching button S2 are respectively connected to two pins of the single-chip microcomputer chip FM8PC71AS. The band radio module and the boost output module are electrically connected to the pins of the single-chip microcomputer chip FM8PC71AS, and the solar charging module converts solar energy into electrical energy and stores it in the rechargeable battery, and supplies power for the full-band radio module, lighting module and boost output module.

As shown in Figure 4, the above-mentioned solar charging module includes a switching element and a solar charging board, the solar charging board is connected with the rechargeable battery through a switching element, and a diode D2 is also arranged between the switching element and the solar charging board, the control of the switching element The end is electrically connected with the ninth pin of the single-chip microcomputer chip FM8PC71AS. The switch element is an enhanced PMOS transistor Q3.

As shown in Figure 5, the above lighting module includes a front lighting module and a side lighting module, the front lighting module includes a front lighting LED lamp D1, the negative pole of the front LED lamp LED6 is grounded through a resistor R1, the positive pole is connected to the power supply through a triode Q1, and the triode Q1 The base is connected to the eleventh pin of the single-chip microcomputer chip FM8PC71AS through a resistor R10. The side lighting module includes a plurality of side lighting LED lights, and the negative poles of a plurality of side lighting LED lights LED1, LED2, LED3, LED4, and LED5 are connected in parallel through The resistor R2 is grounded, and the anode is connected to the power supply through the enhanced PMOS transistor Q2, and the gate of the enhanced PMOS transistor Q2 is connected to the tenth pin of the single-chip microcomputer chip FM8PC71AS.

With such a design, the flashlight using the control circuit can realize long-distance illumination in the front, and at the same time, the side can be used as short-distance illumination.

As shown in Figure 6, the above-mentioned full-band radio module includes a radio chip D6919ZZ, a tuner variable capacitor C3, a tuner variable capacitor C4, an earplug socket, a speaker SP, a magnetic rod antenna ANT1, a magnetic rod antenna, a frequency modulation switch S3, an amplitude modulation Switch S4, wherein, one end of the variable capacitor C3 and a capacitor C1 are connected in parallel to the first pin of the radio chip D6919ZZ, and the other end is grounded; the two ends of the variable capacitor C4 and a capacitor C2 are connected in parallel to the The first and second pins of the radio chip D6919ZZ are connected, the third pin and the fourth pin of the radio chip D6919ZZ are grounded, the fifth pin of the radio chip D6919ZZ is connected to the fourth pin of the earplug socket, and the radio chip D6919ZZ’s The sixth pin is connected to the second pin of the earplug socket, the seventh pin of the radio chip D6919ZZ is connected to the first pin of the earplug socket through the inductance L1, the third pin and the fourth pin of the earplug socket are respectively connected to the speaker SP The two input terminals of the radio chip D6919ZZ are connected, the magnetic rod antenna ANT1 is connected to the first pin of the earplug socket, the tenth pin of the radio chip D6919ZZ is grounded, and the eleventh and twelve pins of the radio chip D6919ZZ pass through a capacitor C7 and C8 respectively Connect with the magnetic rod antenna ANT1, the 13th pin of the radio chip D6919ZZ is grounded, the 14th pin of the radio chip D6919ZZ is connected to one end of the magnetic rod antenna through a capacitor C11, and the other end of the magnetic rod antenna is grounded; FM switch S3 One end connected in parallel with a resistor R7 and the FM indicator light D5 is connected to the fifteenth pin of the radio chip D6919ZZ, and the other end is grounded; the end of the AM switch S4 connected in parallel with a resistor R8 and the AM indicator light D6 is connected to the radio chip On the sixteenth pin of D6919ZZ, the other end is grounded; on the seventeenth pin of the radio chip D6919ZZ, an indicator light D3 is connected, and the crystal oscillator XTAL is connected between the eighteenth and nineteenth pins of the radio chip D6919ZZ , the nineteenth pin of the radio chip D6919ZZ is grounded, the twenty-seventh pin of the radio chip D6919ZZ is connected to the power supply VCC through the enhanced PMOS transistor Q5, and the gate of the enhanced PMOS transistor Q5 is connected to the first pin of the single-chip microcomputer chip FM8PC71AS The seven pins are connected to the thirteenth pin, the twenty-eighth pin of the radio chip D6919ZZ is grounded through the adjustable resistor VOL1, and the twenty-first pin to the twenty-sixth pin of the radio chip D6919ZZ are respectively connected to the microcontroller The seventh pin of the chip FM8PC71AS is connected to the second pin.

The radio chip D6919ZZ adopted in this embodiment integrates all radio function modules, and supports FM 56-108MHz/TV audio 174-223MHz/AM 520-1710KHz/shortwave 4.75-21.85MHz bands all over the world. Its principle is to restore the high-frequency signal received from the magnetic rod antenna into an audio signal through detection and demodulation, including intelligent frequency control, automatic gain control, precise digital tuning, and noise suppression functions. In this way, it is possible to listen to global broadcast signals and grasp the latest information from the outside world in real time.

As shown in Figure 7, the above-mentioned boost output module includes a boost chip FP6291 and a USB interface seat, the first pin of the boost chip FP6291 is connected to the power supply through an inductor L3, and the first pin of the boost chip FP6291 is also connected to the power supply through a diode D4 is connected to the first pin of the USB interface seat, the second pin of the boost chip FP6291 is grounded, the third pin is grounded through the resistor R9, the first pin of the USB interface seat is connected to the first pin of the boost chip FP6291 through the resistor R5 Three-pin connection, the first pin of the USB interface base is grounded through the capacitor C9, the fourth and fifth pins of the USB interface base are grounded, the fourth pin of the boost chip FP6291 is grounded through the resistor R4, the boost chip FP6291 The fourth pin is connected to the eighth pin of the single-chip microcomputer chip FM8PC71AS, the fifth pin of the boost chip FP6291 is connected to the power supply, the fifth pin of the boost chip FP6291 is grounded through the capacitor C10, and the fifth pin of the boost chip FP6291 is grounded. The six pins are grounded through resistor R8. , the first pin of the boost chip FP6291 is connected to the power supply through the inductor L3, the first pin of the boost chip FP6291 is connected to the first pin of the USB interface seat through the diode D4, and the second pin of the boost chip FP6291 is grounded , the third pin of the boost chip FP6291 is grounded through the resistor R9, the first pin of the USB socket is connected to the third pin of the boost chip FP6291 through the resistor R5, and the first pin of the USB socket is grounded through the capacitor C9 , the fourth pin and the fifth pin of the USB interface seat are grounded, the fourth pin of the boost chip FP6291 is grounded through the resistor R4, the fourth pin of the boost chip FP6291 is connected to the eighth pin of the single-chip movement FM8PC71AS Connection, the fifth pin of the boost chip FP6291 is connected to the power supply, the fifth pin of the boost chip FP6291 is grounded through the capacitor C10, and the sixth pin of the boost chip FP6291 is grounded through the resistor R8.

By providing a 5V USB interface socket, it can be used by external electrical appliances such as mobile phones, mobile navigation, Ipad, etc., as a mobile power supply.

As shown in Figures 2 and 5, the utility model is also provided with an emergency dry battery module, the emergency dry battery module includes a dry battery, and the positive pole of the dry battery is connected to the fourteenth pin of the single-chip microcomputer chip FM8PC71AS through an enhanced PMOS tube Q4 and a resistor R11. In this way, in case of rainy weather or forgetting to charge, installing a dry battery can also meet the mobile lighting function, and it can be used all-weather and in all directions without geographical restrictions.

The intelligent control module of this utility model adopts FM8PC71AS, which is an 8-bit RISC single-chip microcomputer, multi-channel ADC module, multiple interrupt sources and 4 groups of PWM functions. Using the above-mentioned control circuit, the band switching button S1 can be used to control the switching of each band in turn. The lighting switching button S2 controls the rotation of the front and side lighting. During the charging process, the battery voltage is detected by the chip ADC module and the internal reference voltage. When it reaches the preset value, Q3 stops charging. The charging process includes three parts: pre-charging, constant current, and constant voltage charging. When discharging, the battery voltage is lower than the preset value Q1, Q2, Q5 cut off radio or LED lighting to avoid over-discharge damage to the battery. At the same time, it can switch to dry battery emergency state through Q4 conduction.

Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Simple modifications or equivalent replacements to the technical solution of the utility model by those skilled in the art are all acceptable. Do not depart from the essence and scope of the technical solution of the utility model.

Claims (7)

1. the control circuit of a kind of multifunctional solar energy LED flashlight is characterized in that: comprise intelligent control module, solar charging module, lighting module, all-band radio module, step-up output module and power supply, power supply is rechargeable battery, and intelligent control module comprises The single-chip microcomputer chip FM8PC71AS, the band switching button S1 and the lighting switching button S2, the band switching button S1 and the lighting switching button S2 are respectively connected to two pins of the single-chip microcomputer chip FM8PC71AS, and the solar charging module, the lighting module, the full-band radio module and the The voltage output modules are electrically connected to the pins of the single-chip microcomputer chip FM8PC71AS, and the solar charging module converts solar energy into electrical energy and stores it in the rechargeable battery, and supplies power for the full-band radio module, lighting module and boost output module. 2. The control circuit of the multifunctional solar LED torch according to claim 1, characterized in that: the solar charging module includes a switching element and a solar charging board, the solar charging board is connected with the rechargeable battery through the switching element, and the switching A diode D2 is also provided between the element and the solar charging board, and the control terminal of the switch element is electrically connected to the ninth pin of the single-chip microcomputer chip FM8PC71AS. 3. The control circuit of the multifunctional solar LED flashlight according to claim 2, wherein the switching element is an enhanced PMOS transistor Q3. 4. The control circuit of the multifunctional solar LED flashlight according to claim 1, wherein the lighting module includes a front lighting module and a side lighting module, and the front lighting module includes a front lighting LED lamp D1, and the front LED lamp D1 The negative pole is connected to the ground through the resistor R1, the positive pole is connected to the power supply through the triode Q1, the base of the triode Q1 is connected to the eleventh pin of the single-chip microcomputer chip FM8PC71AS through the resistor R10, the side lighting module includes multiple side lighting LED lights, multiple side lighting The negative electrode of the lighting LED lamp connected in parallel is grounded through the resistor R2, the positive electrode is connected to the power supply through the enhanced PMOS transistor Q2, and the gate of the enhanced PMOS transistor Q2 is connected to the tenth pin of the single-chip microcomputer chip FM8PC71AS. 5. The control circuit of the multifunctional solar LED flashlight according to claim 1, wherein the full-band radio module includes a radio chip D6919ZZ, a tuner variable capacitor C3, a tuner variable capacitor C4, an earplug socket, Speaker SP, magnetic rod antenna ANT1, magnetic rod antenna, frequency modulation switch S3, and amplitude modulation switch S4, wherein, after the channel tuning variable capacitor C3 and a capacitor C1 are connected in parallel, one end is connected to the first pin of the radio chip D6919ZZ, and the other end is grounded; The two ends of the tuner variable capacitor C4 and a capacitor C2 connected in parallel are respectively connected to the first and second pins of the radio chip D6919ZZ, the third pin and the fourth pin of the radio chip D6919ZZ are grounded, and the first and second pins of the radio chip D6919ZZ are grounded. The fifth pin is connected to the fourth pin of the earplug socket, the sixth pin of the radio chip D6919ZZ is connected to the second pin of the earplug socket, the seventh pin of the radio chip D6919ZZ is connected to the first pin of the earplug socket through the inductor L1 Connection, the third and fourth pins of the earplug socket are respectively connected to the two input ends of the speaker SP, the magnetic rod antenna ANT1 is connected to the first pin of the earplug socket, the tenth pin of the radio chip D6919ZZ is grounded, and the radio chip The 11th and 12th pins of D6919ZZ are respectively connected to the magnetic rod antenna ANT1 through capacitor C7 and capacitor C8. One end of the rod antenna is connected, and the other end of the magnetic rod antenna is grounded; one end of the FM switch S3 connected in parallel with a resistor R7 and the FM indicator light D5 is connected to the fifteenth pin of the radio chip D6919ZZ, and the other end is grounded; the AM switch S4 One end connected in parallel with a resistor R8 and the AM indicator light D6 is connected to the sixteenth pin of the radio chip D6919ZZ, and the other end is grounded; an indicator light D3 is connected to the seventeenth pin of the radio chip D6919ZZ, and the crystal oscillator XTAL is connected to Between the eighteenth and nineteenth pins of the radio chip D6919ZZ, the nineteenth pin of the radio chip D6919ZZ is grounded, and the twenty-seventh pin of the radio chip D6919ZZ is connected to the power supply VCC through the enhanced PMOS tube Q5 , the gate of the enhanced PMOS transistor Q5 is connected to the seventh pin to the thirteenth pin of the single-chip microcomputer chip FM8PC71AS, the twenty-eighth pin of the radio chip D6919ZZ is grounded through the adjustable resistor VOL1, and the first pin of the radio chip D6919ZZ The twenty-first pin to the twenty-sixth pin are respectively connected to the seventh pin to the second pin of the single-chip microcomputer chip FM8PC71AS. 6. The control circuit of the multifunctional solar LED flashlight according to claim 1, wherein the boost output module includes a boost chip FP6291 and a USB interface socket, and the first pin of the boost chip FP6291 passes through the inductor L3 Connect to the power supply, and the first pin of the boost chip FP6291 is also connected to the first pin of the USB interface seat through the diode D4, the second pin of the boost chip FP6291 is grounded, the third pin is grounded through the resistor R9, and the USB The first pin of the interface base is connected to the third pin of the boost chip FP6291 through the resistor R5, the first pin of the USB interface base is grounded through the capacitor C9, the fourth and fifth pins of the USB interface base are grounded, and the boost The fourth pin of the chip FP6291 is grounded through the resistor R4, the fourth pin of the boost chip FP6291 is connected to the eighth pin of the single-chip microcomputer chip FM8PC71AS, the fifth pin of the boost chip FP6291 is connected to the power supply, and the boost chip The fifth pin of FP6291 is grounded through capacitor C10, the sixth pin of boost chip FP6291 is grounded through resistor R8, the first pin of boost chip FP6291 is connected to the power supply through inductor L3, the first pin of boost chip FP6291 Connect the first pin of the USB interface seat through the diode D4, the second pin of the boost chip FP6291 is grounded, the third pin of the boost chip FP6291 is grounded through the resistor R9, and the first pin of the USB interface seat is grounded through the resistor R5 Connect with the third pin of the boost chip FP6291, the first pin of the USB interface base is grounded through the capacitor C9, the fourth pin and the fifth pin of the USB interface base are grounded, and the fourth pin of the boost chip FP6291 passes through Resistor R4 is grounded, the fourth pin of the boost chip FP6291 is connected to the eighth pin of the single-chip core FM8PC71AS, the fifth pin of the boost chip FP6291 is connected to the power supply, and the fifth pin of the boost chip FP6291 passes through the capacitor C10 is grounded, and the sixth pin of the boost chip FP6291 is grounded through resistor R8. 7. The control circuit of the multifunctional solar LED flashlight according to any one of claims 1-6, characterized in that: an emergency dry battery module is also provided, the emergency dry battery module includes a dry battery, and the positive pole of the dry battery passes through an enhanced PMOS tube Q4 and resistor R11 are connected to the fourteenth pin of the single-chip microcomputer chip FM8PC71AS.