Multifunctional energy storage television with automatic switching function

Abstract

The utility model relates to a multifunctional energy storage television with automatic switching, which comprises a charging panel, a connector CN1, a connector CN2, a connector CN3, a connector CN4 and an output part, a DC power supply is connected with the input end of the charging panel through the connector CN2, a switch is connected with the input end of the charging panel through the connector CN4, a battery is connected with the charging panel through the connector CN1, and the output part is connected with the charging panel through the connector CN2. The output part is connected with the output end of the charging panel through a connector CN1, the output part comprises a wide voltage chip, a display screen backlight driving module, a TV mainboard chip, a loudspeaker connector, a loudspeaker and external equipment, the input end of the connector CN1 is electrically connected with the charging panel, and the output end of the connector CN1 is connected with the input end of the wide voltage chip. The utility model has the advantages that the functions of being available in power failure, automatically switching the power supply battery to supply power, charging the television battery and the like are realized, and the problems of the traditional television in the aspects of emergency, portability, energy conservation, environmental protection, multiple functions and the like are solved.

Description

Technical Field

[0001] The utility model relates to a multifunctional energy storage television set with automatic switching function, belonging to the field of television sets. Background Art

[0002] Traditional televisions can only be used when they are connected to a power source. If an emergency occurs resulting in a power outage or the power supply is unstable and intermittent in some areas, TV programs cannot be watched.

[0003] When a traditional TV is installed in a car and used, the car will frequently start and stop. At this time, the TV will turn off due to a sudden power outage in the vehicle. When the car starts and the power is restored, the TV will turn on again, but the previously watched video may not be restored at this time and needs to be restored manually, which is very unfriendly to the user experience. Or when the car starts and stops, the traditional car TV uses the power in the car battery to power it. Once the battery in the car is exhausted, the vehicle cannot be started, thus affecting the user's car use needs.

[0004] When parking for a rest, if passengers want to watch TV, the car needs to remain in idle state to maintain power supply to ensure the normal use of the TV. However, a car will produce a large amount of carbon monoxide when idling. Passengers may inhale excessive carbon monoxide without knowing it, leading to carbon monoxide poisoning, or even worse, endangering their lives.

[0005] Due to the limitation of external power supply, it can only be used indoors or in other places with power input.

[0006] Traditional televisions require wiring connections, which is not only unsightly but also poses certain safety risks.

[0007] Traditional televisions need to be plugged in for a long time, wasting a lot of electricity. In the current context of global advocacy of energy conservation and environmental protection, this increases the burden on the environment.

[0008] Traditional televisions can only obtain electricity through a single power supply method such as a power socket. The functions of the television are relatively simple. Once there is a power outage, it cannot be used and cannot provide assistance to other devices.

[0009] Even if traditional TVs have batteries, they are generally external batteries, which usually take up a large space. They are not only unsightly, but also inconvenient to move, which increases additional safety risks. In the face of sudden power outages, the battery power supply needs to be manually switched, which greatly affects the customer's viewing experience.

[0010] The backlight is the component with the most lifespan consumption among all the accessories of LCD TVs, and its lifespan is closely related to the number of times it is ignited. Traditional TVs need to be turned on and off frequently due to unstable power supply. The preheating and high-voltage pulse cathode electron material sputtering increase when turning on the TV, which will shorten the lifespan of the backlight and thus shorten the lifespan of the entire TV.

[0011] The DC power input voltage used by traditional TVs is 12V, and the voltage range is narrow. When faced with impact voltages, such as vehicle startup, solar impact, and hot plugging, the instantaneous voltage and surge are somewhat powerless. If the voltage is lower than 12V, the TV may not start. Utility Model Content

[0012] In order to overcome the defects of the prior art, the utility model provides a multifunctional energy storage TV with automatic switching. The technical solution of the utility model is:

[0013] A multifunctional energy storage television with automatic switching comprises a charging board, a connector CN1, a connector CN2, a connector CN3, a connector CN4 and an output part, wherein a DC power supply is connected to the input end of the charging board through the connector CN2, a switch is connected to the input end of the charging board through the connector CN4, a battery is connected to the charging board through the connector CN1, and the output part is connected to the output end of the charging board through the connector CN1. The output part comprises a wide voltage chip, a display backlight driving module, a TV mainboard chip, a speaker connector, a speaker and an external device. The input end of the connector CN1 is electrically connected to the charging board, and the output end is connected to the input end of the wide voltage chip. The output end of the wide voltage chip is connected to the input end of the TV mainboard chip and the display backlight driving module. One of the output ends of the TV mainboard chip is connected to the speaker through a speaker connector, and the other output end is connected to an external device through a USB interface.

[0014] The charging board is provided with an external DC power supply circuit; a charging circuit for charging the battery with a DC power supply; a battery power supply circuit for supplying power to the charging board; and a switch control circuit for controlling the power supply of the entire circuit.

[0015] The DC power supply circuit is specifically as follows: interface 1 and interface 2 of connector CN1 are connected to the ground in parallel; polar capacitor EC1 and polar capacitor EC2 are connected in parallel between interface 3 and interface 4 of connector CN1 and the ground; inductor L1 is connected to interface 3, interface 4 of connector CN1 and the drain of MOS tube Q3; one end of resistor R3 is connected to the source of MOS tube Q1 and the drain of MOS tube Q3, and the other end is connected to pin 18 of chip GNDPAD; resistor R2 and Zener diode ZD2 are connected in parallel to the source of MOS tube Q1. The anode of the diode D1 is connected to the drain of the MOS tube Q1 and the drain of the MOS tube Q2, and the cathode is connected to the source of the MOS tube Q2 and the interface 1 of the connector CN3; the resistor R1 and the Zener diode ZD1 are connected in parallel between the gate and the source of the MOS tube Q2, and the source of the MOS tube Q2 is connected to the interface 1 of the connector CN3; the resistor R10 and the Zener diode ZD3 are connected in parallel, and the anode of the Zener diode ZD3 is connected to one end of the resistor R7, the gate of the MOS tube Q3 and the gate of the MOS tube Q8, The cathode is connected to the source of the MOS tube Q3 and the source of the MOS tube Q8; the other end of the resistor R7 is connected between the anode of the Zener diode ZD3 and the collector of the transistor Q6; the resistor R11 is connected between the base of the transistor Q6 and the pin 19 of the chip GNDPAD; the resistor R14 is connected between the base of the transistor Q6 and the emitter of the transistor Q6, and the emitter of the transistor Q6 is grounded; the resistor R6 and the capacitor C1 are connected in parallel between the pin 18 of the chip GNDPAD and the ground; the resistor R4 is connected between the MOS tube between the gate of Q1 and the collector of transistor Q4; resistor R8 is connected between the base of transistor Q4 and pin 14 of chip GNDPAD; resistor R12 is connected between the base of transistor Q4 and ground, and the emitter of transistor Q4 is grounded; resistor R5 is connected between the gate of MOS tube Q2 and the collector of transistor Q5; resistor R9 is connected between the base of transistor Q5 and pin 13 of chip GNDPAD; resistor R13 is connected between the base of transistor Q4 and ground, and the emitter of transistor Q4 is grounded.

[0016] The charging circuit is specifically as follows: the drain of the MOS tube Q7 is connected to the interface 3 of the connector CN2, the source is grounded, and a diode is connected in parallel between the source and drain of the MOS tube Q7; the Zener diode ZD4 and the resistor R15 are connected in parallel between the source of the MOS tube Q7 and the gate of the MOS tube Q7; the resistor R16 is connected between the gate of the MOS tube Q7 and the drain of the MOS tube Q8, and the drain of the MOS tube Q8 is connected to the interface 1 of the connector CN2; the resistor R22 is connected between the drain of the MOS tube Q8 and the pin 20 of the chip GNDPAD; the resistor R28 and the capacitor C5 are connected in parallel between the pin 20 of the chip GNDPAD and the ground; the resistor R19 is connected between the drain of the MOS tube Q8 and the port 3 of the operational amplifier; the resistor R24 ​​is connected Between port 3 of the operational amplifier and ground; one end of the inductor L2 is connected to interface 1 of connector CN2, the drain of MOS tube Q8, resistor R16, one end of resistor R22 and resistor R19, and the other end is connected to the positive electrodes of polar capacitor EC3 and polar capacitor EC4, capacitor C2, capacitor C3, capacitor C4, resistor R20, resistor R18, resistor R39, resistor R43, resistor R45 and one end of resistor R38; polar capacitor EC3, polar capacitor EC4, capacitor C2, capacitor C3, capacitor C4, resistor R20, resistor R43 are connected in parallel between one end of the inductor L2 and ground; resistor R18 is connected between the inductor L2 and the drain of MOS tube Q11, and between the source of MOS tube Q11 and the drain of MOS tube Q11 A diode is connected in parallel; both ends of the resistor R39 are short-circuited, connecting the inductor L2, the resistor R18, the resistor R43 and one end of the resistor R45; the other end of the resistor R45 is connected between the pin 31 of the chip U3 and the inductor L2; the resistor R38 is connected between the pin 1 of the chip U3 and the inductor L2; the resistor R40 is connected between the pin 32 of the chip U3 and the drain of the MOS tube Q11; the capacitor C12 is connected between the pin 1 and the pin 32 of the chip U3; the resistor R25 is connected between the pin 29 of the chip U3 and the gate of the MOS tube Q11; one end of the inductor L3 is connected to the pin 28 of the chip U3, the capacitor C9, the capacitor C14, the source of the MOS tube Q11, and the drain of the MOS tube Q13, and the two ends of the inductor L3 are connected to the chip U3 Pin 22 of chip U3, capacitor C10, capacitor C20, source of MOS tube Q10 and drain of MOS tube Q14; capacitor C13 is connected between pin 28 and pin 30 of U3; resistor R34 is connected between pin 27 of chip U3 and gate of MOS tube Q13, source of MOS tube Q13 is grounded, and a diode is connected in parallel between source and drain of MOS tube Q13; capacitor C9 and resistor R31 are connected in series between drain of MOS tube Q13 and ground; capacitor C10 and resistor R32 are connected in series between drain of MOS tube Q14 and ground; resistor R23 is connected between pin 21 of chip U3 and gate of MOS tube Q10; resistor R33 is connected between pin 23 of chip U3 and gate of MOS tube Q14;One end of the resistor R17 is connected to the drain of the MOS tube Q10 and one end of the resistor R49, and the other end is connected to the resistor R50, the resistor R51, the cathode of the diode D9, the anode of the diode D2, the drain of the MOS tube Q9, the resistor R26, the positive electrode of the polar capacitor EC5, the positive electrode of the polar capacitor EC6, the capacitor C6, the capacitor C7, and the capacitor C8; the resistor R26, the positive electrode of the polar capacitor EC5, the positive electrode of the polar capacitor EC6, the capacitor C6, the capacitor C7, and the capacitor C8 are connected in parallel between the drain of the MOS tube Q9 and the interface 2 of the connector CN3, and the interface 2 of the connector CN3 is grounded; the diode D2 is connected in parallel between the drain and the source of the MOS tube Q9; the Zener diode ZD5 and the resistor R21 are connected in parallel between the gate and the source of the MOS tube Q9, and the source of the MOS tube Q9 is connected to the interface 1 of the connector CN3, and the connector CN3 is used to connect the battery. ;

[0017] The battery power supply circuit is specifically as follows: resistor R27 is connected between the gate of MOS tube Q9 and the collector of transistor Q12, and the emitter of transistor Q12 is grounded; resistor R29 is connected between pin 12 of chip GNDPAD and the base of transistor Q12; resistor R30 is connected between the base of transistor Q12 and ground; capacitor C14 is connected between pin 28 and pin 30 of chip U3; the cathode of diode D5 is connected to pin 30 of chip U3 and capacitor C14, and the anode is connected to pin 24 of U3, pin 25 of U3, capacitor C15, capacitor C16, and the anode of diode D7; capacitor C15 and capacitor C16 are connected in parallel, one end of which is connected to pin 26 of U3 and ground, and the other end is connected to pin 24 of chip U3. , pin 25 of chip U3, the anode of diode D5 and the anode of diode D7; the anode of diode D7 is connected to pin 24 of chip U3 and pin 25 of chip U3, and the cathode is connected to pin 20 of chip U3 and capacitor C20; capacitor C20 is connected between pin 20 of chip U3 and pin 22 of chip U3; the other end of resistor R49 is connected between pin 18 of chip U3 and the drain of MOS tube Q10; resistor R50 is connected between pin 17 of chip U3 and the drain of MOS tube Q9; capacitor C22 is connected between pin 17 of chip U3 and pin 18 of chip U3; resistor R51 is connected between pin 19 of chip U3 and the drain of MOS tube Q9; resistor R54 and resistor R55 are connected in parallel. Between pin 19 of chip U3 and pin 16 of chip U3; capacitor C23 is connected between pin 19 of chip U3 and ground; pin 33 of chip U3 is grounded; resistor R62 and resistor R64 are connected in series between pin 16 of chip U3 and ground; resistor R61 and capacitor C24 are connected in series between pin 16 of chip U3 and ground; pin 12 of chip U3 is grounded; pin 13 of chip U3, pin 3 of chip U3, pin 6 of chip U3, pin 5 of chip U3, and pin 2 of chip U3 are connected; the cathode of diode D9 is connected to the drain of MOS tube Q9, and the anode is connected to pin 7 of chip U3 and resistor R63; resistor R63 is connected between pin 7 of chip U3 and pin 11 of chip GNDPAD; resistor R6 5 is connected between pin 11 of chip GNDPAD and ground; resistor R60 is connected between pin 8 of chip U3 and pin 10 of chip GNDPAD; resistor R59 is connected between pin 10 of chip U3 and pin 16 of chip GNDPAD; resistor R58 is connected between pin 9 of chip U3 and pin 17 of chip GNDPAD; one end of resistor R57 is connected between pin 10 of chip U3 and pin 16 of chip GNDPAD, and the other end is connected between resistor R58 and port 3 of chip U2; one end of resistor R58 is connected between pin 9 of chip U3 and pin 17 of chip GNDPAD, and the other end is connected between resistor R57 and port 3 of chip U2; capacitor C21 is connected between pin 4 of chip U3 and ground;One end of capacitor 25 is connected to pin 6 of chip GNDPAD and port 3 of chip U2, and the other end is grounded; pin 4 of chip GNDPAD is grounded; capacitor C26 is connected between pin 2 of chip GNDPAD and ground; capacitor C27 is connected between pin 3 of chip GNDPAD and ground; end 1 of crystal oscillator Y1 is connected to pin 2 of chip GNDPAD, end 3 is connected to pin 3 of chip GNDPAD, and ends 2 and 4 are grounded; pin 21 of chip GNDPAD is grounded; capacitor C11 is connected between port 5 of operational amplifier U1 and ground, port 5 of operational amplifier U1 is connected to port 3 of chip U2, and port 2 of operational amplifier U1 is grounded; resistor R35 is connected between port 4 of operational amplifier U1 and chip GNDPAD. AD pin 5; capacitor C12 is connected between pin 5 of chip GNDPAD and ground; resistor R41 is connected between port 1 of operational amplifier U1 and ground; one end of resistor R44 is connected between port 1 of operational amplifier U1 and resistor R41, and the other end is connected between port 3 of chip U2, the positive electrode of polar capacitor EC7, and capacitor C18; polar capacitor EC7 and capacitor C18 are connected in parallel between port 3 of chip U2 and ground; resistor R46 is connected between pin 9 of chip GNDPAD and port 3 of chip U2; resistor R47 and thermistor RT1 are connected in series and then connected in parallel with capacitor C19 between pin 9 of chip GNDPAD and ground; resistor R36 is connected between pin 15 of chip GNDPAD and port 2 of chip U2. ;

[0018] The switch control circuit is specifically as follows: a diode D4 and a resistor R37 are connected in series between the gate of the MOS tube Q15 and the interface 1 of the connector CN4, the cathode of the diode D4 is connected to the interface 2 of the connector CN4, the interface 2 of the connector CN4 is grounded, and the connector CN4 is used to connect the switch; the anode of the diode D3 is connected to the pin 15 of the chip GNDPAD, and the cathode is connected to the interface 1 of the connector CN4; the resistor R42 is connected between the gate and the source of the MOS tube Q15, and the source of the MOS tube Q15 is connected to the interface 1 of the connector CN3; the diode D6 is connected in series with the capacitor C17, the anode is connected to the drain of the MOS tube Q15, the cathode is connected to one end of the capacitor C17, and the other end of the capacitor C17 is grounded; the anode of the diode D8 is connected to the interface 1 of the connector CN2, and the cathode is connected to the port 2 of the chip U2; the resistor R48 and the light-emitting diode LED1 are connected in series between the port 2 of the chip U2 and the ground, and the cathode of the light-emitting diode LED1 is grounded.

[0019] The advantages of the utility model are:

[0020] 1. It realizes the functions of being available during power outages, automatically switching to battery power supply, and rechargeable TV batteries, solving the problems of traditional TVs in terms of emergency, portability, energy saving and environmental protection, and multi-functional use.

[0021] 2. With built-in batteries, you can switch to battery power in time even if the power supply is intermittent in areas with unstable power supply. In addition, in disasters or emergencies, such as power outages and natural disasters, TVs with batteries can become an important communication medium. Through it, you can get rescue information, news and emergency announcements in time to protect your own safety.

[0022] 3. It can be placed in the car. Even if the car brakes and the engine stops, so that the TV can no longer be powered, it can still be used. At this time, the TV will switch to the internal battery for power supply. There is no need to worry about consuming the power in the car battery, thereby affecting the start of the car, and there is no need to worry about the car being idle to power the TV, which may cause carbon monoxide poisoning to the passengers. It is safe and fuel-efficient. Moreover, when encountering traffic jams, the car needs to be started frequently, and the TV is repeatedly started. At this time, the intervention of the battery solves the problem of losing the video being watched due to the restart of the TV.

[0023] 4. Traditional TVs have limited usage scenarios due to external power restrictions, but this TV can be taken to outdoor camping due to the presence of batteries, and the long battery life can also give users an excellent experience.

[0024] 5. Unlike traditional TVs that require wiring connections, TVs with batteries can be placed and laid out more freely without being restricted by the location of the power supply. This can help us better create a neat and beautiful indoor environment.

[0025] 6. Compared with the single power supply of traditional TV sets, this TV set has multiple power supply options. When there is an external power supply, you can charge the battery while watching TV. You can also use other methods to charge the battery, including chargers, car power charging and solar charging, etc. Therefore, no matter what the circumstances, the normal power supply of the TV set can be guaranteed, which greatly enriches the user's usage methods.

[0026] 7. This TV can not only be used to watch TV programs, but also use its battery to power other devices. For example, it can power emergency lights, charge mobile phones, be used as a GPS navigation tool or as a communication tool, providing some basic life conveniences.

[0027] 8. By integrating the battery into the TV, the user's space is greatly saved, which not only makes the TV more beautiful, but also makes it easier to move and place the TV. The absence of an external battery also reduces the risk of leakage due to exposed battery cables.

[0028] 9. The power supply in some areas is not stable enough, the current is intermittent, and the voltage fluctuates. The present invention can automatically switch to battery power supply in time when the power is suddenly cut off, and can immediately switch to external power supply when the external power is restored. This process does not require users to frequently switch manually, thereby optimizing the user experience.

[0029] 10. When the TV is frequently started, timely switching to battery power supply avoids the increase of sputtering of high-voltage pulse cathode electron materials, reduces the life consumption of electronic components such as backlight, and extends the service life of the TV.

[0030] 11. This TV supports 10-15V DC wide voltage input, can be used at lower input voltage, and can calmly cope with impact voltage, such as vehicle startup, solar impact, hot plug, instantaneous voltage and surge, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0032] Figure 2 yes Figure 1 Schematic diagram of the circuit structure of the charging board. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with specific embodiments, and the advantages and features of the present invention will become clearer as the description proceeds. However, these embodiments are merely exemplary and do not constitute any limitation to the scope of the present invention. It should be understood by those skilled in the art that the details and forms of the technical solution of the present invention may be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements fall within the scope of protection of the present invention.

[0034] See also Figure 1 and Figure 2 The utility model relates to a multifunctional energy storage television with automatic switching, including a charging board, a connector CN1, a connector CN2, a connector CN3, a connector CN4 and an output part, wherein a DC power supply is connected to an input end of the charging board through the connector CN2, a switch is connected to an input end of the charging board through the connector CN4, a battery is connected to the charging board through the connector CN1, and the output part is connected to an output end of the charging board through the connector CN1. The output part includes a wide voltage chip, a display backlight driving module, a TV mainboard chip, a speaker connector, a speaker and an external device, the input end of the connector CN1 is electrically connected to the charging board, and the output end is connected to the input end of the wide voltage chip, the output end of the wide voltage chip is connected to the input end of the TV mainboard chip and the display backlight driving module, one of the output ends of the TV mainboard chip is connected to the speaker through a speaker connector, and the other output end is connected to an external device through a USB interface.

[0035] The switch connects to the charging board through connector CN4 to control the conduction and shutdown of the entire circuit. When the switch is turned on, when there is an external DC power input, the DC power inputs the voltage into the charging board through connector CN2. The charging board receives the signal, charges the battery through connector CN3 and shuts down the process of the battery discharging to the outside. At this time, the DC power supplies power to the entire charging board and the output part. When the switch is turned on, when the external DC power output is disconnected, the charging board receives the signal and controls the battery to discharge to the outside. At this time, the battery supplies power to the entire charging board and the output part. When the wide voltage chip receives the input voltage from the charging board through connector CN1, it increases the voltage to power the display backlight driver while reducing the voltage to power the TV mainboard. The TV mainboard powers the speaker through the speaker connector and connects the external device through the USB interface to power the external device.

[0036] The charging board is provided with an external DC power supply circuit; a charging circuit for charging the battery with a DC power supply; a battery power supply circuit for supplying power to the charging board; and a switch control circuit for controlling the power supply of the entire circuit.

[0037] The DC power supply circuit is specifically as follows: interface 1 and interface 2 of connector CN1 are connected to the ground in parallel; polar capacitor EC1 and polar capacitor EC2 are connected in parallel between interface 3 and interface 4 of connector CN1 and the ground; inductor L1 is connected to interface 3, interface 4 of connector CN1 and the drain of MOS tube Q3; one end of resistor R3 is connected to the source of MOS tube Q1 and the drain of MOS tube Q3, and the other end is connected to pin 18 of chip GNDPAD; resistor R2 and Zener diode ZD2 are connected in parallel to the source of MOS tube Q1. The anode of the diode D1 is connected to the drain of the MOS tube Q1 and the drain of the MOS tube Q2, and the cathode is connected to the source of the MOS tube Q2 and the interface 1 of the connector CN3; the resistor R1 and the Zener diode ZD1 are connected in parallel between the gate and the source of the MOS tube Q2, and the source of the MOS tube Q2 is connected to the interface 1 of the connector CN3; the resistor R10 and the Zener diode ZD3 are connected in parallel, and the anode of the Zener diode ZD3 is connected to one end of the resistor R7, the gate of the MOS tube Q3 and the gate of the MOS tube Q8, The cathode is connected to the source of the MOS tube Q3 and the source of the MOS tube Q8; the other end of the resistor R7 is connected between the anode of the Zener diode ZD3 and the collector of the transistor Q6; the resistor R11 is connected between the base of the transistor Q6 and the pin 19 of the chip GNDPAD; the resistor R14 is connected between the base of the transistor Q6 and the emitter of the transistor Q6, and the emitter of the transistor Q6 is grounded; the resistor R6 and the capacitor C1 are connected in parallel between the pin 18 of the chip GNDPAD and the ground; the resistor R4 is connected between the MOS tube between the gate of Q1 and the collector of transistor Q4; resistor R8 is connected between the base of transistor Q4 and pin 14 of chip GNDPAD; resistor R12 is connected between the base of transistor Q4 and ground, and the emitter of transistor Q4 is grounded; resistor R5 is connected between the gate of MOS tube Q2 and the collector of transistor Q5; resistor R9 is connected between the base of transistor Q5 and pin 13 of chip GNDPAD; resistor R13 is connected between the base of transistor Q4 and ground, and the emitter of transistor Q4 is grounded.

[0038] The charging circuit is specifically as follows: the drain of the MOS tube Q7 is connected to the interface 3 of the connector CN2, the source is grounded, and a diode is connected in parallel between the source and drain of the MOS tube Q7; the Zener diode ZD4 and the resistor R15 are connected in parallel between the source of the MOS tube Q7 and the gate of the MOS tube Q7; the resistor R16 is connected between the gate of the MOS tube Q7 and the drain of the MOS tube Q8, and the drain of the MOS tube Q8 is connected to the interface 1 of the connector CN2; the resistor R22 is connected between the drain of the MOS tube Q8 and the pin 20 of the chip GNDPAD; the resistor R28 and the capacitor C5 are connected in parallel between the pin 20 of the chip GNDPAD and the ground; the resistor R19 is connected between the drain of the MOS tube Q8 and the port 3 of the operational amplifier; the resistor R24 ​​is connected Between port 3 of the operational amplifier and ground; one end of the inductor L2 is connected to interface 1 of connector CN2, the drain of MOS tube Q8, resistor R16, one end of resistor R22 and resistor R19, and the other end is connected to the positive electrodes of polar capacitor EC3 and polar capacitor EC4, capacitor C2, capacitor C3, capacitor C4, resistor R20, resistor R18, resistor R39, resistor R43, resistor R45 and one end of resistor R38; polar capacitor EC3, polar capacitor EC4, capacitor C2, capacitor C3, capacitor C4, resistor R20, resistor R43 are connected in parallel between one end of the inductor L2 and ground; resistor R18 is connected between the inductor L2 and the drain of MOS tube Q11, and between the source of MOS tube Q11 and the drain of MOS tube Q11 A diode is connected in parallel; both ends of the resistor R39 are short-circuited, connecting the inductor L2, the resistor R18, the resistor R43 and one end of the resistor R45; the other end of the resistor R45 is connected between the pin 31 of the chip U3 and the inductor L2; the resistor R38 is connected between the pin 1 of the chip U3 and the inductor L2; the resistor R40 is connected between the pin 32 of the chip U3 and the drain of the MOS tube Q11; the capacitor C12 is connected between the pin 1 and the pin 32 of the chip U3; the resistor R25 is connected between the pin 29 of the chip U3 and the gate of the MOS tube Q11; one end of the inductor L3 is connected to the pin 28 of the chip U3, the capacitor C9, the capacitor C14, the source of the MOS tube Q11, and the drain of the MOS tube Q13, and the two ends of the inductor L3 are connected to the chip U3 Pin 22 of chip U3, capacitor C10, capacitor C20, source of MOS tube Q10 and drain of MOS tube Q14; capacitor C13 is connected between pin 28 and pin 30 of U3; resistor R34 is connected between pin 27 of chip U3 and gate of MOS tube Q13, source of MOS tube Q13 is grounded, and a diode is connected in parallel between source and drain of MOS tube Q13; capacitor C9 and resistor R31 are connected in series between drain of MOS tube Q13 and ground; capacitor C10 and resistor R32 are connected in series between drain of MOS tube Q14 and ground; resistor R23 is connected between pin 21 of chip U3 and gate of MOS tube Q10; resistor R33 is connected between pin 23 of chip U3 and gate of MOS tube Q14;One end of the resistor R17 is connected to the drain of the MOS tube Q10 and one end of the resistor R49, and the other end is connected to the resistor R50, the resistor R51, the cathode of the diode D9, the anode of the diode D2, the drain of the MOS tube Q9, the resistor R26, the positive electrode of the polar capacitor EC5, the positive electrode of the polar capacitor EC6, the capacitor C6, the capacitor C7, and the capacitor C8; the resistor R26, the positive electrode of the polar capacitor EC5, the positive electrode of the polar capacitor EC6, the capacitor C6, the capacitor C7, and the capacitor C8 are connected in parallel between the drain of the MOS tube Q9 and the interface 2 of the connector CN3, and the interface 2 of the connector CN3 is grounded; the diode D2 is connected in parallel between the drain and the source of the MOS tube Q9; the Zener diode ZD5 and the resistor R21 are connected in parallel between the gate and the source of the MOS tube Q9, and the source of the MOS tube Q9 is connected to the interface 1 of the connector CN3, and the connector CN3 is used to connect the battery. ;

[0039] The battery power supply circuit is specifically as follows: resistor R27 is connected between the gate of MOS tube Q9 and the collector of transistor Q12, and the emitter of transistor Q12 is grounded; resistor R29 is connected between pin 12 of chip GNDPAD and the base of transistor Q12; resistor R30 is connected between the base of transistor Q12 and ground; capacitor C14 is connected between pin 28 and pin 30 of chip U3; the cathode of diode D5 is connected to pin 30 of chip U3 and capacitor C14, and the anode is connected to pin 24 of U3, pin 25 of U3, capacitor C15, capacitor C16, and the anode of diode D7; capacitor C15 and capacitor C16 are connected in parallel, one end of which is connected to pin 26 of U3 and ground, and the other end is connected to pin 24 of chip U3. , pin 25 of chip U3, the anode of diode D5 and the anode of diode D7; the anode of diode D7 is connected to pin 24 of chip U3 and pin 25 of chip U3, and the cathode is connected to pin 20 of chip U3 and capacitor C20; capacitor C20 is connected between pin 20 of chip U3 and pin 22 of chip U3; the other end of resistor R49 is connected between pin 18 of chip U3 and the drain of MOS tube Q10; resistor R50 is connected between pin 17 of chip U3 and the drain of MOS tube Q9; capacitor C22 is connected between pin 17 of chip U3 and pin 18 of chip U3; resistor R51 is connected between pin 19 of chip U3 and the drain of MOS tube Q9; resistor R54 and resistor R55 are connected in parallel. Between pin 19 of chip U3 and pin 16 of chip U3; capacitor C23 is connected between pin 19 of chip U3 and ground; pin 33 of chip U3 is grounded; resistor R62 and resistor R64 are connected in series between pin 16 of chip U3 and ground; resistor R61 and capacitor C24 are connected in series between pin 16 of chip U3 and ground; pin 12 of chip U3 is grounded; pin 13 of chip U3, pin 3 of chip U3, pin 6 of chip U3, pin 5 of chip U3, and pin 2 of chip U3 are connected; the cathode of diode D9 is connected to the drain of MOS tube Q9, and the anode is connected to pin 7 of chip U3 and resistor R63; resistor R63 is connected between pin 7 of chip U3 and pin 11 of chip GNDPAD; resistor R6 5 is connected between pin 11 of chip GNDPAD and ground; resistor R60 is connected between pin 8 of chip U3 and pin 10 of chip GNDPAD; resistor R59 is connected between pin 10 of chip U3 and pin 16 of chip GNDPAD; resistor R58 is connected between pin 9 of chip U3 and pin 17 of chip GNDPAD; one end of resistor R57 is connected between pin 10 of chip U3 and pin 16 of chip GNDPAD, and the other end is connected between resistor R58 and port 3 of chip U2; one end of resistor R58 is connected between pin 9 of chip U3 and pin 17 of chip GNDPAD, and the other end is connected between resistor R57 and port 3 of chip U2; capacitor C21 is connected between pin 4 of chip U3 and ground;One end of capacitor 25 is connected to pin 6 of chip GNDPAD and port 3 of chip U2, and the other end is grounded; pin 4 of chip GNDPAD is grounded; capacitor C26 is connected between pin 2 of chip GNDPAD and ground; capacitor C27 is connected between pin 3 of chip GNDPAD and ground; end 1 of crystal oscillator Y1 is connected to pin 2 of chip GNDPAD, end 3 is connected to pin 3 of chip GNDPAD, and ends 2 and 4 are grounded; pin 21 of chip GNDPAD is grounded; capacitor C11 is connected between port 5 of operational amplifier U1 and ground, port 5 of operational amplifier U1 is connected to port 3 of chip U2, and port 2 of operational amplifier U1 is grounded; resistor R35 is connected between port 4 of operational amplifier U1 and chip GNDPAD. AD pin 5; capacitor C12 is connected between pin 5 of chip GNDPAD and ground; resistor R41 is connected between port 1 of operational amplifier U1 and ground; one end of resistor R44 is connected between port 1 of operational amplifier U1 and resistor R41, and the other end is connected between port 3 of chip U2, the positive electrode of polar capacitor EC7, and capacitor C18; polar capacitor EC7 and capacitor C18 are connected in parallel between port 3 of chip U2 and ground; resistor R46 is connected between pin 9 of chip GNDPAD and port 3 of chip U2; resistor R47 and thermistor RT1 are connected in series and then connected in parallel with capacitor C19 between pin 9 of chip GNDPAD and ground; resistor R36 is connected between pin 15 of chip GNDPAD and port 2 of chip U2. ;

[0040] The switch control circuit is specifically as follows: a diode D4 and a resistor R37 are connected in series between the gate of the MOS tube Q15 and the interface 1 of the connector CN4, the cathode of the diode D4 is connected to the interface 2 of the connector CN4, the interface 2 of the connector CN4 is grounded, and the connector CN4 is used to connect the switch; the anode of the diode D3 is connected to the pin 15 of the chip GNDPAD, and the cathode is connected to the interface 1 of the connector CN4; the resistor R42 is connected between the gate and the source of the MOS tube Q15, and the source of the MOS tube Q15 is connected to the interface 1 of the connector CN3; the diode D6 is connected in series with the capacitor C17, the anode is connected to the drain of the MOS tube Q15, the cathode is connected to one end of the capacitor C17, and the other end of the capacitor C17 is grounded; the anode of the diode D8 is connected to the interface 1 of the connector CN2, and the cathode is connected to the port 2 of the chip U2; the resistor R48 and the light-emitting diode LED1 are connected in series between the port 2 of the chip U2 and the ground, and the cathode of the light-emitting diode LED1 is grounded.

[0041] Interface 1 and interface 2 of connector CN1 are connected to ground in parallel; polar capacitor EC1 and polar capacitor EC2 are connected in parallel between interface 3 and interface 4 of connector CN1 and ground; inductor L1 is connected between interface 3 and interface 4 of connector CN1 and the drain of MOS tube Q3; one end of resistor R3 is connected to the source of MOS tube Q1 and the drain of MOS tube Q3, and the other end is connected to pin 18 of chip GNDPAD; resistor R2 and Zener diode ZD2 are connected in parallel between the source and drain of MOS tube Q1; the anode of diode D1 is connected to the drain of MOS tube Q1 and the drain of MOS tube Q2 and the diode, and the cathode is connected to the source of MOS tube Q2 and interface 1 of connector CN3; resistor R1 and Zener diode ZD2 are connected in parallel between the source and drain of MOS tube Q1 and the drain of MOS tube Q2 and the diode; the cathode of diode D1 is connected to the source of MOS tube Q2 and interface 1 of connector CN3; resistor R1 and Zener diode ZD2 are connected to the ... and Zener diode ZD2 are connected to the drain of MOS tube Q1 and the drain of MOS tube Q2 and the drain of MOS tube Q3 and the drain of MOS tube Q1 and the drain of MOS tube Q2 and the diode; the cathode of resistor R1 and Zener diode ZD2 are connected to the drain of MOS tube Q1 and the drain of The transistor ZD1 is connected in parallel between the gate and source of the MOS transistor Q2, and the source of the MOS transistor Q2 is connected to the interface 1 of the connector CN3; the resistor R10 and the Zener diode ZD3 are connected in parallel, the anode of the Zener diode ZD3 is connected to the resistor R7, the gate of the MOS transistor Q3 and the gate of the MOS transistor Q8, and the cathode is connected to the source of the MOS transistor Q3 and the source of the MOS transistor Q8; the resistor R7 is connected between the anode of the Zener diode ZD3 and the collector of the transistor Q6; the resistor R11 is connected between the base of the transistor Q6 and the pin 19 of the chip GNDPAD; the resistor R14 is connected between the base of the transistor Q6 and the emitter of the transistor Q6, and the emitter of the transistor Q6 is grounded; the resistors R6 and Capacitor C1 is connected in parallel between pin 18 of chip GNDPAD and ground; resistor R4 is connected between the gate of MOS tube Q1 and the collector of transistor Q4; resistor R8 is connected between the base of transistor Q4 and pin 14 of chip GNDPAD; resistor R12 is connected between the base of transistor Q4 and ground, and the emitter of transistor Q4 is grounded; resistor R5 is connected between the gate of MOS tube Q2 and the collector of transistor Q5; resistor R9 is connected between the base of transistor Q5 and pin 13 of chip GNDPAD; resistor R13 is connected between the base of transistor Q4 and ground, and the emitter of transistor Q4 is grounded; the drain of MOS tube Q7 is connected to interface 3 of connector CN2 , the source is grounded, and a diode is connected in parallel between the source and drain of the MOS tube Q7; the Zener diode ZD4 and the resistor R15 are connected in parallel between the source of the MOS tube Q7 and the gate of the MOS tube Q7; the resistor R16 is connected between the gate of the MOS tube Q7 and the drain of the MOS tube Q8, and the drain of the MOS tube Q8 is connected to the interface 1 of the connector CN2; the resistor R22 is connected between the drain of the MOS tube Q8 and the pin 20 of the chip GNDPAD; the resistor R28 and the capacitor C5 are connected in parallel between the pin 20 of the chip GNDPAD and the ground; the resistor R19 is connected between the drain of the MOS tube Q8 and the port 3 of the operational amplifier; the resistor R24 ​​is connected between the port 3 of the operational amplifier and the ground;One end of the inductor L2 is connected to the interface 1 of the connector CN2, the drain of the MOS tube Q8, the resistor R16, the resistor R22, and the resistor R19, and the other end is connected to the positive electrodes of the polar capacitor EC3 and the polar capacitor EC4, the capacitor C2, the capacitor C3, the capacitor C4, the resistor R20, the resistor R18, the resistor R39, the resistor R43, the resistor R45, and the resistor R38; the polar capacitor EC3, the polar capacitor EC4, the capacitor C2, the capacitor C3, the capacitor C4, the resistor R20, and the resistor R43 are connected in parallel between one end of the inductor L2 and the ground; the resistor R18 is connected between the inductor L2 and the drain of the MOS tube Q11, and there is a diode connected in parallel between the source and the The drain of MOS tube Q11; the two ends of resistor R39 are short-circuited, connected to inductor L2, resistor R18, resistor R43, and resistor R45; resistor R45 is connected between pin 31 of chip U3 and inductor L2; resistor R38 is connected between pin 1 of chip U3 and inductor L2; resistor R40 is connected between pin 32 of chip U3 and drain of MOS tube Q11; capacitor C12 is connected between pin 1 and pin 32 of chip U3; resistor R25 is connected between pin 29 of chip U3 and gate of MOS tube Q11; one end of inductor L3 is connected to pin 28 of chip U3, capacitor C9, capacitor C14, source of MOS tube Q11, and MOS tube Q2. The drain of the S transistor Q13 has two ends connected to the pin 22 of the chip U3, the capacitor C10, the capacitor C20, the source of the MOS transistor Q10, and the drain of the MOS transistor Q14; the capacitor C13 is connected between the pin 28 and the pin 30 of U3; the resistor R34 is connected between the pin 27 of the chip U3 and the gate of the MOS transistor Q13, the source of the MOS transistor Q13 is grounded, and a diode is connected in parallel between the source and the drain of the MOS transistor Q13; the capacitor C9 and the resistor R31 are connected in series between the drain of the MOS transistor Q13 and the ground; the capacitor C10 and the resistor R32 are connected in series between the drain of the MOS transistor Q14 and the ground; the resistor R23 is connected between the pin 21 of the chip U3 and the M The resistor R33 is connected between the pin 23 of the chip U3 and the gate of the MOS tube Q14; one end of the resistor R17 is connected to the drain of the MOS tube Q10 and the resistor R49, and the other end is connected to the resistor R50, the resistor R51, the cathode of the diode D9, the anode of the diode D2, the drain of the MOS tube Q9, the resistor R26, the positive electrode of the polarity capacitor EC5, the positive electrode of the polarity capacitor EC6, the capacitor C6, the capacitor C7, and the capacitor C8; the resistor R26, the positive electrode of the polarity capacitor EC5, the positive electrode of the polarity capacitor EC6, the capacitor C6, the capacitor C7, and the capacitor C8 are connected in parallel between the drain of the MOS tube Q9 and the interface 2 of the connector CN3;

[0042] The power supply principle of the external DC power supply circuit is as follows: when the DC power supply is connected, the switch is turned on, the DC power supply is input to the charging board through the connector CN2, the negative pole is grounded, and the positive pole and the negative pole are connected through a voltage stabilizing diode and a resistor to stabilize the input voltage, and at the same time, the polar capacitor EC1 and the polar capacitor EC2 are charged, and the positive pole is rectified by the inductor to charge the polar capacitor EC3, the polar capacitor EC4, the capacitor C2, the capacitor C3, and the capacitor C4, and the chip U3 is powered, and the voltage is reduced to 3V through the chip U2 on the other side to charge the polar capacitor EC7, the capacitor C18, and the capacitor C25, and the chip GNDPAD and the operational amplifier U1 are powered. The input terminal VIN and the output terminal VOUT are connected through MOS tubes Q3 and MOS tubes Q8. When there is no external voltage input, the MOS tube is turned off, and the input terminal VIN and the output terminal VOUT are not conductive. When DC power is input, chip U3 receives the signal and transmits it to chip GNDPAD. Chip GNDPAD outputs a signal through pin 19, which is amplified by transistor Q6 to increase the gate voltage of MOS transistor Q3 and MOS transistor Q8. MOS transistor Q3 and MOS transistor Q8 are turned on, and the input terminal VIN is connected to the output terminal VOUT. At the same time, pins 14 and 13 of chip GNDPAD respectively output signals, which are amplified by transistors Q4 and Q5 to reduce the gate voltage of MOS transistor Q1 and MOS transistor Q2, making them non-conductive. At this time, the DC power supply supplies power to the external device.

[0043] The working principle of the charging circuit for charging the battery with a DC power supply is as follows: the DC power supply is input into the charging board through the connector CN2, the negative pole is grounded, the positive pole is rectified by the inductor, filtered by the capacitor, and connected to the port 1 of the connector CN3 through the MOS tube Q9, the MOS tube Q10 and the MOS tube Q11, and connected to the port 2 of the connector through the resistor R26, the capacitor and the polarity capacitor. The port 2 of the connector CN3 is grounded, and the connector CN3 is connected to the positive and negative poles of the battery. When DC power is input, chip U3 receives the signal and transmits it to chip GNDPAD, and outputs signals through pin 21 and pin 29 to increase the gate voltage of MOS tube Q10 and MOS tube Q11, making them conductive, and outputs signals through pin 23 and pin 27 to reduce the gate voltage of MOS tube Q14 and MOS tube Q13, making them conductive, and DC power charges polar capacitor EC5, polar capacitor EC6, capacitor 6, capacitor 7, and capacitor 8, and chip GNDPAD receives the signal and outputs the signal through pin 12, which is amplified by transistor Q12 to increase the gate voltage of MOS tube Q9, and MOS tube Q9 is conductive, and DC power starts to charge the battery. When the battery is fully charged, polarity capacitor EC5 and polarity capacitor EC6 feed back to chip U3, and chip U3 outputs signals through pins 23 and 27 to increase the gate voltage of MOS tube Q14 and MOS tube Q13, making them conductive. At this time, the potential at both ends of the battery drops to 0, and polarity capacitor EC3 and polarity capacitor EC4 feed back signals to chip U3, and chip U3 outputs signals through pins 21 and 29 to reduce the gate voltage of MOS tube Q14 and MOS tube Q13, making them conductive. There is no conduction between the DC power supply and the battery, and charging stops.

[0044] The working principle of the battery power supply circuit is: turn on the switch, capacitor C18 and capacitor C25 supply power to chip GNDPAD, polar capacitor EC7 transmits the voltage change to chip GNDPAD through pin 15, and chip GNDPAD transmits the signal to chip U3. At the same time, capacitor C2, capacitor C3 and capacitor 4 supply power to chip U3, and polar capacitor EC3 and polar capacitor EC4 transmit the voltage change to chip U3. After receiving the signal, chip GNDPAD outputs the signal through pin 13 and pin 14 respectively, and after amplification by triode Q4 and triode Q5, the gate voltage of MOS tube Q1 and MOS tube Q2 is increased, and MOS tube Q1 and MOS tube Q2 are turned on, and the signal output through pin 19 is amplified by triode Q6, so that the gate voltage of MOS tube Q3 and MOS tube Q8 is increased, and MOS tube Q3 and MOS tube Q8 are turned on. After receiving the signal, chip U3 outputs the signal through pin 21 and pin 29 respectively to reduce the gate voltage of MOS tube Q10 and MOS tube Q11, so that it is turned off. At this point, the battery starts to power external devices and the entire circuit.

[0045] The working principle of the switching circuit for switching between DC power supply and battery power supply: turn on the switch. When there is external DC input, chip U2 converts the input voltage into a 3V voltage to power chip GNDPAD and charge capacitor C18, capacitor C25, and polarity capacitor EC7. Chip GNDPAD receives the signal and increases the gate voltage of MOS tube Q3 and MOS tube Q8 through pin 19 through transistor Q6 to turn them on. At the same time, it reduces the gate voltage of MOS tube Q2 and MOS tube Q1 through pin 13 and pin 14 through transistor Q5 and transistor Q4 to make them not on. When the external DC input is turned on, the DC power supply supplies power to the external device and the entire circuit; when the external DC input is disconnected, capacitors C18, C25 and polarity capacitor EC7 supply power to the chip GNDPAD. The chip GNDPAD receives the signal and increases the gate voltage of MOS tube Q3 and MOS tube Q8 through transistor Q6 via pin 19 to turn them on. At the same time, the gate voltage of MOS tube Q2 and MOS tube Q1 is increased through transistor Q5 and transistor Q4 via pins 13 and 14 to turn them on. At this time, the DC power supply supplies power to the external device and the entire circuit.

[0046] The working principle of the switch control circuit is: the switch connects the connector CN1 and the port 3 of the chip U2 through the interface 1 of the switch connector, and the interface 2 is grounded. When the switch is closed, the potential of the output end of the battery that supplies power to the outside and the port 3 of the chip U2 that supplies power to the chip GNDPAD drops to 0. At this time, the chip GNDPAD cannot work and the circuit is not conducting. When the switch is reopened, the chip GNDPAD resumes power supply and the circuit restarts.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multifunctional energy storage TV with automatic switching, characterized in that: It includes a charging board, a connector CN1, a connector CN2, a connector CN3, a connector CN4 and an output part. The DC power supply is connected to the input end of the charging board through the connector CN2, the switch is connected to the input end of the charging board through the connector CN4, the battery is connected to the charging board through the connector CN1, and the output part is connected to the output end of the charging board through the connector CN1. The output part includes a wide-voltage chip, a display backlight driver module, a TV mainboard chip, a speaker connector, a speaker and an external device. The input end of the connector CN1 is electrically connected to the charging board, and the output end is connected to the input end of the wide-voltage chip. The output end of the wide-voltage chip is connected to the input end of the TV mainboard chip and the display backlight driver module. One of the output ends of the TV mainboard chip is connected to the speaker through a speaker connector, and the other output end is connected to an external device through a USB interface.

2. The multifunctional energy storage TV with automatic switching according to claim 1, characterized in that: The charging board is provided with an external DC power supply circuit; a charging circuit for charging the battery with a DC power supply; a battery power supply circuit for supplying power to the charging board; and a switch control circuit for controlling the power supply of the entire circuit.

3. The multifunctional energy storage TV with automatic switching according to claim 2, characterized in that: The DC power supply circuit is specifically as follows: interface 1 and interface 2 of connector CN1 are connected to the ground in parallel; polar capacitor EC1 and polar capacitor EC2 are connected in parallel between interface 3 and interface 4 of connector CN1 and the ground; inductor L1 is connected to interface 3, interface 4 of connector CN1 and the drain of MOS tube Q3; one end of resistor R3 is connected to the source of MOS tube Q1 and the drain of MOS tube Q3, and the other end is connected to pin 18 of chip GNDPAD; resistor R2 and Zener diode ZD2 are connected in parallel to the source of MOS tube Q1. The anode of the diode D1 is connected to the drain of the MOS tube Q1 and the drain of the MOS tube Q2, and the cathode is connected to the source of the MOS tube Q2 and the interface 1 of the connector CN3; the resistor R1 and the Zener diode ZD1 are connected in parallel between the gate and the source of the MOS tube Q2, and the source of the MOS tube Q2 is connected to the interface 1 of the connector CN3; the resistor R10 and the Zener diode ZD3 are connected in parallel, and the anode of the Zener diode ZD3 is connected to one end of the resistor R7, the gate of the MOS tube Q3 and the gate of the MOS tube Q8, The cathode is connected to the source of the MOS tube Q3 and the source of the MOS tube Q8; the other end of the resistor R7 is connected between the anode of the Zener diode ZD3 and the collector of the transistor Q6; the resistor R11 is connected between the base of the transistor Q6 and the pin 19 of the chip GNDPAD; the resistor R14 is connected between the base of the transistor Q6 and the emitter of the transistor Q6, and the emitter of the transistor Q6 is grounded; the resistor R6 and the capacitor C1 are connected in parallel between the pin 18 of the chip GNDPAD and the ground; the resistor R4 is connected between the MOS tube between the gate of Q1 and the collector of transistor Q4; resistor R8 is connected between the base of transistor Q4 and pin 14 of chip GNDPAD; resistor R12 is connected between the base of transistor Q4 and ground, and the emitter of transistor Q4 is grounded; resistor R5 is connected between the gate of MOS tube Q2 and the collector of transistor Q5; resistor R9 is connected between the base of transistor Q5 and pin 13 of chip GNDPAD; resistor R13 is connected between the base of transistor Q4 and ground, and the emitter of transistor Q4 is grounded.

4. The multifunctional energy storage TV with automatic switching according to claim 3, characterized in that: The charging circuit is specifically as follows: the drain of the MOS tube Q7 is connected to the interface 3 of the connector CN2, the source is grounded, and a diode is connected in parallel between the source and drain of the MOS tube Q7; the Zener diode ZD4 and the resistor R15 are connected in parallel between the source of the MOS tube Q7 and the gate of the MOS tube Q7; the resistor R16 is connected between the gate of the MOS tube Q7 and the drain of the MOS tube Q8, and the drain of the MOS tube Q8 is connected to the interface 1 of the connector CN2; the resistor R22 is connected between the drain of the MOS tube Q8 and the pin 20 of the chip GNDPAD; the resistor R28 and the capacitor C5 are connected in parallel between the pin 20 of the chip GNDPAD and the ground; the resistor R19 is connected between the drain of the MOS tube Q8 and the port 3 of the operational amplifier; the resistor R24 ​​is connected Between port 3 of the operational amplifier and ground; one end of the inductor L2 is connected to interface 1 of connector CN2, the drain of MOS tube Q8, resistor R16, one end of resistor R22 and resistor R19, and the other end is connected to the positive electrodes of polar capacitor EC3 and polar capacitor EC4, capacitor C2, capacitor C3, capacitor C4, resistor R20, resistor R18, resistor R39, resistor R43, resistor R45 and one end of resistor R38; polar capacitor EC3, polar capacitor EC4, capacitor C2, capacitor C3, capacitor C4, resistor R20, resistor R43 are connected in parallel between one end of the inductor L2 and ground; resistor R18 is connected between the inductor L2 and the drain of MOS tube Q11, and between the source of MOS tube Q11 and the drain of MOS tube Q11 A diode is connected in parallel; both ends of the resistor R39 are short-circuited, connecting the inductor L2, the resistor R18, the resistor R43 and one end of the resistor R45; the other end of the resistor R45 is connected between the pin 31 of the chip U3 and the inductor L2; the resistor R38 is connected between the pin 1 of the chip U3 and the inductor L2; the resistor R40 is connected between the pin 32 of the chip U3 and the drain of the MOS tube Q11; the capacitor C12 is connected between the pin 1 and the pin 32 of the chip U3; the resistor R25 is connected between the pin 29 of the chip U3 and the gate of the MOS tube Q11; one end of the inductor L3 is connected to the pin 28 of the chip U3, the capacitor C9, the capacitor C14, the source of the MOS tube Q11, and the drain of the MOS tube Q13, and the two ends of the inductor L3 are connected to the chip U3 Pin 22 of chip U3, capacitor C10, capacitor C20, source of MOS tube Q10 and drain of MOS tube Q14; capacitor C13 is connected between pin 28 and pin 30 of U3; resistor R34 is connected between pin 27 of chip U3 and gate of MOS tube Q13, source of MOS tube Q13 is grounded, and a diode is connected in parallel between source and drain of MOS tube Q13; capacitor C9 and resistor R31 are connected in series between drain of MOS tube Q13 and ground; capacitor C10 and resistor R32 are connected in series between drain of MOS tube Q14 and ground; resistor R23 is connected between pin 21 of chip U3 and gate of MOS tube Q10; resistor R33 is connected between pin 23 of chip U3 and gate of MOS tube Q14;One end of the resistor R17 is connected to the drain of the MOS tube Q10 and one end of the resistor R49, and the other end is connected to the resistor R50, the resistor R51, the cathode of the diode D9, the anode of the diode D2, the drain of the MOS tube Q9, the resistor R26, the positive electrode of the polar capacitor EC5, the positive electrode of the polar capacitor EC6, the capacitor C6, the capacitor C7, and the capacitor C8; the resistor R26, the positive electrode of the polar capacitor EC5, the positive electrode of the polar capacitor EC6, the capacitor C6, the capacitor C7, and the capacitor C8 are connected in parallel between the drain of the MOS tube Q9 and the interface 2 of the connector CN3, and the interface 2 of the connector CN3 is grounded; the diode D2 is connected in parallel between the drain and the source of the MOS tube Q9; the Zener diode ZD5 and the resistor R21 are connected in parallel between the gate and the source of the MOS tube Q9, and the source of the MOS tube Q9 is connected to the interface 1 of the connector CN3, and the connector CN3 is used to connect the battery. ; 5. The multifunctional energy storage TV with automatic switching according to claim 2, characterized in that: The battery power supply circuit is specifically as follows: resistor R27 is connected between the gate of MOS tube Q9 and the collector of transistor Q12, and the emitter of transistor Q12 is grounded; resistor R29 is connected between pin 12 of chip GNDPAD and the base of transistor Q12; resistor R30 is connected between the base of transistor Q12 and ground; capacitor C14 is connected between pin 28 and pin 30 of chip U3; the cathode of diode D5 is connected to pin 30 of chip U3 and capacitor C14, and the anode is connected to pin 24 of U3, pin 25 of U3, capacitor C15, capacitor C16, and the anode of diode D7; capacitor C15 and capacitor C16 are connected in parallel, one end of which is connected to pin 26 of U3 and ground, and the other end is connected to pin 24 of chip U3. , pin 25 of chip U3, the anode of diode D5 and the anode of diode D7; the anode of diode D7 is connected to pin 24 of chip U3 and pin 25 of chip U3, and the cathode is connected to pin 20 of chip U3 and capacitor C20; capacitor C20 is connected between pin 20 of chip U3 and pin 22 of chip U3; the other end of resistor R49 is connected between pin 18 of chip U3 and the drain of MOS tube Q10; resistor R50 is connected between pin 17 of chip U3 and the drain of MOS tube Q9; capacitor C22 is connected between pin 17 of chip U3 and pin 18 of chip U3; resistor R51 is connected between pin 19 of chip U3 and the drain of MOS tube Q9; resistor R54 and resistor R55 are connected in parallel. Between pin 19 of chip U3 and pin 16 of chip U3; capacitor C23 is connected between pin 19 of chip U3 and ground; pin 33 of chip U3 is grounded; resistor R62 and resistor R64 are connected in series between pin 16 of chip U3 and ground; resistor R61 and capacitor C24 are connected in series between pin 16 of chip U3 and ground; pin 12 of chip U3 is grounded; pin 13 of chip U3, pin 3 of chip U3, pin 6 of chip U3, pin 5 of chip U3, and pin 2 of chip U3 are connected; the cathode of diode D9 is connected to the drain of MOS tube Q9, and the anode is connected to pin 7 of chip U3 and resistor R63; resistor R63 is connected between pin 7 of chip U3 and pin 11 of chip GNDPAD; resistor R6 5 is connected between pin 11 of chip GNDPAD and ground; resistor R60 is connected between pin 8 of chip U3 and pin 10 of chip GNDPAD; resistor R59 is connected between pin 10 of chip U3 and pin 16 of chip GNDPAD; resistor R58 is connected between pin 9 of chip U3 and pin 17 of chip GNDPAD; one end of resistor R57 is connected between pin 10 of chip U3 and pin 16 of chip GNDPAD, and the other end is connected between resistor R58 and port 3 of chip U2; one end of resistor R58 is connected between pin 9 of chip U3 and pin 17 of chip GNDPAD, and the other end is connected between resistor R57 and port 3 of chip U2; capacitor C21 is connected between pin 4 of chip U3 and ground;One end of capacitor 25 is connected to pin 6 of chip GNDPAD and port 3 of chip U2, and the other end is grounded; pin 4 of chip GNDPAD is grounded; capacitor C26 is connected between pin 2 of chip GNDPAD and ground; capacitor C27 is connected between pin 3 of chip GNDPAD and ground; end 1 of crystal oscillator Y1 is connected to pin 2 of chip GNDPAD, end 3 is connected to pin 3 of chip GNDPAD, and ends 2 and 4 are grounded; pin 21 of chip GNDPAD is grounded; capacitor C11 is connected between port 5 of operational amplifier U1 and ground, port 5 of operational amplifier U1 is connected to port 3 of chip U2, and port 2 of operational amplifier U1 is grounded; resistor R35 is connected between port 4 of operational amplifier U1 and chip GNDPAD. AD pin 5; capacitor C12 is connected between pin 5 of chip GNDPAD and ground; resistor R41 is connected between port 1 of operational amplifier U1 and ground; one end of resistor R44 is connected between port 1 of operational amplifier U1 and resistor R41, and the other end is connected between port 3 of chip U2, the positive electrode of polar capacitor EC7, and capacitor C18; polar capacitor EC7 and capacitor C18 are connected in parallel between port 3 of chip U2 and ground; resistor R46 is connected between pin 9 of chip GNDPAD and port 3 of chip U2; resistor R47 and thermistor RT1 are connected in series and then connected in parallel with capacitor C19 between pin 9 of chip GNDPAD and ground; resistor R36 is connected between pin 15 of chip GNDPAD and port 2 of chip U2. ; 6. The multifunctional energy storage TV with automatic switching according to claim 2, characterized in that: The switch control circuit is specifically as follows: a diode D4 and a resistor R37 are connected in series between the gate of the MOS tube Q15 and the interface 1 of the connector CN4, the cathode of the diode D4 is connected to the interface 2 of the connector CN4, the interface 2 of the connector CN4 is grounded, and the connector CN4 is used to connect the switch; The anode of the diode D3 is connected to pin 15 of the chip GNDPAD, and the cathode is connected to interface 1 of the connector CN4; the resistor R42 is connected between the gate and source of the MOS tube Q15, and the source of the MOS tube Q15 is connected to interface 1 of the connector CN3; the diode D6 is connected in series with the capacitor C17, the anode is connected to the drain of the MOS tube Q15, the cathode is connected to one end of the capacitor C17, and the other end of the capacitor C17 is grounded; the anode of the diode D8 is connected to interface 1 of the connector CN2, and the cathode is connected to port 2 of the chip U2; the resistor R48 and the light-emitting diode LED1 are connected in series between port 2 of the chip U2 and the ground, and the cathode of the light-emitting diode LED1 is grounded.

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