A pseudo-candlelight response circuit based on magnetic field induction

Abstract

The utility model relates to the technical field of quasi-candlelight, disclose a kind of quasi-candlelight response circuit based on magnetic field induction, it includes: charging protection circuit, battery module, boost circuit, MCU control circuit, signal detection circuit and lamp control circuit, the output end of charging protection circuit connects the one port of battery module, the one port of battery module connects the power input end of boost circuit, the power output end of boost circuit is connected respectively the power input end of MCU control circuit, the power input end of signal detection circuit and the power input end of lamp control circuit, the signal control end of MCU control circuit connects the signal control end of signal detection circuit, the lamp control end of MCU control circuit connects the lamp control end of lamp control circuit;The circuit contains antenna, forms built-in induction coil, can monitor surrounding environment magnetic field change in real time, once detecting surrounding magnetic field change, electronic candle will automatically light candlelight, there is also on the basis of candle lighting increase color light.

Description

Technical Field

[0001] This utility model relates to the field of simulated candlelight technology, specifically to a simulated candlelight response circuit based on magnetic field induction. Background Technology

[0002] Electronic candle lights are simulation lighting devices based on LED technology, simulating the burning effect of traditional candles through built-in light-emitting elements and dynamic mechanical structures. Emerging in the early 2000s, this product has undergone iterations from basic light effect simulation to integrated dynamic swaying functions, reaching its fourth and fifth generations by 2025. Its core features include flameless safety, reusability and environmental friendliness, and highly realistic candlelight effects, making it widely used in wedding decorations, holiday displays, and other scenarios. With the expansion of cross-border e-commerce channels, this category is gradually extending towards personalization and gift-giving, becoming an important sub-category in the modern decorative lighting field. However, current electronic candle lights on the market cannot respond to changes in the ambient magnetic field, generally remaining static; furthermore, the colors of most candle lights are limited, primarily based on flame color, failing to meet the needs of various occasions; and there are also issues such as the inability of traditional electronic candles to respond to changes in the ambient magnetic field, the lack of immersive visual feedback in existing detection equipment, and the overly mechanical and unnatural on / off switching of ordinary LED candles.

[0003] Therefore, existing simulated candlelight technology needs further improvement to address the above issues. Utility Model Content

[0004] The purpose of this invention is to provide a method that links traditional electronic candles with changes in the ambient magnetic field. This is achieved by employing a charging protection circuit, a battery module, a boost circuit, an MCU control circuit, a signal detection circuit, and a lighting control circuit. This circuit contains an antenna, forming a built-in induction coil. It captures alternating magnetic fields through the principle of electromagnetic induction and monitors changes in the surrounding magnetic field in real time. Once a change in the surrounding magnetic field is detected, the electronic candle will automatically light up with a warm yellow light, providing a tactile and visual experience similar to traditional candles and dynamic candlelight. It also adds colored lights to the yellow light emitted by the candle.

[0005] The specific technical solution of this utility model is as follows: A simulated candlelight response circuit based on magnetic field induction, comprising: a charging protection circuit, a battery module, a boost circuit, an MCU control circuit, a signal detection circuit, and a lighting control circuit. The power input terminal of the charging protection circuit is electrically connected to an external power source, and the power output terminal of the charging protection circuit is electrically connected to one port of the battery module. One port of the battery module is electrically connected to the power input terminal of the boost circuit. The power output terminal of the boost circuit is electrically connected to the power input terminals of the MCU control circuit, the signal detection circuit, and the lighting control circuit, respectively. The signal control terminal of the MCU control circuit is electrically connected to the signal control terminal of the signal detection circuit, and the lighting control terminal of the MCU control circuit is electrically connected to the lighting control terminal of the lighting control circuit. The lighting control circuit includes a colored light control circuit and a candle light control circuit. The power input terminals of the colored light control circuit and the candle light control circuit are respectively electrically connected to the power output terminal of the boost circuit. The lighting control terminals of the colored light control circuit and the candle light control circuit are respectively electrically connected to the lighting control terminal of the MCU control circuit.

[0006] Furthermore, the charging protection circuit includes a monitoring circuit and a protection circuit. The power input terminal of the monitoring circuit is electrically connected to an external power source, the power output terminal of the monitoring circuit is electrically connected to the power input terminal of the protection circuit, and the power output terminal of the monitoring circuit is electrically connected to one port of the battery module.

[0007] Furthermore, the monitoring circuit includes a USB interface, resistor R5, capacitor C7, resistor R22, chip U2, resistor R21, capacitor C6, resistor R25, LED1, and LED2. Terminals "1" and "6" of the USB interface are grounded together. Terminals "2" and "5" of the USB interface are connected to one end of resistor R5. The other end of resistor R5 is electrically connected to one end of capacitor C7, one end of resistor R21, one end of resistor R25, and terminal "4" of chip U2. The other end of capacitor C7 is grounded, and the other end of resistor R21... The chip U2 is electrically connected to terminal 8. The other end of the resistor R25 is electrically connected to the positive terminals of LED1 and LED2. The negative terminal of LED1 is electrically connected to terminal 7 of the chip U2. The negative terminal of LED2 is electrically connected to terminal 6 of the chip U2. Terminal 2 of the chip U2 is electrically connected to one end of the resistor R22. The other end of the resistor R22 and terminal 3 of the chip U2 are grounded together. Terminal 5 of the chip U2 is electrically connected to one end of the capacitor C6 and the power input terminal of the protection circuit. The other end of the capacitor C6 is grounded.

[0008] Furthermore, the protection circuit includes a resistor R30, a chip U3, a capacitor C8, and a resistor R31. One end of the resistor R31 is electrically connected to terminal "5" of the chip U2, and the other end of the resistor R31 is electrically connected to one end of the capacitor C8 and terminal "5" of the chip U3. Terminal "1" of the chip U3 is electrically connected to one end of the resistor R30, and the other end of the resistor R30 and terminal "2" of the chip U3 are grounded together. Terminal "3" of the chip U3 is electrically connected to terminal "6" of the chip U3 and the other end of the capacitor C8.

[0009] Furthermore, the boost circuit includes a chip U5, a parallel input capacitor, an inductor L1, a diode D1, a resistor R14, a resistor R15, and a parallel output capacitor. Terminal "1" of the chip U5 is electrically connected to one end of the inductor L1 and the positive terminal of the diode D1. The negative terminal of the diode D1, one end of the resistor R14, and one end of the parallel output capacitor are all connected to the power output terminal of the boost circuit. The other end of the parallel output capacitor is grounded. The other end of the resistor R14 is electrically connected to terminal "3" of the chip U5 and one end of the resistor R15. The other end of the resistor R15 is grounded. Terminals "4" and "5" of the chip U5 are all connected to the other end of the inductor L1, one end of the parallel input capacitor, and one port of the battery module. Terminal "2" of the chip U5 is grounded. The other end of the parallel input capacitor is also grounded.

[0010] Furthermore, the parallel input capacitors include capacitors C14 and C13, which are connected in parallel. This parallel input capacitor configuration can reduce equivalent resistance, reduce energy consumption, reduce ripple in the input power supply, and allow the other capacitor to continue operating normally to compensate for a failed capacitor.

[0011] Furthermore, the parallel output capacitor includes capacitor C11 and capacitor C12, which are connected in parallel. This parallel output capacitor configuration can reduce equivalent resistance, reduce energy consumption, reduce ripple in the output power supply, allow one capacitor to compensate for a failure by having the other continue operating normally, and distribute the load of the output voltage and current more evenly, resulting in a more stable output voltage.

[0012] Further, the color light control circuit includes NPN transistors Q3, Q9, Q8, Q4, and Q5; resistors R11, R33, R11, R32, R21, R22, R7, R25, R3, R8, and R4; LED-R, LED-G, LED-Y, LED-W, and LED-B. The emitters of NPN transistors Q3, Q9, Q8, Q4, and Q5 are all grounded. The collector of NPN transistor Q3 is connected to the negative terminal of LED-R through resistor R7; the collector of NPN transistor Q9 is connected to the negative terminal of LED-G through resistor R25; and the collector of NPN transistor Q8 is connected to the negative terminal of LED-Y through resistor R3. The collector of NPN transistor Q4 is connected to the negative terminal of LED-W through resistor R8. The collector of NPN transistor Q5 is connected to the negative terminal of LED-B through resistor R4. The positive terminals of LED-R, LED-G, LED-Y, LED-W, and LED-B are electrically connected to the power output terminal of the boost circuit. The base of NPN transistor Q3 is connected to the R terminal of the MCU control circuit through resistor R11. The base of NPN transistor Q9 is connected to the G terminal of the MCU control circuit through resistor R33. The base of NPN transistor Q8 is connected to the Y terminal of the MCU control circuit through resistor R32. The base of NPN transistor Q4 is connected to the W terminal of the MCU control circuit through resistor R21. The base of NPN transistor Q5 is connected to the B terminal of the MCU control circuit through resistor R22.

[0013] Furthermore, the LED-R includes LED2, LED12 and LED7, which are connected in parallel.

[0014] Furthermore, the LED-G includes LED10, LED15 and LED5, which are connected in parallel.

[0015] Furthermore, the LED-Y includes LED11, LED1 and LED6, which are connected in parallel.

[0016] Furthermore, the LED-W includes LED13, LED3 and LED8, which are connected in parallel.

[0017] Furthermore, the LED-B includes LED14, LED4 and LED9, which are connected in parallel.

[0018] Furthermore, the candle lamp control circuit includes a lamp control circuit and a sound control circuit. The power input terminal of the lamp control circuit is electrically connected to the power output terminal of the boost circuit, the power input terminal of the sound control circuit is electrically connected to the power output terminal of the boost circuit, and the lamp control terminal of the lamp control circuit and the lamp control terminal of the sound control circuit are respectively electrically connected to the lamp control terminal of the MCU control circuit.

[0019] Furthermore, the lighting control circuit includes LED4, resistor R37, NPN transistor Q1, and resistor R9. The positive terminal of LED4 is electrically connected to the power output terminal of the boost circuit, the negative terminal of LED4 is electrically connected to one end of resistor R37, the other end of resistor R37 is electrically connected to the collector of NPN transistor Q1, the emitter of NPN transistor Q1 is grounded, the base of NPN transistor Q1 is electrically connected to one end of resistor R9, and the other end of resistor R9 is electrically connected to the lighting control terminal of the MCU control circuit.

[0020] Furthermore, the sound control circuit includes a resistor R17, an NPN transistor Q2, a resistor R10, and a buzzer B2. One end of the buzzer B2 and one end of the resistor R17 are connected to the power output terminal of the boost circuit. The other end of the buzzer B2 and the other end of the resistor R17 are connected to the collector of the NPN transistor Q2. The emitter of the NPN transistor Q2 is grounded, and the base of the NPN transistor Q2 is electrically connected to the lamp control terminal of the MCU control circuit through the resistor R10.

[0021] Furthermore, the signal detection circuit includes an antenna ANT, a chip U4, capacitors C1, C3, and C2, and resistors R2 and R1. Terminal "1" of chip U4 is grounded together with one end of capacitor C1. Terminal "2" of chip U4 is electrically connected to the antenna ANT. Terminal "3" of chip U4 is electrically connected to the signal control terminal of the MCU control circuit. Terminal "4" of chip U4 is electrically connected to one end of capacitor C3, and the other end of capacitor C3 is grounded. Terminal "5" of chip U4 is electrically connected to one end of capacitor C2, and the other end of capacitor C2 is grounded. Terminal "6" of chip U4 is electrically connected to one end of resistor R2 and terminal "2" of chip U4. The other end of resistor R2 is electrically connected to one end of resistor R1 and terminal "7" of chip U4. The other end of resistor R1 is electrically connected to the power output terminal of the boost circuit. Terminal "8" of chip U4 is electrically connected to the other end of capacitor C1 and the power output terminal of the boost circuit.

[0022] Further, the MCU control circuit includes chip U1, resistors R12 and RT1, capacitor C6, resistor R13, LED17, resistor R31, LED16, and resistor R30. Terminal "1" of chip U1 is grounded, terminal "28" of chip U1 is electrically connected to the power output terminal of the boost circuit, terminal "24" of chip U1 is electrically connected to one end of resistor R13, and the other end of resistor R13 is electrically connected to one end of capacitor C6, one end of resistor R12, and one end of resistor RT1. The other end of capacitor C6 and... The other end of resistor RT1 is grounded. The other end of resistor R12 is electrically connected to the power output terminal of the boost circuit. The terminal "20" of chip U1 is electrically connected to the positive terminal of LED17. The negative terminal of LED17 is electrically connected to one end of resistor R31. The other end of resistor R31 is electrically connected to the terminal "19" of chip U1. The terminal "15" of chip U1 is electrically connected to one end of resistor R30. The other end of resistor R30 is connected to the negative terminal of LED16. The positive terminal of LED16 is electrically connected to the power output terminal of the boost circuit.

[0023] Furthermore, the chip U2 is selected as the XC3101AT model. This XC3101A chip is a high-voltage linear charging management chip, capable of withstanding charger plug-and-play surges and voltage fluctuations from inferior adapters. It supports trickle charging, constant current charging, and constant voltage charging of a single lithium-ion battery. It has built-in thermal feedback to regulate current and prevent overheating derating; it can share voltage drop through an external resistor to reduce chip power consumption; and the charging management status can be observed by combining the operating status of LED1 and LED2.

[0024] Furthermore, the chip U3 is selected as the DW06D model chip. The DW06D chip is a lithium battery protection circuit chip that can prevent the risk of shortened battery life or explosion caused by overcharging / over-discharging. The XC3101AT chip is responsible for efficient charging control, and the DW06D chip provides abnormal state protection during the charging and discharging process. The two are connected in series to form a complete power supply solution.

[0025] Furthermore, the chip U5 is selected as the MT3608 model chip. The MT3608 chip is a high-efficiency boost converter that can boost the output power of the charging protection circuit to the power supply voltage required by the subsequent circuits.

[0026] Furthermore, the chip U1 is selected as the HT66F0185 chip, which is an 8-bit Flash microcontroller that supports multiple programming.

[0027] Furthermore, the chip U4 is selected as the NE555DR model chip. The NE555DR chip is a timer chip, which is connected to an antenna (ANT). The antenna (ANT) receives external signals and sets parameters such as the oscillation frequency through external resistors and capacitors. The "OUT" pin of the NE555DR chip outputs a corresponding pulse signal.

[0028] Furthermore, the battery module is selected from rechargeable batteries such as lithium batteries, lead-acid batteries, or sodium batteries.

[0029] Beneficial effects This invention provides a method to link a traditional electronic candle with changes in the ambient magnetic field. It employs a charging protection circuit, a battery module, a boost circuit, an MCU control circuit, a signal detection circuit, and a lighting control circuit. This circuit includes an antenna forming a built-in induction coil. Through electromagnetic induction, it captures alternating magnetic fields and monitors changes in the surrounding magnetic field in real time. Once a change in the ambient magnetic field is detected, the electronic candle automatically illuminates with a warm yellow light, providing a tactile and visual experience similar to traditional candles and dynamic candlelight. It also adds colored lights to the existing yellow candle light. The charging protection circuit protects the subsequent circuits from damage. The boost circuit provides a stable 5V power output to power the signal detection circuit, MCU control circuit, and lighting control circuit. The signal detection circuit uses electromagnetic induction from the antenna to link with the ambient magnetic field, which in turn allows the MCU control circuit to control the candle, colored lights, buzzer, and other components to operate as needed. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a simulated candlelight response circuit based on magnetic field induction according to this utility model.

[0031] Figure 2 This is a schematic diagram of the charging protection circuit principle of a simulated candlelight response circuit based on magnetic field induction according to this utility model.

[0032] Figure 3 This is a schematic diagram of the boost circuit principle of a simulated candlelight response circuit based on magnetic field induction according to this utility model.

[0033] Figure 4 This is a schematic diagram of the MCU control circuit principle of a simulated candlelight response circuit based on magnetic field induction according to this utility model.

[0034] Figure 5 This is a schematic diagram of the signal detection circuit principle of a simulated candle response circuit based on magnetic field induction according to this utility model.

[0035] Figure 6 This is a schematic diagram of the principle of a colored light control circuit based on a magnetic field induction-based simulated candlelight response circuit according to this utility model.

[0036] Figure 7 This is a schematic diagram of the principle of a candle lamp control circuit based on a magnetic field induction-based simulated candle light response circuit according to this utility model.

[0037] Figure descriptions: 01. Charging protection circuit; 02. Boost circuit; 03. MCU control circuit; 04. Signal detection circuit; 05. Lighting control circuit; 06. Battery module. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] See Figure 1 As shown, this utility model provides a simulated candlelight response circuit based on magnetic field induction. The simulated candlelight response circuit includes: a charging protection circuit 01, a battery module 06, a boost circuit 02, an MCU control circuit 03, a signal detection circuit 04, and a lamp control circuit 05. The power input terminal of the charging protection circuit 01 is electrically connected to an external power source, and the power output terminal of the charging protection circuit 01 is electrically connected to one port of the battery module 06. One port of the battery module 06 is electrically connected to the power input terminal of the boost circuit 02. The power output terminal of the boost circuit 02 is electrically connected to the power input terminals of the MCU control circuit 03, the signal detection circuit 04, and the lamp control circuit 05, respectively. The signal control terminal of the MCU control circuit 03 is electrically connected to the signal control terminal of the signal detection circuit 04, and the lamp control terminal of the MCU control circuit 03 is electrically connected to the lamp control terminal of the lamp control circuit 05. The lighting control circuit 05 includes a colored light control circuit and a candle light control circuit. The power input terminals of the colored light control circuit and the candle light control circuit are electrically connected to the power output terminals of the boost circuit 02, and the lighting control terminals of the colored light control circuit and the candle light control circuit are electrically connected to the lighting control terminals of the MCU control circuit 03. The charging protection circuit includes a monitoring circuit and a protection circuit. The power input terminal of the monitoring circuit is electrically connected to an external power source, the power output terminal of the monitoring circuit is electrically connected to the power input terminal of the protection circuit, and the power output terminal of the monitoring circuit is electrically connected to one port of the battery module 06. The candle lamp control circuit includes a lamp control circuit and a sound control circuit. The power input terminal of the lamp control circuit is electrically connected to the power output terminal of the boost circuit, the power input terminal of the sound control circuit is electrically connected to the power output terminal of the boost circuit, and the lamp control terminal of the lamp control circuit and the lamp control terminal of the sound control circuit are respectively electrically connected to the lamp control terminal of the MCU control circuit. Among them, see Figures 2-7 As shown, the charging protection circuit 01 includes a USB interface, resistor R5, capacitor C7, resistor R22, chip U2, resistor R21, capacitor C6, resistor R25, LED1, LED2, resistor R30, chip U3, capacitor C8, and resistor R31; the boost circuit 02 includes chip U5, capacitor C14, capacitor C13, inductor L1, diode D1, resistor R14, resistor R15, capacitor C11, and capacitor C12; the MCU control circuit 03 includes chip U1, resistor R12, resistor R15, and resistor R21. RT1, capacitor C6, resistor R13, LED17, resistor R31, LED16, and resistor R30; the signal detection circuit 04 includes antenna ANT, chip U4, capacitors C1, C3, and C2, resistors R2 and R1; the colored light control circuit includes NPN transistors Q3, Q9, Q8, Q4, and Q5, resistors R11, R33, R11, R32, R21, R22, R7, and R25. The circuit includes resistors R3, R8, and R4, LED-R, LED-G, LED-Y, LED-W, and LED-B. LED-R comprises LED2, LED12, and LED7, which are connected in parallel. LED-G comprises LED10, LED15, and LED5, which are connected in parallel. LED-Y comprises LED11, LED1, and LED6, which are connected in parallel. LED-W comprises LED13, LED3, and LED8, which are connected in parallel. LED-B comprises LED14, LED4, and LED9, which are connected in parallel. The candle lamp control circuit includes LED4, resistor R37, NPN transistor Q1, resistor R9, resistor R17, NPN transistor Q2, resistor R10, and buzzer B2. The battery module uses a lithium-ion battery. Among them, see Figure 2As shown, in the charging protection circuit 01, USB interface terminals "1" and "6" are grounded together. USB interface terminals "2" and "5" are connected to one end of resistor R5. The other end of resistor R5 is electrically connected to one end of capacitor C7, one end of resistor R21, one end of resistor R25, and terminal "4" of chip U2. The other end of capacitor C7 is grounded. The other end of resistor R21 is electrically connected to terminal "8" of chip U2. The other end of resistor R25 is electrically connected to the positive terminals of LED1 and LED2. The negative terminal of LED1 is electrically connected to terminal "7" of chip U2. The negative terminal of LED2 is electrically connected to terminal "6" of chip U2. Terminal "2" of chip U2 is electrically connected to resistor R2. 2. One end of resistor R22 and the other end of chip U2 "3" are grounded together. The 5th end of chip U2 is electrically connected to one end of capacitor C6 and one end of resistor R31. The other end of capacitor C6 is grounded. The other end of resistor R31 is electrically connected to one end of capacitor C8 and the 5th end of chip U3. The 1st end of chip U3 is electrically connected to one end of resistor R30. The other end of resistor R30 and the 2nd end of chip U3 are grounded together. The 3rd end of chip U3 is electrically connected to the 6th end of chip U3 and the other end of capacitor C8. Among them, the 5th end of chip U2 is electrically connected to one port of lithium battery. One port of lithium battery is electrically connected to one end of capacitor C14 of boost circuit. Among them, see Figure 3 As shown, in the boost circuit 02, the terminal of chip U5 "1" is electrically connected to one end of inductor L1 and the positive terminal of diode D1. The negative terminal of diode D1, one end of resistor R14, one end of capacitor C11, and one end of capacitor C12 are all connected to the power output terminal of boost circuit 02. The other end of capacitor C11 and the other end of capacitor C12 are grounded together. The other end of resistor R14 is electrically connected to the terminal of chip U5 "3" and one end of resistor R15. The other end of resistor R15 is grounded. The terminals of chip U5 "4" and "5" are all connected to the other end of inductor L1, one end of capacitor C13, one end of capacitor C14, and the terminal of chip U2 "5" of charging protection circuit 01. The terminal of chip U5 "2" is grounded. The other end of capacitor C13 and the other end of capacitor C14 are grounded together. Among them, see Figure 4As shown, in the MCU control circuit 03, chip U1 "1" terminal is grounded, chip U1 "28" terminal is electrically connected to the negative terminal of diode D1 in boost circuit 02, chip U1 "24" terminal is electrically connected to one end of resistor R13, the other end of resistor R13 is electrically connected to one end of capacitor C6, one end of resistor R12 and one end of resistor RT1, the other end of capacitor C6 and the other end of resistor RT1 are grounded together, the other end of resistor R12 is electrically connected to the power output terminal of boost circuit 02, chip U1 "20" terminal is electrically connected to the positive terminal of LED17, LED17 negative terminal is electrically connected to one end of resistor R31, the other end of resistor R31 is electrically connected to chip U1 "19" terminal, and chip U1 "15" terminal is electrically connected to... Connect one end of resistor R30, and connect the other end of resistor R30 to the negative terminal of LED16. Connect the positive terminal of LED16 to the negative terminal of diode D1 in boost circuit 02. Connect terminal 2 of chip U1 to the other end of resistor R11. Connect terminal 6 of chip U1 to the other end of resistor R33. Connect terminal 7 of chip U1 to the other end of resistor R32. Connect terminal 16 of chip U1 to the other end of resistor R9. Connect terminal 17 of chip U1 to the other end of resistor R10. Connect terminal 21 of chip U1 to the other end of resistor R21. Connect terminal 23 of chip U1 to the other end of resistor R22. Connect terminal 25 of chip U1 to terminal 3 of chip U4. Among them, see Figure 5 As shown, the signal detection circuit 04 includes an antenna ANT, a chip U4, capacitors C1, C3, and C2, resistors R2 and R1. Terminal "1" of chip U4 is grounded together with one end of capacitor C1. Terminal "2" of chip U4 is electrically connected to the antenna ANT. Terminal "3" of chip U4 is electrically connected to the signal control terminal of the MCU control circuit 03. Terminal "4" of chip U4 is electrically connected to one end of capacitor C3, and the other end of capacitor C3 is grounded. Terminal "5" of chip U4 is electrically connected to one end of capacitor C2, and the other end of capacitor C2 is grounded. Terminal "6" of chip U4 is electrically connected to one end of resistor R2 and terminal "2" of chip U4. The other end of resistor R2 is electrically connected to one end of resistor R1 and terminal "7" of chip U4. The other end of resistor R1 is electrically connected to the power output terminal of the boost circuit 02. Terminal "8" of chip U4 is electrically connected to the other end of capacitor C1 and the power output terminal of the boost circuit 02. Among them, see Figure 6As shown, in this color light control circuit, the emitters of NPN transistors Q3, Q9, Q8, Q4, and Q5 are all grounded. The collector of NPN transistor Q3 is connected to the negative terminal of LED-R through resistor R7; the collector of NPN transistor Q9 is connected to the negative terminal of LED-G through resistor R25; the collector of NPN transistor Q8 is connected to the negative terminal of LED-Y through resistor R3; the collector of NPN transistor Q4 is connected to the negative terminal of LED-W through resistor R8; and the collector of NPN transistor Q5 is connected to the negative terminal of LED-B through resistor R4. The positive terminal of LED-R is... The positive terminals of LED-G, LED-Y, LED-W, and LED-B are electrically connected to the power output terminal of the boost circuit 02. The base of NPN transistor Q3 is connected to the R terminal of MCU control circuit 03 through resistor R11. The base of NPN transistor Q9 is connected to the G terminal of MCU control circuit 03 through resistor R33. The base of NPN transistor Q8 is connected to the Y terminal of MCU control circuit 03 through resistor R32. The base of NPN transistor Q4 is connected to the W terminal of MCU control circuit 03 through resistor R21. The base of NPN transistor Q5 is connected to the B terminal of MCU control circuit 03 through resistor R22. Among them, see Figure 7 As shown, in this candle lamp control circuit, the positive terminal of LED4 is electrically connected to the power output terminal of the boost circuit 02, the negative terminal of LED4 is electrically connected to one end of resistor R37, the other end of resistor R37 is electrically connected to the collector of NPN transistor Q1, the emitter of NPN transistor Q1 is grounded, the base of NPN transistor Q1 is electrically connected to one end of resistor R9, the other end of resistor R9 is electrically connected to the lamp control terminal of MCU control circuit 03, one end of buzzer B2 and one end of resistor R17 are connected to the power output terminal of boost circuit 02, the other end of buzzer B2 and the other end of resistor R17 are connected to the collector of NPN transistor Q2, the emitter of NPN transistor Q2 is grounded, and the base of NPN transistor Q2 is electrically connected to the lamp control terminal of MCU control circuit 03 through resistor R10; Among them, chip U2 is the XC3101AT model chip; chip U3 is the DW06D model chip; chip U5 is the MT3608 model chip; chip U1 is the HT66F0185 model chip; and chip U4 is the NE555DR model chip.

[0040] The specific implementation of this utility model is as follows: An external power supply is connected through a USB interface, and then the lithium battery is charged through a charging protection circuit. The lithium battery then outputs a stable +5V power supply to the boost circuit, which in turn supplies power to the MCU control circuit, signal detection circuit, and lamp control circuit. The signal detection circuit transmits and receives signals through an antenna, and then detects magnetic field signals. The signals are then sent to the MCU control circuit through the "INT IN" terminal to identify and process the corresponding signals. Based on the strength of the magnetic field signal, the circuit drives the changes of different colored lights and controls the lighting of candles, etc.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A simulated candlelight response circuit based on magnetic field induction, characterized in that, The simulated candlelight response circuit includes: a charging protection circuit, a battery module, a boost circuit, an MCU control circuit, a signal detection circuit, and a lighting control circuit. The power input terminal of the charging protection circuit is electrically connected to an external power source. The power output terminal of the charging protection circuit is electrically connected to one port of the battery module. One port of the battery module is electrically connected to the power input terminal of the boost circuit. The power output terminal of the boost circuit is electrically connected to the power input terminals of the MCU control circuit, the signal detection circuit, and the lighting control circuit, respectively. The signal control terminal of the MCU control circuit is electrically connected to the signal control terminal of the signal detection circuit. The lighting control terminal of the MCU control circuit is electrically connected to the lighting control terminal of the lighting control circuit. The lighting control circuit includes a colored light control circuit and a candle light control circuit. The power input terminals of the colored light control circuit and the candle light control circuit are respectively electrically connected to the power output terminal of the boost circuit. The lighting control terminals of the colored light control circuit and the candle light control circuit are respectively electrically connected to the lighting control terminal of the MCU control circuit.

2. The simulated candlelight response circuit based on magnetic field induction according to claim 1, characterized in that, The charging protection circuit includes a monitoring circuit and a protection circuit. The power input terminal of the monitoring circuit is electrically connected to an external power source, the power output terminal of the monitoring circuit is electrically connected to the power input terminal of the protection circuit, and the power output terminal of the monitoring circuit is electrically connected to one port of the battery module.

3. The simulated candlelight response circuit based on magnetic field induction according to claim 2, characterized in that, The monitoring circuit includes a USB interface, resistor R5, capacitor C7, resistor R22, chip U2, resistor R21, capacitor C6, resistor R25, LED1, and LED2. Terminals "1" and "6" of the USB interface are grounded together. Terminals "2" and "5" of the USB interface are connected to one end of resistor R5. The other end of resistor R5 is electrically connected to one end of capacitor C7, one end of resistor R21, one end of resistor R25, and terminal "4" of chip U2. The other end of capacitor C7 is grounded, and the other end of resistor R21 is electrically connected to... Connect the chip U2"8 terminal, the other end of the resistor R25 is electrically connected to the positive terminals of LED1 and LED2, the negative terminal of LED1 is electrically connected to the chip U2"7 terminal, the negative terminal of LED2 is electrically connected to the chip U2"6 terminal, the chip U2"2 terminal is electrically connected to one end of the resistor R22, the other end of the resistor R22 and the chip U2"3 terminal are grounded together, the chip U2"5 terminal is electrically connected to one end of the capacitor C6 and the power input terminal of the protection circuit, and the other end of the capacitor C6 is grounded.

4. The simulated candlelight response circuit based on magnetic field induction according to claim 3, characterized in that, The protection circuit includes a resistor R30, a chip U3, a capacitor C8, and a resistor R31. One end of the resistor R31 is electrically connected to the terminal "5" of the chip U2. The other end of the resistor R31 is electrically connected to one end of the capacitor C8 and the terminal "5" of the chip U3. The terminal "1" of the chip U3 is electrically connected to one end of the resistor R30. The other end of the resistor R30 and the terminal "2" of the chip U3 are grounded together. The terminal "3" of the chip U3 is electrically connected to the terminal "6" of the chip U3 and the other end of the capacitor C8.

5. A simulated candlelight response circuit based on magnetic field induction according to claim 1, characterized in that, The boost circuit includes a chip U5, a parallel input capacitor, an inductor L1, a diode D1, a resistor R14, a resistor R15, and a parallel output capacitor. The "1" terminal of the chip U5 is electrically connected to one end of the inductor L1 and the positive terminal of the diode D1. The negative terminal of the diode D1, one end of the resistor R14, and one end of the parallel output capacitor are all connected to the power output terminal of the boost circuit. The other end of the parallel output capacitor is grounded. The other end of the resistor R14 is electrically connected to the "3" terminal of the chip U5 and one end of the resistor R15. The other end of the resistor R15 is grounded. The "4" and "5" terminals of the chip U5 are all connected to the other end of the inductor L1, one end of the parallel input capacitor, and one port of the battery module. The "2" terminal of the chip U5 is grounded. The other end of the parallel input capacitor is also grounded.

6. The simulated candlelight response circuit based on magnetic field induction according to claim 1, characterized in that, The colored light control circuit includes NPN transistors Q3, Q9, Q8, Q4, and Q5; resistors R33, R11, R32, R21, R22, R7, R25, R3, R8, and R4; and LEDs-R,-G,-Y,-W, and-B. The emitters of NPN transistors Q3, Q9, Q8, Q4, and Q5 are all grounded. The collector of NPN transistor Q3 is connected to the negative terminal of LED-R through resistor R7; the collector of NPN transistor Q9 is connected to the negative terminal of LED-G through resistor R25; and the collector of NPN transistor Q8 is connected to the negative terminal of LED-Y through resistor R3. The collector of Q4 is connected to the negative terminal of LED-W through resistor R8. The collector of NPN transistor Q5 is connected to the negative terminal of LED-B through resistor R4. The positive terminals of LED-R, LED-G, LED-Y, LED-W, and LED-B are electrically connected to the power output terminal of the boost circuit. The base of NPN transistor Q3 is connected to the R terminal of the MCU control circuit through resistor R11. The base of NPN transistor Q9 is connected to the G terminal of the MCU control circuit through resistor R33. The base of NPN transistor Q8 is connected to the Y terminal of the MCU control circuit through resistor R32. The base of NPN transistor Q4 is connected to the W terminal of the MCU control circuit through resistor R21. The base of NPN transistor Q5 is connected to the B terminal of the MCU control circuit through resistor R22.

7. The simulated candlelight response circuit based on magnetic field induction according to claim 1, characterized in that, The candle lamp control circuit includes a lamp control circuit and a sound control circuit. The power input terminal of the lamp control circuit is electrically connected to the power output terminal of the boost circuit, and the power input terminal of the sound control circuit is electrically connected to the power output terminal of the boost circuit. The lamp control terminal of the lamp control circuit and the lamp control terminal of the sound control circuit are respectively electrically connected to the lamp control terminal of the MCU control circuit.

8. A simulated candle response circuit based on magnetic field induction according to claim 7, characterized in that, The lighting control circuit includes LED4, resistor R37, NPN transistor Q1, and resistor R9. The positive terminal of LED4 is electrically connected to the power output terminal of the boost circuit, the negative terminal of LED4 is electrically connected to one end of resistor R37, the other end of resistor R37 is electrically connected to the collector of NPN transistor Q1, the emitter of NPN transistor Q1 is grounded, the base of NPN transistor Q1 is electrically connected to one end of resistor R9, and the other end of resistor R9 is electrically connected to the lighting control terminal of the MCU control circuit.

9. A simulated candlelight response circuit based on magnetic field induction according to claim 1, characterized in that, The signal detection circuit includes an antenna ANT, a chip U4, capacitors C1, C3, and C2, and resistors R2 and R1. Terminal "1" of chip U4 is grounded along with one end of capacitor C1. Terminal "2" of chip U4 is electrically connected to the antenna ANT. Terminal "3" of chip U4 is electrically connected to the signal control terminal of the MCU control circuit. Terminal "4" of chip U4 is electrically connected to one end of capacitor C3, and the other end of capacitor C3 is grounded. Terminal "5" of chip U4 is electrically connected to one end of capacitor C2, and the other end of capacitor C2 is grounded. Terminal "6" of chip U4 is electrically connected to one end of resistor R2 and terminal "2" of chip U4. The other end of resistor R2 is electrically connected to one end of resistor R1 and terminal "7" of chip U4. The other end of resistor R1 is electrically connected to the power output terminal of the boost circuit. Terminal "8" of chip U4 is electrically connected to the other end of capacitor C1 and the power output terminal of the boost circuit.

10. A simulated candlelight response circuit based on magnetic field induction according to claim 1, characterized in that, The MCU control circuit includes chip U1, resistors R12 and RT1, capacitor C6, resistor R13, LED17, resistor R31, LED16, and resistor R30. Terminal "1" of chip U1 is grounded. Terminal "28" of chip U1 is electrically connected to the power output of the boost circuit. Terminal "24" of chip U1 is electrically connected to one end of resistor R13. The other end of resistor R13 is electrically connected to one end of capacitor C6, one end of resistor R12, and one end of resistor RT1. The other end of capacitor C6 is connected to resistor R30. The other end of RT1 is grounded. The other end of resistor R12 is electrically connected to the power output terminal of the boost circuit. The terminal of chip U1"20 is electrically connected to the positive terminal of LED17. The negative terminal of LED17 is electrically connected to one end of resistor R31. The other end of resistor R31 is electrically connected to the terminal of chip U1"19. The terminal of chip U1"15 is electrically connected to one end of resistor R30. The other end of resistor R30 is connected to the negative terminal of LED16. The positive terminal of LED16 is electrically connected to the power output terminal of the boost circuit.

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