An emergency starting device for automobile key based on single-chip microcomputer

Abstract

The application discloses a kind of based on single-chip microcomputer's automobile key emergency starting device, belong to automobile intelligent key field, including weak energy wireless power taking circuit, wireless communication circuit and power automatic control circuit;The weak energy wireless power taking circuit includes the coil L1 of Z direction, the coil L2 of X direction and the coil L3 of Y direction, the anode of Schottky diode D5 is connected VREG network, the anode of switch diode D1 is connected with the anode of diode D21, power automatic control circuit includes voltage monitoring chip U1, the input end Vin of voltage monitoring chip U1 is connected with VREG network, wireless communication circuit includes capacitor C14, one end of capacitor C14 is connected with the anode of switch diode D1, the other end of resistance R8 is connected with the modulation signal LF_FSK of single-chip microcomputer.The application has realized the relevant function of automobile intelligent key by single-chip microcomputer, does not need special chip, reduces cost, simplifies manufacturing process, improves flexibility and scalability.

Description

Technical Field

[0001] This invention relates to the field of smart car keys, specifically a microcontroller-based emergency start device for car keys. Background Technology

[0002] In today's automotive technology field, smart keys have become increasingly common. They not only provide a convenient user experience but also greatly enhance the technological feel of cars. Compared to traditional keys, smart keys offer functional improvements. Besides being able to remotely disable the anti-theft alarm system and start the car with the key, more advanced cars are equipped with a function that allows the anti-theft alarm to be attached to the key. When the remote approaches the door, the door automatically opens. Once inside the car, the engine can be started directly without inserting the key. Once the key is removed from the car, the vehicle will sound an alarm and cannot be restarted after being turned off. This is all thanks to the coil in the smart key, which can send and receive vehicle signals to achieve keyless start.

[0003] However, existing car smart keys all use dedicated chips to achieve wireless power supply and communication functions, requiring additional hardware costs and manufacturing processes. The use of dedicated chips increases hardware costs and complicates the manufacturing process, leading to low production efficiency and high costs. Furthermore, the use of dedicated chips limits the system's flexibility and scalability, making it difficult to adapt to car smart key products with different specifications and requirements. These problems limit the competitiveness and sustainable development of existing technologies in large-scale applications. Therefore, there is a need to find a car smart key that can improve product performance and reduce production costs. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, the present invention aims to provide a microcontroller-based emergency start device for car keys, thereby resolving the issues raised in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An emergency start device for car keys based on a microcontroller includes a low-energy wireless power supply circuit, a wireless communication circuit, and an automatic power control circuit. The low-energy wireless power supply circuit includes a coil L1 in the Z direction, a coil L2 in the X direction, and a coil L3 in the Y direction. The two input terminals of the coil L1 in the Z direction are connected in parallel with capacitors C2 and C3 to form a first LC resonant circuit. One input terminal of the coil L1 in the Z direction is connected to the anode of diode D21 in the Schottky diode group D2, and the other input terminal of the coil L1 in the Z direction is grounded.

[0007] The two input terminals of the coil L2 in the X direction are connected in parallel with capacitors C7 and C8 to form a second LC resonant circuit; one input terminal of the coil L2 in the X direction is connected to the anode of diode D22 in the Schottky diode group D2, and the other input terminal of the coil L2 in the X direction is grounded.

[0008] The two input terminals of the Y-direction coil L3 are connected in parallel with capacitors C10 and C11 to form a third LC resonant circuit; one input terminal of the Y-direction coil L3 is connected to the anode of diode D23 in the Schottky diode group D2, and the other input terminal of the Y-direction coil L3 is grounded.

[0009] The cathodes of diodes D21, D22, and D23 are all connected to the VREG network. The VREG network is connected to the cathode of Zener diode D7. The anode of Zener diode D7 is connected to GND. Zener diode D7 is used to stabilize the voltage of the VREG network circuit.

[0010] The anode of Schottky diode D5 is connected to the VREG network, and the cathode of Schottky diode D5 is connected to one end of energy storage capacitor C4 and one end of energy storage capacitor C5. The other ends of energy storage capacitor C4 and energy storage capacitor C5 are both grounded.

[0011] The anode of switching diode D1 is connected to the anode of diode D21. The cathode of switching diode D1 is connected to one end of capacitor C1, one end of resistor R1, and one end of resistor R5. The other end of capacitor C1 and the other end of resistor R1 are grounded. The other end of resistor R5 is connected to the 3D_DATA network, which is connected to the I / O port of the microcontroller.

[0012] The power supply automatic control circuit includes a voltage monitoring chip U1. The input terminal Vin of the voltage monitoring chip U1 is connected to the VREG network. One end of the capacitor C6 is connected to the input terminal Vin of the voltage monitoring chip U1, and the other end of the capacitor C6 is grounded.

[0013] The ground terminal VSS of the voltage monitoring chip U1 is grounded; the output terminal Vout of the voltage monitoring chip U1 is connected to the anode of the switching diode D6, and the cathode of the switching diode D6 is simultaneously connected to one end of the capacitor C13 and the gate of the crystal field-effect transistor Q2, while the other end of the capacitor C13 and the source of the crystal field-effect transistor Q2 are grounded; the voltage monitoring chip U1 is used to monitor voltage changes in the VREG network circuit and implement corresponding control.

[0014] The drain of the field-effect transistor Q2 is connected to one end of the current-limiting resistor R6, the other end of the current-limiting resistor R6 is connected to the gate of the field-effect transistor Q1 and one end of the resistor R7, the source of the field-effect transistor Q1 is connected to the other end of the resistor R7, the source of the field-effect transistor Q1 is connected to the peak-to-peak voltage VPP, and the drain of the field-effect transistor Q1 is connected to the output voltage VOUT.

[0015] The wireless communication circuit includes capacitor C14. One end of capacitor C14 is connected to the anode of switching diode D1, and the other end of capacitor C14 is connected to the drain of crystal field-effect transistor Q3. The gate of crystal field-effect transistor Q3 is connected to one end of current-limiting resistor R8 and one end of resistor R10. The source of crystal field-effect transistor Q3 is connected to one end of resistor R9. The other end of resistor R8 is connected to the modulation signal LF_FSK of the microcontroller. The other ends of resistor R10 and resistor R9 are both grounded.

[0016] As a further aspect of the present invention: the Schottky diode D2 is used to convert alternating current into unidirectional direct current.

[0017] As a further aspect of the present invention: the resistor R1 and the capacitor C1 form a filter circuit RC, which is used to filter and smooth the input signal, remove high-frequency noise and fluctuations, and obtain a stable digital signal output.

[0018] As a further aspect of the present invention, the current-limiting resistor R5 controls the current flow in the circuit.

[0019] As a further aspect of the present invention: the 3D_DATA network is used to receive signals from car base stations.

[0020] As a further aspect of the present invention: the capacitor C6 is a decoupling capacitor, used for decoupling and filtering in the VREG network circuit to eliminate noise, fluctuations and interference in the VREG network circuit.

[0021] As a further aspect of the present invention: the modulation signal LF_FSK output of the microcontroller includes different logic states of 0 and 1, and digital information is transmitted through frequency changes to realize the transmission and recognition of digital signals.

[0022] As a further aspect of the present invention: the capacitor C14 and the coil L1 in the Z direction of the weak energy wireless power extraction circuit form an oscillation circuit for converting the microcontroller modulation signal and transmitting the coil signal.

[0023] As a further aspect of the present invention: energy storage capacitors C4 and C5 are used to store electrical energy.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] This invention implements the functions of a smart car key using a microcontroller, eliminating the need for a dedicated chip, thus reducing costs, simplifying the manufacturing process, and improving flexibility and scalability. This innovative design gives this invention a significant competitive advantage in the field of smart car keys, providing a more reliable and economical solution for the future development of intelligent vehicles. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a low-power wireless power supply circuit in a microcontroller-based emergency start device for car keys, as disclosed in an embodiment.

[0027] Figure 2 This is a schematic diagram of the automatic power control circuit in a microcontroller-based emergency start device for car keys, as disclosed in an embodiment.

[0028] Figure 3 This is a schematic diagram of the wireless communication circuit in a microcontroller-based emergency start device for car keys, as disclosed in an embodiment. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] Please see Figure 1-3 An emergency start device for car keys based on a microcontroller includes a low-energy wireless power supply circuit, a wireless communication circuit, and an automatic power control circuit. The low-energy wireless power supply circuit includes a coil L1 in the Z direction, a coil L2 in the X direction, and a coil L3 in the Y direction. The two input terminals of the coil L1 in the Z direction are connected in parallel with capacitors C2 and C3 to form a first LC resonant circuit. One input terminal of the coil L1 in the Z direction is connected to the anode of diode D21 in the Schottky diode group D2, and the other input terminal of the coil L1 in the Z direction is grounded.

[0032] The two input terminals of the coil L2 in the X direction are connected in parallel with capacitors C7 and C8 to form a second LC resonant circuit; one input terminal of the coil L2 in the X direction is connected to the anode of diode D22 in the Schottky diode group D2, and the other input terminal of the coil L2 in the X direction is grounded.

[0033] The two input terminals of the Y-direction coil L3 are connected in parallel with capacitors C10 and C11 to form a third LC resonant circuit; one input terminal of the Y-direction coil L3 is connected to the anode of diode D23 in the Schottky diode group D2, and the other input terminal of the Y-direction coil L3 is grounded.

[0034] The coils L1 in the Z direction, L2 in the X direction, and L3 in the Y direction serve as input terminals for weak energy. The car RFID base station generates alternating current at a certain frequency. When these coils are close to the car RFID base station, they generate a certain alternating current through electromagnetic induction. The alternating current flows from the anode to the cathode of the D2 Schottky diode. The D2 Schottky diode only allows the alternating current to flow from the anode to the cathode, so the current flows in only one direction, thus converting the alternating current into unidirectional direct current.

[0035] The cathodes of diodes D21, D22, and D23 are all connected to the VREG network. The VREG network is connected to the cathode of Zener diode D7, and the anode of Zener diode D7 is connected to GND. Zener diode D7 is used to stabilize the voltage of the VREG network circuit. This Zener diode can maintain a stable voltage output within a certain range and effectively resist the effects of input voltage fluctuations or load changes.

[0036] The anode of Schottky diode D5 is connected to the VREG network, and the cathode of Schottky diode D5 is connected to one end of energy storage capacitor C4 and one end of energy storage capacitor C5. The other ends of energy storage capacitors C4 and C5 are grounded. Energy storage capacitors C4 and C5 have the ability to store charge, which allows them to store electrical energy in an electric field. The energy storage principle of a capacitor is to store positive and negative charges in an electric field. When a capacitor is charged, charge is stored on the plates of the capacitor, forming electric field energy. The anode of Schottky diode D5 is connected to the VREG network, and the electrical energy in the VREG network eventually flows into the cathode of Schottky diode D5. Since Schottky diode D5 only allows current to flow from the anode to the cathode, the electrical energy is ultimately stored in energy storage capacitors C4 and C5.

[0037] The anode of switching diode D1 is connected to the anode of diode D21. The cathode of switching diode D1 is simultaneously connected to one end of capacitor C1, one end of resistor R1, and one end of resistor R5. The other ends of capacitor C1 and resistor R1 are grounded, and the other end of resistor R5 is connected to the 3D_DATA network, which is connected to the microcontroller's I / O port. When the Z-direction coil L1 approaches the automotive RFID base station, a certain amount of alternating current is generated through electromagnetic induction. The signal generated by the automotive base station is not continuous; that is, within a specific time period, the base station coil will periodically turn on and off to transmit data and commands. The current generated by the Z-direction coil L1 is connected to the filter circuit RC through switching diode D1. The diode's function is to guide the signal generated by the coil to the filter circuit RC while preventing reverse current flow. The filter circuit RC consists of resistor R1 and capacitor C1. Its function is to filter and smooth the input signal, removing high-frequency noise and fluctuations, thereby obtaining a stable digital signal output. The capacitor stores energy and smooths the signal during the filtering process, while the resistor limits the current flow rate. Together, they form the signal processing effect of the filter circuit RC. In this way, the current generated by the coil is processed by the switching diode D1 and the RC filter circuit, ultimately resulting in a stable digital signal output. This digital signal is then transmitted to the 3D_DATA network via the current-limiting resistor R5. The current-limiting resistor R5 controls the current flow in the circuit, preventing interference with the normal operation of the RC filter circuit. The 3D_DATA network is connected to the microcontroller's I / O port, thus enabling the reception of signals from the car base station.

[0038] The automatic power control circuit includes a voltage monitoring chip U1. The input terminal Vin of the voltage monitoring chip U1 is connected to the VREG network. One end of capacitor C6 is connected to the input terminal Vin of the voltage monitoring chip U1, and the other end of capacitor C6 is grounded. Capacitor C6 is a decoupling capacitor used for decoupling and filtering in the VREG network circuit to eliminate noise, fluctuations, and interference in the VREG network circuit. The connection of decoupling capacitor C6 provides a stable power supply and reduces interference in signal transmission. Decoupling capacitor C6 improves the reliability and performance of the circuit.

[0039] The ground terminal VSS of voltage monitoring chip U1 is grounded; the output terminal Vout of voltage monitoring chip U1 is connected to the anode of switching diode D6, and the cathode of switching diode D6 is simultaneously connected to one end of capacitor C13 and the gate of crystal field-effect transistor Q2. The other end of capacitor C13 and the source of crystal field-effect transistor Q2 are grounded. Voltage monitoring chip U1 is used to monitor voltage changes in the VREG network circuit and implement corresponding control. The power input and monitored terminal of voltage monitoring chip U1 are designed as the same pin, which receives the voltage signal from the VREG network and is also used as the power input pin of voltage monitoring chip U1. When the voltage Vin at the input terminal of voltage monitoring chip U1 exceeds or falls below the set threshold, the voltage monitoring chip will output a corresponding voltage signal through the output terminal Vout. When the output voltage of U1 is high or low, the voltage is transmitted to crystal field-effect transistor Q2 through switching diode D6. When the gate of crystal field-effect transistor Q2 is controlled by voltage, crystal field-effect transistor Q2 is in the turned-on state, forming a circuit.

[0040] The drain of the field-effect transistor Q2 is connected to one end of the current-limiting resistor R6, the other end of the current-limiting resistor R6 is connected to the gate of the field-effect transistor Q1 and one end of the resistor R7, the source of the field-effect transistor Q1 is connected to the other end of the resistor R7, the source of the field-effect transistor Q1 is connected to the peak-to-peak voltage VPP, and the drain of the field-effect transistor Q1 is connected to the output voltage VOUT.

[0041] At this point, the gate of transistor Q1 is pulled low, causing Q1 to turn on. Through this interaction, the energy stored in capacitors C4 and C5 in the low-energy wireless power extraction circuit can be released to the VOUT network, which is connected to the anode of the car key. This design enables the transmission and control of the voltage monitoring chip's output signal, and through the synergistic effect of transistors Q1 and Q2, achieves the effective release and management of the energy in capacitors C4 and C5 in the low-energy wireless power extraction circuit. This design plays an important role in circuit control and energy management, improving the system's performance and stability.

[0042] The wireless communication circuit includes capacitor C14. One end of capacitor C14 is connected to the anode of switching diode D1, and the other end of capacitor C14 is connected to the drain of crystal field-effect transistor Q3. The gate of crystal field-effect transistor Q3 is connected to one end of current-limiting resistor R8 and one end of resistor R10. The source of crystal field-effect transistor Q3 is connected to one end of resistor R9. The other end of resistor R8 is connected to the modulation signal LF_FSK of the microcontroller. The other ends of resistor R10 and resistor R9 are both grounded.

[0043] LF_FSK is the modulation signal that the microcontroller needs to send to the automotive RFID base station. The 0 and 1 modulation method transmitted by LF_FSK represents different logical states by adjusting the signal frequency. Specifically, when sending the digit 0, the microcontroller uses a specific frequency to represent that logical state; while when sending the digit 1, the microcontroller uses a different frequency. This modulation method transmits digital information through frequency changes, realizing the transmission and identification of digital signals.

[0044] When the modulation signal LF_FSK is transmitted to the crystal field-effect transistor Q3, the switching control of Q3 causes an oscillation circuit to be formed between capacitor C14 and the L1 coil in the weak energy wireless power extraction circuit. When the crystal field-effect transistor Q3 is turned on, capacitor C14 charges, and a changing magnetic field is generated in the coil, thereby generating a signal and transmitting it through the antenna. This design realizes the conversion of the microcontroller's modulation signal and the transmission of the coil signal, providing an effective method for communication and wireless transmission.

[0045] This invention achieves the same functionality using a microcontroller, implementing the Texas Instruments IMMO function for car smart keys. By implementing the relevant functions of a car smart key through a microcontroller, it eliminates the need for dedicated chips, reducing costs, simplifying the manufacturing process, and improving flexibility and scalability. This innovative design gives this invention a significant competitive advantage in the field of car smart keys, providing a more reliable and economical solution for the future development of intelligent vehicles.

[0046] The function to be achieved by this invention is similar to that of a wireless charging power supply for mobile phones, but it is used for car smart keys. Smart keys obtain a small amount of energy wirelessly through the car's RFID base station, which is the main device for communication between the car and the smart key card. However, this is insufficient to power the smart key system. This invention stores the energy in an energy storage capacitor, and once sufficient energy is stored, it is released to the car key system, allowing it to function normally.

[0047] This invention replaces the IMMO function of traditional car smart keys, creating the following known and potential technology / product application areas and application methods. This invention can be widely applied in the automotive industry, realizing wireless power supply and communication transmission functions for car smart keys, thus improving the level of automotive intelligence. The technology of this invention can be applied to IoT devices, enabling wireless communication and energy transmission between devices, expanding the possibilities of IoT applications. The technology of this invention can be used in security systems, realizing wireless communication and intelligent identification functions, improving the intelligence and convenience of security equipment. The technology of this invention can also be applied to the smart home field, enabling interconnection and interoperability between home devices, improving the level of smart home living.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered exemplary and not restrictive in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description, and therefore all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A microcontroller-based emergency start device for car keys, characterized in that, It includes a low-energy wireless power extraction circuit, a wireless communication circuit, and a power automatic control circuit; the low-energy wireless power extraction circuit includes a coil L1 in the Z direction, a coil L2 in the X direction, and a coil L3 in the Y direction. The two input terminals of the coil L1 in the Z direction are connected in parallel with capacitors C2 and C3 to form a first LC resonant circuit; one input terminal of the coil L1 in the Z direction is connected to the anode of diode D21 in the Schottky diode group D2, and the other input terminal of the coil L1 in the Z direction is grounded. The two input terminals of the coil L2 in the X direction are connected in parallel with capacitors C7 and C8 to form a second LC resonant circuit; one input terminal of the coil L2 in the X direction is connected to the anode of diode D22 in the Schottky diode group D2, and the other input terminal of the coil L2 in the X direction is grounded. The two input terminals of the Y-direction coil L3 are connected in parallel with capacitors C10 and C11 to form a third LC resonant circuit; one input terminal of the Y-direction coil L3 is connected to the anode of diode D23 in the Schottky diode group D2, and the other input terminal of the Y-direction coil L3 is grounded. The cathodes of diodes D21, D22, and D23 are all connected to the VREG network. The VREG network is connected to the cathode of Zener diode D7. The anode of Zener diode D7 is connected to GND. Zener diode D7 is used to stabilize the voltage of the VREG network circuit. The anode of Schottky diode D5 is connected to the VREG network, and the cathode of Schottky diode D5 is connected to one end of energy storage capacitor C4 and one end of energy storage capacitor C5. The other ends of energy storage capacitor C4 and energy storage capacitor C5 are both grounded. The anode of switching diode D1 is connected to the anode of diode D21. The cathode of switching diode D1 is connected to one end of capacitor C1, one end of resistor R1, and one end of resistor R5. The other end of capacitor C1 and the other end of resistor R1 are grounded. The other end of resistor R5 is connected to the 3D_DATA network, which is connected to the I / O port of the microcontroller. The power supply automatic control circuit includes a voltage monitoring chip U1. The input terminal Vin of the voltage monitoring chip U1 is connected to the VREG network. One end of the capacitor C6 is connected to the input terminal Vin of the voltage monitoring chip U1, and the other end of the capacitor C6 is grounded. The ground terminal VSS of the voltage monitoring chip U1 is grounded; the output terminal Vout of the voltage monitoring chip U1 is connected to the anode of the switching diode D6, and the cathode of the switching diode D6 is simultaneously connected to one end of the capacitor C13 and the gate of the crystal field-effect transistor Q2, while the other end of the capacitor C13 and the source of the crystal field-effect transistor Q2 are grounded; the voltage monitoring chip U1 is used to monitor voltage changes in the VREG network circuit and implement corresponding control. The drain of the field-effect transistor Q2 is connected to one end of the current-limiting resistor R6, the other end of the current-limiting resistor R6 is connected to the gate of the field-effect transistor Q1 and one end of the resistor R7, the source of the field-effect transistor Q1 is connected to the other end of the resistor R7, the source of the field-effect transistor Q1 is connected to the peak-to-peak voltage VPP, and the drain of the field-effect transistor Q1 is connected to the output voltage VOUT. The wireless communication circuit includes capacitor C14. One end of capacitor C14 is connected to the anode of switching diode D1, and the other end of capacitor C14 is connected to the drain of crystal field-effect transistor Q3. The gate of crystal field-effect transistor Q3 is connected to one end of current-limiting resistor R8 and one end of resistor R10. The source of crystal field-effect transistor Q3 is connected to one end of resistor R9. The other end of resistor R8 is connected to the modulation signal LF_FSK of the microcontroller. The other ends of resistor R10 and resistor R9 are both grounded.

2. The emergency start device for a car key based on a microcontroller according to claim 1, characterized in that, The Schottky diode D2 is used to convert alternating current into unidirectional direct current.

3. The emergency start device for a car key based on a microcontroller according to claim 2, characterized in that, The resistor R1 and capacitor C1 form a filter circuit RC, which is used to filter and smooth the input signal, remove high-frequency noise and fluctuations, and obtain a stable digital signal output.

4. The emergency start device for a car key based on a microcontroller according to claim 3, characterized in that, The current-limiting resistor R5 controls the current flow in the circuit.

5. The emergency start device for a car key based on a microcontroller according to claim 4, characterized in that, The 3D_DATA network is used to receive signals from car base stations.

6. The emergency start device for a car key based on a microcontroller according to claim 5, characterized in that, The capacitor C6 is a decoupling capacitor used for decoupling and filtering in the VREG network circuit to eliminate noise, fluctuations and interference in the VREG network circuit.

7. The emergency start device for a car key based on a microcontroller according to claim 6, characterized in that, The microcontroller's modulation signal LF_FSK output includes different logic states of 0 and 1, and transmits digital information and realizes digital signal transmission and recognition through frequency changes.

8. The emergency start device for a car key based on a microcontroller according to claim 7, characterized in that, The capacitor C14 and the Z-direction coil L1 in the weak energy wireless power supply circuit form an oscillation circuit for converting the microcontroller modulation signal and transmitting the coil signal.

9. The emergency start device for a car key based on a microcontroller according to claim 1, characterized in that, The energy storage capacitors C4 and C5 are used to store electrical energy.

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