Off-line voice control circuit breaker

Abstract

The utility model provides an off-line voice control circuit breaker, which comprises a main control module, a relay control module, an off-line voice control module, a voice module, an MIC microphone module, a voice power amplifier module, an AC-DC module and a DC-DC module, and is characterized in that the off-line voice control module is used for identifying command words and keywords and is connected and communicated with a main control chip through a UART serial interface; free setting of overvoltage and undervoltage protection points is controlled, a user can simply and directly operate the circuit breaker without moving the circuit breaker, the operation mode is simpler and more convenient, the degree of freedom is high, meanwhile, high-voltage contact is avoided, and the operation risk is overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker equipment field especially relates to a kind of offline voice control circuit breaker. BACKGROUND

[0002] The circuit breaker on market is all fixed overvoltage and undervoltage protection point, after installation, all are placed in distribution box, need to be replaced to set different overvoltage and undervoltage protection point, once after installation, it is inconvenient to modify again, it also has the security risk of high voltage contact operation. SUMMARY

[0003] The utility model solves above technical problem, provide a kind of offline voice control circuit breaker.

[0004] To solve the above technical problems, the technical scheme adopted by the utility model is: an offline voice control circuit breaker, including main control module, relay control module, offline voice control module, voice module, MIC microphone module, voice power amplifier module, AC-DC module and DC-DC module, the main control module is connected with the relay control module, offline voice control module and AC-DC module respectively,

[0005] The main control module includes main control chip U7 and capacitor C22, one end of the capacitor C22 is connected with VCC, the other end of the capacitor C22 is grounded,

[0006] The relay control module includes relay K1, resistor R5, triode Q1, diode D10 and electric appliance interface H1, the collector of the triode Q1 is connected with the anode of the diode D10 and the pin 4 of the relay K1 respectively, the cathode of the diode D10 and the pin 1 of the relay K1 are all connected with VCC1, the emitter of the triode Q1 is grounded, the base of the triode Q1 is connected with the pin 7 of the main control chip U7 after being connected with the resistor R5 in series, the pin 3 of the relay K1 is connected with commercial power ACN, the pin 2 of the relay K1 is connected with the electric appliance interface H1, the electric appliance interface H1 is also connected with commercial power ACL, VCC1 outputs 12V,

[0007] The offline voice control module includes resistor R12, resistor R13, bidirectional diode D2 and bidirectional diode D3, one end of the resistor R12 is connected with the pin 1 of the main control chip U7 and one end of the bidirectional diode D3 respectively, the other end of the bidirectional diode D3 is grounded, one end of the resistor R13 is connected with the pin 8 of the main control chip U7 and one end of the bidirectional diode D2 respectively, the other end of the bidirectional diode D2 is grounded,

[0008] The voice module includes voice chip U2, resistance R11, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, capacitor C13, bidirectional diode D1, voltage stabilizing diode U3 and crystal oscillator X1, pin 1 of the voice chip U2 is connected in series with the capacitor C4 and grounded, pin 2 of the voice chip U2 is connected with one end of the resistance R11, one end of the capacitor C5 and one end of the bidirectional diode D1 respectively, the other end of the resistance R11 is connected with the negative electrode of the voltage stabilizing diode U3, one end of the capacitor C6 and VCC respectively, the positive electrode of the voltage stabilizing diode U3 and the other end of the capacitor C6, the other end of the bidirectional diode D1 and the other end of the capacitor C5 are all grounded, pin 3 and pin 4 of the voice chip U2 are connected in series with one end of the capacitor C7 and one end of the capacitor C8 respectively, the other ends of the capacitor C7 and the capacitor C8 are both grounded, pin 6 of the voice chip U2 is connected with one end of the capacitor C9 and the crystal oscillator X1 respectively, the other end of the capacitor C9 is grounded, one end of the capacitor C10 is grounded, the other end of the capacitor C10, the crystal oscillator X1 and pin 6 of the voice chip U2, pin 9 and pin 10 of the voice chip U2 are connected with the other end of the resistance R12 and the other end of the resistance R13 respectively, pin 19 of the voice chip U2 is connected in series with the capacitor C11 and grounded, pin 22 and pin 23 of the voice chip U2 are connected with one end of the capacitor C13 and one end of the capacitor C12 respectively, the other ends of the capacitor C13 and the capacitor C12 are both grounded, VCC outputs 5V,

[0009] The MIC microphone module includes resistance R14, resistance R15, bidirectional diode D4, bidirectional diode D5, capacitor C14 and capacitor C15, one end of the capacitor C14 is connected with pin 21 of the voice chip U2, the other end of the capacitor C14 is connected with one end of the resistance R14 and one end of the bidirectional diode D4 respectively, the other end of the resistance R14 is connected with pin 22 of the voice chip U2, one end of the capacitor C15 is connected with pin 20 of the voice chip U2, the other end of the capacitor C15 is connected with one end of the resistance R15 and one end of the bidirectional diode D5 respectively, the other end of the resistance R14, the other end of the bidirectional diode D5 and the other end of the bidirectional diode D4 are all grounded,

[0010] The voice power amplifier module includes a power amplifier chip U4, a resistor R16, a resistor R17, a capacitor C16, a capacitor C17 and a capacitor C18, a pin 1 of the power amplifier chip U4 is connected to a pin 16 of the voice chip U2, one end of the capacitor C16 is grounded, the other end of the capacitor C16 is connected to a pin 2 and a pin 3 of the power amplifier chip U4 respectively, one end of the capacitor C18 is connected to a pin 17 of the voice chip U2, the other end of the capacitor C18 is connected to the resistor R17 and a pin 4 of the power amplifier chip U4 after being connected to the resistor R16 in series, one end of the capacitor C17 is connected to VCC, and the other end of the capacitor C17 is grounded,

[0011] The AC-DC module includes a power supply chip U5, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C19, a diode D6, a diode D7, a diode D8, a diode D9, an inductor L1 and a fuse U1, one end of the resistor R1, the resistor R3 and the fuse U1 is connected to an AC power supply ACL in parallel, the other end of the resistor R3, one end of the capacitor C2, the positive electrode of the diode D8 and one end of the capacitor C3 are connected to an AC power supply ACN and ground in parallel respectively, the other end of the fuse U1 is connected to the positive electrode of the diode D6, the negative electrode of the diode D6 is connected to the positive electrode of the diode D7, the negative electrode of the diode D7 is connected to one end of the capacitor C1 and a pin 4 of the power supply chip U5 respectively, the other end of the resistor R1 is connected to one end of the resistor R4 and a pin 2 of the main control chip U7 after being connected to the resistor R2 in series, the other end of the resistor R4 is grounded, the negative electrode of the diode D8 is connected to one end of the capacitor C19 and one end of the inductor L1 respectively, the other end of the capacitor C19 is connected to a pin 2 of the power supply chip U5 and the negative electrode of the diode D9 respectively, the positive electrode of the diode D9, the other end of the inductor L1 and the other end of the capacitor C3 are all connected to VCC1,

[0012] The DC-DC module includes a power supply chip U6, a capacitor C20 and a capacitor C21, a pin 2 of the power supply chip U6 is connected to one end of the capacitor C21 and VCC1 respectively, a pin 1 of the power supply chip U6 is connected to one end of the capacitor C20 and VCC respectively, the other end of the capacitor C21 and the other end of the capacitor C20 are both grounded.

[0013] The chip model of the main control chip U7 is CA51F152S1 SOP8, the chip model of the voice chip U2 is JZ1302 QSOP24, the chip model of the power amplifier chip U4 is 8002A SOP8, the chip model of the power supply chip U5 is SM7015 SOP8, and the chip model of the power supply chip U6 is 78L05 SOT-23-3.

[0014] The off-line voice control circuit breaker has the advantages and positive effects that: the off-line voice control circuit breaker utilizes the off-line voice control module to identify command words and keywords, communicates through the UART serial interface and the main control chip, controls the free setting of the overvoltage protection point and the under-voltage protection point, the user can simply and directly operate the circuit breaker without moving the circuit breaker, the operation mode is more simple and convenient and has high freedom, meanwhile, high pressure contact is avoided, and the operation risk is overcome. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a principle block diagram of the off-line voice control circuit breaker;

[0016] Figure 2 It is a main control module circuit connection diagram;

[0017] Figure 3 It is a relay module circuit connection diagram;

[0018] Figure 4 It is an off-line voice control module circuit connection diagram;

[0019] Figure 5 It is a voice module circuit connection diagram;

[0020] Figure 6 It is a MIC microphone module circuit connection diagram;

[0021] Figure 7 It is a voice power amplifier module circuit connection diagram;

[0022] Figure 8 It is an AC-DC module circuit connection diagram;

[0023] Figure 9 It is a DC-DC module circuit connection diagram. DETAILED DESCRIPTION

[0024] The specific embodiments of the utility model will be described in detail below in combination with the drawings.

[0025] As shown in Figure 1 , a best implementation of the off-line voice control circuit breaker comprises a main control module, a relay control module, an off-line voice control module, a voice module, a MIC microphone module, a voice power amplifier module, an AC-DC module and a DC-DC module, and the main control module is connected with the relay control module, the off-line voice control module and the AC-DC module respectively.

[0026] As shown in Figure 2 , the main control module comprises a main control chip U7 and a capacitor C22, one end of the capacitor C22 is connected with VCC, and the other end of the capacitor C22 is grounded. Figure 3As shown in the figure, the relay control module includes a relay K1, a resistor R5, a triode Q1, a diode D10 and an electrical interface H1, the collector of the triode Q1 is connected to the anode of the diode D10 and the pin 4 of the relay K1 respectively, the cathode of the diode D10 and the pin 1 of the relay K1 are both connected to VCC1, the emitter of the triode Q1 is grounded, the base of the triode Q1 is connected to the pin 7 of the master control chip U7 after being connected in series with the resistor R5, the pin 3 of the relay K1 is connected to the mains ACN, the pin 2 of the relay K1 is connected to the electrical interface H1, the electrical interface H1 is also connected to the mains ACL, and VCC1 outputs 12V. The main control module is mainly composed of a single-chip microcomputer, which is used for mutual communication with the offline voice control module. By detecting the voltage value of the mains and comparing it with the over-voltage and under-voltage protection points set by the voice, if it is not within the range, the relay is controlled to be disconnected, thereby protecting the safety of the electrical appliances.

[0027] As shown in the figure, Figure 4 The offline voice control module includes a resistor R12, a resistor R13, a bidirectional diode D2 and a bidirectional diode D3, one end of the resistor R12 is connected to the pin 1 of the master control chip U7 and one end of the bidirectional diode D3 respectively, the other end of the bidirectional diode D3 is grounded, one end of the resistor R13 is connected to the pin 8 of the master control chip U7 and one end of the bidirectional diode D2 respectively, and the other end of the bidirectional diode D2 is grounded. The offline voice control module mainly receives the wake-up word, keyword and command word received by the MIC microphone module. Through the voice power amplifier module and the user interaction, it is sent to the master control MCU for processing.

[0028] As shown in the figure, Figure 5As shown, the voice module includes voice chip U2, resistor R11, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, capacitor C13, bidirectional diode D1, voltage stabilizing diode U3 and crystal oscillator X1, pin 1 of the voice chip U2 is connected in series with the capacitor C4 and grounded, pin 2 of the voice chip U2 is connected with one end of the resistor R11, one end of the capacitor C5 and one end of the bidirectional diode D1 respectively, the other end of the resistor R11 is connected with the negative electrode of the voltage stabilizing diode U3, one end of the capacitor C6 and VCC respectively, the positive electrode of the voltage stabilizing diode U3 and the other end of the capacitor C6, the other end of the bidirectional diode D1 and the other end of the capacitor C5 are all grounded, pin 3 and pin 4 of the voice chip U2 are connected in series with one end of the capacitor C7 and one end of the capacitor C8 respectively, the other ends of the capacitor C7 and the capacitor C8 are both grounded, pin 6 of the voice chip U2 is connected with one end of the capacitor C9 and the crystal oscillator X1 respectively, the other end of the capacitor C9 is grounded, one end of the capacitor C10 is grounded, the other end of the capacitor C10, the crystal oscillator X1 and pin 6 of the voice chip U2, pin 9 and pin 10 of the voice chip U2 are connected with the other end of the resistor R12 and the other end of the resistor R13 respectively, pin 19 of the voice chip U2 is connected in series with the capacitor C11 and grounded, pin 22 and pin 23 of the voice chip U2 are connected with one end of the capacitor C13 and one end of the capacitor C12 respectively, the other ends of the capacitor C13 and the capacitor C12 are both grounded, and VCC outputs 5V. The voice module is mainly used for converting the voice instruction of the user into data form and sending the data to the single-chip microcomputer through the serial port, and converting the control instruction data sent by the single-chip microcomputer into a voice signal and playing the voice signal through the MIC microphone module.

[0029] As shown in the figure, Figure 6 As shown, the MIC microphone module includes resistor R14, resistor R15, bidirectional diode D4, bidirectional diode D5, capacitor C14 and capacitor C15, one end of the capacitor C14 is connected with pin 21 of the voice chip U2, the other end of the capacitor C14 is connected with one end of the resistor R14 and one end of the bidirectional diode D4 respectively, the other end of the resistor R14 is connected with pin 22 of the voice chip U2, one end of the capacitor C15 is connected with pin 20 of the voice chip U2, the other end of the capacitor C15 is connected with one end of the resistor R15 and one end of the bidirectional diode D5 respectively, the other end of the resistor R14, the other end of the bidirectional diode D5 and the other end of the bidirectional diode D4 are all grounded. The MIC microphone module mainly receives the voice of the user.

[0030] As shown in the figure, Figure 7As shown, the voice power amplifier module includes power amplifier chip U4, resistor R16, resistor R17, capacitor C16, capacitor C17 and capacitor C18, pin 1 of the power amplifier chip U4 is connected to pin 16 of the voice chip U2, one end of the capacitor C16 is grounded, the other end of the capacitor C16 is connected to pin 2 and pin 3 of the power amplifier chip U4 respectively, one end of the capacitor C18 is connected to pin 17 of the voice chip U2, the other end of the capacitor C18 is connected to the resistor R17 and the pin 4 of the power amplifier chip U4 after being connected to the resistor R16 in series, one end of the capacitor C17 is connected to VCC, and the other end of the capacitor C17 is grounded. The voice power amplifier module is mainly used to issue voice and interact with the user.

[0031] As shown in Figure 8 As shown, the AC-DC module includes power supply chip U5, resistor R1, resistor R2, resistor R3, resistor R4, capacitor C1, capacitor C2, capacitor C3, capacitor C19, diode D6, diode D7, diode D8, diode D9, inductor L1 and fuse U1, one end of the resistor R1, resistor R3 and fuse U1 is connected to the power supply AC L in parallel, the other end of the resistor R3, one end of the capacitor C2, the positive electrode of the diode D8 and one end of the capacitor C3 are connected to the power supply AC N and ground in parallel respectively, the other end of the fuse U1 is connected to the positive electrode of the diode D6, the negative electrode of the diode D6 is connected to the positive electrode of the diode D7, the negative electrode of the diode D7 is connected to one end of the capacitor C1 and pin 4 of the power supply chip U5 respectively, the other end of the resistor R1 is connected to one end of the resistor R4 and pin 2 of the main control chip U7 after being connected to the resistor R2 in series, the other end of the resistor R4 is grounded, the negative electrode of the diode D8 is connected to one end of the capacitor C19 and one end of the inductor L1 respectively, the other end of the capacitor C19 is connected to pin 2 of the power supply chip U5 and the negative electrode of the diode D9 respectively, the positive electrode of the diode D9, the other end of the inductor L1 and the other end of the capacitor C3 are all connected to VCC1. The high voltage of the power supply is reduced to 12V by the AC-DC module for the relay control module, and the on-off of the load is controlled by controlling the relay.

[0032] As shown in Figure 9 As shown, the DC-DC module includes power supply chip U6, capacitor C20 and capacitor C21, pin 2 of the power supply chip U6 is connected to one end of the capacitor C21 and VCC1 respectively, pin 1 of the power supply chip U6 is connected to one end of the capacitor C20 and VCC respectively, the other end of the capacitor C21 and the other end of the capacitor C20 are both grounded. 12V is reduced to 5V by the DC-DC module for the voice module, MIC microphone module, voice power amplifier module and main control module.

[0033] The chip model of the master chip U7 is CA51F152S1 SOP8, the chip model of the voice chip U2 is JZ1302 QSOP24, the chip model of the power amplifier chip U4 is 8002A SOP8, the chip model of the power supply chip U5 is SM7015 SOP8, and the chip model of the power supply chip U6 is 78L05 SOT-23-3.

[0034] The working process of the offline voice control circuit breaker is that the offline voice can be operated after being woken up by a fixed wake-up word, and the wake-up word can be set by the user. For example, after the user says "Xiaolu Xiaolu" to wake up, the user says the command word "set overvoltage xxx volts" and "set under-voltage xxx volts", and after the single-chip microcomputer receives the data and sets it, it communicates with the voice module to broadcast "overvoltage has been set xxx volts" and "under-voltage has been set xxx volts", reminding the user that the setting has been completed. The user can simply and directly operate the circuit breaker without moving the circuit breaker. The offline voice control circuit breaker uses an offline voice control module to identify command words and keywords, communicates with the master chip through a UART serial interface, controls the free setting of over-voltage and under-voltage protection points, and the user can simply and directly operate the circuit breaker without moving the circuit breaker, so that the operation method is more simple and convenient, the degree of freedom is high, high-voltage contact is avoided, and the operation risk is overcome.

[0035] The embodiments of the utility model are described in detail above, but the content described can only be the preferred embodiments of the utility model, and cannot be considered as limiting the scope of the implementation of the application. Any equivalent changes and improvements within the scope of the utility model should still belong to the scope covered by the patent.

Claims

1. An off-line voice control circuit breaker characterized by: The utility model relates to a kind of intelligent household appliance control system, including master module, relay control module, offline voice control module, voice module, MIC microphone module, voice power amplifier module, AC-DC module and DC-DC module, the master module is connected with the relay control module, offline voice control module and AC-DC module respectively, The master module includes master chip U7 and capacitor C22, one end of the capacitor C22 is connected with VCC, the other end of the capacitor C22 is grounded, The relay control module includes relay K1, resistor R5, triode Q1, diode D10 and electric appliance interface H1, the collector of the triode Q1 is connected with the anode of the diode D10 and the pin 4 of the relay K1 respectively, the cathode of the diode D10 and the pin 1 of the relay K1 are connected with VCC1, the emitter of the triode Q1 is grounded, the base of the triode Q1 is connected with the pin 7 of the master chip U7 after being connected with the resistor R5 in series, the pin 3 of the relay K1 is connected with AC power supply ACN, the pin 2 of the relay K1 is connected with the electric appliance interface H1, the electric appliance interface H1 is also connected with AC power supply ACL, VCC1 outputs 12V, The offline voice control module includes resistor R12, resistor R13, bidirectional diode D2 and bidirectional diode D3, one end of the resistor R12 is connected with the pin 1 of the master chip U7 and one end of the bidirectional diode D3 respectively, the other end of the bidirectional diode D3 is grounded, one end of the resistor R13 is connected with the pin 8 of the master chip U7 and one end of the bidirectional diode D2 respectively, the other end of the bidirectional diode D2 is grounded, The voice module includes voice chip U2, resistance R11, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, capacitor C13, bidirectional diode D1, voltage stabilizing diode U3 and crystal oscillator X1, pin 1 of the voice chip U2 is connected in series with the capacitor C4 and grounded, pin 2 of the voice chip U2 is connected with one end of the resistance R11, one end of the capacitor C5 and one end of the bidirectional diode D1 respectively, the other end of the resistance R11 is connected with the negative electrode of the voltage stabilizing diode U3, one end of the capacitor C6 and VCC respectively, the positive electrode of the voltage stabilizing diode U3 and the other end of the capacitor C6, the other end of the bidirectional diode D1 and the other end of the capacitor C5 are grounded, pin 3 and pin 4 of the voice chip U2 are connected in series with one end of the capacitor C7 and one end of the capacitor C8 respectively, the other ends of the capacitor C7 and the capacitor C8 are grounded, pin 6 of the voice chip U2 is connected with one end of the capacitor C9 and the crystal oscillator X1 respectively, the other end of the capacitor C9 is grounded, one end of the capacitor C10 is grounded, the other end of the capacitor C10, the crystal oscillator X1 and pin 6 of the voice chip U2, pin 9 and pin 10 of the voice chip U2 are connected with the other end of the resistance R12 and the other end of the resistance R13 respectively, pin 19 of the voice chip U2 is connected in series with the capacitor C11 and grounded, pin 22 and pin 23 of the voice chip U2 are connected with one end of the capacitor C13 and one end of the capacitor C12 respectively, the other ends of the capacitor C13 and the capacitor C12 are grounded, VCC outputs 5V, The MIC microphone module includes resistance R14, resistance R15, bidirectional diode D4, bidirectional diode D5, capacitor C14 and capacitor C15, one end of the capacitor C14 is connected with pin 21 of the voice chip U2, the other end of the capacitor C14 is connected with one end of the resistance R14 and one end of the bidirectional diode D4 respectively, the other end of the resistance R14 is connected with pin 22 of the voice chip U2, one end of the capacitor C15 is connected with pin 20 of the voice chip U2, the other end of the capacitor C15 is connected with one end of the resistance R15 and one end of the bidirectional diode D5 respectively, the other end of the resistance R14, the other end of the bidirectional diode D5 and the other end of the bidirectional diode D4 are grounded, The voice power amplifier module includes a power amplifier chip U4, a resistor R16, a resistor R17, a capacitor C16, a capacitor C17 and a capacitor C18, the pin 1 of the power amplifier chip U4 is connected with the pin 16 of the voice chip U2, one end of the capacitor C16 is grounded, the other end of the capacitor C16 is connected with the pin 2 and the pin 3 of the power amplifier chip U4 respectively, one end of the capacitor C18 is connected with the pin 17 of the voice chip U2, the other end of the capacitor C18 is connected with the resistor R17 and the pin 4 of the power amplifier chip U4 after being connected with the resistor R16 in series, one end of the capacitor C17 is connected with VCC, the other end of the capacitor C17 is grounded, The AC-DC module includes a power supply chip U5, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C19, a diode D6, a diode D7, a diode D8, a diode D9, an inductor L1 and a fuse U1, one end of the resistor R1, the resistor R3 and the fuse U1 is connected with the power supply AC L in parallel, the other end of the resistor R3, one end of the capacitor C2, the positive electrode of the diode D8 and one end of the capacitor C3 are connected with the power supply AC N and the ground in parallel respectively, the other end of the fuse U1 is connected with the positive electrode of the diode D6, the negative electrode of the diode D6 is connected with the positive electrode of the diode D7, the negative electrode of the diode D7 is connected with one end of the capacitor C1 and the pin 4 of the power supply chip U5 respectively, the other end of the resistor R1 is connected with one end of the resistor R4 and the pin 2 of the main control chip U7 after being connected with the resistor R2 in series, the other end of the resistor R4 is grounded, the negative electrode of the diode D8 is connected with one end of the capacitor C19 and one end of the inductor L1 respectively, the other end of the capacitor C19 is connected with the pin 2 of the power supply chip U5 and the negative electrode of the diode D9 respectively, the positive electrode of the diode D9, the other end of the inductor L1 and the other end of the capacitor C3 are all connected with VCC1, The DC-DC module includes a power supply chip U6, a capacitor C20 and a capacitor C21, the pin 2 of the power supply chip U6 is connected with one end of the capacitor C21 and VCC1 respectively, the pin 1 of the power supply chip U6 is connected with one end of the capacitor C20 and VCC respectively, the other end of the capacitor C21 and the other end of the capacitor C20 are both grounded.

2. An off-line voice control circuit breaker according to claim 1, characterized in that: The chip model of the main control chip U7 is CA51F152S1 SOP8, the chip model of the voice chip U2 is JZ1302 QSOP24, the chip model of the power amplifier chip U4 is 8002A SOP8, the chip model of the power supply chip U5 is SM7015 SOP8, and the chip model of the power supply chip U6 is 78L05SOT-23-3.

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