A novel high-power controller circuit

Abstract

The utility model relates to electrical control technical field, concretely discloses a kind of novel high-power controller circuit, including AC conversion DC power supply circuit, DC-DC power conversion circuit, RF remote control circuit, relay output control circuit, on-off value input detection circuit, RS485 circuit, analog quantity acquisition circuit, RJ45 Ethernet circuit and MCU circuit, the AC conversion DC power supply circuit is connected with DC-DC power conversion circuit, the DC-DC power conversion circuit, RF remote control circuit, relay output control circuit, on-off value input detection circuit, RS485 circuit, analog quantity acquisition circuit, RJ45 Ethernet circuit are electrically connected with the MCU circuit.The utility model provides wider DC power supply range by setting AC conversion DC power supply circuit and DC-DC power conversion circuit cooperation, more reliable high-power loop control mode is provided by setting relay output control circuit, improve output stability, avoid malfunction.

Description

Technical Field

[0001] This utility model relates to the field of electrical control technology, and in particular to a novel high-power controller circuit. Background Technology

[0002] A smart controller is an electronic switching device that can be remotely controlled via a network (such as Ethernet, Wi-Fi, or 4G). Essentially, it's a programmable, networked relay module that allows users to turn connected electrical equipment on or off from anywhere with a network connection. It can be understood as a network-enabled smart power switch, but it's typically more specialized and reliable, and is widely used in industrial control, landscape lighting projects, and remote management scenarios.

[0003] Existing smart controllers typically have the following basic functions:

[0004] 1. Remote switch control: Remotely control the "closing" or "opening" of relays via mobile phone, web page or dedicated software, thereby controlling the power supply and de-energization of connected devices (such as lights, motors, water pumps, air conditioners, etc.);

[0005] 2. Network connection: Connect to the local network via Ethernet (RJ45) or Wi-Fi, and then access the Internet through a router. Alternatively, access the Internet directly via a 4G network.

[0006] 3. Relay output: Provides one or more relay contacts (normally open / normally closed) to control AC or DC loads. Common specifications: Supports 250V AC / 10A.

[0007] 4. Status monitoring and feedback: It can read the current status of the relay (on / off). Some models support external sensors to monitor electrical parameters such as voltage, current, and power, or environmental parameters such as temperature and humidity.

[0008] Automation and timing: Supports setting timed tasks (such as automatically turning on the machine at 8:00 every day), and controlling the relay output through external sensor signals (such as automatically cutting off the power after receiving a sensor alarm signal).

[0009] While the existing intelligent controllers mentioned above can meet basic usage requirements, they have the following drawbacks: 1. Limited power supply: They only support one of two power supply methods: DC 12-24V or AC 220V; 2. Unstable relay output: They typically use 250V AC / 10A relays, or some high-end equipment uses 250V AC / 20A relays. However, in practical applications, the 10A relays cannot directly control the on / off state of electrical appliances due to their low power control capacity, requiring the addition of AC contactors. This results in complex wiring, a bulky overall device, and significant noise from the AC contactors during switching; 3. Simultaneous control of multiple circuits is prone to failure: In high-power circuit control applications such as lighting, each circuit controls a relatively large power (typically 1-5KW), and the total power controlled in the application scenario can reach tens of kilowatts. If such a large power is started simultaneously, the impact on the main power supply circuit is particularly large, easily causing the main circuit to trip. Utility Model Content

[0010] The technical problem to be solved by this utility model is to provide a new type of high-power controller circuit that addresses the above-mentioned deficiencies of the prior art. By setting up an AC to DC power supply circuit and a DC-DC power conversion circuit to provide a wider DC power supply range, and by setting up a relay output control circuit to provide a more reliable high-power loop control method, the output stability is improved and malfunctions are avoided.

[0011] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0012] A novel high-power controller circuit includes an AC-to-DC power supply circuit, a DC-DC power conversion circuit, an RF remote control circuit, a relay output control circuit, a digital input detection circuit, an RS485 circuit, an analog signal acquisition circuit, an RJ45 Ethernet circuit, and an MCU circuit. The AC-to-DC power supply circuit is connected to the DC-DC power conversion circuit, and the DC-DC power conversion circuit, RF remote control circuit, relay output control circuit, digital input detection circuit, RS485 circuit, analog signal acquisition circuit, and RJ45 Ethernet circuit are all electrically connected to the MCU circuit.

[0013] Preferably, the MCU circuit includes an MCU main control chip U1, and the RJ45 Ethernet circuit includes an Ethernet chip U17, a network port J12, and peripheral circuits of the Ethernet chip. The Ethernet chip U17 is connected to the MCU main control chip U1, the network port J12, and the peripheral circuits of the Ethernet chip.

[0014] Preferably, the AC to DC power supply circuit includes a power interface J1, a fuse R2, a capacitor CX1, a transformer L2, a power conversion chip U2, and a diode D4. The power interface J1 is connected to the fuse R2, the transformer is connected to the fuse R2, the capacitor CX1, and the power conversion chip U2, and the diode D4 is connected to the power conversion chip U2.

[0015] Preferably, the DC-DC power conversion circuit includes a power interface IN1, a diode D1, a resistor R1, an inductor L9, a power conversion chip U3, an inductor L1, a resistor R9, a power conversion chip U6, an inductor L5, a resistor R8, and a power conversion chip U4. The power interface IN1, diode D1, and resistor R9 are all connected to the diode D4. The inductor L9 is connected to both the diode D1 and the power conversion chip U3. The inductor L1 is connected to the power conversion chip U3. The resistor R9 is connected to both the diode D4 and the power conversion chip U6. The inductor L5 is connected to both the power conversion chip U6 and the resistor R8. The power conversion chip U4 is connected to the MCU main control chip U1, the inductor L1, and the resistor R8.

[0016] Preferably, the RF remote control circuit includes an RF remote control chip U5, an antenna terminal RF1, and a capacitor C1. The capacitor C1 is connected to the antenna terminal RF1 and the RF remote control chip U5, and the RF remote control chip U5 is connected to the MCU main control chip U1.

[0017] Preferably, the relay output control circuit includes several relay driver chips, several magnetic latching relays, and several relay output interfaces. The magnetic latching relays are connected to the relay driver chips and relay output interfaces respectively, and the relay driver chips are connected to the MCU main control chip U1.

[0018] Preferably, the switch input detection circuit includes several switch signal detection resistors and several Zener diodes, and the switch signal detection resistors are respectively connected to the Zener diodes and the MCU main control chip U1.

[0019] Preferably, the RS485 circuit includes a UART serial port J11, a Zener diode V1, a Zener diode V2, a Zener diode V3, and a 485 chip U16. The 485 chip U16 is connected to the UART serial port J11, the Zener diode V1, the Zener diode V2, the Zener diode V3, and the MCU main control chip U1, respectively.

[0020] Preferably, the analog signal acquisition circuit includes several voltage sampling and filtering circuits, interface P1, interface P2 and interface P3, and the voltage sampling and filtering circuits are respectively connected to the MCU main control chip U1, interface P1, interface P2 and interface P3.

[0021] Preferably, the high-power controller circuit further includes a zero-crossing detection circuit, a keyboard circuit, an indicator light circuit, and a buzzer circuit, all of which are electrically connected to the MCU circuit.

[0022] By adopting the above technical solution, the present invention provides a novel high-power controller circuit with the following advantages: the AC-to-DC power supply circuit in the high-power controller circuit is connected to the DC-DC power conversion circuit, and the DC-DC power conversion circuit, RF remote control circuit, relay output control circuit, switch input detection circuit, RS485 circuit, analog acquisition circuit, and RJ45 Ethernet circuit are all electrically connected to the MCU circuit. By setting the AC-to-DC power supply circuit and the DC-DC power conversion circuit to work together, a wider DC power supply range is provided, and dual power supply automatic selection is provided to better adapt to the on-site power supply voltage. By setting up a relay output control circuit, a more reliable high-power circuit control method is provided. When controlling high-power circuits, there is no need to install an additional AC contactor, resulting in a smaller overall size, simpler wiring and construction, less noise during switching, and improved output stability. It also avoids the situation where the contacts stick and cannot disconnect as in ordinary relays, thus preventing malfunctions. Furthermore, it integrates multi-circuit simultaneous control and provides a multi-circuit sequential start method. When multiple circuits are connected or disconnected at the same time, the circuit implements a time-sharing execution method, staggering the action time of each circuit. While providing intelligent remote control, it also provides the most basic safety control method. Attached Figure Description

[0023] Figure 1 This is a structural block diagram of the present invention;

[0024] Figure 2 This is a circuit diagram of the AC to DC power supply circuit and the DC-DC power conversion circuit in this utility model;

[0025] Figure 3 This is a circuit diagram of the RF remote control circuit and the relay output control circuit in this utility model;

[0026] Figure 4 This is a circuit diagram of the switch input detection circuit and the RS485 circuit in this utility model;

[0027] Figure 5 This is a circuit diagram of the analog signal acquisition circuit in this utility model;

[0028] Figure 6 This is a circuit diagram of the RJ45 Ethernet circuit in this utility model;

[0029] Figure 7This is the circuit schematic diagram of the MCU circuit in this utility model;

[0030] Figure 8 This is a circuit diagram of the zero detection circuit, keyboard circuit, and buzzer circuit in this utility model;

[0031] Figure 9 This is a circuit diagram of the indicator light circuit in this utility model;

[0032] In the diagram, 1-AC to DC power supply circuit, 2-DC to DC power conversion circuit, 3-RF remote control circuit, 4-relay output control circuit, 5-switching input detection circuit, 6-RS485 circuit, 7-analog signal acquisition circuit, 8-RJ45 Ethernet circuit, 9-MCU circuit, 10-zero crossing detection circuit, 11-keyboard circuit, 12-indicator light circuit, and 13-buzzer circuit. Detailed Implementation

[0033] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] like Figure 1-9As shown, the novel high-power controller circuit includes an AC-to-DC power supply circuit 1, a DC-DC power conversion circuit 2, an RF remote control circuit 3, a relay output control circuit 4, a switch input detection circuit 5, an RS485 circuit 6, an analog signal acquisition circuit 7, an RJ45 Ethernet circuit 8, and an MCU circuit 9. The AC-to-DC power supply circuit 1 is connected to the DC-DC power conversion circuit 2, and the DC-DC power conversion circuit 2, RF remote control circuit 3, relay output control circuit 4, switch input detection circuit 5, RS485 circuit 6, analog signal acquisition circuit 7, and RJ45 Ethernet circuit 8 are all electrically connected to the MCU circuit 9. Understandably, the aforementioned circuitry can be integrated onto a single PCB board and installed within the controller, enabling remote Ethernet control of the device. It can be managed using the original factory-provided management software or through secondary development to access custom management software or cloud service systems. The device supports AT commands, Modbus TCP / RTU, and MQTT protocols, facilitating integration with management systems of different protocol standards. It also supports integration with the Alibaba Cloud IoT platform. Equipped with an ARM processor and a 100M Ethernet solution, the device features fast response, high stability, and strong anti-interference capabilities. It supports intelligent control including manual, remote, timed, and self-organizing network modes, meeting the requirements of industrial environments. A 50A relay easily handles lighting control scenarios; the 50A magnetic latching relay can control a 5KW lighting load. The device integrates a 485 interface, allowing connection to switch panels or various sensors for richer application expansion.

[0037] Specifically, the MCU circuit 9 includes an MCU main control chip U1, and the RJ45 Ethernet circuit 8 includes an Ethernet chip U17, a network port J12, and peripheral circuitry for the Ethernet chip. The Ethernet chip U17 is connected to the MCU main control chip U1, the network port J12, and the peripheral circuitry for the Ethernet chip. It is understood that the MCU main control chip U1 uses an AT32F415RCT7 chip as the logic processor of the entire controller circuit, used to implement network communication, network status detection, switch quantity detection, analog quantity acquisition, relay control, timing control, and linkage control, thereby realizing the product's logical functions. The Ethernet chip U17 uses a W5500 chip, which is an embedded Ethernet controller chip integrating a full hardware TCP / IP protocol stack. It integrates a 10 / 100M Ethernet PHY supporting auto-negotiation and communicates with the MCU (U1) host through a high-speed SPI interface to realize the device's wired Ethernet communication capability, thus enabling access to a local area network or wide area network for remote control and management.

[0038] Specifically, the AC-to-DC power supply circuit 1 includes a power interface J1, a fuse R2, a capacitor CX1, a transformer L2, a power conversion chip U2, and a diode D4. The power interface J1 is connected to the fuse R2. The transformer is connected to the fuse R2, the capacitor CX1, and the power conversion chip U2. The diode D4 is connected to the power conversion chip U2. It is understood that the power conversion chip U2 is an RPD5WSR12. Its front end consists of a composite fuse R2 (MZ11-10E450), a safety capacitor CX1, and a common-mode inductor, forming a 220V overvoltage, overcurrent, and reverse connection protection circuit. The power module RPD5WSR12 and D4 form an AC 220V power supply to DC 12V power supply circuit, used to convert 220V AC power to 12V DC power.

[0039] Specifically, the DC-DC power conversion circuit 2 includes a power interface IN1, a diode D1, a resistor R1, an inductor L9, a power conversion chip U3, an inductor L1, a resistor R9, a power conversion chip U6, an inductor L5, a resistor R8, and a power conversion chip U4. The power interface IN1, diode D1, and resistor R9 are all connected to the diode D4. The inductor L9 is connected to the diode D1 and the power conversion chip U3. The inductor L1 is connected to the power conversion chip U3. The resistor R9 is connected to the diode D4 and the power conversion chip U6. The inductor L5 is connected to the power conversion chip U6 and the resistor R8. The power conversion chip U4 is connected to the MCU main control chip U1, the inductor L1, and the resistor R8. Understandably, power conversion chip U3 uses the XL1509-5.0E1 chip, power conversion chip U6 uses the XL1509-12 chip, and power conversion chip U4 uses the L1117-3.3V chip; in this DC-DC power conversion circuit 2: a filtering overvoltage, overcurrent, and reverse connection protection circuit is composed of diode D1, self-resetting fuse R1, TVS diode D2, capacitor C57, inductor L9, capacitor C2, and capacitor C5; and a power conversion chip U3, inductor L1, diode... The DC 12-36V is stepped down to 5V by resistors and capacitors such as transistor D3, capacitors C6 and C7. The 5V power supply is then converted to 3.3V by power conversion chip U4 to supply the internal circuit. The overvoltage, overcurrent and reverse connection protection circuit consists of self-resetting fuse R9, TVS diode D6, capacitors C13 and C14. The DC 12-36V is stepped down to 12V by resistors and capacitors such as power conversion chip U6, inductor L5, diode D7, capacitors C17, C18, C16 and resistor R8.

[0040] Specifically, the RF remote control circuit 3 includes an RF remote control chip U5, an antenna terminal RF1, and a capacitor C1. The capacitor C1 is connected to both the antenna terminal RF1 and the RF remote control chip U5. The RF remote control chip U5 is connected to the MCU main control chip U1. It is understood that the RF remote control chip U5 uses an LR690N chip. The RF wireless receiving circuit, composed of the RF remote control chip U5, crystal oscillator X1, capacitors C1, C9, C10, C11, and C12, inductors L3 and L4, and the antenna terminal RF1, is used to receive 315M wireless signals and connect to the I / O port to send the signals to the MCU circuit.

[0041] Specifically, the relay output control circuit 4 includes several relay driver chips, several magnetic latching relays, and several relay output interfaces. The magnetic latching relays are connected to the relay driver chips and relay output interfaces respectively, and the relay driver chips are connected to the MCU main control chip U1. It is understood that MD7620A (U8~U15) magnetic latching relay driver chips and HF32FA-G / 005-H1 (K1~K8) magnetic latching relays are used to control the on / off state of the relays. These are connected to the MCU main control chip U1 via ordinary I / O to drive the opening and closing of the aforementioned magnetic latching relays.

[0042] Specifically, the switch input detection circuit 5 includes several switch signal detection resistors and several Zener diodes. The switch signal detection resistors are connected to the Zener diodes and the MCU main control chip U1, respectively. It can be understood that the switch detection circuit, composed of resistors R26-R33, R35, R36, R38-R41, R44-R49 and Zener diodes D8-D17, detects external switch signals, supports switch signal detection up to 36V, and supports dry contact, PNP, and NPN wet contact signal detection. Internally, it is connected to the MCU main control chip U1 via ordinary I / O pins to receive external switch signals.

[0043] Specifically, the RS485 circuit 6 includes a UART serial port J11, Zener diodes V1, V2, and V3, and a 485 chip U16. The 485 chip U16 is connected to the UART serial port J11, Zener diodes V1, V2, and V3, and the MCU main control chip U1. It is understood that the 485 chip U16 uses the BL3085 chip. A TVS anti-static surge and overcurrent protection circuit composed of RT1, RT2, V1, V2, and V3 prevents external interference signals from damaging the circuit. The UART serial port J11 is connected to the MCU main control chip U1. The RS485 bus interface is widely used in industrial environments. Through this RS485 circuit, the UART serial port signal of the MCU main control chip U1 is converted into an RS485 signal, enabling communication with the central control host or central control screen.

[0044] Specifically, the analog signal acquisition circuit 7 includes several voltage sampling and filtering circuits, interface P1, interface P2, and interface P3. These voltage sampling and filtering circuits are connected to the MCU main control chip U1, interface P1, interface P2, and interface P3, respectively. Understandably, the multiple voltage sampling and filtering circuits, composed of components such as resistors R54, R55, R56, R57, R62, TVC transistor D18, and transistor Q3, are connected to the ADC analog input detection pin of the MCU main control chip U1 through the front-end sampling circuit to acquire external analog voltages from 0 to 5V. The multiple TVC transistors, including D18, are used to implement overvoltage protection for the input signal.

[0045] Specifically, the high-power controller circuit also includes a zero-crossing detection circuit 10, a keyboard circuit 11, an indicator light circuit 12, and a buzzer circuit 13, all of which are electrically connected to the MCU circuit 9. Understandably, the zero-crossing detection circuit 10 consists of optocoupler U7, diode D5, transistor Q1, and resistors and capacitors R3, R4, R5, R6, R7, and C15, forming a zero-crossing protection circuit. This circuit detects when the AC input voltage crosses zero and, in conjunction with the MCU main control chip U1, controls the relay to close instantaneously. The keyboard circuit 11 uses U22 as the main control chip. U22 (CH455G) is a digital tube display driver and keyboard scanning control chip. It consists of keys KEY1-KEY12, capacitors C55 and C56, and the main control chip U22, forming the keyboard control circuit. The main control chip U22 uses the CH455G chip, which, as the digital tube display driver and keyboard scanning control chip, receives and processes the signals from pressed keys and sends them to the MCU. The CU main control chip U1; the main control chips U19, U20, and U21 (74HC595) in the indicator circuit 12 can convert serial input data into parallel output, which can effectively save the I / O port resources of the microcontroller. It can control 8 output ports through a simple serial interface. By connecting the serial output pin (QH') of the previous stage chip to the serial input pin (DS) of the next stage chip through the MCU control, multiple 74HC595 chips can be cascaded, thereby expanding the number of bits of parallel output and realizing precise control of the on and off of multiple LEDs; the buzzer circuit composed of resistor R43, resistor R52, transistor Q2, and buzzer B1 is connected to the MCU main control chip U1 through ordinary I / O to realize the buzzer response.

[0046] Understandably, this utility model has a reasonable design and unique structure, and has the following advantages:

[0047] 1. Diverse Power Supply Options: Supports dual power supply interfaces of DC 9-36V and AC 220V, with automatic selection between the two. A wider DC power supply range better adapts to on-site power supply voltages. A safer AC power supply solution ensures that even if the 220V power supply interface is mistakenly connected to a 380V phase voltage, it will not cause damage, avoiding equipment burnout due to incorrect on-site wiring.

[0048] 2. More Reliable Relay Output: Using a 50A magnetic latching relay, no additional AC contactor is needed when controlling high-power circuits. This results in a smaller overall size, simpler wiring, and less noise during switching. Furthermore, the switching principle of the magnetic latching relay differs from that of ordinary relays, preventing the contacts from sticking and failing to disconnect, thus providing a more reliable control method.

[0049] 3. More stable multi-circuit simultaneous control: It provides a multi-circuit sequential start-up mode. When multiple circuits are connected or disconnected at the same time, the circuit implements a time-sharing execution mode, staggering the action time of each circuit to avoid simultaneous action impacting the main circuit and causing tripping.

[0050] 4. Local Control Method: The equipment integrates manual control buttons for convenient on-site debugging. Even in the event of a network failure preventing remote control, on-site control via manual buttons is still possible. In addition to providing intelligent remote control, basic safety control methods are also provided.

[0051] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A novel high-power controller circuit, characterized in that: It includes an AC-to-DC power supply circuit, a DC-DC power conversion circuit, an RF remote control circuit, a relay output control circuit, a digital input detection circuit, an RS485 circuit, an analog signal acquisition circuit, an RJ45 Ethernet circuit, and an MCU circuit. The AC-to-DC power supply circuit is connected to the DC-DC power conversion circuit, and the DC-DC power conversion circuit, RF remote control circuit, relay output control circuit, digital input detection circuit, RS485 circuit, analog signal acquisition circuit, and RJ45 Ethernet circuit are all electrically connected to the MCU circuit.

2. The novel high-power controller circuit according to claim 1, characterized in that: The MCU circuit includes an MCU main control chip U1, and the RJ45 Ethernet circuit includes an Ethernet chip U17, a network port J12, and peripheral circuits of the Ethernet chip. The Ethernet chip U17 is connected to the MCU main control chip U1, the network port J12, and the peripheral circuits of the Ethernet chip.

3. The novel high-power controller circuit according to claim 2, characterized in that: The AC-to-DC power supply circuit includes a power interface J1, a fuse R2, a capacitor CX1, a transformer L2, a power conversion chip U2, and a diode D4. The power interface J1 is connected to the fuse R2, the transformer is connected to the fuse R2, the capacitor CX1, and the power conversion chip U2, and the diode D4 is connected to the power conversion chip U2.

4. The novel high-power controller circuit according to claim 3, characterized in that: The DC-DC power conversion circuit includes a power interface IN1, a diode D1, a resistor R1, an inductor L9, a power conversion chip U3, an inductor L1, a resistor R9, a power conversion chip U6, an inductor L5, a resistor R8, and a power conversion chip U4. The power interface IN1, diode D1, and resistor R9 are all connected to the diode D4. The inductor L9 is connected to both the diode D1 and the power conversion chip U3. The inductor L1 is connected to the power conversion chip U3. The resistor R9 is connected to both the diode D4 and the power conversion chip U6. The inductor L5 is connected to both the power conversion chip U6 and the resistor R8. The power conversion chip U4 is connected to the MCU main control chip U1, the inductor L1, and the resistor R8.

5. The novel high-power controller circuit according to claim 2, characterized in that: The RF remote control circuit includes an RF remote control chip U5, an antenna terminal RF1, and a capacitor C1. The capacitor C1 is connected to the antenna terminal RF1 and the RF remote control chip U5, and the RF remote control chip U5 is connected to the MCU main control chip U1.

6. The novel high-power controller circuit according to claim 2, characterized in that: The relay output control circuit includes several relay driver chips, several magnetic latching relays, and several relay output interfaces. The magnetic latching relays are connected to the relay driver chips and relay output interfaces respectively, and the relay driver chips are connected to the MCU main control chip U1.

7. The novel high-power controller circuit according to claim 2, characterized in that: The digital input detection circuit includes several digital signal detection resistors and several Zener diodes. The digital signal detection resistors are connected to the Zener diodes and the MCU main control chip U1, respectively.

8. The novel high-power controller circuit according to claim 2, characterized in that: The RS485 circuit includes a UART serial port J11, a Zener diode V1, a Zener diode V2, a Zener diode V3, and a 485 chip U16. The 485 chip U16 is connected to the UART serial port J11, the Zener diode V1, the Zener diode V2, the Zener diode V3, and the MCU main control chip U1.

9. The novel high-power controller circuit according to claim 2, characterized in that: The analog signal acquisition circuit includes several voltage sampling and filtering circuits, interface P1, interface P2 and interface P3. The voltage sampling and filtering circuits are respectively connected to the MCU main control chip U1, interface P1, interface P2 and interface P3.

10. The novel high-power controller circuit according to claim 1, characterized in that: It also includes a zero-crossing detection circuit, a keyboard circuit, an indicator light circuit, and a buzzer circuit, all of which are electrically connected to the MCU circuit.

Images