Domestic component controller
By designing a controller using domestically produced components and employing a high-frequency processor and a closed-loop feedback adjustment mechanism, the problem of insufficient computing power in traditional controllers was solved, improving the control accuracy and sampling frequency of the electrical control system for engineering machinery and realizing independent and controllable electrical system control.
Patent Information
- Application Number
- CN202422671922.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-04
AI Technical Summary
Traditional engineering machinery controllers have limited computing power, making it difficult to meet the needs of complex electronic control algorithms and big data processing. They also lack closed-loop feedback regulation mechanisms, resulting in unsatisfactory accuracy and response speed of PWM output signals. Especially under conditions of large load changes, the sampling frequency is insufficient to capture changes in key parameters, affecting the real-time performance and accuracy of the electronic control system.
The controller uses domestically produced components and includes a controller housing, motherboard, chip output module, and IO resource communication module. The motherboard is equipped with a bus configuration circuit, signal output feedback circuit, and analog signal sampling circuit. It uses a 240MHz 32-bit embedded processor and a closed-loop feedback regulation mechanism to ensure that the response time and error of the PWM output are within the range required by engineering machinery.
It features abundant communication interfaces and I/O resources, strong computing power, flexible programming and configuration, and resistance to high and low temperatures. It improves the control accuracy and sampling frequency of hydraulic equipment, meets the requirements of rapid signal acquisition in engineering machinery electrical control systems, and completely replaces foreign controllers.
Smart Images
Figure CN223450332U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a semiconductor technical field, specifically, relate to a kind of domestic component controller. BACKGROUND
[0002] With the development of semiconductor industry, MCU chip, analog chip, digital chip, power chip, MOS tube chip and other power devices and resistance and capacitance device and other electronic devices can be completely self-produced, self-controllable, so that the engineering machinery controller of domestic electronic components is completely feasible and completely necessary.This controller is used in the electrical system control in engineering machinery (such as excavator, crane etc.), including engine management, hydraulic control, sensor monitoring function, by realizing self-controllable domestic component controller has important feasibility and necessity, helps to enhance the stability of supply chain and equipment self-research ability.
[0003] Traditional engineering machinery controller uses lower main frequency processor, its operation ability is limited, it is difficult to meet the increasingly complex electric control algorithm and big data processing demand, and traditional controller lacks the feedback regulation mechanism of closed loop structure, leading to the precision and response speed of PWM output signal are not ideal, especially in the case of large load change, in the fast-changing engineering machinery operating environment, the sampling frequency of traditional controller is not enough to capture the change of all key parameters, and further affect the real-time performance and accuracy of engineering machinery electric control system.
[0004] For the problems in the related art, no effective solution has been proposed so far. CONTENT OF UTILITY MODEL
[0005] For the problems in the related art, the utility model provides a kind of domestic component controller to overcome the above-mentioned technical problems existing in prior art.
[0006] Therefore, the specific technical scheme adopted by the utility model is as follows:
[0007] A kind of domestic component controller, including controller shell, controller shell inside is provided with controller mainboard, a plurality of chip output modules and main controller module are sequentially arranged on controller mainboard, and the outside one end of controller shell is provided with plug-in IO resource communication module.
[0008] Further, the controller mainboard includes bus configuration circuit, signal output feedback circuit and analog signal sampling circuit.
[0009] Among them, bus configuration circuit is electrically connected with signal output feedback circuit, and signal output feedback circuit is electrically connected with analog signal sampling circuit.
[0010] Further, the bus configuration circuit includes chip U46, resistor R334, resistor R335, capacitor C155, capacitor C156 and crystal oscillator Y1;
[0011] The XTAL pin of chip U46 is connected with one end of resistor R334 and one end of resistor R335 respectively, the other end of resistor R334 is connected with one end of capacitor C155 and the third pin of crystal oscillator Y1 respectively, the other end of capacitor C155 is grounded, the second pin and the fourth pin of crystal oscillator Y1 are connected and grounded, the first pin of crystal oscillator Y1 is connected with one end of capacitor C156, one end of resistor R335 and the EXTAL pin of crystal oscillator Y1 respectively, the other end of capacitor C156 is grounded.
[0012] Further, the SPI2_NSS pin, the SPI2_SCK pin, the SPI2_MISO pin and the SPI2_MOSI pin of chip U46 are configured as serial peripheral interface bus; the CAN1_RX pin, the CAN1_TX pin, the CAN2_RX pin and the CAN2_TX pin of chip U46 are configured as CAN bus; the SCL pin and the SDA pin of chip U46 are configured as I2C bus.
[0013] Further, the signal output feedback circuit includes chip U18, diode D9, resistor R33, capacitor CC21, field effect transistor Q30, resistor R76, resistor R14, field effect transistor Q9, resistor R99, resistor R151, diode D28, capacitor PC11, resistor SR1, resistor R150, capacitor C80, capacitor C130, operational amplifier U26, resistor R313, resistor R247, capacitor C81, resistor R100, capacitor C82 and diode D65;
[0014] The first pin of the chip U18 is connected with one end of the capacitor CC22 and is connected with +5V power supply, the other end of the capacitor CC22 is grounded, the second pin of the chip U18 is connected with one end of the resistor R150 and one end of the capacitor C130 respectively, the other end of the resistor R150 is connected with one end of the capacitor C80 and the third pin of the operational amplifier U26, the other end of the capacitor C80 is grounded, the fourth pin of the operational amplifier U26 is connected with one end of the resistor R313 and one end of the resistor R247 respectively, the other end of the resistor R247 is grounded, the other end of the resistor R313 is connected with the other end of the capacitor C130, the first pin of the operational amplifier U26 and one end of the resistor R100 respectively, the other end of the resistor R100 is connected with one end of the capacitor C82 and the negative electrode of the diode D65 respectively, the other end of the capacitor C82 and the negative electrode of the diode D65 are grounded, the fifth pin of the operational amplifier U26 is connected with one end of the capacitor C81 and is connected with +3.3V power supply, the other end of the capacitor C81 is grounded; the second pin of the operational amplifier U26 is grounded; the seventh pin of the chip U18 is connected with one end of the resistor SR1 and one end of the capacitor PC11 respectively, the other end of the capacitor PC11 is connected with the positive electrode of the diode D28 and is grounded, the negative electrode of the diode D28 is connected with the other end of the resistor SR1, one end of the resistor R76 and the fourth pin of the field effect transistor Q30 respectively, the third pin of the field effect transistor Q30 is connected with the other end of the resistor R76, one end of the capacitor CC21, one end of the resistor R33 and the negative electrode of the diode D9 respectively, the other end of the capacitor CC21 is grounded, the positive electrode of the diode D9 is connected with the other end of the resistor R33, the first pin of the field effect transistor Q30 and one end of the resistor R14 respectively, the other end of the resistor R14 is connected with the third pin of the field effect transistor Q9, the second pin of the field effect transistor Q9 is grounded, the first pin of the field effect transistor Q9 is connected with one end of the resistor R99 and one end of the resistor R151 respectively, the other end of the resistor R151 is grounded.
[0015] Further, the field effect transistor Q9 is an N-channel field effect transistor, and the field effect transistor Q30 is a P-channel field effect transistor.
[0016] The utility model has the advantages of rich communication interface, rich IO resource, strong operation ability, flexible programming configuration, high protection level, high and low temperature resistance and the like, and uses a 32-bit embedded processor with a main frequency of 240MHz and a memory matched with the same, and the operation ability fully meets the requirement of continuous iteration and update of the electric control algorithm of the engineering machinery.
[0017] 1、The utility model has the advantages of rich communication interface, rich IO resource, strong operation ability, flexible programming configuration, high protection level, high and low temperature resistance and the like, and uses a 32-bit embedded processor with a main frequency of 240MHz and a memory matched with the same, and the operation ability fully meets the requirement of continuous iteration and update of the electric control algorithm of the engineering machinery.
[0018] 2、The closed loop feedback adjustment mechanism in the utility model ensures that the response time and error control of PWM output are within the demand range of engineering machinery, helps to improve the control precision of hydraulic equipment, fully meets the electrical requirements of engineering machinery equipment, solves the problem of non-constant PWM output load in the prior art, and further improves the output precision.
[0019] 3、The utility model under working state through preset sampling frequency real-time capture vehicle's running parameter, provide foundation for accurate control and state monitoring, fully accord with the requirement that engineering machinery electric control system collects signal fast. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, other drawings can also be obtained according to these drawings.
[0021] Figure 1 It is a structure schematic diagram of a domestic component controller according to the embodiment of the utility model;
[0022] Figure 2 It is a plan view of the controller mainboard in a domestic component controller according to the embodiment of the utility model;
[0023] Figure 3 It is a principle block diagram of a domestic component controller according to the embodiment of the utility model;
[0024] Figure 4 It is a circuit diagram of bus configuration circuit in a domestic component controller according to the embodiment of the utility model;
[0025] Figure 5 It is a circuit diagram of signal output feedback circuit in a domestic component controller according to the embodiment of the utility model
[0026] Figure 6 It is a circuit diagram of analog signal sampling circuit in a domestic component controller according to the embodiment of the utility model.
[0027] In the drawing:
[0028] 1, controller shell;2, controller mainboard;201, bus configuration circuit;202, signal output feedback circuit;203, analog signal sampling circuit;3, chip output module;4, main controller module;5, plug-in IO resource communication module. DETAILED DESCRIPTION
[0029] For further illustrating the embodiments, the utility model provides has the drawing, these drawings are the utility model disclosure content part, it mainly used to illustrate the embodiment, and can cooperate the related description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to represent similar components.
[0030] According to the embodiments of the utility model, a domestic component controller is provided.
[0031] The utility model is further illustrated by combining with the drawings and specific embodiments, as Figure 1 The domestic component controller according to the embodiments of the utility model, as shown in the drawings, includes controller shell 1, controller shell 1 inside is provided with controller mainboard 2, and a plurality of chip output modules 3 and main controller module 4 are sequentially arranged on controller mainboard 2, and the outside one end of controller shell 1 is provided with plug-in IO resource communication module 5 (equivalent to plug-in IO resource communication interface).
[0032] Specifically, as shown in table 1, IO resource indicates all the interfaces such as input, output, communication and power supply controlled by main controller MCU (equivalent to main control module 4).
[0033] Table 1: IO resource
[0034]
[0035]
[0036] As shown in table 2, the pin position of IO resource corresponding to the vehicle-mounted connector is called pin definition, and IO resource is collected and amplified by main controller MCU and special chip, and is electrically connected with external equipment through vehicle-mounted connector, which is good in protection and easy to replace.
[0037] Table 2: pin definition
[0038]
[0039]
[0040] Specifically, as Figure 3As shown, the MCU (Microcontroller Unit) of the domestic component controller receives the communication instruction of the CAN (Controller Area Network) or the external input signal, and outputs the corresponding switching value and PWM (Pulse Width Modulation) after operation processing, so as to control the corresponding electromagnetic valve or control unit, so that the controlled object such as engineering machinery or special vehicle performs corresponding action.
[0041] In one embodiment, the controller mainboard 2 comprises a bus configuration circuit 201, a signal output feedback circuit 202 and an analog signal sampling circuit 203;
[0042] The bus configuration circuit 201 is electrically connected with the signal output feedback circuit 202, and the signal output feedback circuit 202 is electrically connected with the analog signal sampling circuit 203.
[0043] Specifically, the main controller MCU of the domestic component controller exchanges data with the chip U15 in the analog signal sampling circuit 203 through the bus configuration and the SPI (Serial Peripheral Interface) bus, the chip U15 uploads the collected voltage value (operation rocker) to the main controller MCU, the main controller MCU detects the external action, outputs the PWM1 current proportion value in the signal output feedback circuit 202 through the PWM1_PA8 pin, collects the size of the current output, and feeds back to the main controller MCU through the PWM1_AD pin to form a closed-loop feedback, so as to achieve accurate control.
[0044] In one embodiment, the bus configuration circuit 201 comprises a chip U46, a resistor R334, a resistor R335, a capacitor C155, a capacitor C156 and a crystal oscillator Y1.
[0045] The XTAL pin of the chip U46 is connected with one end of the resistor R334 and one end of the resistor R335 respectively, the other end of the resistor R334 is connected with one end of the capacitor C155 and the third pin of the crystal oscillator Y1 respectively, the other end of the capacitor C155 is grounded, the second pin and the fourth pin of the crystal oscillator Y1 are connected and grounded, the first pin of the crystal oscillator Y1 is connected with one end of the capacitor C156, one end of the resistor R335 and the EXTAL pin of the crystal oscillator Y1 respectively, and the other end of the capacitor C156 is grounded.
[0046] In one embodiment, the SPI2_NSS pin, the SPI2_SCK pin, the SPI2_MISO pin and the SPI2_MOSI pin of the chip U46 are configured as a serial peripheral interface bus.
[0047] The CAN1_RX pin, CAN1_TX pin, CAN2_RX pin and CAN2_TX pin of chip U46 are configured as CAN bus;
[0048] The SCL pin and SDA pin of chip U46 are configured as an I2C bus.
[0049] Specifically, the domestic component controller uses GigaDevice GD32F470ZIT6 as the processor. The chip U46 adopts LQFP144 package. The bus configuration circuit is as follows Figure 4 As shown, the bus configuration of the core processor GD32F470ZIT6 is as follows:
[0050] SPI2_NSS, SPI2_SCK, SPI2_MISO, and SPI2_MOSI are configured as SPI buses, connected to the analog chip U46 and collecting 8 analog inputs.
[0051] CAN1_RX, CAN1_TX and CAN2_RX, CAN2_TX are configured as two CAN buses (Controller Area Network bus, multi-master synchronous serial bus), which are connected to two CAN chips respectively and connected to the external CAN bus for data exchange.
[0052] SCL and SDA are configured as an I2C (Inter-Integrated Circuit) bus to connect to the E2ROM chip for data storage.
[0053] XTAL and EXTAL serve as the main oscillator circuit, connected to the third pin and the first pin of the 8MHz crystal oscillator Y1 respectively, and also connected to capacitors C155 and C156; resistor R335 is connected between XTALI and XTALO.
[0054] like Figure 5 As shown, in one embodiment, the signal output feedback circuit 202 includes a chip U18, a diode D9, a resistor R33, a capacitor CC21, a field effect transistor Q30, a resistor R76, a resistor R14, a field effect transistor Q9, a resistor R99, a resistor R151, a diode D28, a capacitor PC11, a resistor SR1, a resistor R150, a capacitor C80, a capacitor C130, an operational amplifier U26, a resistor R313, a resistor R247, a capacitor C81, a resistor R100, a capacitor C82, and a diode D65;
[0055] The first pin of the chip U18 is connected with one end of the capacitor CC22 and is connected with +5V power supply, the other end of the capacitor CC22 is grounded, the second pin of the chip U18 is connected with one end of the resistor R150 and one end of the capacitor C130 respectively, the other end of the resistor R150 is connected with one end of the capacitor C80 and the third pin of the operational amplifier U26, the other end of the capacitor C80 is grounded, the fourth pin of the operational amplifier U26 is connected with one end of the resistor R313 and one end of the resistor R247 respectively, the other end of the resistor R247 is grounded, the other end of the resistor R313 is connected with the other end of the capacitor C130, the first pin of the operational amplifier U26 and one end of the resistor R100 respectively, the other end of the resistor R100 is connected with one end of the capacitor C82 and the negative electrode of the diode D65 respectively, the other end of the capacitor C82 and the negative electrode of the diode D65 are grounded, the fifth pin of the operational amplifier U26 is connected with one end of the capacitor C81 and is connected with +3.3V power supply, the other end of the capacitor C81 is grounded; the second pin of the operational amplifier U26 is grounded; the seventh pin of the chip U18 is connected with one end of the resistor SR1 and one end of the capacitor PC11 respectively, the other end of the capacitor PC11 is connected with the positive electrode of the diode D28 and is grounded, the negative electrode of the diode D28 is connected with the other end of the resistor SR1, one end of the resistor R76 and the fourth pin of the field effect transistor Q30 respectively, the third pin of the field effect transistor Q30 is connected with the other end of the resistor R76, one end of the capacitor CC21, one end of the resistor R33 and the negative electrode of the diode D9 respectively, the other end of the capacitor CC21 is grounded, the positive electrode of the diode D9 is connected with the other end of the resistor R33, the first pin of the field effect transistor Q30 and one end of the resistor R14 respectively, the other end of the resistor R14 is connected with the third pin of the field effect transistor Q9, the second pin of the field effect transistor Q9 is grounded, the first pin of the field effect transistor Q9 is connected with one end of the resistor R99 and one end of the resistor R151 respectively, the other end of the resistor R151 is grounded.
[0056] Specifically, the PWM output feedback circuit (equivalent to the signal output feedback circuit 202) takes SGM8197 (chip U18) as the core, the fourth pin of the chip U18 is grounded, and the first pin is connected with +5V power supply and decoupling capacitor CC22.
[0057] The resistor SR1 is a sampling resistor, and the two ends are connected with the seventh pin and the eighth pin of the chip U18. The seventh pin of the chip U18 is the PWM output end, and the eighth pin is the PWM input end, which is connected with the pull-up resistor R76 and the negative electrode of the diode D28.
[0058] The second pin of the chip U18 is the feedback output end, which is connected to the AD collection pin of the single-chip microcomputer after being amplified by 2 times by the operational amplifier SGM8955 (operational amplifier U26), so as to measure the actual output current of the PWM, wherein the field effect transistor Q9 is an N-channel field effect transistor, and the field effect transistor Q30 is a P-channel field effect transistor.
[0059] like Figure 6 As shown, in one embodiment, the analog signal sampling circuit 203 includes a chip U15, a resistor R225, a capacitor CC14, a capacitor CC15, a resistor R273, a capacitor CC37, a capacitor CC16, a resistor R228, a resistor R226, a resistor R227, a resistor R229, a resistor R230, a resistor R231, a resistor R139, and a resistor R140;
[0060] The first pin of the chip U15 is connected to one end of the resistor R225, the 20th pin and one end of the capacitor CC14 respectively. The other end of the capacitor CC14 is connected to one end of the capacitor CC15 and grounded. The other end of the capacitor CC15 is connected to the 15th pin of the chip U15 and connected to the +3.3V power supply. The second pin of the chip U15 is connected to one end of the resistor R273 and one end of the capacitor CC37 respectively. The other end of the capacitor CC37 is connected to the 0th pin, the 4th pin, the 5th pin of the chip U15, one end of the resistor R228 and one end of the capacitor CC16 respectively. The other end of the resistor R228 is connected to the 15th pin of the chip U15. The first end of the chip U15 is connected to the resistor R226, and the other end of the resistor R226 is grounded. The eleventh pin of the chip U15 is connected to the resistor R139 through the resistor R227, and the resistor R139 is grounded. The twelfth pin of the chip U15 is connected to the resistor R229. The thirteenth pin of the chip U15 is connected to the resistor R140 through the resistor R230, and the other end of the resistor R140 is connected to the +3.3V power supply. The fourteenth pin of the chip U15 is connected to the resistor R231.
[0061] Specifically, the core chip of the analog sampling circuit is MS5188N (chip U15). The first and twentieth pins of the chip U15 are power pins, which are connected to the +5V power supply through the 0R resistor R225, and are also connected to the decoupling capacitor CC14. The fifteenth pin of the chip U15 is the power pin, which is connected to the +3.3V power supply, and is also connected to the decoupling capacitor CC15. The fourth and fifth pins of the chip U15 are GND pins, which are directly grounded.
[0062] Specifically, the second pin of the chip U15 is a reference voltage input pin, which is connected to the 10Uf capacitor CC37 and grounded.
[0063] The sixth to ninth pins and the sixteenth to nineteenth pins of the chip U15 are signal input pins, which are connected to the analog signals to be collected.
[0064] The eleventh to fourteenth pins of the chip U15 are SPI bus interfaces, which are connected to the SPI bus through resistors R227, R229, R230, and R231.
[0065] Specifically, the domestic component controller takes GD32F470ZIT6 with a main frequency of 240MHz as a core processor, and can smoothly run complex engineering machinery electric control programs. When the engineering machinery works, the main controller MCU receives instructions from the outside (for example, converts the voltage into a voltage through the operation of the rocker, converts the button switch into a switch or receives instructions through the CAN bus), opens or closes the corresponding switch and PWM proportional output, so as to control the hydraulic equipment or electric control equipment to perform corresponding actions.
[0066] In the design of the PWM signal output circuit, since the closed-loop feedback structure is used, the error of the PWM output signal can be controlled within 5%, and the response time is controlled within 100 milliseconds. When collecting analog signals, the sampling period can reach 3-5 milliseconds, which fully meets the sampling period requirement of the engineering machinery electric control system. In addition to the above characteristics, the domestic component controller also has the following characteristics:
[0067] 1. Resistant to high temperature, severe cold, strong vibration, heavy rain, wind sand and other harsh environments;
[0068] 2. Provide CAN, RS232 and other communication interfaces;
[0069] 3. Resistant to the specific electrical disturbance of engineering machinery (surge, static electricity, throw load, etc.).
[0070] Due to the above characteristics, the domestic component controller is suitable for the electric control system application of various engineering machinery, can completely replace the original foreign controller and the controller using foreign electronic components, and can completely achieve self-controlling.
[0071] In summary, by means of the above technical scheme of the utility model, the utility model has the advantages of rich communication interface, rich IO resource, strong computing ability, flexible programming configuration, high protection level, high and low temperature resistance, and the like, and uses a 32-bit embedded processor with a main frequency of 240MHz and a memory matched therewith, and the computing ability fully meets the requirement of continuous iteration and update of the engineering machinery electric control algorithm; the closed-loop feedback regulation mechanism in the utility model ensures that the response time and error control of the PWM output (the response time of the PWM output signal is less than 100 milliseconds, and the error is less than 10 milliamperes) are within the demand range of engineering machinery, which helps to improve the control precision of the hydraulic equipment, fully meets the electrical requirement of the engineering machinery equipment, solves the problem of non-constant PWM output load in the prior art, and further improves the output precision; in the working state, the utility model captures the running parameters of the vehicle in real time through the preset sampling frequency (higher than 200Hz), provides a basis for accurate control and state monitoring, and fully meets the requirement of rapid signal acquisition of the engineering machinery electric control system.
[0072] In the utility model, unless another definite provision and limitation, the term "installation", "arrangement", "connection", "fixation", "screw connection" and so on term should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication or the interaction relationship of two elements inside two elements, unless another definite limitation, for the ordinary skill in the art, can understand the specific meaning of the above-mentioned term in the utility model according to the specific situation.
[0073] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A domestic component controller, comprising a controller housing (1), characterized in that: A controller mainboard (2) is provided inside the controller housing (1), and a plurality of chip output modules (3) and a main controller module (4) are sequentially provided on the controller mainboard (2). An external end of the controller housing (1) is provided with a plug-in IO resource communication module (5); The controller mainboard (2) comprises a bus configuration circuit (201), a signal output feedback circuit (202) and an analog signal sampling circuit (203); The bus configuration circuit (201) is electrically connected to the signal output feedback circuit (202), and the signal output feedback circuit (202) is electrically connected to the analog signal sampling circuit (203).
2. A domestic component controller according to claim 1, characterized in that: The bus configuration circuit (201) includes a chip U46, a resistor R334, a resistor R335, a capacitor C155, a capacitor C156 and a crystal oscillator Y1; The XTAL pin of the chip U46 is respectively connected to one end of the resistor R334 and one end of the resistor R335, the other end of the resistor R334 is respectively connected to one end of the capacitor C155 and the third pin of the crystal oscillator Y1, the other end of the capacitor C155 is grounded, the second pin of the crystal oscillator Y1 is connected to the fourth pin and grounded, the first pin of the crystal oscillator Y1 is respectively connected to one end of the capacitor C156, one end of the resistor R335 and the EXTAL pin of the crystal oscillator Y1, and the other end of the capacitor C156 is grounded.
3. A domestic component controller according to claim 2, characterized in that: The SPI2_NSS pin, SPI2_SCK pin, SPI2_MISO pin and SPI2_MOSI pin of the chip U46 are configured as a serial peripheral interface bus; The CAN1_RX pin, CAN1_TX pin, CAN2_RX pin and CAN2_TX pin of the chip U46 are configured as a CAN bus; The SCL pin and SDA pin of the chip U46 are configured as an I2C bus.
4. A domestic component controller according to claim 3, characterized in that: The signal output feedback circuit (202) includes a chip U18, a diode D9, a resistor R33, a capacitor CC21, a field effect transistor Q30, a resistor R76, a resistor R14, a field effect transistor Q9, a resistor R99, a resistor R151, a diode D28, a capacitor PC11, a resistor SR1, a resistor R150, a capacitor C80, a capacitor C130, an operational amplifier U26, a resistor R313, a resistor R247, a capacitor C81, a resistor R100, a capacitor C82, and a diode D65; The first pin of the chip U18 is connected to one end of the capacitor CC22 and to a +5V power supply, the other end of the capacitor CC22 is grounded, the second pin of the chip U18 is connected to one end of the resistor R150 and one end of the capacitor C130, the other end of the resistor R150 is connected to one end of the capacitor C80 and the third pin of the operational amplifier U26, the other end of the capacitor C80 is grounded, the fourth pin of the operational amplifier U26 is connected to one end of the resistor R313 and one end of the resistor R247, respectively. The other end of the resistor R247 is grounded, the other end of the resistor R313 is respectively connected to the other end of the capacitor C130, the first pin of the operational amplifier U26 and one end of the resistor R100, the other end of the resistor R100 is respectively connected to one end of the capacitor C82 and the cathode of the diode D65, the other end of the capacitor C82 and the cathode of the diode D65 are grounded, the fifth pin of the operational amplifier U26 is connected to one end of the capacitor C81 and to the +3.3V power supply, the capacitor C81 The other end of the operational amplifier U26 is grounded; the second pin of the operational amplifier U26 is grounded; the seventh pin of the chip U18 is connected to the resistor SR1 and one end of the capacitor PC11 respectively, the other end of the capacitor PC11 is connected to the positive electrode of the diode D28 and is grounded, the cathode of the diode D28 is connected to the other end of the resistor SR1, one end of the resistor R76 and the fourth pin of the field effect transistor Q30 respectively, the third pin of the field effect transistor Q30 is connected to the other end of the resistor R76, one end of the capacitor CC21, the One end of R33 is connected to the cathode of the diode D9, the other end of the capacitor CC21 is grounded, the anode of the diode D9 is respectively connected to the other end of the resistor R33, the first pin of the field effect transistor Q30, and one end of the resistor R14, the other end of the resistor R14 is connected to the third pin of the field effect transistor Q9, the second pin of the field effect transistor Q9 is grounded, the first pin of the field effect transistor Q9 is respectively connected to one end of the resistor R99 and one end of the resistor R151, and the other end of the resistor R151 is grounded.
5. A domestic component controller according to claim 4, characterized in that: The field effect transistor Q9 is an N-channel field effect transistor, and the field effect transistor Q30 is a P-channel field effect transistor.