Multi-channel integrated full-function pressure regulating device

Abstract

The utility model relates to a multi-channel integrated full-function voltage regulating device, which comprises a first monitoring regulation and control circuit connected with a first load and used for monitoring and regulating the working voltage and current of the first load; the second monitoring regulation and control circuit is connected with a second load and is used for monitoring and regulating the working voltage and current of the second load; the first microcontroller is provided with a plurality of groups of connecting pins, is connected with the first monitoring regulation and control circuit through the first group of connecting pins, and is used for receiving and processing the voltage and current data of the first load and regulating the voltage output of the first load; and the first microcontroller is connected with the second monitoring regulation and control circuit through a second group of connecting pins, and is used for receiving and processing the voltage and current data of the second load and regulating the voltage output of the second load. According to the device, accurate and efficient multi-channel voltage regulation is realized through cooperative work of the plurality of monitoring regulation and control circuits and the microcontroller, and the flexibility, the response speed and the expandability of the system are improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic power technology, and in particular to a multi-channel integrated full-function voltage regulating device. Background Technology

[0002] In modern industrial production processes, constant voltage control output via phase modulation of AC voltage is often required. However, constant voltage control requires complex voltage and current measurement and acquisition circuits, as well as complex control algorithms. Traditional control methods typically rely on a single one-to-one control between the controller and the actuator. When the number of controlled devices is large, the number of controllers required also increases, leading to a significant increase in system complexity and cost. Such control systems are usually bulky, occupy a lot of space, and due to the redundant arrangement of controllers, coordination and management between devices become difficult.

[0003] Furthermore, most existing AC constant voltage control systems only possess basic constant voltage control functions and cannot simultaneously meet the monitoring requirements for equipment current, voltage, power, and equipment operating status (such as overload or short-circuit protection). Users typically need to configure additional current meters and overload protectors to achieve comprehensive monitoring of operating status, which further increases the complexity and cost of the system. In the absence of integrated monitoring, managing these independent systems not only increases the difficulty of operation but may also introduce potential faults. Utility Model Content

[0004] Therefore, this utility model provides a multi-channel integrated full-function voltage regulator that integrates voltage, current, power monitoring and overload protection functions, effectively reducing the number of controllers, simplifying system design and reducing overall cost.

[0005] The purpose of this utility model is achieved through the following technical solution: a multi-channel integrated full-function voltage regulating device of this utility model, comprising:

[0006] The first monitoring and control circuit is connected to the first load and is used to monitor and adjust the operating voltage and current of the first load.

[0007] The second monitoring and control circuit is connected to the second load and is used to monitor and regulate the operating voltage and current of the second load.

[0008] The first microcontroller has multiple sets of connection pins. The first microcontroller is connected to the first monitoring and control circuit through the first set of connection pins to receive and process the voltage and current data of the first load and adjust the voltage output of the first load. The first microcontroller is connected to the second monitoring and control circuit through the second set of connection pins to receive and process the voltage and current data of the second load and adjust the voltage output of the second load.

[0009] Optionally, the first set of connection pins includes PA1 / A1 pins, and the first monitoring and control circuit includes:

[0010] An AC current sampling unit includes a current transformer T2, a resistor R18, and a capacitor C4, wherein the current transformer T2 is connected in parallel with the resistor R18 and the capacitor C4;

[0011] The controllable rectification trigger unit includes a silicon controlled rectifier (SCR) S1, a resistor R12, an optocoupler IC1, and a resistor R13. The collector of the optocoupler IC1 is connected to the anode of the SCR S1 through the resistor R12. The emitter of the optocoupler IC1 is connected between the cathode of the SCR S1 and the current output terminal of the current transformer T2. The positive terminal of the optocoupler IC1 is connected to the PA1 / A1 pin, and the negative terminal of the optocoupler IC1 is grounded through the resistor R13.

[0012] The external device interface P1 includes a first connection port, a second connection port, a third connection port, and a fourth connection port. The fourth connection port is connected to the second connection port. The third connection port is connected to the cathode of the thyristor S1 through the current transformer T2. The anode of the thyristor S1 is connected to the first connection port.

[0013] Optionally, the first set of connection pins further includes PA6 / A6 pin, VSS pin, and PA7 / A7 pin, and the first monitoring and control circuit further includes:

[0014] The current full-wave rectifier unit includes capacitor C4, resistors R5, R6, R8, and R17, first operational amplifier IC3B, second operational amplifier IC5B, diode D2, and diode D4.

[0015] One end of capacitor C4 is connected to pin PA6 / A6 via resistors R5 and R6 connected in series, and the other end is connected to the positive input terminal of the first operational amplifier IC3B. The positive input terminal of the first operational amplifier IC3B is also grounded, and its negative input terminal is connected between resistors R5 and R6. Its output terminal is connected to the negative input terminal of the second operational amplifier IC5B via diode D4 and resistor R8 connected in series. The negative input terminal of the first operational amplifier IC3B is also connected to its output terminal via diode D2.

[0016] The positive input terminal of the second operational amplifier IC5 is connected to the VSS pin, and the output terminal is connected to the PA7 / A7 pin through resistor R17; the positive input terminal of the second operational amplifier IC5 is also grounded.

[0017] Optionally, the full-wave rectifier unit further includes resistor R10, resistor R15, capacitor C2, and capacitor C6;

[0018] One end of resistor R10 is connected between capacitor C4 and resistor R5, and the other end is connected between resistor R8 and the negative input terminal of the second operational amplifier IC5B.

[0019] One end of resistor R15 is connected to the PA7 / A7 pin through resistor R17, and the other end is connected between resistor R8 and the negative input terminal of the second operational amplifier IC5B;

[0020] One end of the capacitor C2 is connected between the resistors R15 and R17, and the other end is connected between the resistor R8 and the negative input terminal of the second operational amplifier IC5B.

[0021] One end of the capacitor C6 is connected between the resistor R17 and the PA7 / A7 pin, and the other end is connected to the positive input terminal of the second operational amplifier IC5.

[0022] Optionally, the first monitoring and control circuit further includes:

[0023] An AC voltage sampling unit includes a voltage transformer T1, a resistor R14, and a capacitor C3; the current input terminal of the voltage transformer T1 is connected to the second connection port of the external device interface P1 through a resistor R2, and the current output terminal is connected to the first connection port of the external device interface P1 through a resistor R1.

[0024] One end of the resistor R14 is connected to the positive terminal of the voltage transformer T1, and the other end is connected to the negative terminal of the voltage transformer T1. The resistor R14 and the capacitor C3 are connected in parallel, and the capacitor C3 is grounded.

[0025] Optionally, the first set of connection pins further includes PA5 / A5 pins, and the first monitoring and control circuit further includes:

[0026] The voltage full-wave rectifier unit includes a third operational amplifier IC4B, a fourth operational amplifier IC6B, resistors R3, R4, R7, R9, R11, R16, diodes D1 and D3, capacitors C1 and C5.

[0027] The positive input terminal of the third operational amplifier IC4B is grounded, and the negative input terminal is connected to the output terminal of the third operational amplifier IC4B through a capacitor C1 and a resistor R11 connected in parallel. The output terminal is connected to the PA5 / A5 pin through a resistor R16.

[0028] One end of capacitor C5 is connected between resistor R16 and the PA5 / A5 pin, and the other end is grounded;

[0029] The negative input terminal of the fourth operational amplifier IC6B is connected to one end of the capacitor C3 through resistor R3, and the positive input terminal is connected to the other end of the capacitor C3. The output terminal is connected to the negative input terminal of the third operational amplifier IC4B through diode D3 and resistor R7 connected in series.

[0030] The cathode of diode D1 is connected to the negative input terminal of the fourth operational amplifier IC6B, and the anode is connected between the output terminal of the fourth operational amplifier IC6B and diode D3.

[0031] One end of the resistor R4 is connected to the negative input terminal of the fourth operational amplifier IC6B, and the other end is connected between the diode D3 and the resistor R7;

[0032] One end of the resistor R9 is connected to the capacitor C3, and the other end is connected between the resistor R7 and the negative input terminal of the third operational amplifier IC4B.

[0033] Optionally, the first set of connection pins further includes a PA14 pin, and the first monitoring and control circuit further includes:

[0034] The zero-crossing detection unit includes resistor R20, diode D5, resistor R19, and zero-crossing comparator IC7;

[0035] The positive input terminal of the zero-crossing comparator IC7 is connected to the fourth connection port of the external device interface P1 through resistor R20, the negative input terminal is connected to the third connection port of the external device interface P1, the output terminal is connected to the PA14 pin, and the ground terminal is grounded; the output terminal of the zero-crossing comparator IC7 is also connected to the power supply VCC through resistor R19.

[0036] The cathode of diode D5 is connected between the positive input terminal of zero-crossing comparator IC7 and the resistor R20, and the anode is connected to the negative input terminal of zero-crossing comparator IC7.

[0037] Optionally, the third set of pins of the first microcontroller includes PB7 / R pins and PB6 / T pins, and the multi-channel integrated full-function voltage regulator further includes:

[0038] The touchscreen, connected to the PB7 / R and PB6 / T pins, is used to receive data transmitted by the first microcontroller and to transmit user-input control signals to the first microcontroller.

[0039] Optionally, the second set of pins of the first microcontroller includes PA0 / A0 pin, PA2 / A2 pin, PA3 / A3 pin, PA4 / A4 pin, and PA13 pin; the second monitoring and control circuit has the same circuit structure as the first monitoring and control circuit, and the first microcontroller is connected to the second monitoring and control circuit through the PA0 / A0 pin, PA2 / A2 pin, PA3 / A3 pin, PA4 / A4 pin, and PA13 pin.

[0040] Optionally, the multi-channel integrated full-function voltage regulator further includes a second microcontroller, a third monitoring and control circuit, and a fourth monitoring and control circuit. The circuit structures of the third and fourth monitoring and control circuits are the same as those of the first monitoring and control circuit. The circuit connection relationship between the second microcontroller and the third and fourth monitoring and control circuits is the same as that between the first microcontroller and the first and second monitoring and control circuits.

[0041] The first microcontroller is communicatively connected to the second microcontroller.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] This utility model's multi-channel integrated full-function voltage regulator, through the integration of a microcontroller and multiple monitoring and control circuits, enables multi-channel voltage, current, and power monitoring and constant voltage regulation on a single control platform. Furthermore, it improves the efficiency and accuracy of the control system through functions such as current feedback and overload protection. This integrated design avoids the redundant configuration of multiple independent controllers, instruments, and protection devices found in traditional systems, thereby significantly reducing system size and hardware costs, and improving the overall system stability and reliability.

[0044] Furthermore, the multi-channel independent adjustment function of this utility model's multi-channel integrated full-function voltage regulator allows each channel to precisely regulate voltage according to different needs, enabling the system to flexibly adapt to different operating requirements in multiple application scenarios. The independence of each channel not only improves adjustment accuracy but also enhances system flexibility, further meeting the voltage regulation needs under diverse operating conditions. Simultaneously, when the power frequency voltage fluctuates, the system can quickly track and adjust the voltage, ensuring the output voltage remains constant and providing stable power. The device also features intelligent fault diagnosis and automatic adjustment functions, providing real-time feedback on equipment status and automatically optimizing adjustment strategies, effectively ensuring continuous safe operation and performance optimization, further reducing maintenance and operation difficulty, and improving user experience. Attached Figure Description

[0045] Figure 1A schematic diagram of the structure of a multi-channel integrated full-function voltage regulator according to an embodiment of the present invention is shown;

[0046] Figure 2 A circuit diagram of a first monitoring and control circuit according to an embodiment of the present invention is shown;

[0047] Figure 3 A schematic diagram of the structure of a multi-channel integrated full-function voltage regulator according to another embodiment of the present invention is shown. Detailed Implementation

[0048] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the drawings, not all of the structure. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0049] The terms "comprising" and "having," and any variations thereof, used in this invention, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0050] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0051] Figure 1 A schematic diagram of a multi-channel integrated full-function voltage regulator according to an embodiment of the present invention is shown. Figure 1 As shown, this multi-channel integrated full-function voltage regulator includes:

[0052] The first monitoring and control circuit 210 is connected to the first load 110 and is used to monitor and adjust the operating voltage and current of the first load 110.

[0053] The second monitoring and control circuit 220 is connected to the second load 120 and is used to monitor and regulate the operating voltage and current of the second load 120.

[0054] The first microcontroller 310 has multiple sets of connection pins. The first microcontroller 310 is connected to the first monitoring and control circuit 210 through the first set of connection pins to receive and process the voltage and current data of the first load 110 and adjust the voltage output of the first load 110. The first microcontroller 310 is connected to the second monitoring and control circuit 220 through the second set of connection pins to receive and process the voltage and current data of the second load 120 and adjust the voltage output of the second load 120.

[0055] refer to Figure 1 The first microcontroller 310 is microcontroller IC2. The first monitoring and control circuit 210 is connected to the first load 110, which monitors the operating voltage and current of the load in real time and transmits the monitored voltage and current data to the first set of connection pins of the first microcontroller IC2. The second monitoring and control circuit 220 is connected to the second load 120 and performs the same monitoring and data transmission tasks. Through these monitoring circuits, the system can obtain the real-time operating status of each load. The first microcontroller IC2 is connected to the first and second monitoring and control circuits 220 through its multiple sets of connection pins. After receiving the voltage and current data from the first monitoring and control circuit 210, the first microcontroller IC2 performs data analysis and processing based on the set control algorithm (such as PID control, fuzzy control, etc.), calculates the appropriate adjustment command, and sends the control command to the first monitoring and control circuit 210 through its corresponding output pin, instructing the voltage regulation module how to adjust the output voltage of the load. For the adjustment of the second load 120, the first microcontroller IC2 also receives the voltage and current data from the second monitoring and control circuit 220 and performs the same processing to ensure that the voltage of each load is maintained within a predetermined range.

[0056] Each monitoring and control circuit not only monitors voltage and current but also provides overload protection. When the load current exceeds the safe range, the first microcontroller IC2 can promptly identify the issue and take appropriate protective measures, such as powering off, reducing the output voltage, or activating other protection mechanisms, to prevent equipment damage or safety accidents. The first microcontroller IC2 has a built-in intelligent fault diagnosis function that can monitor the operating status of each channel in real time. In the event of a fault or abnormal situation, the device can automatically detect the problem and trigger an alarm or take self-repair strategies. It can also adaptively adjust according to the load usage to optimize the stability and accuracy of the voltage output.

[0057] This multi-channel integrated full-function voltage regulator supports independent operation of multiple channels, each controlled by a separate monitoring and control circuit. The microcontroller IC2 coordinates the operation of multiple monitoring and control circuits, ensuring that the voltage regulation of each channel remains synchronized with other channels. Through an internal synchronization mechanism, the system ensures that each load, while being regulated independently, does not interfere with the voltage regulation of other channels, thus maintaining a stable and accurate voltage output even when multiple channels are operating in parallel.

[0058] According to the above embodiments, by integrating a microcontroller with multiple monitoring and control circuits, multi-channel voltage, current, and power monitoring and constant voltage regulation can be achieved on a single control platform. Furthermore, functions such as current feedback and overload protection improve the efficiency and accuracy of the control system. This integrated design avoids the redundant configuration of multiple independent controllers, instruments, and protection devices found in traditional systems, thereby significantly reducing system size and hardware costs, and improving the overall system stability and reliability.

[0059] Figure 2 A circuit diagram of a first monitoring and control circuit 210 according to an embodiment of the present invention is shown. Figure 2 As shown, the first set of connection pins of the first microcontroller IC2 includes PA1 / A1 pins, and the first monitoring and control circuit 210 includes:

[0060] The AC current sampling unit includes a current transformer T2, a resistor R18, and a capacitor C4. The current transformer T2 is connected in parallel with the resistor R18 and the capacitor C4.

[0061] Current transformer T2 is used to detect the AC current in the load. When AC current flows through the load, current transformer T2 senses the change in current and generates a voltage signal proportional to the load current. Resistor R18 and capacitor C4 are connected in parallel with current transformer T2 to form a filtering and signal processing circuit. Resistor R18 acts as a current limiter and voltage divider, while capacitor C4 smooths and filters the signal to reduce the influence of AC noise on the signal, thereby ensuring the accuracy and stability of the current sampling signal. The current signal acquired by this circuit is transmitted to the microcontroller for further processing and adjustment.

[0062] The controllable rectification trigger unit includes a thyristor S1, a resistor R12, an optocoupler IC1, and a resistor R13. The collector of the optocoupler IC1 is connected to the anode of the thyristor S1 through the resistor R12. The emitter of the optocoupler IC1 is connected between the cathode of the thyristor S1 and the current output terminal of the current transformer T2. The positive terminal of the optocoupler IC1 is connected to the PA1 / A1 pin, and the negative terminal of the optocoupler IC1 is grounded through the resistor R13.

[0063] Optocoupler IC1 is used to achieve signal isolation between the first microcontroller IC2 and the rectifier circuit, thereby effectively protecting the microcontroller from interference from high-voltage components. The optocoupler converts the input electrical signal (such as a control signal) into an optical signal, transmits it to the photosensitive element at the output, and then converts the optical signal back into an electrical signal. This achieves seamless signal transmission while maintaining electrical isolation. Specifically, the positive terminal of the optocoupler is connected to the PA1 / A1 pin of the first microcontroller IC2, which serves as the control signal output terminal of the microcontroller. Through the PA1 / A1 pin, the first microcontroller IC2 can send a control signal to the optocoupler IC1 to activate its operation. The collector of the optocoupler is connected to the anode of the thyristor S1 through resistor R12, and the emitter is grounded through resistor R13. The microcontroller controls the current flow by adjusting the emitter signal of the optocoupler, thereby precisely triggering or suppressing the conduction state of the thyristor S1, and adjusting the phase and amplitude of the output current. This control process ensures the stability and precise regulation of the output current, while achieving safe isolation between the microcontroller and high-voltage components.

[0064] The external device interface P1 includes a first connection port, a second connection port, a third connection port and a fourth connection port. The fourth connection port is connected to the second connection port. The third connection port is connected to the cathode of the thyristor S1 through a current transformer T2. The anode of the thyristor S1 is connected to the first connection port.

[0065] The first, second, third, and fourth connection ports of the external device interface P1 are responsible for signal transmission between the external load and the regulation circuit. Specifically, the first and second connection ports are connected to the device load to transmit the regulated current signal. The third and fourth connection ports are connected to the external AC power supply to ensure a stable voltage and current input to the load. It is worth noting that the fourth connection port is connected to the second connection port, while the third connection port is connected to the cathode of the thyristor S1 via the current transformer T2. The anode of the thyristor S1 is connected to the first connection port, thereby achieving synchronous signal transmission and regulation. Through this series of precisely configured ports, current sampling, signal processing, rectification regulation, and final current output can work efficiently together within the system, ensuring the stability and accuracy of the entire power regulation process.

[0066] In some embodiments, reference Figure 2 The first set of connection pins mentioned above also includes PA6 / A6 pin, VSS pin, and PA7 / A7 pin. The first monitoring and control circuit 210 also includes:

[0067] The full-wave current rectifier unit consists of capacitor C4, resistors R5, R6, R8, and R17, first operational amplifier IC3B, second operational amplifier IC5B, diode D2, and diode D4. Its function is to convert AC current signals into full-wave DC current signals for subsequent processing and monitoring.

[0068] One end of capacitor C4 is connected to pin PA6 / A6 via resistors R5 and R6 connected in series, and the other end is connected to the positive input of the first operational amplifier IC3B. The positive input of the first operational amplifier IC3B is also grounded, and its negative input is connected between resistors R5 and R6. Its output is connected to the negative input of the second operational amplifier IC5B via diode D4 and resistor R8 connected in series. The negative input of the first operational amplifier IC3B is also connected to its output via diode D2.

[0069] The positive input of the second operational amplifier IC5 is connected to the VSS pin, and the output is connected to the PA7 / A7 pin through resistor R17; the positive input of the second operational amplifier IC5 is also grounded.

[0070] In this full-wave rectifier circuit, capacitor C4 is connected in series with resistors R5 and R6 to pin PA6 / A6 of the first microcontroller IC2. Pin PA6 / A6 receives signals from the alternating current. These signals are first filtered through resistors R5 and R6, and then input to the positive input of the first operational amplifier IC3B. Operational amplifier IC3B amplifies the signal, enhancing its strength and stability. Its negative input is connected through resistors R5 and R6, forming a feedback loop that allows the operational amplifier to generate a corresponding output based on the input signal.

[0071] The output of the first operational amplifier IC3B is connected to a resistor R8 via diode D4, thus rectifying the AC signal into a unidirectional DC signal. In this case, diode D4 acts as a rectifier, ensuring the unidirectional nature of the signal. The rectified signal is further stabilized by resistor R8 and then transmitted to the negative input of the second operational amplifier IC5B. The positive input of the second operational amplifier IC5B is grounded, while its output is connected to the PA7 / A7 pin via resistor R17. The PA7 / A7 pin is connected to the ADC module of the first microcontroller IC2, allowing the microcontroller to read and monitor the current signal. Through this signal link, the microcontroller can precisely adjust the system output based on real-time current feedback.

[0072] The VSS pin is connected as ground to ensure the normal operation of the second operational amplifier and provide a stable reference voltage. This design, through efficient signal amplification, rectification, and feedback mechanisms, enables the processed current signal to accurately reflect the load condition, providing reliable data support for the microcontroller and thus ensuring the accuracy and stability of system regulation.

[0073] In addition, the negative input terminal of the first operational amplifier IC3B is connected back to its output terminal through diode D2 to form a feedback loop, further ensuring the rectification accuracy and stability of the signal.

[0074] In some embodiments, reference Figure 2 The full-wave rectifier unit also includes resistors R10 and R15, capacitor C2, and capacitor C6.

[0075] One end of resistor R10 is connected between capacitor C4 and resistor R5, and the other end is connected between resistor R8 and the negative input terminal of the second operational amplifier IC5B. By connecting resistor R10 in this position, it provides additional filtering for the signal, helping to eliminate noise or high-frequency interference generated by other circuits. This makes the rectification process of the current signal smoother, avoiding signal distortion or fluctuations.

[0076] One end of resistor R15 is connected to pin PA7 / A7 via resistor R17, and the other end is connected between resistor R8 and the negative input terminal of the second operational amplifier IC5B. One end of capacitor C2 is connected between resistors R15 and R17, and the other end is connected between resistor R8 and the negative input terminal of the second operational amplifier IC5B. Resistor R15 and capacitor C2 work together to stabilize the voltage at the negative input terminal, preventing rapid changes in load current from affecting the system. Capacitor C2 further smooths the signal waveform through filtering, reducing possible spikes or abrupt changes and ensuring smooth signal transmission.

[0077] One end of capacitor C6 is connected between resistor R17 and the PA7 / A7 pin, and the other end is connected to the positive input terminal of the second operational amplifier IC5. By connecting the PA7 / A7 pin and the positive input terminal of the second operational amplifier, capacitor C6 provides a stable reference voltage for the input signal, further enhancing signal stability and preventing the impact of instantaneous voltage fluctuations on system regulation accuracy. Capacitor C6 also helps filter out high-frequency noise, improving the system's anti-interference capability.

[0078] Through the ingenious combination of these components, the current signal, after rectification, filtering, amplification, and stabilization, is output to the PA7 / A7 pin via the second operational amplifier IC5B for sampling by the ADC module of the first microcontroller IC2. This series of components works together to effectively enhance the system's ability to process current signals, ensuring high-precision current monitoring and regulation.

[0079] In some embodiments, reference Figure 2 The first monitoring and control circuit 210 also includes:

[0080] The AC voltage sampling unit includes a voltage transformer T1, a resistor R14, and a capacitor C3. The current input terminal of the voltage transformer T1 is connected to the second connection port of the external device interface P1 through a resistor R2, and the current output terminal is connected to the first connection port of the external device interface P1 through a resistor R1. One end of the resistor R14 is connected to the positive terminal of the voltage transformer T1, and the other end is connected to the negative terminal of the voltage transformer T1. The resistor R14 and the capacitor C3 are connected in parallel, and the capacitor C3 is grounded.

[0081] The voltage sampling process is implemented through a voltage transformer T1 and a series of peripheral components. First, an external AC voltage signal is input through the second connection port of the external device interface P1, to which the current input terminal of the voltage transformer T1 is connected. The voltage transformer T1 converts the input high-voltage AC signal into a low-voltage signal and outputs it through resistor R1 to the first connection port of the external device interface P1, thus achieving voltage isolation and transformation. The function of resistor R2 is to effectively transmit the input signal to the sensing element of the voltage transformer, ensuring the integrity of the voltage signal. To accurately sample and process this voltage signal, resistor R14 is connected between the positive and negative sensing terminals of the voltage transformer T1. Resistor R14 is used to limit the current conduction path and adjust the sensitivity of the voltage signal. By selecting an appropriate resistance value, the amplitude of the voltage signal transmitted to subsequent circuits can be precisely controlled, avoiding signal distortion or overload problems, thereby ensuring signal quality during measurement and adjustment. To further smooth and stabilize the voltage signal, capacitor C3 is connected in parallel with resistor R14, acting as a ground to filter and remove high-frequency components caused by electromagnetic interference or noise. The presence of capacitor C3 effectively reduces voltage fluctuations, making the input AC voltage signal more stable and providing higher accuracy for subsequent signal processing.

[0082] In summary, through the voltage conversion of voltage transformer T1, the sensitivity adjustment of resistor R14, and the filtering effect of capacitor C3, the system can accurately sample and stabilize the external AC voltage. Finally, the processed voltage signal is sent to the microcontroller for analysis and regulation to ensure a constant output of the load voltage, thereby improving the stability and reliability of the entire system.

[0083] In some embodiments, reference Figure 2 The first set of connection pins mentioned above also includes PA5 / A5 pins, and the first monitoring and control circuit 210 also includes:

[0084] The voltage full-wave rectifier unit includes a third operational amplifier IC4B, a fourth operational amplifier IC6B, resistors R3, R4, R7, R9, R11, and R16, diodes D1 and D3, and capacitors C1 and C5. The positive input terminal of the third operational amplifier IC4B is grounded, and its negative input terminal is connected to the output terminal of IC4B via a parallel connection of capacitor C1 and resistor R11. The output terminal is connected to the PA5 / A5 pin via resistor R16. One end of capacitor C5 is connected between resistor R16 and the PA5 / A5 pin, and the other end is grounded. The negative input terminal of the fourth operational amplifier IC6B is connected to one end of capacitor C3 via resistor R3, and its positive input terminal is connected to the other end of capacitor C3. Its output terminal is connected to the negative input terminal of the third operational amplifier IC4B via a series connection of diode D3 and resistor R7. The cathode of diode D1 is connected to the negative input terminal of the fourth operational amplifier IC6B, and its anode is connected between the output terminal of the fourth operational amplifier IC6B and diode D3. One end of resistor R4 is connected to the negative input terminal of the fourth operational amplifier IC6B, and the other end is connected between diode D3 and resistor R7. One end of resistor R9 is connected to capacitor C3, and the other end is connected between resistor R7 and the negative input terminal of the third operational amplifier IC4B.

[0085] The third operational amplifier IC4B of the full-wave voltage rectifier unit is grounded at its positive input terminal, and its negative input terminal is connected to the signal source through a capacitor C1 and a resistor R11 connected in parallel for filtering and removal of high-frequency noise. This configuration ensures the stability of the input signal, and after amplification, the signal is transmitted to the PA5 / A5 pin of the first microcontroller IC2 through a resistor R16. Capacitor C5 is connected in parallel between resistor R16 and the PA5 / A5 pin to further smooth the signal, reduce the impact of voltage fluctuations on subsequent circuits, and ensure stable signal transmission.

[0086] Meanwhile, the negative input terminal of the fourth operational amplifier IC6B is connected to capacitor C3 via resistor R3, and the positive input terminal is connected to the other end of capacitor C3, providing signal coupling and filtering to prevent high-frequency interference. Its output terminal is connected to the negative input terminal of the third operational amplifier IC4B via a series connection of diode D3 and resistor R7, forming a rectifier circuit. Diodes D1 and D3 together convert the AC signal into a unidirectional DC signal, providing a stable current output. Resistor R4 adjusts the signal amplitude to ensure the output signal matches subsequent circuitry, while resistor R9 further optimizes the filtering effect and stabilizes the feedback loop, improving the overall signal stability and processing accuracy.

[0087] The input AC voltage signal is sampled by a voltage transformer and transmitted to a full-wave voltage rectifier unit. After filtering and amplification by the third operational amplifier IC4B, the signal is sent to the PA5 / A5 pin for microcontroller sampling. Subsequently, the signal is rectified into a unidirectional current by the fourth operational amplifier IC6B. Diodes D1 and D3 ensure the signal is converted into a stable DC current, resistors R4 and R7 adjust the signal amplitude, and capacitors C3 and C1 further filter the signal to ensure smoothness. This circuit improves signal stability and sampling accuracy through effective filtering, amplification, and rectification, avoids noise interference, and ensures that the microcontroller can quickly and accurately adjust the output voltage. Simultaneously, the flexible adjustment of signal amplitude and conduction path optimizes the system response speed and adjustment accuracy.

[0088] In some embodiments, reference Figure 2 The first set of connection pins mentioned above also includes pin PA14, and the first monitoring and control circuit 210 also includes:

[0089] The zero-crossing detection unit includes resistor R20, diode D5, resistor R19, and zero-crossing comparator IC7. The positive input of comparator IC7 is connected to the fourth connection port of external device interface P1 via resistor R20, the negative input is connected to the third connection port of external device interface P1, the output is connected to pin PA14, and the ground terminal is grounded. The output of comparator IC7 is also connected to the power supply VCC via resistor R19. The cathode of diode D5 is connected between the positive input of comparator IC7 and resistor R20, and the anode is connected to the negative input of comparator IC7.

[0090] The AC voltage signal is input through the fourth connection port of the external device interface P1, and transmitted to the positive input terminal of the zero-crossing comparator IC7 via resistor R20. The negative input terminal receives the AC voltage signal from the third connection port. The zero-crossing comparator IC7 compares the input signals in real time to determine whether the voltage signal has crossed zero (i.e., the zero-crossing point of the AC voltage). When the voltage signal crosses zero, the zero-crossing comparator IC7 generates a high-level pulse signal and outputs it to pin PA14, notifying the first microcontroller IC2 that a zero-crossing event has been detected. Simultaneously, the cathode of diode D5 is connected between the positive input terminal of the zero-crossing comparator IC7 and resistor R20, and the anode is connected to its negative input terminal, providing protection against reverse current or high-frequency noise affecting the zero-crossing comparator IC7, thus ensuring the accuracy and reliability of the zero-crossing detection process.

[0091] This zero-crossing detection unit accurately captures the zero-crossing point of the AC voltage signal, providing a stable zero-crossing signal to the first microcontroller IC2. The zero-crossing comparator IC7 monitors the input signal in real time, ensuring that changes in the voltage waveform are promptly fed back, thus helping the system to more accurately synchronize and regulate the voltage output, especially maintaining phase accuracy when regulating AC voltage. Diode D5 effectively suppresses errors that may be caused by reverse current or momentary overshoot, enhancing the anti-interference capability and reliability of zero-crossing detection. Pin PA14 transmits the zero-crossing signal to the microcontroller, enabling the system to respond quickly to voltage changes, achieving fast and accurate voltage regulation, greatly improving system stability, regulation accuracy, and operating efficiency.

[0092] Figure 3 A structural schematic diagram of a multi-channel integrated full-function voltage regulator according to another embodiment of the present invention is shown.

[0093] In some embodiments, reference Figure 2 and Figure 3 The third set of pins for the aforementioned first microcontroller IC2 includes PB7 / R pins and PB6 / T pins. This multi-channel integrated full-function voltage regulator also includes:

[0094] The touchscreen 400 is connected to the PB7 / R pin and the PB6 / T pin, and is used to receive data transmitted by the first microcontroller IC2 and transmit the control signals input by the user to the first microcontroller IC2.

[0095] The touchscreen 400 is connected to the PB7 / R and PB6 / T pins of the first microcontroller IC2, forming a bidirectional communication interface. In this configuration, the PB7 / R and PB6 / T pins are responsible for data reception and data transmission, respectively. The touchscreen 400 receives data from the microcontroller through the PB7 / R pin, which may contain the current system status or operational feedback information. When the user inputs data onto the touchscreen 400, the touchscreen 400 converts these input signals into electrical signals and transmits them to the first microcontroller IC2 through the PB6 / T pin. The microcontroller IC2 performs corresponding operations based on the received control signals, such as adjusting the voltage or output current.

[0096] By connecting the touchscreen 400 to the PB7 / R and PB6 / T pins, the system achieves a highly efficient human-machine interface. Users can control and adjust various device parameters in real time via the touchscreen 400, while the microcontroller dynamically adjusts device settings by receiving signals from the touchscreen 400. The bidirectional data transmission capability of the PB7 / R and PB6 / T pins ensures fast and accurate signal transmission, enhancing system response speed and control precision. The integration of the touchscreen 400 makes operation more intuitive, eliminating the need for complex buttons or external interfaces, greatly improving system usability and interactivity. Simultaneously, this configuration allows the microcontroller to provide timely feedback on device status, ensuring real-time monitoring and adjustment of the system, keeping the device in optimal operating condition at all times.

[0097] In some embodiments, reference Figure 2 The second set of pins of the first microcontroller IC2 includes PA0 / A0 pin, PA2 / A2 pin, PA3 / A3 pin, PA4 / A4 pin and PA13 pin; the second monitoring and control circuit 220 has the same circuit structure as the first monitoring and control circuit 210, and the first microcontroller IC2 is connected to the second monitoring and control circuit 220 through PA0 / A0 pin, PA2 / A2 pin, PA3 / A3 pin, PA4 / A4 pin and PA13 pin.

[0098] In the above embodiment, the first microcontroller IC2 is connected to the second monitoring and control circuit 220 via its second set of pins (PA0 / A0, PA2 / A2, PA3 / A3, PA4 / A4, and PA13). These pins are responsible for receiving and processing voltage and current data from the second monitoring and control circuit 220 and converting them into signals that the microcontroller can process. The structure of the second monitoring and control circuit 220 is the same as that of the first monitoring and control circuit 210, ensuring consistent control and feedback between the two channels.

[0099] In some embodiments, reference Figure 3 The multi-channel integrated full-function voltage regulator also includes a second microcontroller 320, a third monitoring and control circuit 230, and a third monitoring and control circuit 240. The circuit structures of the third monitoring and control circuit 230 and the third monitoring and control circuit 240 are the same as those of the first monitoring and control circuit 210. The circuit connection relationship between the second microcontroller 320 and the third monitoring and control circuit 230 and the third monitoring and control circuit 240 is the same as the circuit connection relationship between the first microcontroller 310 and the first monitoring and control circuit 210 and the second monitoring and control circuit 220. The first microcontroller 310 and the second microcontroller 320 are communicatively connected.

[0100] The connection relationships between the second microcontroller 320 and the third monitoring and control circuit 230 and the fourth monitoring and control circuit 240 are the same as those between the first microcontroller 310 and the first monitoring and control circuit 210 and the second monitoring and control circuit 220. This means that the second microcontroller 320 is connected to the third and fourth monitoring and control circuits 240 through similar pins to monitor the voltage and current of these channels in real time and make corresponding adjustments, which will not be elaborated further here. The voltage and current monitoring and adjustment of the third load 130 by the third monitoring and control circuit 230 and the voltage and current monitoring and adjustment of the fourth load 140 by the fourth monitoring and control circuit 240 are also in the same way as the voltage and current monitoring and adjustment of the first load 110 by the first monitoring and control circuit 210, which will not be elaborated further here.

[0101] In addition, the first microcontroller 310 and the second microcontroller 320 exchange data and coordinate control through a communication interface to ensure coordinated operation between multiple channels.

[0102] By employing a multi-microcontroller and multi-monitoring control circuit architecture, the system enables independent monitoring and regulation of multiple channels. Each monitoring and control circuit independently manages the voltage and current sampling and regulation of its respective channel, while the microcontrollers, through parallel processing, rapidly respond to changes in each channel, ensuring precise regulation of the operating state of each load. The communication connection between the first microcontroller 310 and the second microcontroller 320 allows multiple microcontrollers to work collaboratively and share data in real time, thereby optimizing system resource utilization and improving overall response speed and control accuracy. This distributed control scheme not only enhances the system's processing power but also effectively distributes the load on the microcontrollers, reducing latency. By introducing the second microcontroller 320 and more monitoring and control circuits, the system's scalability and flexibility are improved, supporting the regulation and control of more channels, meeting complex load requirements, and ensuring precise control of voltage and current in each channel.

[0103] According to the above embodiments, the multi-channel independent adjustment function of the multi-channel integrated full-function voltage regulator of this utility model allows each channel to perform precise voltage regulation according to different needs, enabling the system to flexibly adapt to different working requirements in multiple application scenarios. The independence of each channel not only improves the adjustment accuracy but also enhances the system's flexibility, further meeting the voltage regulation needs under diverse operating conditions. Simultaneously, when the power frequency voltage fluctuates, the system can quickly perform voltage tracking adjustment to ensure that the output voltage remains constant and provides stable power supply. The device also features intelligent fault diagnosis and automatic adjustment functions, capable of providing real-time feedback on equipment status and automatically optimizing adjustment strategies, effectively ensuring the continuous safe operation and performance optimization of the equipment, further reducing maintenance and operation difficulties, and improving the user experience.

[0104] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0105] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A multi-channel integrated full-function voltage regulating device, characterized in that, include: The first monitoring and control circuit is connected to the first load and is used to monitor and regulate the operating voltage and current of the first load. The second monitoring and control circuit is connected to the second load and is used to monitor and regulate the operating voltage and current of the second load. The first microcontroller has multiple sets of connection pins. The first microcontroller is connected to the first monitoring and control circuit through the first set of connection pins to receive and process the voltage and current data of the first load and adjust the voltage output of the first load. The first microcontroller is connected to the second monitoring and control circuit through the second set of connection pins to receive and process the voltage and current data of the second load and adjust the voltage output of the second load.

2. The multi-channel integrated full-function voltage regulating device according to claim 1, characterized in that, The first set of connection pins includes PA1 / A1 pins, and the first monitoring and control circuit includes: An AC current sampling unit includes a current transformer T2, a resistor R18, and a capacitor C4, wherein the current transformer T2 is connected in parallel with the resistor R18 and the capacitor C4; The controllable rectification trigger unit includes a silicon controlled rectifier (SCR) S1, a resistor R12, an optocoupler IC1, and a resistor R13. The collector of the optocoupler IC1 is connected to the anode of the SCR S1 through the resistor R12. The emitter of the optocoupler IC1 is connected between the cathode of the SCR S1 and the current output terminal of the current transformer T2. The positive terminal of the optocoupler IC1 is connected to the PA1 / A1 pin, and the negative terminal of the optocoupler IC1 is grounded through the resistor R13. The external device interface P1 includes a first connection port, a second connection port, a third connection port, and a fourth connection port. The fourth connection port is connected to the second connection port. The third connection port is connected to the cathode of the thyristor S1 through the current transformer T2. The anode of the thyristor S1 is connected to the first connection port.

3. The multi-channel integrated full-function voltage regulating device according to claim 2, characterized in that, The first set of connection pins also includes PA6 / A6 pin, VSS pin, and PA7 / A7 pin. The first monitoring and control circuit also includes: The current full-wave rectifier unit includes capacitor C4, resistors R5, R6, R8, and R17, first operational amplifier IC3B, second operational amplifier IC5B, diode D2, and diode D4. One end of capacitor C4 is connected to pin PA6 / A6 via resistors R5 and R6 connected in series, and the other end is connected to the positive input terminal of the first operational amplifier IC3B. The positive input terminal of the first operational amplifier IC3B is also grounded, and its negative input terminal is connected between resistors R5 and R6. Its output terminal is connected to the negative input terminal of the second operational amplifier IC5B via diode D4 and resistor R8 connected in series. The negative input terminal of the first operational amplifier IC3B is also connected to its output terminal via diode D2. The positive input terminal of the second operational amplifier IC5 is connected to the VSS pin, and the output terminal is connected to the PA7 / A7 pin through resistor R17; the positive input terminal of the second operational amplifier IC5 is also grounded.

4. The multi-channel integrated full-function voltage regulating device according to claim 3, characterized in that, The full-wave rectifier unit also includes resistor R10, resistor R15, capacitor C2, and capacitor C6; One end of resistor R10 is connected between capacitor C4 and resistor R5, and the other end is connected between resistor R8 and the negative input terminal of the second operational amplifier IC5B. One end of resistor R15 is connected to the PA7 / A7 pin through resistor R17, and the other end is connected between resistor R8 and the negative input terminal of the second operational amplifier IC5B; One end of the capacitor C2 is connected between the resistors R15 and R17, and the other end is connected between the resistor R8 and the negative input terminal of the second operational amplifier IC5B. One end of the capacitor C6 is connected between the resistor R17 and the PA7 / A7 pin, and the other end is connected to the positive input terminal of the second operational amplifier IC5.

5. The multi-channel integrated full-function voltage regulating device according to claim 2, characterized in that, The first monitoring and control circuit also includes: An AC voltage sampling unit includes a voltage transformer T1, a resistor R14, and a capacitor C3; the current input terminal of the voltage transformer T1 is connected to the second connection port of the external device interface P1 through a resistor R2, and the current output terminal is connected to the first connection port of the external device interface P1 through a resistor R1. One end of the resistor R14 is connected to the positive terminal of the voltage transformer T1, and the other end is connected to the negative terminal of the voltage transformer T1. The resistor R14 and the capacitor C3 are connected in parallel, and the capacitor C3 is grounded.

6. The multi-channel integrated full-function voltage regulating device according to claim 5, characterized in that, The first set of connection pins also includes PA5 / A5 pins, and the first monitoring and control circuit also includes: The voltage full-wave rectifier unit includes a third operational amplifier IC4B, a fourth operational amplifier IC6B, resistors R3, R4, R7, R9, R11, R16, diodes D1 and D3, capacitors C1 and C5. The positive input terminal of the third operational amplifier IC4B is grounded, and the negative input terminal is connected to the output terminal of the third operational amplifier IC4B through a capacitor C1 and a resistor R11 connected in parallel. The output terminal is connected to the PA5 / A5 pin through a resistor R16. One end of capacitor C5 is connected between resistor R16 and the PA5 / A5 pin, and the other end is grounded; The negative input terminal of the fourth operational amplifier IC6B is connected to one end of the capacitor C3 through resistor R3, and the positive input terminal is connected to the other end of the capacitor C3. The output terminal is connected to the negative input terminal of the third operational amplifier IC4B through diode D3 and resistor R7 connected in series. The cathode of diode D1 is connected to the negative input terminal of the fourth operational amplifier IC6B, and the anode is connected between the output terminal of the fourth operational amplifier IC6B and diode D3. One end of the resistor R4 is connected to the negative input terminal of the fourth operational amplifier IC6B, and the other end is connected between the diode D3 and the resistor R7; One end of the resistor R9 is connected to the capacitor C3, and the other end is connected between the resistor R7 and the negative input terminal of the third operational amplifier IC4B.

7. The multi-channel integrated full-function voltage regulating device according to claim 2, characterized in that, The first set of connection pins also includes pin PA14, and the first monitoring and control circuit also includes: The zero-crossing detection unit includes resistor R20, diode D5, resistor R19, and zero-crossing comparator IC7; The positive input terminal of the zero-crossing comparator IC7 is connected to the fourth connection port of the external device interface P1 through resistor R20, the negative input terminal is connected to the third connection port of the external device interface P1, the output terminal is connected to the PA14 pin, and the ground terminal is grounded; the output terminal of the zero-crossing comparator IC7 is also connected to the power supply VCC through resistor R19. The cathode of diode D5 is connected between the positive input terminal of zero-crossing comparator IC7 and the resistor R20, and the anode is connected to the negative input terminal of zero-crossing comparator IC7.

8. The multi-channel integrated full-function voltage regulating device according to claim 1, characterized in that, The third set of pins for the first microcontroller includes PB7 / R pins and PB6 / T pins. The multi-channel integrated full-function voltage regulator also includes: The touchscreen, connected to the PB7 / R and PB6 / T pins, is used to receive data transmitted by the first microcontroller and to transmit user-input control signals to the first microcontroller.

9. A multi-channel integrated full-function voltage regulating device according to any one of claims 1-8, characterized in that, The second set of pins of the first microcontroller includes PA0 / A0 pin, PA2 / A2 pin, PA3 / A3 pin, PA4 / A4 pin and PA13 pin; the second monitoring and control circuit has the same circuit structure as the first monitoring and control circuit, and the first microcontroller is connected to the second monitoring and control circuit through the PA0 / A0 pin, PA2 / A2 pin, PA3 / A3 pin, PA4 / A4 pin and PA13 pin.

10. A multi-channel integrated full-function voltage regulating device according to claim 9, characterized in that, The multi-channel integrated full-function voltage regulator also includes a second microcontroller, a third monitoring and control circuit, and a fourth monitoring and control circuit. The circuit structures of the third and fourth monitoring and control circuits are the same as those of the first monitoring and control circuit. The circuit connection relationship between the second microcontroller and the third and fourth monitoring and control circuits is the same as that between the first microcontroller and the first and second monitoring and control circuits. The first microcontroller is communicatively connected to the second microcontroller.

Images