Intelligent UPS (Uninterrupted Power Supply)

Abstract

The invention provides an intelligent UPS (Uninterrupted Power Supply), and relates to the field of UPSs, the intelligent UPS supports a plurality of communication interfaces such as a USB (Universal Serial Bus) and an RS232 (Recommend Standard 232) through the design of integrating a plurality of circuit modules and a control circuit, so that equipment can carry out flexible data exchange with other equipment, and the application requirements in different scenes are met; meanwhile, the LCD screen control circuit is added, so that the equipment can visually display information; the design of an input / output EMI (Electro-Magnetic Interference) circuit effectively suppresses electromagnetic interference and protects the circuit from being influenced by an external electromagnetic environment; besides, due to the fine design of the output control circuit, the inversion detection circuit and the system power supply starting-up circuit, efficient management and control of a power supply are achieved, it is ensured that the power supply requirements of the device in different working states are met, the device can efficiently process various signals due to the integration of main CPU signal detection and a pulse width modulation circuit, and the reliability of the device is improved. And accurate control of the circuit is realized through a pulse width modulation technology, and the accuracy and efficiency of data processing are improved.

Description

Technical Field

[0001] The present application relates to the field of UPS power supplies, and in particular to an intelligent UPS power supply. Background Art

[0002] With the increasing requirements for power supply reliability in the fields of industry, communications, national defense, hospitals, computer business terminals, network servers, network equipment, data storage equipment, etc., UPS power supply (uninterruptible power supply) has been more and more widely used. UPS power supply is a constant voltage and constant frequency uninterruptible power supply with energy storage devices (such as batteries) and inverters as the main components. It is widely used to provide uninterruptible power supply to a single computer, computer network system or other power electronic equipment. When the mains input is normal, the UPS power supply stabilizes the mains and supplies it to the load. At this time, the UPS is an AC mains voltage stabilizer, and it also charges the battery inside the machine; when the mains power is interrupted (accidental power outage), the UPS immediately uses the power of the battery inside the machine to continue to supply power to the load through the method of inverter conversion, so that the load maintains normal operation and protects the load software and hardware from damage.

[0003] The current UPS power supply has a low level of intelligence and is easily disturbed by the outside world during use. Therefore, the circuit of the current UPS power supply needs to be improved. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide an intelligent UPS power supply, which can solve the above-mentioned technical problems.

[0005] The present application embodiment provides an intelligent UPS power supply, comprising:

[0006] A CPU, for electrically connecting the following circuits;

[0007] A main CPU signal detection circuit, used to detect and process the signal sent by the main CPU to ensure the stable operation of the circuit system;

[0008] A pulse width modulation circuit is used to control the current or voltage in the circuit by adjusting the width of the pulse to achieve precise adjustment of the circuit parameters;

[0009] A BUS voltage detection circuit is used to detect the change of bus voltage in real time to protect the circuit from the influence of voltage anomaly;

[0010] A USB communication circuit, used to implement USB communication between the device and external devices, supporting data transmission and command control;

[0011] An intelligent battery voltage balance detection circuit is used to detect the voltage of each battery in the battery pack, realize the balance control of battery voltage and extend the battery life;

[0012] An output control circuit, used to control the output status of the device, such as power on / off, power adjustment, etc.;

[0013] An inverter detection circuit is used to detect the inverter signal in the circuit to ensure the stability and safety of the inverter process;

[0014] A system power startup circuit, used to control the power-on and startup process of the entire circuit system;

[0015] A charging circuit for charging a battery or other energy storage element inside the device;

[0016] An output EMI circuit is used to reduce the electromagnetic interference at the output end of the circuit and improve the electromagnetic compatibility of the circuit;

[0017] An input EMI circuit to reduce electromagnetic interference at the circuit input and protect the circuit from external electromagnetic interference;

[0018] A USB and RS232 communication interface circuit, used to realize multiple communication modes between the device and external devices;

[0019] An input AC, DC conversion circuit, used to convert the input AC or DC power into the power form required by the circuit system;

[0020] An LCD screen control circuit is used to control the display content and display mode of the LCD display screen and provide a user interaction interface.

[0021] Preferably, the main CPU signal detection circuit includes a first processor and a second processor. The main CPU signal detection circuit is connected to the main CPU via a high-speed data bus to achieve real-time detection and feedback of signals. The model of the first processor is QFP100, and the model of the second processor is M24C02W.

[0022] Preferably, the pulse width modulation circuit adopts a digital control method and can automatically adjust the pulse width according to preset parameters.

[0023] Preferably, the intelligent battery voltage balance detection circuit includes a battery voltage detection unit and a voltage balance control unit, which can realize automatic detection and balance adjustment of the voltage of each battery in the battery pack.

[0024] Preferably, the USB communication circuit supports USB 2.0 or higher communication protocols, and can achieve high-speed data transmission and plug-and-play functions.

[0025] Preferably, the output control circuit also includes an overcurrent protection circuit and a short-circuit protection circuit, which can automatically cut off the power supply when the output current is abnormal to protect the safety of the circuit and equipment.

[0026] Preferably, the inverter detection circuit realizes real-time monitoring and fault warning of the inverter process by detecting voltage and current changes during the inverter process.

[0027] Preferably, the charging circuit adopts an intelligent charging algorithm, which can automatically adjust the charging current and voltage according to the state of the battery to achieve a fast and safe charging process.

[0028] Preferably, the output EMI circuit and the input EMI circuit both include filtering elements and shielding structures to effectively reduce electromagnetic interference and improve the electromagnetic compatibility of the circuit.

[0029] Preferably, the control circuit also integrates fault diagnosis and self-recovery functions, and can automatically perform fault diagnosis when a circuit fault is detected, and attempt to perform self-recovery operations, thereby improving the reliability and stability of the equipment.

[0030] Beneficial effects of the present invention:

[0031] The present invention provides an intelligent UPS power supply. The present invention integrates multiple circuit modules, and the design of the control circuit supports multiple communication interfaces such as USB and RS232, so that the device can flexibly exchange data with other devices to meet the application requirements in different scenarios; at the same time, the addition of the LCD screen control circuit enables the device to intuitively display information, which improves the user interaction experience; optimizes power management: the design of the input / output EMI circuit effectively suppresses electromagnetic interference and protects the circuit from the influence of the external electromagnetic environment; in addition, the fine design of the output control circuit, the inverter detection circuit and the system power startup circuit realizes efficient management and control of the power supply, ensures that the power supply requirements of the device in different working states are met, and reduces energy consumption; the integration of the main CPU signal detection and the pulse width modulation circuit enables the device to efficiently process various signals, and realizes precise control of the circuit through the pulse width modulation technology, which improves the accuracy and efficiency of data processing; the modules of the present invention are relatively independent, which is convenient for rapid positioning and maintenance when the device fails. At the same time, this design also provides convenience for the subsequent upgrade of the device, and the expansion of the device function or the improvement of performance can be achieved by replacing or upgrading specific modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 A CPU circuit diagram of the present invention;

[0034] Figure 2 The main CPU signal detection circuit diagram of the present invention;

[0035] Figure 3 A pulse width modulation circuit diagram of the present invention;

[0036] Figure 4 The BUS voltage detection circuit diagram of the present invention;

[0037] Figure 5 The USB communication circuit diagram of the present invention;

[0038] Figure 6 The intelligent battery voltage balance detection circuit diagram of the present invention;

[0039] Figure 7 is an output control circuit diagram of the present invention;

[0040] Figure 8 The inverter detection circuit diagram of the present invention;

[0041] Fig. 9 The system power supply startup circuit diagram of the present invention;

[0042] Fig.10 is a charging circuit diagram of the present invention;

[0043] Fig.11 is the output EMI circuit diagram of the present invention;

[0044] Fig.12 is the input EMI circuit diagram of the present invention;

[0045] Fig.13 The USB and RS232 communication interface circuit diagram of the present invention;

[0046] Fig.14 The input AC and DC conversion circuit diagram of the present invention;

[0047] Fig.15 This is a circuit diagram of the LCD screen control of the present invention. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0050] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0051] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0052] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0053] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] like Figure 1-15As shown, the embodiment of the present application provides an intelligent UPS power supply, including

[0055] A CPU, for electrically connecting the following circuits;

[0056] A main CPU signal detection circuit, used to detect and process the signal sent by the main CPU to ensure the stable operation of the circuit system;

[0057] A pulse width modulation circuit is used to control the current or voltage in the circuit by adjusting the width of the pulse to achieve precise adjustment of the circuit parameters;

[0058] A BUS voltage detection circuit is used to detect the change of bus voltage in real time to protect the circuit from the influence of voltage anomaly;

[0059] A USB communication circuit, used to implement USB communication between the device and external devices, supporting data transmission and command control;

[0060] An intelligent battery voltage balance detection circuit is used to detect the voltage of each battery in the battery pack, realize the balance control of battery voltage and extend the battery life;

[0061] An output control circuit, used to control the output status of the device, such as power on / off, power adjustment, etc.;

[0062] An inverter detection circuit is used to detect the inverter signal in the circuit to ensure the stability and safety of the inverter process;

[0063] A system power startup circuit, used to control the power-on and startup process of the entire circuit system;

[0064] A charging circuit for charging a battery or other energy storage element inside the device;

[0065] An output EMI circuit is used to reduce the electromagnetic interference at the output end of the circuit and improve the electromagnetic compatibility of the circuit;

[0066] An input EMI circuit to reduce electromagnetic interference at the circuit input and protect the circuit from external electromagnetic interference;

[0067] A USB and RS232 communication interface circuit, used to realize multiple communication modes between the device and external devices;

[0068] An input AC, DC conversion circuit, used to convert the input AC or DC power into the power form required by the circuit system;

[0069] An LCD screen control circuit is used to control the display content and display mode of the LCD display screen and provide a user interaction interface.

[0070] The present invention integrates multiple circuit modules, and the design of the control circuit supports multiple communication interfaces such as USB and RS232, so that the device can flexibly exchange data with other devices to meet the application requirements in different scenarios; at the same time, the addition of the LCD screen control circuit enables the device to intuitively display information, which improves the user interaction experience; optimizes power management: the design of the input / output EMI circuit effectively suppresses electromagnetic interference and protects the circuit from the influence of the external electromagnetic environment; in addition, the fine design of the output control circuit, the inverter detection circuit and the system power startup circuit realizes efficient management and control of the power supply, ensures that the power supply requirements of the device in different working states are met, and reduces energy consumption; the integration of the main CPU signal detection and the pulse width modulation circuit enables the device to efficiently process various signals, and realizes precise control of the circuit through the pulse width modulation technology, which improves the accuracy and efficiency of data processing; the modules of the present invention are relatively independent, which is convenient for rapid positioning and maintenance when the device fails. At the same time, this design also provides convenience for the subsequent upgrade of the device, and the expansion of the device function or the improvement of performance can be achieved by replacing or upgrading specific modules.

[0071] like Figure 2 As shown, in this embodiment, the main CPU signal detection circuit includes a first processor and a second processor. The main CPU signal detection circuit is connected to the main CPU through a high-speed data bus to achieve real-time detection and feedback of signals. The model of the first processor is QFP100, and the model of the second processor is M24C02W.

[0072] like Figure 3 As shown, in this embodiment, the pulse width modulation circuit adopts a digital control method and can automatically adjust the pulse width according to preset parameters. The pulse width modulation circuit can reduce the UPS power supply and can significantly reduce the energy loss in the resistor, thereby improving the energy conversion efficiency and reducing the system energy consumption. Since the PWM circuit adopts digital signal control, its response speed is very fast and can respond to the change of the input signal in a very short time, which is suitable for the need for fast response.

[0073] like Figure 6 As shown, in this embodiment, the intelligent battery voltage balance detection circuit includes a battery voltage detection unit and a voltage balance control unit, which can realize automatic detection and balance adjustment of the voltage of each battery in the battery pack.

[0074] like Figure 5 As shown, in this embodiment, the USB communication circuit supports USB 2.0 or higher communication protocols, can achieve high-speed data transmission and plug-and-play functions, and can also program, adjust and control other control circuits of the UPS power supply through the USB communication circuit.

[0075] like Figure 7 As shown, in this embodiment, the output control circuit also includes an overcurrent protection circuit and a short-circuit protection circuit, which can automatically cut off the power supply when the output current is abnormal to protect the circuit and equipment safety.

[0076] like Figure 8 As shown, in this embodiment, the inverter detection circuit realizes real-time monitoring and fault warning of the inverter process by detecting the voltage and current changes during the inverter process. Through real-time detection and fault warning, the inverter detection circuit can take measures before the problem expands, such as cutting off the power supply or switching to the backup power supply, thereby avoiding damage to the inverter or the entire power system and improving the reliability and stability of the system.

[0077] like Fig.10 As shown, in this embodiment, the charging circuit adopts an intelligent charging algorithm, which can automatically adjust the charging current and voltage according to the state of the battery to achieve a fast and safe charging process. The present invention can monitor the charging process in real time by collecting the current and voltage on the charging circuit, and adjust the control strategy as needed to ensure the stability and safety of the charging process.

[0078] like Fig.11 , 12 As shown, in this embodiment, the output EMI circuit and the input EMI circuit both include filtering elements and shielding structures to effectively reduce electromagnetic interference and improve the electromagnetic compatibility of the circuit.

[0079] like Figure 1-15 As shown, in this embodiment, the control circuit also integrates fault diagnosis and self-recovery functions, and can automatically perform fault diagnosis when a circuit fault is detected, and attempt to perform self-recovery operations, thereby improving the reliability and stability of the equipment.

[0080] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An intelligent UPS power supply, characterized in that: include A CPU, for electrically connecting the following circuits; A main CPU signal detection circuit, used to detect and process the signal sent by the main CPU to ensure the stable operation of the circuit system; A pulse width modulation circuit is used to control the current or voltage in the circuit by adjusting the width of the pulse to achieve precise adjustment of the circuit parameters; A BUS voltage detection circuit is used to detect the change of bus voltage in real time to protect the circuit from the influence of voltage anomaly; A USB communication circuit, used to implement USB communication between the device and external devices, supporting data transmission and command control; An intelligent battery voltage balance detection circuit is used to detect the voltage of each battery in the battery pack, realize the balance control of battery voltage and extend the battery life; An output control circuit is used to control the output status of the device, such as power on / off, power adjustment, etc. An inverter detection circuit is used to detect the inverter signal in the circuit to ensure the stability and safety of the inverter process; A system power startup circuit, used to control the power-on and startup process of the entire circuit system; A charging circuit is used to charge the battery or other energy storage components inside the device; an output EMI circuit is used to reduce the electromagnetic interference at the output end of the circuit and improve the electromagnetic compatibility of the circuit; An input EMI circuit to reduce electromagnetic interference at the circuit input and protect the circuit from external electromagnetic interference; A USB and RS232 communication interface circuit, used to realize multiple communication modes between the device and external devices; An input AC, DC conversion circuit, used to convert the input AC or DC power into the power form required by the circuit system; An LCD screen control circuit is used to control the display content and display mode of the LCD display screen and provide a user interaction interface.

2. The intelligent UPS power supply according to claim 1, characterized in that: The main CPU signal detection circuit includes a first processor and a second processor. The main CPU signal detection circuit is connected to the main CPU via a high-speed data bus to achieve real-time detection and feedback of signals. The model of the first processor is QFP100, and the model of the second processor is M24C02W.

3. The intelligent UPS power supply according to claim 1, characterized in that: The pulse width modulation circuit adopts a digital control method and can automatically adjust the pulse width according to preset parameters.

4. The intelligent battery voltage balance detection circuit includes a battery voltage detection unit and a voltage balance control unit, which can realize automatic detection and balance adjustment of the voltage of each battery in the battery pack.

5. The intelligent UPS power supply according to claim 1, characterized in that: The USB communication circuit supports USB2.0 or higher communication protocols and can achieve high-speed data transmission and plug-and-play functions.

6. The intelligent UPS power supply according to claim 1, characterized in that: The output control circuit also includes an overcurrent protection circuit and a short-circuit protection circuit, which can automatically cut off the power supply when the output current is abnormal to protect the circuit and equipment safety.

7. The intelligent UPS power supply according to claim 1, characterized in that: The inverter detection circuit realizes real-time monitoring and fault early warning of the inverter process by detecting the voltage and current changes during the inverter process.

8. The intelligent UPS power supply according to claim 1, characterized in that: The charging circuit adopts an intelligent charging algorithm, which can automatically adjust the charging current and voltage according to the state of the battery to achieve a fast and safe charging process.

9. The intelligent UPS power supply according to claim 1, characterized in that: The output EMI circuit and the input EMI circuit both include filtering elements and shielding structures to effectively reduce electromagnetic interference and improve the electromagnetic compatibility of the circuit.

10. An intelligent UPS power supply according to any one of claims 1 to 9, characterized in that: The control circuit also integrates fault diagnosis and self-recovery functions. It can automatically perform fault diagnosis when a circuit fault is detected and attempt to perform self-recovery operations to improve the reliability and stability of the equipment.

Images