Intelligent UPS (Uninterrupted Power Supply)

Abstract

The utility model provides an intelligent UPS (Uninterrupted Power Supply), which relates to the field of UPSs and supports USB (Universal Serial Bus) and RS232 communication interfaces through the design of integrating various circuit modules and control circuits, 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.

Description

TECHNICAL FIELD

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

[0002] With the increasing demand for reliability of power supply in the fields of industry, communication, hospital, computer business terminal, network server, network equipment, data storage equipment, etc., UPS power supply (uninterruptible power supply) is more and more widely used. UPS power supply is a constant voltage and constant frequency uninterruptible power supply containing energy storage devices (such as batteries) and inverters as the main components. It is widely used to provide uninterrupted power supply for single computer, computer network system or other power electronic equipment. When the mains input is normal, the UPS power supply supplies the mains voltage to the load, at this time the UPS is an AC mains voltage stabilizer, and it also charges the battery in the machine; when the mains is interrupted (accident power failure), the UPS immediately supplies power to the load through the inverter conversion method to maintain the normal work of the load and protect the software and hardware of the load from being damaged.

[0003] The current UPS power supply has low intelligence and is easily disturbed by the outside during use, so the circuit of the current UPS power supply needs to be improved. SUMMARY

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

[0005] The embodiment of the present application provides an intelligent UPS power supply, which comprises

[0006] a CPU for electrically connecting the following circuit;

[0007] a main CPU signal detection circuit for detecting and processing the signals sent by the main CPU to ensure the stable operation of the circuit system;

[0008] a pulse width modulation circuit for controlling the current or voltage in the circuit by adjusting the width of the pulse to realize accurate adjustment of the circuit parameters;

[0009] a BUS voltage detection circuit for detecting the change of the bus voltage in real time to protect the circuit from voltage abnormalities;

[0010] a USB communication circuit for realizing the USB communication between the device and external devices, supporting data transmission and command control;

[0011] an intelligent battery voltage balance detection circuit for detecting the voltage of each battery in the battery pack to realize the balance control of the battery voltage and prolong the service life of the battery.

[0012] An output control circuit for controlling the output state of the device, such as switching on / off, power adjustment, etc.

[0013] An inverter detection circuit for detecting inverter signals in the circuit to ensure the stability and safety of the inverter process.

[0014] A system power-on circuit for controlling the power-on and boot process of the entire circuit system.

[0015] A charging circuit for providing charging function for the internal battery or other energy storage elements of the device.

[0016] An output EMI circuit for reducing electromagnetic interference at the output end of the circuit and improving the electromagnetic compatibility of the circuit.

[0017] An input EMI circuit for reducing electromagnetic interference at the input end of the circuit and protecting the circuit from external electromagnetic interference.

[0018] A USB, RS232 communication interface circuit for realizing various communication modes between the device and external devices.

[0019] An input AC / DC conversion circuit for converting input AC or DC power into the required power form for the circuit system.

[0020] An LCD screen control circuit for controlling the display content and display mode of the LCD display screen and providing a user interactive interface.

[0021] As a preferred, the main CPU signal detection circuit includes a first processor and a second processor, the main CPU signal detection circuit is connected with the main CPU through a high-speed data bus, realizing 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] As a preferred, the pulse width modulation circuit adopts a digital control mode, which can automatically adjust the pulse width according to preset parameters.

[0023] As a preferred, 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] As a preferred, the USB communication circuit supports USB 2.0 or higher version communication protocol, which can realize high-speed data transmission and plug-and-play function.

[0025] As preferred, the output control circuit further comprises overcurrent protection circuit and short circuit protection circuit, which can automatically cut off the power supply when the output current is abnormal, protecting the circuit and the device.

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

[0027] As preferred, the charging circuit adopts intelligent charging algorithm, which can automatically adjust the charging current and voltage according to the state of the battery, realizing fast and safe charging process.

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

[0029] As preferred, the control circuit is also integrated with fault diagnosis and self-recovery functions, which can automatically perform fault diagnosis and attempt self-recovery operation when detecting circuit failure, improving the reliability and stability of the device.

[0030] The beneficial effects of the utility model are as follows:

[0031] The utility model provides an intelligent UPS power supply, the utility model discloses through integrating a variety of circuit modules, the design of control circuit supports USB, RS232 and a variety of communication interfaces such as, so that the device can carry out flexible data exchange with other devices, satisfies the application demand under different scenes, simultaneously, the addition of LCD screen control circuit makes the device can directly show information, improves user interaction experience, the power management of optimization: the design of input / output EMI circuit effectively suppresses electromagnetic interference, protects the circuit from the influence of external electromagnetic environment, in addition, the fine design of output control circuit, inverter detection circuit and system power on circuit realizes the efficient management and control to power supply, ensures that the power requirement of the device under different working conditions is satisfied, and the energy consumption is reduced simultaneously, the integration of main CPU signal detection and pulse width modulation circuit makes the device can efficiently handle various signals, and realizes accurate control to the circuit through pulse width modulation technology, improves the accuracy and efficiency of data processing, the utility model is relatively independent between various modules, is convenient for the quick positioning and maintenance when the device appears the fault, simultaneously, this design also provides the convenience for the subsequent upgrade of the device, and through replacing or upgrading specific module can realize the extension of device function or the improvement of performance. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those of ordinary skill in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

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

[0034] Figure 2 Main CPU signal detection circuit diagram of the present application;

[0035] Figure 3 Pulse width modulation circuit diagram of the present application;

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

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

[0038] Figure 6 Intelligent battery voltage balance detection circuit diagram of the present application;

[0039] Figure 7 Output control circuit diagram of the present application;

[0040] Figure 8 Inverter detection circuit diagram of the present application;

[0041] Figure 9 System power-on circuit diagram of the present application;

[0042] Figure 10 Charging circuit diagram of the present application;

[0043] Figure 11 Output EMI circuit diagram of the present application;

[0044] Figure 12 Input EMI circuit diagram of the present application;

[0045] Figure 13 USB, RS232 communication interface circuit diagram of the present application;

[0046] Figure 14 Input AC, DC switching circuit diagram of the present application;

[0047] Figure 15 LCD screen control circuit diagram of the present application. DETAILED DESCRIPTION

[0048] So that the objectives, technical solutions and advantages of the embodiments of the present application are more apparent, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some 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 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 drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0050] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained 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" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in 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 must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0053] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] As Figures 1-15As shown, the embodiment of the present application provides an intelligent UPS power supply, which comprises

[0055] a CPU, which is electrically connected to the following circuits;

[0056] a main CPU signal detection circuit, which is used for detecting and processing the signals sent by the main CPU to ensure the stable operation of the circuit system;

[0057] a pulse width modulation circuit, which is used for controlling the current or voltage in the circuit by adjusting the width of the pulse to achieve accurate adjustment of the circuit parameters;

[0058] a BUS voltage detection circuit, which is used for real-time detection of the change of the bus voltage to protect the circuit from voltage abnormalities;

[0059] a USB communication circuit, which is used for realizing the USB communication between the device and external devices, supporting data transmission and command control;

[0060] an intelligent battery voltage balance detection circuit, which is used for detecting the voltage of each battery in the battery pack to achieve the balance control of the battery voltage and prolong the service life of the battery;

[0061] an output control circuit, which is used for controlling the output state of the device, such as power on, power adjustment, etc.;

[0062] an inverter detection circuit, which is used for detecting the inverter signal in the circuit to ensure the stability and safety of the inverter process;

[0063] a system power-on circuit, which is used for controlling the power-on and start-up process of the entire circuit system;

[0064] a charging circuit, which is used for providing charging function for the battery or other energy storage elements inside the device;

[0065] an output EMI circuit, which is used for reducing the electromagnetic interference of the circuit output end and improving the electromagnetic compatibility of the circuit;

[0066] an input EMI circuit, which is used for reducing the electromagnetic interference of the circuit input end and protecting the circuit from external electromagnetic interference;

[0067] a USB, RS232 communication interface circuit, which is used for realizing various communication modes between the device and external devices;

[0068] an input AC, DC conversion circuit, which is used for converting the input AC or DC into the power form required by the circuit system;

[0069] an LCD screen control circuit, which is used for controlling the display content and display mode of the LCD display screen to provide a user interactive interface.

[0070] The utility model discloses a kind of integrated multiple circuit modules, the design of control circuit supports USB, RS232 and multiple communication interfaces, so that equipment can be flexibly exchanged with other equipment Data, meet the application needs in different scenarios;At the same time, the addition of LCD screen control circuit enables equipment to display information intuitively, improves user interaction experience;Optimize power management: the design of input / output EMI circuit effectively suppresses electromagnetic interference, protects the circuit from the influence of external electromagnetic environment;In addition, the fine design of output control circuit, inverter detection circuit and system power-on circuit realizes efficient management and control of power supply, ensures that the power requirement of equipment in different working conditions is met, while reducing energy consumption;The integration of main CPU signal detection and pulse width modulation circuit enables equipment to efficiently process various signals, and realizes accurate control of circuit through pulse width modulation technology, improves the accuracy and efficiency of data processing;The utility model is relatively independent between each module, facilitate fast positioning and repair when equipment failure occurs.At the same time, this design also provides convenience for subsequent upgrade of equipment, and the extension of equipment function or the improvement of performance can be realized by replacing or upgrading specific modules.

[0071] As shown in Figure 2 In the embodiment, the main CPU signal detection circuit includes first processor and second processor, the main CPU signal detection circuit is connected with main CPU through high-speed data bus, realizes real-time detection and feedback of signal, the model of first processor is QFP100, the model of second processor is M24C02W.

[0072] As shown in Figure 3 In the embodiment, the pulse width modulation circuit adopts digital control mode, can automatically adjust pulse width according to preset parameter, and the pulse width modulation circuit can significantly reduce the loss of energy on resistance of UPS power supply, thereby improving energy conversion efficiency and reducing system energy consumption, since PWM circuit adopts digital signal control, its response speed is very fast, can react to the change of input signal within very short time, and is suitable for fast response.

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

[0074] As shown in Figure 5 In the embodiment, the USB communication circuit supports USB 2.0 or higher version communication protocol, can realize high-speed data transmission and plug-and-play function, and can also program, adjust and control other control circuits of UPS power supply through USB communication circuit.

[0075] As Figure 7 shown in the embodiment, the output control circuit further includes overcurrent protection circuit and short circuit protection circuit, which can automatically cut off the power supply when the output current is abnormal, protecting the circuit and the device safe.

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

[0077] As Figure 10 shown in the embodiment, the charging circuit adopts intelligent charging algorithm, which can automatically adjust the charging current and voltage according to the state of the battery, realizing fast and safe charging process, the utility model can collect the current and voltage on the charging circuit, and monitor the charging process in real time, and adjust the control strategy as needed to ensure the stability and safety of the charging process.

[0078] As Figure 11 , 12 shown in the embodiment, the output EMI circuit and the input EMI circuit both contain filter elements and shielding structures to effectively reduce electromagnetic interference and improve the electromagnetic compatibility of the circuit.

[0079] As Figures 1-15 shown in the embodiment, the control circuit also integrates fault diagnosis and self-recovery functions, which can automatically perform fault diagnosis when detecting circuit failure, and try to perform self-recovery operation, improving the reliability and stability of the device.

[0080] The above is only the preferred embodiment of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An intelligent UPS power supply, characterized by: Comprising a CPU for the following circuit to be electrically connected; a main CPU signal detection circuit for detecting and processing the signals sent by the main CPU to ensure the stable operation of the circuit system; a pulse width modulation circuit for controlling 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 for real-time detection of the change of the bus voltage to protect the circuit from voltage abnormalities; a USB communication circuit for realizing USB communication between the device and external devices, supporting data transmission and command control; an intelligent battery voltage balance detection circuit for detecting the voltage of each battery in the battery pack to achieve balanced control of the battery voltage and prolong the service life of the battery; an output control circuit for controlling the output state of the device, such as power on / off and power adjustment; an inverter detection circuit for detecting the inverter signal in the circuit to ensure the stability and safety of the inverter process; a system power-on circuit for controlling the power-on and start-up process of the entire circuit system; a charging circuit for providing charging function for the battery or other energy storage elements inside the device; an output EMI circuit for reducing electromagnetic interference at the output end of the circuit to improve the electromagnetic compatibility of the circuit; an input EMI circuit for reducing electromagnetic interference at the input end of the circuit to protect the circuit from external electromagnetic interference; a USB, RS232 communication interface circuit for realizing multiple communication modes between the device and external devices; an input AC, DC conversion circuit for converting the input AC or DC power into the required power form for the circuit system; an LCD screen control circuit for controlling the display content and display mode of the LCD display screen to provide a user interactive interface.

2. The intelligent UPS power supply of claim 1, wherein: The main CPU signal detection circuit includes a first processor and a second processor, which are connected to the main CPU through a high-speed data bus to realize real-time detection and feedback of signals, the first processor is of QFP100 model, and the second processor is of M24C02W model.

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 UPS power supply of claim 1 wherein: 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 of claim 1 wherein, The USB communication circuit supports USB2.0 or higher version communication protocol and can realize high-speed data transmission and plug-and-play function.

6. The intelligent UPS power supply of claim 1 wherein, 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 the device.

7. The intelligent UPS power supply of claim 1 wherein, The inverter detection circuit realizes real-time monitoring and fault warning of the inverter process by detecting the voltage and current changes in the inverter process.

8. The intelligent UPS power supply of claim 1 wherein, The charging circuit adopts an intelligent charging algorithm and can automatically adjust the charging current and voltage according to the state of the battery to realize a fast and safe charging process.

9. The intelligent UPS power supply of claim 1 wherein, The output EMI circuit and the input EMI circuit both comprise filtering elements and shielding structures to effectively reduce electromagnetic interference and improve electromagnetic compatibility of the circuits.

10. The intelligent UPS power supply of any one of claims 1 to 9, wherein, The control circuit is also integrated with fault diagnosis and self-recovery functions, which can automatically perform fault diagnosis when detecting a circuit fault and attempt self-recovery operation, thereby improving the reliability and stability of the device.

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