Multistage power supply output circuit with intelligent monitoring function

Abstract

The utility model provides a multistage power supply output circuit with an intelligent monitoring function, which comprises an input module, a control module, an intelligent monitoring module and an output module, and is characterized in that the input module comprises an AC-DC module, a DC-DC module, a commercial power input interface and a DC power supply input interface; the commercial power input interface is electrically connected with the AC-DC module, the AC-DC module is used for converting commercial power into DC 24V voltage and outputting the DC 24V voltage, and the DC power input interface is electrically connected with the DC-DC voltage reduction module. According to the invention, the requirements of different loads and working conditions can be met, and the energy efficiency and the operation safety are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of multi-stage power output circuits, and in particular relates to a multi-stage power output circuit with an intelligent monitoring function. Background Art

[0002] With the rapid development of modern science and technology, users are increasingly using advanced equipment, and these advanced electrical devices are placing increasingly stringent demands on power supplies. In addition to requiring diverse power supply output voltages to meet the power needs of different applications, monitoring the power supply system to ensure safe operation is also crucial. Furthermore, DC power supplies with multiple voltage and current levels are often required for various scenarios, such as on-site commissioning of electrical equipment, testing in scientific research laboratories, and industrial production processes.

[0003] However, existing power supply circuits have more or less some problems, mainly including single power output, low energy conversion efficiency, lack of real-time monitoring function, poor output stability, low accuracy and insufficient safety. Utility Model Content

[0004] To solve the above problems existing in the prior art, the present invention provides a multi-stage power output circuit with intelligent monitoring function to meet the needs of different loads and working conditions and improve energy efficiency and operational safety. The technical solution of this application is as follows:

[0005] A multi-stage power output circuit with intelligent monitoring function, comprising an input module, a control module, an intelligent monitoring module and an output module, wherein the input module comprises an AC-DC module, a DC-DC module, a mains input interface and a DC power input interface; the mains input interface is electrically connected to the AC-DC module, the AC-DC module is used to convert the mains into a DC24V voltage output, the DC power input interface is electrically connected to the DC-DC step-down module, the DC-DC step-down module is used to convert the DC voltage into a DC24V voltage output, the control module is electrically connected to the input module, the output module and the intelligent monitoring module, the control module is used to regulate the output module to output different voltage levels; the output module comprises a 24V to ±15V voltage conversion circuit, a 24V to 13V voltage conversion circuit, a 13V to 12V voltage conversion circuit, a 24V to 6V voltage conversion circuit and a 6V to 5V voltage conversion circuit, the 24V to ±15V voltage conversion circuit comprises capacitors C1, C2, C3, C 4, C9, C10, C11, C12, C13 inductors L4, L5, L6, L7 and power module U1, one end of the capacitor C10 is grounded, and the other end is connected to the input end of the power module U1, one end of the capacitors C1, C2, C3, C4, C9, C11, C12 and C13 are all grounded, the other ends of the capacitors C1 and C4 are connected to the -15V power output end of the power module U1, the other end of the capacitor C2 is connected to one end of the inductors L4 and L5, the other end of the inductor L4 is connected to the Connect the -15V power output terminal of the power module U1, the other end of the inductor L5 is connected to the other end of the capacitor C3, the other ends of the capacitors C9 and C11 are both connected to the +15V power output terminal of the power module U1, the other end of the capacitor C12 is connected to one end of the inductors L6 and L7, the other end of the inductor L6 is connected to the +15V power output terminal of the power module U1, the other end of the inductor L7 is connected to the other end of the capacitor C13, and the capacitors C4, C9 and C10 are electrolytic capacitors.

[0006] Furthermore, the 24V to 13V voltage conversion circuit includes capacitors C16, C17, C18, C19, C20, inductor L9, resistor R2, resistor R3, resistor R5, resistor R6, resistor R7 and buck converter U2, one end of the resistors R3 and R7 are connected to the EN terminal of the buck converter U2, the other end of the resistor R3 is grounded, the other end of the resistor R7 is connected to the VIN terminal of the buck converter U2, and one end of the resistor R6, capacitors C16, C17, C19 and C20 are connected to The other ends of the capacitors C16 and C17 are connected to one end of the inductor L9, the other end of the inductor L9 is connected to the SW end of the buck converter U2, the other ends of the capacitors C19 and C20 are connected to the VIN end of the buck converter U2, one end of the resistor R5 is connected to the BST end of the buck converter U2, the other end of the resistor R5 is connected to one end of the capacitor C18, the other end of the capacitor C18 is connected to the SW end of the buck converter U2, and the capacitors C16 and C19 are electrolytic capacitors.

[0007] Furthermore, the 13V to 12V voltage conversion circuit includes resistors R1, R4, capacitors C14, C15, C21, C22, an inductor L8 and a bipolar linear regulator U3, one end of the capacitors C14, C15, C21, C22 and the resistor R4 are all grounded, the other end of the resistor R4 and one end of the resistor R1 are connected to the ADJ port of the bipolar linear regulator U3, the other end of the resistor R1 is connected to the VOUT port of the bipolar linear regulator U3, the other end of the capacitors C14 and C15 are connected to the VOUT port of the bipolar linear regulator U3, one end of the inductor L8 is the 13V voltage input end, the other end of the inductor L8 is connected to the VIN port of the bipolar linear regulator U3, the capacitors C21 and C22 are connected to the VIN port of the bipolar linear regulator U3, and the capacitor C21 is an electrolytic capacitor.

[0008] Furthermore, the 24V to 6V voltage conversion circuit includes resistors R19, R20, R22, R23, R25, capacitors C31, C32, C33, C34, C35, an inductor L11 and a buck converter U4, one end of the resistors R20, R23, capacitors C31, C32, C34 and C35 are all grounded, the other end of the resistor R20 and one end of the resistor R25 are connected to the EN end of the buck converter U4, the other end of the capacitor C31, the other end of C32 and one end of the resistor R19 are connected to one end of the inductor L11, and the other end of the inductor L11 is connected to The SW terminal of the buck converter U4 is connected, the other end of the resistor R19 and the other end of the resistor R23 are connected to the FB terminal of the buck converter U4, one end of the resistor R22 is connected to the BST terminal of the buck converter U4, the other end of the resistor R22 is connected to one end of the capacitor C33, the other end of the capacitor C33 is connected to the SW terminal of the buck converter U4, the other ends of the capacitors C34 and C35 are connected to the VIN terminal of the buck converter U4, and the other end of the resistor R25 is connected to the VIN terminal of the buck converter U4. The capacitors C31 and C34 are electrolytic capacitors.

[0009] Furthermore, the 6V to 5V voltage conversion circuit includes: resistors R18, R21, inductor L10, capacitors C29, C30, C36, C37 and a bipolar linear regulator U5, one end of the resistor R21, capacitors C29, C30, C36 and C37 are all grounded, the other ends of the capacitors C29 and C30 are connected to the VOUT end of the bipolar linear regulator U5, one end of the resistor R18 is connected to the VOUT end of the bipolar linear regulator U5, the other end of the resistor R18 is connected to the ADJ end of the bipolar linear regulator U5, the other ends of the capacitors C36 and C37 are connected to the VIN end of the bipolar linear regulator U5, one end of the inductor L10 is connected to the VIN end of the bipolar linear regulator U5, the other end of the resistor R21 is connected to the ADJ end of the bipolar linear regulator U5, and the capacitor C36 is an electrolytic capacitor.

[0010] Furthermore, the intelligent monitoring module integrates an MCU, a storage unit, a monitoring sensor, a safety protection unit and an intelligent power management unit, and is used to monitor the output current, voltage and power in real time, as well as provide overload, short circuit and overheating protection functions.

[0011] Compared with the prior art, the present invention has the following beneficial technical effects:

[0012] 1. Through the cooperation of multi-level power output and intelligent monitoring system, accurate power supply for different loads and working conditions is achieved, improving energy conversion efficiency and circuit operation stability;

[0013] 2. The intelligent monitoring system provides real-time monitoring and safety protection functions, enhancing the safety of the circuit;

[0014] 3. The output module includes multiple output interfaces with different voltage levels, and each interface has independent control and protection functions to ensure the stability and safety of the output;

[0015] 4. Through modularization, each module, such as input module, monitoring system and output module, can be combined and upgraded more flexibly, which is convenient for maintenance and expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural block diagram of a multi-stage power output circuit with intelligent monitoring function of the utility model;

[0017] Figure 2 This is the circuit diagram of the 24V to ±15V voltage conversion circuit of the utility model;

[0018] Figure 3 This is a circuit diagram of the 24V to 13V and 13V to 12V voltage conversion circuit of the utility model;

[0019] Figure 4 This is a circuit diagram of the 24V to 6V and 6V to 5V voltage conversion circuit of the utility model. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 As shown, a multi-stage power output circuit with intelligent monitoring function includes an input module 11, a control module 12, an intelligent monitoring module 13 and an output module 14, wherein the input module 11 includes an AC-DC module, a DC-DC module, a mains input interface and a DC power input interface; the mains input interface is electrically connected to the AC-DC module, the AC-DC module is used to convert the mains into a DC24V voltage output, the DC power input interface is electrically connected to the DC-DC step-down module, the DC-DC step-down module is used to convert the DC voltage into a DC24V voltage output, the control module 12 is electrically connected to the input module 11, the output module 14 and the intelligent monitoring module 13, the control module 12 is used to regulate the output module to output different voltage levels; the output module 14 includes a 24V to ±15V voltage conversion circuit, a 24V to 13V voltage conversion circuit, a 13V to 12V voltage conversion circuit, a 24V to 6V voltage conversion circuit and a 6V to 5V voltage conversion circuit. As Figure 2As shown, the 24V to ±15V voltage conversion circuit includes capacitors C1, C2, C3, C4, C9, C10, C11, C12, C13, inductors L4, L5, L6, L7 and a power module U1. One end of the capacitor C10 is grounded, and the other end is connected to the input end of the power module U1. One end of the capacitors C1, C2, C3, C4, C9, C11, C12 and C13 are all grounded, and the other ends of the capacitors C1 and C4 are connected to the -15V power output end of the power module U1. The other end of the capacitor C2 is connected to the inductor L4 and One end of L5 and the other end of the inductor L4 are connected to the -15V power output terminal of the power module U1, the other end of the inductor L5 is connected to the other end of the capacitor C3, the other ends of the capacitors C9 and C11 are both connected to the +15V power output terminal of the power module U1, the other end of the capacitor C12 is connected to one end of the inductors L6 and L7, the other end of the inductor L6 is connected to the +15V power output terminal of the power module U1, and the other end of the inductor L7 is connected to the other end of the capacitor C13. The capacitors C4, C9 and C10 are electrolytic capacitors.

[0022] The control module 12 is used to regulate the output module 14 to output different voltage levels; the intelligent monitoring module 13 integrates an MCU, a storage unit, a monitoring sensor, a safety protection unit and an intelligent power management unit to monitor the output current, voltage and power in real time, and has overload, short circuit and overheating protection functions; the input module 11 converts the input mains power and direct current into DC24V through an AC-DC module and a DC-DC step-down module; the MCU, as the core of the system, coordinates and controls various signals on the mainboard to ensure stable operation of the circuit; the output module 14 converts DC24V into ±15V, 13V, 12V, 6V and 5V, and improves the voltage output accuracy through an LC filter circuit and an LDO voltage regulator module.

[0023] The output module 14 includes six output interfaces with different voltage levels, and each interface has independent control and protection functions.

[0024] Further, such as Figure 3As shown, the 24V to 13V voltage conversion circuit includes capacitors C16, C17, C18, C19, C20, inductor L9, resistor R2, resistor R3, resistor R5, resistor R6, resistor R7 and buck converter U2, one end of the resistors R3 and R7 are connected to the EN terminal of the buck converter U2, the other end of the resistor R3 is grounded, the other end of the resistor R7 is connected to the VIN terminal of the buck converter U2, and one end of the resistor R6, capacitors C16, C17, C19 and C20 are all grounded The other ends of the capacitors C16 and C17 are connected to one end of the inductor L9, the other end of the inductor L9 is connected to the SW end of the buck converter U2, the other ends of the capacitors C19 and C20 are connected to the VIN end of the buck converter U2, one end of the resistor R5 is connected to the BST end of the buck converter U2, the other end of the resistor R5 is connected to one end of the capacitor C18, the other end of the capacitor C18 is connected to the SW end of the buck converter U2, and the capacitors C16 and C19 are electrolytic capacitors.

[0025] Further, such as Figure 3 As shown, the 13V to 12V voltage conversion circuit includes resistors R1, R4, capacitors C14, C15, C21, C22, an inductor L8 and a bipolar linear regulator U3, one end of the capacitors C14, C15, C21, C22 and the resistor R4 are all grounded, the other end of the resistor R4 and one end of the resistor R1 are connected to the ADJ port of the bipolar linear regulator U3, the other end of the resistor R1 is connected to the VOUT port of the bipolar linear regulator U3, the other end of the capacitors C14 and C15 are connected to the VOUT port of the bipolar linear regulator U3, one end of the inductor L8 is a 13V voltage input end, the other end of the inductor L8 is connected to the VIN port of the bipolar linear regulator U3, the capacitors C21 and C22 are connected to the VIN port of the bipolar linear regulator U3, and the capacitor C21 is an electrolytic capacitor.

[0026] Further, such as Figure 4As shown, the 24V to 6V voltage conversion circuit includes resistors R19, R20, R22, R23, R25, capacitors C31, C32, C33, C34, C35, an inductor L11 and a buck converter U4, one end of the resistors R20, R23, capacitors C31, C32, C34 and C35 are all grounded, the other end of the resistor R20 and one end of the resistor R25 are connected to the EN terminal of the buck converter U4, the other end of the capacitor C31, the other end of C32 and one end of the resistor R19 are connected to one end of the inductor L11, and the other end of the inductor L11 is connected The SW end of the buck converter U4, the other end of the resistor R19 and the other end of the resistor R23 are connected to the FB end of the buck converter U4, one end of the resistor R22 is connected to the BST end of the buck converter U4, the other end of the resistor R22 is connected to one end of the capacitor C33, the other end of the capacitor C33 is connected to the SW end of the buck converter U4, the other ends of the capacitors C34 and C35 are connected to the VIN end of the buck converter U4, the other end of the resistor R25 is connected to the VIN end of the buck converter U4, and the capacitors C31 and C34 are electrolytic capacitors.

[0027] Further, such as Figure 4 As shown, the 6V to 5V voltage conversion circuit includes: resistors R18, R21, an inductor L10, capacitors C29, C30, C36, C37 and a bipolar linear regulator U5, one end of the resistor R21, capacitors C29, C30, C36 and C37 are all grounded, the other ends of the capacitors C29 and C30 are connected to the VOUT terminal of the bipolar linear regulator U5, one end of the resistor R18 is connected to the VOUT terminal of the bipolar linear regulator U5, the other end of the resistor R18 is connected to the ADJ terminal of the bipolar linear regulator U5, the other ends of the capacitors C36 and C37 are connected to the VIN terminal of the bipolar linear regulator U5, one end of the inductor L10 is connected to the VIN terminal of the bipolar linear regulator U5, the other end of the resistor R21 is connected to the ADJ terminal of the bipolar linear regulator U5, and the capacitor C36 is an electrolytic capacitor.

[0028] This utility model achieves precise power supply for different loads and operating conditions through the coordination of multi-level power output and an intelligent monitoring system, improving energy conversion efficiency and circuit operation stability. At the same time, the intelligent monitoring system provides real-time monitoring and safety protection functions, enhancing circuit safety. The output module includes multiple output interfaces with different voltage levels, each with independent control and protection functions, ensuring output stability and safety. Furthermore, the modular design of this application allows for more flexible combination and upgrade of various modules, such as the input module, monitoring system, and output module, facilitating maintenance and expansion.

[0029] The above embodiments are preferred examples for implementing the present invention, and the present invention is not limited to the above embodiments. Any non-essential additions or substitutions made by those skilled in the art based on the technical features of the present invention fall within the scope of protection of the present invention.

Claims

1. A multi-stage power output circuit with intelligent monitoring function, characterized in that: It includes an input module, a control module, an intelligent monitoring module and an output module, wherein the input module includes an AC-DC module, a DC-DC module, a mains input interface and a DC power input interface; the mains input interface is electrically connected to the AC-DC module, the AC-DC module is used to convert the mains into a DC24V voltage output, the DC power input interface is electrically connected to the DC-DC step-down module, the DC-DC step-down module is used to convert the DC voltage into a DC24V voltage output, the control module is electrically connected to the input module, the output module and the intelligent monitoring module, the control module is used to regulate the output module to output different voltage levels; the output module includes a 24V to ±15V voltage conversion circuit, a 24V to 13V voltage conversion circuit, a 13V to 12V voltage conversion circuit, a 24V to 6V voltage conversion circuit and a 6V to 5V voltage conversion circuit, and the 24V to ±15V voltage conversion circuit includes capacitors C1, C2, C3, C4, C9, C10 , C11, C12, C13 inductors L4, L5, L6, L7 and power module U1, one end of the capacitor C10 is grounded, and the other end is connected to the input end of the power module U1, one end of the capacitors C1, C2, C3, C4, C9, C11, C12 and C13 are all grounded, the other ends of the capacitors C1 and C4 are connected to the -15V power output end of the power module U1, the other end of the capacitor C2 is connected to one end of the inductors L4 and L5, and the other end of the inductor L4 is connected The negative phase output terminal of the power module U1, the other end of the inductor L5 is connected to the other end of the capacitor C3, the other ends of the capacitors C9 and C11 are both connected to the +15V power output terminal of the power module U1, the other end of the capacitor C12 is connected to one end of the inductors L6 and L7, the other end of the inductor L6 is connected to the +15V power output terminal of the power module U1, the other end of the inductor L7 is connected to the other end of the capacitor C13, and the capacitors C4, C9 and C10 are electrolytic capacitors.

2. A multi-stage power output circuit with intelligent monitoring function as claimed in claim 1, characterized in that: The 24V to 13V voltage conversion circuit includes capacitors C16, C17, C18, C19, C20, an inductor L9, a resistor R2, a resistor R3, a resistor R5, a resistor R6, a resistor R7 and a buck converter U2, one end of the resistors R3 and R7 are connected to the EN terminal of the buck converter U2, the other end of the resistor R3 is grounded, the other end of the resistor R7 is connected to the VIN terminal of the buck converter U2, and one end of the resistor R6, capacitors C16, C17, C19 and C20 are all grounded. The other ends of the capacitors C16 and C17 are connected to one end of the inductor L9, the other end of the inductor L9 is connected to the SW end of the buck converter U2, the other ends of the capacitors C19 and C20 are connected to the VIN end of the buck converter U2, one end of the resistor R5 is connected to the BST end of the buck converter U2, the other end of the resistor R5 is connected to one end of the capacitor C18, the other end of the capacitor C18 is connected to the SW end of the buck converter U2, and the capacitors C16 and C19 are electrolytic capacitors.

3. A multi-stage power output circuit with intelligent monitoring function as claimed in claim 2, characterized in that: The 13V to 12V voltage conversion circuit includes resistors R1, R4, capacitors C14, C15, C21, C22, an inductor L8 and a bipolar linear regulator U3. One end of the capacitors C14, C15, C21, C22 and the resistor R4 are all grounded, the other end of the resistor R4 and one end of the resistor R1 are connected to the ADJ port of the bipolar linear regulator U3, the other end of the resistor R1 is connected to the VOUT port of the bipolar linear regulator U3, the other end of the capacitors C14 and C15 are connected to the VOUT port of the bipolar linear regulator U3, one end of the inductor L8 is a 13V voltage input terminal, the other end of the inductor L8 is connected to the VIN port of the bipolar linear regulator U3, the capacitors C21 and C22 are connected to the VIN port of the bipolar linear regulator U3, and the capacitor C21 is an electrolytic capacitor.

4. A multi-stage power output circuit with intelligent monitoring function as claimed in claim 3, characterized in that: The 24V to 6V voltage conversion circuit includes resistors R19, R20, R22, R23, R25, capacitors C31, C32, C33, C34, C35, an inductor L11 and a buck converter U4, one end of the resistors R20, R23, capacitors C31, C32, C34 and C35 are all grounded, the other end of the resistor R20 and one end of the resistor R25 are connected to the EN end of the buck converter U4, the other end of the capacitor C31, the other end of C32 and one end of the resistor R19 are connected to one end of the inductor L11, and the other end of the inductor L11 is connected to the The SW end of the buck converter U4, the other end of the resistor R19 and the other end of the resistor R23 are connected to the FB end of the buck converter U4, one end of the resistor R22 is connected to the BST end of the buck converter U4, the other end of the resistor R22 is connected to one end of the capacitor C33, the other end of the capacitor C33 is connected to the SW end of the buck converter U4, the other ends of the capacitors C34 and C35 are connected to the VIN end of the buck converter U4, the other end of the resistor R25 is connected to the VIN end of the buck converter U4, and the capacitors C31 and C34 are electrolytic capacitors.

5. A multi-stage power output circuit with intelligent monitoring function as claimed in claim 4, characterized in that: The 6V to 5V voltage conversion circuit includes: resistors R18, R21, inductor L10, capacitors C29, C30, C36, C37 and a bipolar linear regulator U5, one end of the resistor R21, capacitors C29, C30, C36 and C37 are all grounded, the other ends of the capacitors C29 and C30 are connected to the VOUT terminal of the bipolar linear regulator U5, one end of the resistor R18 is connected to the VOUT terminal of the bipolar linear regulator U5, the other end of the resistor R18 is connected to the ADJ terminal of the bipolar linear regulator U5, the other ends of the capacitors C36 and C37 are connected to the VIN terminal of the bipolar linear regulator U5, one end of the inductor L10 is connected to the VIN terminal of the bipolar linear regulator U5, the other end of the resistor R21 is connected to the ADJ terminal of the bipolar linear regulator U5, and the capacitor C36 is an electrolytic capacitor.

6. A multi-stage power output circuit with intelligent monitoring function as claimed in claim 5, characterized in that: The intelligent monitoring module integrates MCU, storage unit, monitoring sensor, safety protection unit and intelligent power management unit to monitor output current, voltage and power in real time, and Provides overload, short circuit and overheat protection functions.

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