Soft switching structure and power supply
By introducing a soft-switching structure into electronic devices and utilizing the cooperation of the main control module, monitoring module, and switching module, rapid power supply switching and redundant power supply are achieved, solving the problem of slow response speed of traditional mechanical switches and improving the reliability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING WEISHI TIANCHENG TECH CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional mechanical switches are slow to react in electronic devices and cannot automatically cut off power, which affects the reliability and safety of the equipment.
It adopts a soft-switching structure, including a power supply, a power switch, a main control module, a drive module, a monitoring module, and a switching module, forming a dual-path main and backup circuit. The monitoring module and the switching module enable fast switching and redundant power supply, ensuring the reliability and safety of the power supply.
It enables rapid and automatic power cut-off in abnormal situations, improving the power supply reliability and safety of electronic devices and preventing equipment damage caused by malfunctions.
Smart Images
Figure CN224233393U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power supply control technology for electronic devices, and in particular to a soft-switching structure and power supply. Background Technology
[0002] The power supply for electronic devices is usually controlled by mechanical switches. This control method is simple and direct and is widely used in various electronic devices.
[0003] As electronic devices become more complex and their operating environments become more diverse, the requirements for power supply security are increasing. However, traditional mechanical switches have problems such as slow response speed and inability to automatically cut off power supply when dealing with sudden abnormal situations, which to some extent limits the reliability and security of electronic devices. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a soft-switching structure and power supply, aiming to improve the problems of slow response speed and inability to automatically cut off power supply.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a soft-switching structure, including a power supply, an output terminal of which is electrically connected to a power switch, an output terminal of which is electrically connected to a first controllable switch, an output terminal of which is electrically connected to a load, an output terminal of which is electrically connected to a main control module, an output terminal of which is electrically connected to a drive module, an output terminal of which is electrically connected to a monitoring module, an output terminal of which is electrically connected to a switching module, and a redundant component provided at the output terminal of the power supply.
[0006] The above technical solution involves: the power supply connecting the power switch and the main control module; the power switch connecting the load via the first controllable switch; the main control module controlling the first controllable switch via the drive module; the output of the first controllable switch connecting the switching module via the monitoring module; and the switching module controlling the second controllable switch in the redundant components to be connected in parallel with the first controllable switch, forming a circuit path from main and backup dual-path to real-time monitoring and rapid switching.
[0007] As a further description of the above technical solution:
[0008] Preferably, the control signal output terminal of the switching module is electrically connected to the control terminal of the second controllable switch.
[0009] The above technical solution enables the switching module to trigger rapid switching when the second controllable switch malfunctions, thereby improving power supply reliability.
[0010] As a further description of the above technical solution:
[0011] Preferably, the output terminal of the main control module is electrically connected to the input terminal of the second control module.
[0012] Through the above technical solution: the second control module monitors the status of the main control module in real time, and triggers redundancy switching when the main control module is abnormal, ensuring continuous power supply.
[0013] As a further description of the above technical solution:
[0014] Preferably, the driving module is a gate driving chip, the first controllable switch is a power MOSFET, and the output terminal of the driving module is electrically connected to the gate input terminal of the first controllable switch.
[0015] The above technical solution involves connecting the output terminal of the drive module chip to the gate of the power MOSFET, and then rapidly charging and discharging after receiving signals from the main control module.
[0016] As a further description of the above technical solution:
[0017] Preferably, the output terminal of the first controllable switch is electrically connected to the input terminal of the monitoring module, and the output terminal of the monitoring module is electrically connected to the signal input terminal of the main control module.
[0018] Through the above technical solution: the output terminal of the first controllable switch is connected to the main control module via the monitoring module to collect current and voltage signals in real time, and trigger protection to improve safety when abnormalities occur.
[0019] As a further description of the above technical solution:
[0020] Preferably, the output terminal of the drive module is electrically connected to the first signal input terminal of the switching module, and the second signal input terminal of the switching module is connected to a redundant drive signal.
[0021] The above technical solution constitutes a dual-input switching circuit. Under normal conditions, the main path is turned on to drive the first controllable switch, and under abnormal conditions, the switching module switches to the redundant path to drive the second controllable switch.
[0022] As a further description of the above technical solution:
[0023] Preferably, the redundant component includes an independent power supply, the output of which is electrically connected to a second control module, and the output of the second control module is electrically connected to a second controllable switch.
[0024] Through the above technical solution: an independent power supply, a second control module, and a second controllable switch form a backup path independent of the main power supply circuit. When the main control chain is abnormal, the second control module drives the second controllable switch to conduct through the switching module, and connects in parallel with the first controllable switch to supply power to the load.
[0025] As a further description of the above technical solution:
[0026] Preferably, the output terminal of the second controllable switch is electrically connected to the power input terminal of the load and is connected in parallel with the output terminal of the first controllable switch.
[0027] The above technical solution involves connecting the output of the second controllable switch in parallel with the first controllable switch to the load to form a dual-path redundant power supply. When the main path is abnormal, the backup path is activated, thus improving reliability.
[0028] This utility model has the following beneficial effects:
[0029] 1. In this utility model, the main circuit is formed by a power switch, a main control module, a drive module and a first controllable switch. When the main control module is normal, it turns on the switch through the drive module to supply power. When an abnormality is detected, it stops the signal to turn off the switch, thereby realizing rapid automatic disconnection when the power supply circuit is abnormal, and solving the problems of slow response and lack of automatic protection.
[0030] 2. In this utility model, through an independent power supply, a second control unit, and a second controllable switch, when the main control fails, the monitoring module triggers the switching circuit to turn on the redundant components and supply power in parallel with the main path, thereby avoiding fault points and improving system reliability. Attached Figure Description
[0031] Figure 1 This is a schematic block diagram of a soft-switching structure and a power supply proposed in this utility model;
[0032] Figure 2 This is a schematic block diagram of a soft-switching structure and a main control module structure of a power supply proposed in this utility model.
[0033] Figure 3 This is a schematic block diagram of a soft-switching structure and a power supply monitoring module proposed in this utility model.
[0034] Figure 4 This is a schematic block diagram of a soft-switching structure and a redundant component structure of a power supply proposed in this utility model.
[0035] Legend:
[0036] 1. Power supply; 2. Power switch; 3. First controllable switch; 4. Main control module; 5. Drive module; 6. Load; 7. Monitoring module; 8. Switching module; 9. Redundant components; 901. Independent power supply; 902. Second control module; 903. Second controllable switch. Detailed Implementation
[0037] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0038] Reference Figures 1-3 An embodiment of this utility model provides a soft-switching structure, including a power supply 1, an output terminal of the power supply 1 electrically connected to a power switch 2, an output terminal of the power switch 2 electrically connected to a first controllable switch 3, an output terminal of the first controllable switch 3 electrically connected to a load 6, an output terminal of the power supply 1 electrically connected to a main control module 4, an output terminal of the main control module 4 electrically connected to a drive module 5, an output terminal of the first controllable switch 3 electrically connected to a monitoring module 7, an output terminal of the monitoring module 7 electrically connected to a switching module 8, and a redundant component 9 provided at the output terminal of the power supply 1.
[0039] Specifically, the power supply 1, power switch 2, first controllable switch 3, and load 6 form the main power supply circuit. The power supply 1, main control module 4, drive module 5, and first controllable switch 3 constitute a control chain. When the main control module 4 is working normally, it generates a control signal to drive the first controllable switch 3 to conduct and power the load 6. When the main control module 4 receives an abnormal signal from the output terminal of the first controllable switch 3, such as overcurrent or short circuit, fed back by the monitoring module 7, it stops outputting the control signal. After the drive module 5 loses the drive signal, it turns off the first controllable switch 3 to cut off the power supply circuit. The monitoring module 7 and the switching module 8 work together to collect the current and voltage status of the output terminal of the first controllable switch 3 in real time and transmit it to the main control module 4 and the switching module 8, realizing the rapid automatic disconnection of the power supply circuit under abnormal conditions and effectively protecting the load 6 from damage.
[0040] Reference Figure 1 The control signal output terminal of the switching module 8 is electrically connected to the control terminal of the second controllable switch 903;
[0041] Specifically, when the switching module 8 receives an abnormal signal from the monitoring module 7, its internal logic circuit will switch the control signal output terminal from low level to high level. This signal drives the gate of the second controllable switch 903 to conduct. The second controllable switch 903 is connected in parallel with the first controllable switch 3 and then connected to the load 6 to supply power when the main path fails.
[0042] Reference Figure 1 The output terminal of the main control module 4 is electrically connected to the input terminal of the second control module 902;
[0043] Specifically, the main control module 4 is connected to the input terminal of the second control module 902 to form a real-time transmission path for the main control status. The second control module 902 can continuously monitor the output signal or control command of the main control module 4 through the independent power supply 901. When the main control module 4 stops outputting signals due to a fault or the signal is abnormal, the second control module 902 transmits the signal to the switching module 8 to trigger the second controllable switch 903 to be turned on to maintain the power supply to the load 6.
[0044] Reference Figure 1 The driving module 5 is a gate driving chip, the first controllable switch 3 is a power MOSFET, and the output terminal of the driving module 5 is electrically connected to the gate input terminal of the first controllable switch 3.
[0045] Specifically, the drive module 5 is a gate drive chip. Its input terminal is electrically connected to the main control module 4 to receive control signals, and its output terminal is directly connected to the gate input terminal of the first controllable switch 3. When the main control module 4 outputs a logic signal to the drive module 5, its internal integrated drive circuit converts and amplifies the signal, and outputs it to the gate of the first controllable switch 3 of the power MOSFET. The voltage control of the MOSFET is used to realize the switching on and off.
[0046] Reference Figure 1 The output terminal of the first controllable switch 3 is electrically connected to the input terminal of the monitoring module 7, and the output terminal of the monitoring module 7 is electrically connected to the signal input terminal of the main control module 4.
[0047] Specifically, the first controllable switch 3 is connected to the input terminal of the monitoring module 7, and the monitoring module 7 is connected to the signal input terminal of the main control module 4, forming a circuit from signal acquisition to signal processing to control execution. The monitoring module 7 uses current and / or voltage sensors to acquire the current and voltage signals at the output terminal of the first controllable switch 3 in real time, and transmits the digital signals to the interface of the main control module 4. The main control module 4 analyzes the signals through preset thresholds. When an abnormality is detected, the first controllable switch 3 is turned off through the drive module 5 to cut off the power supply circuit.
[0048] Reference Figure 1 The output of the drive module 5 is electrically connected to the first signal input of the switching module 8, and the second signal input of the switching module 8 is connected to the redundant drive signal.
[0049] Specifically, the drive module 5 and the switching module 8 form the switching point for the main and backup drive signals. During normal operation, the main control module 4 outputs the main drive signal to the first input terminal of the switching module 8 through the drive module 5. After the main path is turned on by the switching module 8, the first controllable switch 3 is turned on to supply power to the load 6. When the monitoring module 7 detects an abnormality in the main control chain, the comparison circuit built into the switching module 8 triggers the switching, disconnects the first signal input terminal, and connects the signal of the second signal input terminal. The signal is generated by the independently powered second control module 902, and after passing through the switching module 8, it drives the second controllable switch 903 to turn on, which is connected in parallel with the first controllable switch 3 to maintain the power supply to the load.
[0050] Reference Figure 4 The redundant component 9 includes an independent power supply 901, the output of which is electrically connected to a second control module 902, and the output of the second control module 902 is electrically connected to a second controllable switch 903.
[0051] Specifically, the independent power supply 901 provides independent power to the second control module 902. When the main control module 4 stops outputting signals due to a fault or the first controllable switch 3 malfunctions, the abnormal signal collected in real time by the monitoring module 7 is transmitted to the switching module 8 through a dual path. The threshold comparison circuit built into the switching module 8 triggers the switching, disconnects the main drive signal path and connects the redundant drive signal output by the second control module 902, driving the second controllable switch 903 to conduct. The second controllable switch 903 and the first controllable switch 3 are connected in parallel to supply power to the load 6. This redundancy mechanism avoids circuit failure caused by the failure of the power supply 1 through the independent power supply 901, avoids the risk of the main control module 4 through the real-time monitoring of the main control module 4 by the second control module 902, and realizes the connection of the main and backup paths by the switching module 8, thereby improving the redundancy reliability and risk resistance of the system.
[0052] Reference Figure 1 The output terminal of the second controllable switch 903 is electrically connected to the power input terminal of the load 6 and is connected in parallel with the output terminal of the first controllable switch 3;
[0053] Specifically, when the system is working normally, the first controllable switch 3 is turned on to supply power to the load 6, and the second controllable switch 903 is in the off state. At this time, the output terminal of the second controllable switch 903 is isolated from the load 6 to avoid interfering with the main power supply circuit.
[0054] Working principle: Power supply 1 outputs electrical energy through power switch 2. When the main control module 4 is normal, it outputs a signal to the drive module 5. The drive module 5 drives the first controllable switch 3 to conduct, and the load 6 is powered. The monitoring module 7 detects an abnormality at the output of the first controllable switch 3 and feeds it back to the main control module 4. The main control module 4 stops the signal output, and the drive module 5 turns off the first controllable switch 3, cutting off the power supply and realizing abnormal protection.
[0055] In the redundant component 9, the independent power supply 901 supplies power to the second control module 902. The second control module 902 monitors the status of the main control module 4. When the main control module 4 has no signal or the first controllable switch 3 is abnormal, the monitoring module 7 transmits the abnormal signal to the switching module 8. The switching module 8 switches to the redundant drive signal, which drives the second controllable switch 903 to conduct. The second controllable switch 903 and the first controllable switch 3 are connected in parallel to supply power to the load 6, realizing the main and backup switching and improving reliability.
[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A soft-switching structure, comprising a power supply (1), characterized in that: The output terminal of the power supply (1) is electrically connected to a power switch (2), the output terminal of the power switch (2) is electrically connected to a first controllable switch (3), the output terminal of the first controllable switch (3) is electrically connected to a load (6), the output terminal of the power supply (1) is electrically connected to a main control module (4), the output terminal of the main control module (4) is electrically connected to a drive module (5), the output terminal of the first controllable switch (3) is electrically connected to a monitoring module (7), the output terminal of the monitoring module (7) is electrically connected to a switching module (8), and the output terminal of the power supply (1) is provided with a redundant component (9).
2. The soft-switching structure according to claim 1, characterized in that: The control signal output terminal of the switching module (8) is electrically connected to the control terminal of the second controllable switch (903).
3. The soft-switching structure according to claim 1, characterized in that: The output terminal of the main control module (4) is electrically connected to the input terminal of the second control module (902).
4. The soft-switching structure according to claim 1, characterized in that: The driving module (5) is a gate driving chip, the first controllable switch (3) is a power MOSFET, and the output terminal of the driving module (5) is electrically connected to the gate input terminal of the first controllable switch (3).
5. A soft-switching structure according to claim 1, characterized in that: The output terminal of the first controllable switch (3) is electrically connected to the input terminal of the monitoring module (7), and the output terminal of the monitoring module (7) is electrically connected to the signal input terminal of the main control module (4).
6. The soft-switching structure according to claim 1, characterized in that: The output terminal of the drive module (5) is electrically connected to the first signal input terminal of the switching module (8), and the second signal input terminal of the switching module (8) is connected to the redundant drive signal.
7. A power supply, characterized in that: It includes a redundant component (9), the redundant component (9) includes an independent power supply (901), the output terminal of the independent power supply (901) is electrically connected to a second control module (902), and the output terminal of the second control module (902) is electrically connected to a second controllable switch (903).
8. The power supply according to claim 7, characterized in that: The output terminal of the second controllable switch (903) is electrically connected to the power input terminal of the load (6) and is connected in parallel with the output terminal of the first controllable switch (3).