Power supply switcher

Abstract

The utility model belongs to but not limited to the technical field of power supply switching, and particularly relates to a power supply switcher which is respectively connected with main equipment and standby equipment, the power supply switcher is connected with a power supply and is electrified, and when the main equipment fails, a user manually controls power supply switching through an external button. And the working voltage is less than 15V. The design of the power switcher aims to realize manual switching between multiple power supplies (main equipment and standby equipment). The switcher has the advantages of being small in size, low in power consumption, easy to operate and the like.

Description

Technical Field

[0001] This utility model belongs to, but is not limited to, the field of power switching technology, and particularly relates to a power switcher. Background Technology

[0002] Power switching is commonly used in industrial applications. Its main purpose is to switch power from one power source to multiple devices when one source is supplying power, thus enabling the switching of output power. The power switching device is a key component in this field, and its design directly affects the stability and reliability of the power supply, ultimately impacting the overall operation of the equipment.

[0003] Based on the above analysis, the urgent technical problems that need to be solved in the existing technology are: when switching AC power, the switching steps are relatively cumbersome, and it is difficult to observe the voltage. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a power switch.

[0005] This utility model is implemented as follows: a power switch includes a power switch that is connected to a main device and a backup device respectively, the power switch is connected to a power source to be powered on, and when the main device fails, the user can manually control the power switching through an external button.

[0006] Furthermore, the operating voltage is less than 15V.

[0007] Based on the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solution to be protected by this utility model are as follows:

[0008] First, the power switch is designed to enable manual switching between multiple power sources (primary and backup equipment). This switch features small size, low power consumption, and simple operation.

[0009] Second, the expected benefits and commercial value of the technical solution of this utility model after its transformation are as follows:

[0010] Reduce power outage losses: Power switches can quickly switch to backup power when the main power supply fails, reducing equipment downtime caused by power outages, thereby reducing production losses or business interruption costs caused by downtime.

[0011] Reduced maintenance costs: High-quality power switches are well-designed and operate stably, reducing the cost of repair and replacement due to equipment failure.

[0012] Efficiency Improvement: Power switches enable seamless switching, ensuring uninterrupted operation of equipment during the transition between main and backup power, thus improving overall system efficiency. Some advanced power switches feature automated management capabilities, automatically monitoring power status and executing switching operations, reducing manual intervention and enhancing management efficiency.

[0013] Enhancing Product Reliability: The application of power switches can significantly improve the power supply reliability of equipment, meeting the needs of industries with high requirements for power supply stability (such as data centers, medical equipment, industrial production lines, etc.), thereby enhancing the market competitiveness of enterprises.

[0014] Differentiation Advantage: By providing products with efficient and stable power switching capabilities, companies can create a differentiated advantage in the market and attract more customers with strict requirements for power quality.

[0015] Expand market share:

[0016] Expanding application areas: With continuous technological advancements and cost reductions, the application areas of power switches will continue to expand, from traditional data centers and medical equipment to a wider range of industrial, commercial, and civilian fields, bringing more market opportunities to enterprises.

[0017] Enhancing Brand Influence: High-quality, reliable power switch products can improve a company's brand image and awareness, increase customer trust and loyalty, and thus further expand market share.

[0018] Promoting Technological Innovation and Industrial Upgrading: Continuous innovation in power switch technology will drive technological progress across the entire power management field, promoting the development and improvement of related industrial chains. With the widespread adoption and application of power switch technology, it will drive industrial upgrading and transformation in related sectors, improving overall production efficiency and product quality.

[0019] The transformation of power switch technology can not only bring significant cost savings and efficiency improvements to enterprises, but also enhance their market competitiveness, expand their market share, and promote technological innovation and industrial upgrading, thus possessing significant commercial value. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the working principle of the power switch provided in this embodiment of the utility model;

[0021] Figure 2 This is a three-dimensional design drawing of the front of the control panel provided in this embodiment of the utility model;

[0022] Figure 3 This is a three-dimensional design drawing of the reverse side of the control board provided in this embodiment of the utility model;

[0023] Figure 4 This is a three-dimensional design drawing of the front of the switching plate provided in this embodiment of the utility model;

[0024] Figure 5 This is a three-dimensional design drawing of the reverse side of the control board provided in this embodiment of the utility model. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0026] like Figure 1 As shown, a power switch includes: the power switch is connected to a main device and a backup device respectively; the power switch is connected to a power source for power supply; when the main device fails, the user manually controls the power switching via an external button. Figures 2-5 As shown, the operating voltage is less than 15V, the maximum power is 60W, and the current is less than 4A.

[0027] The power switch mainly uses the APM4953 chip, and the basic working principle of this chip is as follows:

[0028] MOSFET structure: The APM4953 contains two independent N-channel MOSFET transistors, each with a gate (G), source (S) and drain (D).

[0029] Conduction mechanism: When the gate voltage (VGS) is greater than the threshold voltage (VTH) of the MOSFET, a channel under the gate begins to form, allowing current to flow from the source to the drain.

[0030] Current control: As the gate voltage increases, the current in the channel also increases. Simultaneously, the increase in source voltage weakens the channel's ability to impede current flow, leading to a rise in output voltage. Conversely, when the gate voltage decreases, the current in the channel gradually decreases until it is eventually disconnected, and the output voltage decreases accordingly.

[0031] Therefore, this new type of electronic device operates on the principle of enabling fast, stable, and low-loss switching between different power sources. Through intelligent power management, it switches power sources based on the device's operating status and needs to achieve efficient energy utilization. Switching between different power sources is achieved by controlling the power switch. Optimized control algorithms and circuit design enable fast, stable, and low-loss power switching.

[0032] This power switch is widely used in various applications requiring power switching, including but not limited to:

[0033] Electronic devices and systems, such as televisions, computers, audio equipment, projectors, etc.

[0034] Internet of Things (IoT) devices, such as smart home systems and smart security systems.

[0035] Industrial automation control systems, such as PLC control systems and DCS control systems.

[0036] This utility model provides a power switch that utilizes the characteristics of the APM4953 chip, controlling the MOSFET structure to achieve power switching between the primary and backup devices. When the power switch is connected to both the primary and backup devices, it automatically monitors the operating status of the primary device. If a fault or power loss is detected in the primary device, the user can manually switch the power supply via an external button, ensuring the backup device can take over promptly. The system operates at a voltage less than 30V, and depending on the application scenario, the operating voltage is limited to less than 15V, the maximum power is 60W, and the current is limited to within 4A, ensuring the safety and stability of the entire switching process.

[0037] The APM4953 chip, as a core component, contains two independent N-channel MOSFET transistors, each with a gate (G), source (S), and drain (D). The key to power switching lies in the control of the gate voltage (VGS). When the gate voltage exceeds the MOSFET's threshold voltage (VTH), a channel is formed, allowing current to flow from the source to the drain, thus enabling current conduction. This conduction mechanism is the foundation for the switch to achieve power supply switching.

[0038] During operation, as the gate voltage rises, the current in the channel increases accordingly. The increased source voltage weakens the channel's ability to impede current flow, thus raising the output voltage. At this time, the current transfer of the main device is normal, ensuring its operational status. If the main device malfunctions or experiences a power outage, the gate voltage decreases, and the current in the channel gradually decreases until the MOSFET turns off. With the channel disconnected, the power switch stops supplying power to the main device.

[0039] When the user presses the external button, the power switch controls the MOSFET transistor to power on the backup device. At this time, the gate voltage of the backup device increases, the channel reforms, and current begins to flow from the source to the drain, initiating the backup device's operation. This process is efficiently implemented through the MOSFET control circuitry of the APM4953.

[0040] Furthermore, the dual N-channel MOSFET structure of the APM4953 chip ensures fast response and low-power operation of the switch. Since the power switch is designed to operate at lower voltages and power levels, the fast switching characteristics of MOSFETs ensure precise current control, effectively preventing damage to the device from sudden current surges or voltage fluctuations during power switching.

[0041] In summary, this power switch utilizes the MOSFET structure of the APM4953 to achieve power switching between main and backup devices by controlling the gate voltage. It has advantages such as precise current and voltage control, fast response, and low power consumption, and can ensure reliable operation of the equipment under low voltage conditions.

[0042] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any modifications, equivalent substitutions and improvements made by those skilled in the art within the technical scope disclosed in this utility model, and within the spirit and principles of this utility model, should be included within the protection scope of this utility model.

Claims

1. A power switch, characterized in that, Includes a power switch connected to a main device and a backup device, the power switch also being connected to a power source; The power switch operates at a voltage of less than 15V, has a maximum power of 60W, and a current of less than 4A, and is used to provide low-power power switching functionality. The power switcher uses an APM4953 chip, which contains two N-channel MOSFET transistors to control the power switching between the main device and the backup device.

2. The power switch as described in claim 1, characterized in that, The MOSFET of the APM4953 chip controls the conduction and disconnection of the channel by changing the gate voltage. When the gate voltage is greater than the threshold voltage, the MOSFET channel is formed, allowing current to flow from the source to the drain, thus completing the power switching.

3. The power switch as described in claim 2, characterized in that, When the main device fails or the power is interrupted, the gate voltage drops, the MOSFET disconnects the main device power, and at the same time the gate voltage of the standby device is increased by an external button, so that the standby device is powered on.

4. The power switch as described in claim 1, characterized in that, The APM4953 chip precisely regulates current flow by controlling the gate voltage.

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