Network equipment power supply device
By combining the SM5308 charging chip and conversion circuit with a lithium battery, the high cost of UPS power supply equipment is solved, achieving low-cost and reliable power switching for network equipment and ensuring normal operation of equipment in the event of a power outage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-03
AI Technical Summary
The high cost of existing UPS power supply equipment has led to an increased demand for UPS equipment and transmission lines in large network systems, resulting in high overall costs.
By using the SM5308 charging chip, combined with a conversion circuit and a lithium battery, the switching between external power supply and lithium battery power supply is realized, ensuring that the lithium battery continues to supply power when the external power supply is interrupted, thereby reducing costs.
By using the low-cost SM5308 charging chip and conversion circuit, continuous power supply to network devices is achieved when the external power supply is interrupted, reducing equipment costs and improving power supply reliability.
Smart Images
Figure CN224083207U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power supply equipment technology, and relates to a power supply device for network equipment. Background Technology
[0002] Important network systems such as industrial control networks, VoIP, and office networks are typically equipped with UPS (Uninterruptible Power Supply). A UPS can ensure that network devices are powered for a period of time after an external power outage, using its own energy storage battery to restore network functionality quickly. When the network system is large, multiple UPSs are usually required, each responsible for network devices in a different area. All network devices must be connected to a UPS; devices not connected to a UPS will become unusable after an external power outage. Currently, UPS equipment is relatively expensive due to the need for a large number of UPS units and extensive UPS transmission lines, resulting in an overall high cost. Utility Model Content
[0003] The purpose of this utility model is to address the problem of high cost of existing UPS power supply equipment in the background art by providing a power supply device for network equipment.
[0004] Therefore, the present invention adopts the following technical solution:
[0005] A network device power supply device includes a charging chip and a network device. The charging chip has an input pin VIN, an output pin VOUT, a conversion pin SW, and a lithium battery pin BAT. The input pin VIN is connected to an external power supply, the output pin VOUT is connected to the network device, the conversion pin SW is connected to a lithium battery, and the lithium battery is connected to the lithium battery pin BAT.
[0006] Furthermore, the charging chip is provided with LED1 pin and LED2 pin, the LED1 pin is connected to a first LED light, and the LED2 pin is connected to a second LED light.
[0007] Furthermore, the conversion pin SW is connected to the lithium battery via a conversion circuit.
[0008] The advantages of this utility model are as follows: it uses a low-cost SM5308 charging chip, which powers the network device from an external power source and simultaneously charges the lithium battery. When the external power source is interrupted, the lithium battery can continue to power the network device, ensuring its continued operation. It also features a conversion circuit to increase the voltage input to the charging chip from the lithium battery, ensuring compatibility with the network device. Furthermore, it is low-cost and easy to use. Attached Figure Description
[0009] Figure 1This is a schematic diagram of the structure of this utility model;
[0010] In the diagram, 1-charging chip, 2-network device, 3-external power supply, 4-lithium battery, 5-conversion circuit, 6-first LED light, 7-second LED light. Detailed Implementation
[0011] The present invention will now be described in detail with reference to the accompanying drawings:
[0012] like Figure 1 As shown, a network device power supply device includes a charging chip 1 and a network device 2. The charging chip 1 supplies power to the network device 2. Specifically, the charging chip 1 uses the existing conventional SM5308 chip. The SM5308 is a multi-functional power management chip that integrates a boost converter, lithium battery charging management, and battery level indication. The charging chip 1 has an input pin VIN for connecting to an external power source, an output pin VOUT for external power supply, a conversion pin SW for voltage boosting / pull-down, and a lithium battery pin BAT for connecting to a lithium battery. The input pin VIN... N is connected to an external power supply 3, which is connected to resistors R1 and C1 in parallel. Resistor C1 is grounded. Resistor R1 is connected in series with resistor C2, which is also grounded. The output pin VOUT is connected to network device 2, supplying power to network device 2. Capacitors C3, C4, and C5 are also connected in parallel with network device 2, and all three are grounded. The conversion pin SW is connected to lithium battery 4, which is connected to the lithium battery pin BAT. By using the conversion pin SW and the lithium battery pin BAT, the charging chip 1 can charge the lithium battery 4, and the lithium battery 4 can also supply power to the output pin VOUT. Therefore, when the external power supply 3 is disconnected, the lithium battery 4 can supply power to the network device 2. Specifically, the conversion pin SW is connected to the lithium battery 4 through a conversion circuit 5. The conversion circuit 5 includes an inductor L1, capacitors C6, C7, and C8, and resistors R2 and R3. Pin SW is connected to the lithium battery 4 through inductor L1, and inductor L1 is connected in parallel with resistor R3. Resistor R3 is connected in parallel with... The lithium battery pin BAT is connected. Capacitors C7 and C8 are connected in parallel with resistor R3 and grounded. Pin SW is also connected in series with resistor R2 and capacitor C6. Capacitor C6 is grounded. The charging chip has LED1 and LED2 pins. LED1 pin is connected to the first LED 6, and LED2 pin is connected to the second LED 7. The first LED 6 and the second LED 7 are used to indicate the charging or discharging status of the lithium battery 4. In addition, the charging chip 1 has an LED3 pin, and the first LED 6 and the second LED 7 are respectively connected to the LED3 pin.
[0013] The method of using this utility model is as follows:
[0014] When external power supply 3 is connected, it supplies power to charging chip 1 through input pin VIN and then supplies power to network device 2 through output pin VOUT, enabling network device 2 to operate. While supplying power to network device 2, it can also charge lithium battery 4 through conversion pin SW and lithium battery pin BAT. At this time, the first LED 6 lights up. When external power supply 3 is disconnected, lithium battery 4 supplies power to charging chip 1 through conversion pin SW and lithium battery pin BAT. Conversion pin SW can increase the voltage input to charging chip 1 so that the voltage meets the requirements of network device 2. Then, it supplies power to network device 2 through output pin VOUT. At this time, the second LED 7 lights up, ensuring that power supply to network device 2 is maintained when external power supply 3 is disconnected, preventing failures caused by power outages.
Claims
1. A network device power supply apparatus, characterized by comprising: The application relates to a charging chip and a network device, wherein the charging chip is provided with an input pin VIN, an output pin VOUT, a conversion pin SW and a lithium battery pin BAT; an external power supply is connected to the input pin VIN; the output pin VOUT is connected to the network device; the lithium battery is connected to the conversion pin SW; and the lithium battery is connected to the lithium battery pin BAT.
2. The network device powering apparatus according to claim 1, wherein, The charging chip is an SM5308 charging chip.
3. The network device powering apparatus of claim 1, wherein, The charging chip is provided with an LED1 pin and an LED2 pin; a first LED lamp is connected to the LED1 pin; and a second LED lamp is connected to the LED2 pin.
4. The network device powering apparatus of claim 1, wherein, The conversion pin SW is connected to the lithium battery through a conversion circuit.