DC UPS: Plays a Crucial Role Stable Operation of Communication Base Stations

How DC UPS provide stable operation of Communication Base Stations

When the Mains Power is Normal

• Voltage Stabilization Function: The DC UPS is equipped with advanced voltage regulation circuits inside. When the voltage of the mains power input fluctuates within a certain range, it can monitor and adjust automatically in real time. For example, if the mains voltage shows an upward trend, the DC UPS will use the step-down circuit to reduce the excessive voltage to a stable voltage value acceptable to the communication equipment (such as around -48V). Conversely, when the mains voltage decreases, it can use the step-up circuit to ensure that the output voltage remains at the standard level, thus ensuring that the equipment in the communication base station always works in a stable voltage environment and avoiding equipment performance instability or damage caused by voltage fluctuations.
• Filtering Function: The mains power inevitably contains various noise and harmonic components, and these interference factors will affect the signal processing and normal operation of the communication equipment. The filtering circuit of the DC UPS can effectively filter out these adverse components and provide pure direct current to the communication equipment. It uses a filtering network composed of filtering elements such as capacitors and inductors to block and absorb interference signals of different frequencies, making the waveform of the output direct current smoother and significantly improving the power supply quality. This helps the communication equipment to perform signal sending, receiving, and processing operations more efficiently and ensures the quality of communication services.

When the Mains Power is Cut Off

• Activation Mechanism of the Battery Bank: The DC UPS constantly monitors the power supply status of the mains power. Once it detects a power outage of the mains power, its control system will immediately trigger the discharge circuit of the battery bank to achieve seamless switching. This switching process is usually completed in a very short time, generally reaching the millisecond level, ensuring that the equipment in the communication base station will not stop working due to a brief power outage. The battery bank will output direct current stably according to the preset discharge strategy to meet the load requirements of the equipment and maintain the normal operation of the communication base station.
• Power Supply Duration and Guarantee Effect: The duration that the DC UPS can rely on the battery bank to continuously supply power to the communication base station depends on factors such as the capacity of the battery and the load power of the communication base station equipment. For example, for a small communication base station equipped with a battery bank of appropriate capacity, it may be able to maintain power supply for 2 - 3 hours under full load operation. For a base station with relatively small load, the power supply duration may be extended to 4 - 6 hours or even longer. During this emergency power supply period, the communication base station can continue to maintain basic communication service functions, such as ensuring emergency calls and sending important text messages, avoiding significant impacts on social emergency rescue and key information transmission caused by communication interruptions due to power outages.

Ability to Cope with Grid Fluctuations and Interference