The Requirements Of Complex Communication Equipment On Automatic Voltage Regulator

1) DC power supply and (or) AC power supply

Modern communication equipment is generally electronic circuits and computer circuits, which require a variety of DC voltage power supply. As a communication device, it can also be equipped with a conversion power supply (rectification, conversion, etc.) inside, so the outside of the communication equipment can be divided into DC power supply or AC power supply network. Usually, large communication equipment and large computers and other special equipment use DC power supply, considering high reliability; small general equipment uses AC power supply, taking its good mobility.

2) Accurate and stable voltage

For general digital circuits with low requirements, it is 5V±0.25V. For 12-bit A/D converters (if their resolution is to be guaranteed), their reference voltage must have an accuracy of 0.02%. For batteries that ensure uninterrupted power supply, the long-term floating charge voltage should usually be (2.23V±0.02V)/battery, otherwise the life of the expensive battery will be shortened.

3) Low noise voltage

Automatic Voltage Regulator has low interference to communication, for example, low noise during voice communication, low stripe interference during image communication, low bit error rate during digital communication, etc.

4) High efficiency

Energy saving, reducing the heat generation of power supply equipment, improving reliability, and reducing the size and weight of equipment all require high efficiency. The development of many circuit technologies (soft switching, energy recovery absorption, etc.) is for high efficiency.

5) Less pollution

Does not affect the power supply quality of the power grid (greening), high input power factor, small input harmonic current, and soft start to reduce impact current.

6) Automatic protection

Once abnormal phenomena occur, such as excessive input and output voltage or current, excessive temperature rise, etc., protective measures such as power cut-off should be taken immediately to avoid the expansion of the fault and ensure the normal power supply of the system.

7) Lightning protection and overvoltage protection

Lightning strikes and power grid operation overvoltage are environmental supply factors, but they are not uncommon and are important factors that cause accidental damage to equipment.

8) Others

It can work normally within the specified ambient temperature and humidity range, has low failure rate and long service life, etc.