Introduction to the Functions of DC Regulated Power Supplies
DC stabilized power supply plays a very important role in daily production and life. Compared with the internal power supply in various electronic devices, DC stabilized power supply has great advantages. The unstable discharge of the internal power supply in electronic devices can have a certain impact on electronic devices. Below, experts from the Instrumentation World Network will introduce the important role of DC stabilized power supply.
The function of most electronic devices' internal power supplies is to convert AC to DC through unidirectional conductive components, and use various filtering circuits composed of energy storage components to filter out pulsating components in DC. However, these functions still cannot meet the requirements of some electronic devices for DC stabilized power sources, which will have adverse effects on the operation of electronic devices, including the following aspects:
1. The impact of input voltage range: when the input voltage is too high, some components may be damaged due to excessive voltage or power consumption. When the input voltage is too low, some components may experience performance degradation or even malfunction.
2. The impact of voltage instability, for example, the power supply of an oscilloscope must be stable to ensure the accuracy of the deflection sensitivity and scanning time of the light spot; For example, a digital voltmeter requires an extremely accurate and stable power supply internally to ensure the accuracy of voltage/digital conversion.
3. The impact of overvoltage on the output terminal, for example, when the output voltage of a DC stabilized power supply exceeds 30% of the rated voltage of the integrated circuit, it may cause significant damage to the integrated circuit.
4. The impact of a brief power outage, for example, local communication cannot be interrupted instantly, otherwise global communication will be interrupted, causing major accidents; For example, when computers and other devices use AC power supply, an AC uninterruptible power supply should be used.
It can be seen from this that the role of DC stabilized power supply in electronic devices is very important, as it can completely eliminate these effects and play a very important maintenance role in the working process of electronic devices.
