DC stabilized power supplies are the electronic devices supplying stable DC power supplies for loads, and programmable DC power supplies are commonly used. The power source of DC power supplies are mostly AC power supplies. When the voltage or load resistor of AC supply voltage changes, the direct output voltage of the voltage stabilizer can still keep stable. With the development of electronic equipment in the direction of high-precision, high stability and high reliability, higher requirements are put forward for the power supplies of electronic equipment.
Due to the features of electronic technology, electronic equipment's requirement for power circuits is to supply lasting and stable power which must meet the load demand. And usually, stable DC electric energy is required. It is DC stabilized power supply that can supply this kind stable DC electric energy. Therefore, DC stabilized power supply plays an very important role in power supplies technology. We can not live without electricity and it is convenient for our life to use DC stabilized power supply!