The regulated power supply can be divided into linear regulated power supply and switching regulated power supply according to the working state of the regulating tube, as well as the small power supply using the regulated tube.

1000kw load bank
 

The linear regulated power supply refers to the DC regulated power supply with the regulating tube working in a linear state. It is a kind of DC regulated power supply used earlier. In general, linear regulator power supply is composed of regulator tube, reference voltage, sampling circuit, error amplifying circuit and other basic components. The sampling resistor samples the output voltage and compares it with the reference voltage. After the comparison results are amplified by the error amplifying circuit, the conductivity of the regulating tube is controlled to keep the output voltage stable.

Features of linear regulated DC power supply are as follows:

1. The noise generated by work is small;

2. The output voltage is lower than the input voltage.

3. Fast reaction speed;

4. Low work efficiency, LDO can solve the efficiency problem;

5. High calorific value (especially high-power power supply) indirectly increases the thermal noise of the system.