A DC power supply is a device that maintains a steady current in a circuit. My company has been developing and producing, is the main product of my company. It can be made according to the requirements provided by users. However, you may not know what the indicators are for DC power supplies.

 

500kW load bank
 

The indicators of DC power supply are generally divided into two kinds. One is the quality index, used to measure the stability of the power output voltage. It is mainly composed of voltage regulation coefficient, output resistance, ripple voltage and temperature coefficient. The second is the characteristic index, that is, the output voltage and the output current, the input voltage and the input current allow the adjustment degree.

1. Ripple voltage: Ripple voltage is the component of AC voltage superimposed on the output voltage. It can be detected by oscilloscope, and its highest value is generally on the order of millivolts. In addition, it can be measured by an AC millivolt meter, but there is a certain error.

2. Voltage regulation factor: if you want the change of the input voltage of the DC power supply to cause the change of the output voltage, the first thing to ensure is that the load current and the ambient temperature remain unchanged.

3. Output resistance: The output resistance of DC power amplifier is the same. Its value is generally the absolute value of the ratio of the input voltage change value to the output current change value.