Power Supply Testing

For basic testing, the Dynaload is used to simulate many current levels in both constant current mode and constant resistance mode. The load regulation at various current levels is obtained by monitoring the change in output voltage. The Dynaload is also used to determine the current limit characteristics down to the point of short circuit current. The response characteristics of the power supply may be analyzed with the use of an oscilloscope when operating in pulse mode. Charac teristics such as loop response, overshoot, undershoot, and load regulation may be determined from a single high-spe ed current pulse. When testing a battery charger, the constant voltage mode will verify the operation of the charger into a constant voltage load, thus simulating a battery.