Patent ID: 9190919
Filing Date: 2015-11-17
Classification: G03G,H02M

Abstract:
1. A high voltage power supply system comprising: a high voltage power supply configured to output an output voltage and an output current to be applied to a load on the basis of a voltage setting signal; a current detector configured to detect a first current value corresponding to the output current, to create a first voltage value by multiplying the first current value by a first resistance value, and to output the first voltage value; a conversion section configured to obtain a second current value by dividing the first voltage value by a second resistance value, and to output the second current value; a voltage detector configured to obtain a third current value by dividing the output voltage by a third resistance value, and to add the second current value with the third current value to obtain a fourth current value, and to convert the fourth current value to a second voltage value by multiplying the fourth current value by a fourth resistance value, and to output the second voltage value; a selector configured to select, as a selected voltage value, one of the first voltage value and the detected voltage second voltage value on the basis of a selection signal, and output the selected voltage value; a resistance variable section configured to change the first resistance value on the basis of a resistance variable signal; a temperature detector configured to detect a temperature in the high voltage power supply system, and output the detected temperature as a detected-temperature value; a humidity detector configured to detect an ambient humidity of the load, and output the detected humidity as a detected-humidity value; and a control section configured to create the voltage setting signal, the selection signal, and the resistance variable signal on the basis of the second voltage value, the detected-temperature value, and the detected-humidity value, and to apply the voltage setting signal to the high voltage power supply, the selection signal to the selector, and the resistance variable signal to the resistance variable section.