Abstract: An electronic device includes an inlet including a ground terminal having a first surface and a second surface opposite from the first surface, a first casing metal plate configured to hold the inlet and contacting the first surface of the ground terminal, and a second casing metal plate contacting the second surface of the ground terminal.

Abstract: An electronic device includes an inlet including a ground terminal having a first surface and a second surface opposite from the first surface, a first casing metal plate configured to hold the inlet and contacting the first surface of the ground terminal, and a second casing metal plate contacting the second surface of the ground terminal.

Abstract: A high-voltage power supply that outputs high voltages having a predetermined polarity and a reverse polarity performs control in a manner that, during a transition period in which switching of a target voltage of the high voltage having the reverse polarity from the predetermined polarity is performed, a setting value in accordance with a voltage higher than a target voltage is set as the voltage having the reverse polarity, and then a setting value in accordance with the target voltage is set as the voltage having the reverse polarity.

Abstract: A high-voltage power supply that outputs high voltages having a predetermined polarity and a reverse polarity performs control in a manner that, during a transition period in which switching of a target voltage of the high voltage having the reverse polarity from the predetermined polarity is performed, a setting value in accordance with a voltage higher than a target voltage is set as the voltage having the reverse polarity, and then a setting value in accordance with the target voltage is set as the voltage having the reverse polarity.

Abstract: The power supply apparatus includes a transformer that generates an AC voltage; a driving unit that drives a primary side of the transformer to set an output on a secondary side of the transformer to a predetermined value; a rectifying and smoothing unit connected to one end on the secondary side and adapted to rectify and smooth the AC voltage and output a DC voltage of a positive potential; a voltage generation unit connected to another end on the secondary side and adapted to generate a DC voltage to be superposed with the AC voltage; a control unit connected to the rectifying and smoothing unit and the voltage generation unit and adapted to control a current value according to the DC voltage output by the rectifying and smoothing unit and control the DC voltage generated by the voltage generation unit.

Abstract: An alternating current generation circuit has a transformer and generates an alternating current voltage in accordance with a pulse signal input to the transformer. A clamp circuit has a constant-voltage element and a current limit element connected in series between the transformer, an output end of the alternating current voltage, and a ground. A direct current generation circuit generates a direct current voltage in accordance with a duty cycle of the input pulse signal. The direct current generation circuit converts, into a direct current voltage, a current that flows from the clamp circuit via the ground, and superimposes the direct current voltage on the alternating current voltage, and a voltage obtained by superimposing the direct current voltage on the alternating current voltage is output from the output end.

Abstract: An alternating current generation circuit has a transformer and generates an alternating current voltage in accordance with a pulse signal input to the transformer. A clamp circuit has a constant-voltage element and a current limit element connected in series between the transformer, an output end of the alternating current voltage, and a ground. A direct current generation circuit generates a direct current voltage in accordance with a duty cycle of the input pulse signal. The direct current generation circuit converts, into a direct current voltage, a current that flows from the clamp circuit via the ground, and superimposes the direct current voltage on the alternating current voltage, and a voltage obtained by superimposing the direct current voltage on the alternating current voltage is output from the output end.

Abstract: The power supply apparatus includes a transformer that generates an AC voltage; a driving unit that drives a primary side of the transformer to set an output on a secondary side of the transformer to a predetermined value; a rectifying and smoothing unit connected to one end on the secondary side and adapted to rectify and smooth the AC voltage and output a DC voltage of a positive potential; a voltage generation unit connected to another end on the secondary side and adapted to generate a DC voltage to be superposed with the AC voltage; a control unit connected to the rectifying and smoothing unit and the voltage generation unit and adapted to control a current value according to the DC voltage output by the rectifying and smoothing unit and control the DC voltage generated by the voltage generation unit.