Patent ID: 9417592
Filing Date: 2016-08-16
CPC Classification: G03G

Claim Text:
1. An image forming apparatus comprising: a central processing device configured to perform information processing associated with image formation; a first switching regulator configured to receive an input of a first voltage and configured to output a second voltage which is lower than the first voltage, the first switching regulator comprising a first switching unit configured to control the output of the first switching regulator; a second switching regulator configured to receive an input of the second voltage and configured to output a third voltage which is lower than the second voltage; a step-up circuit that steps up the first voltage so as to generate a fourth voltage which is higher than the first voltage; and a motor driving module configured to drive a motor used for the image formation, wherein the third voltage is input to the central processing device, a first switching frequency which is a switching frequency of the first switching regulator is lower than a second switching frequency which is a switching frequency of the second switching regulator; the first switching unit of the first switching regulator comprises a first NMOS transistor in which the first voltage is input to a source and a voltage based on the fourth voltage is input to a gate, and the motor driving module comprises a second NMOS transistor in which the voltage based on the fourth voltage is input to a gate.