POWER SUPPLY CONTROL DEVICE AND IMAGE FORMING DEVICE

• Main Authors: NONOYAMA MASAHIRO, YAMAMOTO YUTAKA, MASUDA JUNICHI, TAKATSU HIROAKI, KIMURA HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 03.04.2023
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

To provide a power supply control device and an image forming device capable of reducing power consumption more in a power saving mode than a conventional image forming device.SOLUTION: A supply control device 170 comprises: a conversion unit; and a smoothing unit. The conversion unit converts an input voltage into a DC voltage and outputs it. The smoothing unit is connected to the output side of the conversion unit, and smooths and outputs the output voltage of the conversion unit. The smoothing unit has a first capacitor, and a DC circuit connected in parallel to the first capacitor. The DC circuit has a second capacitor, and a first switch connected in series to the second capacitor. The smoothing unit outputs the DC voltage varied in accordance with a time constant based on the capacities of the first and second capacitors when the first switch is on.SELECTED DRAWING: Figure 2 【課題】従来の画像形成装置と比較して、省電力モード時の消費電力をさらに低減できる電源制御装置、および画像形成装置を提供する。【解決手段】電源制御装置１７０は、変換部、および平滑部を有する。変換部は、入力電圧を直流電圧に変換して出力する。平滑部は、変換部の出力側に接続され、変換部の出力電圧を平滑化して出力する。平滑部は、第１のコンデンサーと、当該第１のコンデンサーと並列に接続された直列回路とを有し、直列回路は、第２のコンデンサーと、当該第２のコンデンサーと直列に接続された第１のスイッチとを有する。平滑部は、第１のスイッチがオンのとき、第１のコンデンサーおよび第２のコンデンサーの容量に基づく時定数に従って変化する前記直流電圧を出力する。【選択図】図２