POWER SUPPLY DEVICE AND IMAGE FORMING APPARATUS

• Main Author: HASEGAWA TAKAHIKO
• Format: Patent
• Language: English; Japanese
• Published: 13.01.2022
• 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 start and stop a power supply device safely without increasing power consumption.SOLUTION: A power supply device according to one aspect of the present invention converts an AC voltage which is inputted from a commercial power source to a first DC voltage. The power supply device includes power factor improving means for improving a power factor of the AC voltage, conversion means for converting a second DC voltage which is outputted from the power factor improving means, to the first DC voltage, voltage detection means for detecting the AC voltage, control means for controlling start or stop of the power supply device on the basis of a detection value obtained by the voltage detection means, and a voltage correction capacitor that corrects the detection value obtained by the voltage detection means.SELECTED DRAWING: Figure 1 【課題】消費電力を増大させることなく、電源装置を安全に起動及び停止させること。【解決手段】本発明の一態様に係る電源装置は、商用電源から入力される交流電圧を第１直流電圧に変換する電源装置であって、前記交流電圧の力率を改善する力率改善手段と、前記力率改善手段が出力する第２直流電圧を前記第１直流電圧に変換する変換手段と、前記交流電圧を検出する電圧検出手段と、前記電圧検出手段の検出値に基づき、前記電源装置の起動又は停止を制御する制御手段と、前記電圧検出手段による検出値を補正する電圧補正コンデンサと、を有する。【選択図】図１