POWER SUPPLY DEVICE AND METHOD OF CONTROLLING THE SAME

• Main Authors: OIKAWA ATSUSHI, NAGASHIMA EIJI, NAKAJIMA YOSHIYASU, YONEZAWA YU
• Format: Patent
• Language: English; Japanese
• Published: 02.08.2018
• 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

PROBLEM TO BE SOLVED: To calculate an output current value flowing into a load with high accuracy.SOLUTION: A current detection circuit 14 that a power supply device 10 has, detects a current value flowing into an inductance element 13a from a detection tap 13b of the inductance element 13a that connects between an output terminal OUT and an output of a switching element 11. A control circuit 16 that the power supply device 10 has, controls a control terminal of the switching element 11 and a control terminal of a switching element 12, and calculates an output current value flowing into a load 30 on the basis of the current value detected by the current detection circuit 14.SELECTED DRAWING: Figure 1 【課題】負荷に流れる出力電流値を精度よく算出する。【解決手段】電源装置１０が有する電流検出回路１４が、出力端子ＯＵＴとスイッチング素子１１の出力との間を接続するインダクタンス素子１３ａの検出タップ１３ｂからインダクタンス素子１３ａに流れる電流値を検出し、電源装置１０が有する制御回路１６が、スイッチング素子１１の制御端子とスイッチング素子１２の制御端子とを制御するとともに、電流検出回路１４が検出する電流値に基づいて、負荷３０に流れる出力電流値を算出する。【選択図】図１