CONTROLLER AND AD CONVERSION CONTROL METHOD

• Main Authors: WATANABE MASATOSHI, UMEYAMA SHIGETO, AKAZA MASANORI
• Format: Patent
• Language: English; Japanese
• Published: 25.01.2018
• Subjects: BASIC ELECTRONIC CIRCUITRY; CODE CONVERSION IN GENERAL; CODING; DECODING; ELECTRICITY

PROBLEM TO BE SOLVED: To provide a controller and an AD conversion control method capable of appropriately setting the timing of AD conversion for an AC component superposed on a current or a voltage supplied to a control object.SOLUTION: A controller includes a drive unit for supplying a current or voltage, on which an AC component was superposed, to a control object, an AD conversion unit, and an AD conversion control unit. In the AC period of the AC component, the AD conversion control unit controls the AD conversion unit to execute first time AD conversion in synchronism with the start timing of AC period, and to execute second and subsequent AD conversions at a predetermined time interval, while being triggered by an internal timer of the AD conversion unit.SELECTED DRAWING: Figure 1A 【課題】制御対象に供給される電流または電圧に重畳される交流成分に対するＡＤ変換のタイミングを適切に設定することができる制御装置およびＡＤ変換制御方法を提供すること。【解決手段】実施形態に係る制御装置は、交流成分が重畳された電流または電圧を制御対象へ供給する駆動部と、ＡＤ変換部と、ＡＤ変換制御部とを備える。ＡＤ変換制御部は、交流成分の交流周期内において、交流周期の開始タイミングに同期して１回目のＡＤ変換をＡＤ変換部に実行させた後、ＡＤ変換部の内部タイマによるトリガで２回目以降のＡＤ変換を所定の時間間隔でＡＤ変換部に実行させる。【選択図】図１Ａ