MOTOR CONTROLLER

• Main Authors: MIYAGAWA SATOSHI, TAKEMURA SUNAO
• Format: Patent
• Language: English; Japanese
• Published: 22.08.2019
• 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 OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROL OR REGULATION THEREOF; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

To easily suppress influence of a dead time on voltage control in such a manner that examination of a specific operation situation of each motor controller by a user, or the like is not required.SOLUTION: A control circuit (10) allows a step-down converter circuit (40) to perform step-down of direct current voltage to an inverter circuit (60) in such a manner that the duty of a PWM signal becomes larger than a dead time (Td).SELECTED DRAWING: Figure 1 【課題】ユーザによる個々のモータ制御装置の具体的な運用状況等の検討を必要とせずに、デッドタイムの電圧制御への影響を容易に抑制する。【解決手段】制御回路（１０）は、ＰＷＭ信号のデューティがデッドタイム（Ｔｄ）よりも大きくなるよう、降圧コンバータ回路（４０）に、インバータ回路（６０）への直流電圧を降圧させる。【選択図】図１