Uncomplicated Dead-time Generation Designed for H-Bridge Drivers by Logic Gates Driving Linear Actuators

  • سال انتشار: 1403
  • محل انتشار: مجله نوآوری های مهندسی برق و کامپیوتر، دوره: 12، شماره: 1
  • کد COI اختصاصی: JR_JECEI-12-1_005
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 150
دانلود فایل این مقاله

نویسندگان

M. Karimi

Department of Electrical Engineering, Faculty of Electrical and Computer Engineering, Kashan University, Kashan, Iran.

D. Dideban

Department of Electrical Engineering, Faculty of Electrical and Computer Engineering, Kashan University, Kashan, Iran.

چکیده

kground and Objectives: The H-bridge (HB) driver design with high efficiency is one of the most challenging issues in power systems that drive AC/DC loads. HB driver circuit based upon complementary MOSFET type used as a driving system of DC motor, power converters, and battery charger for electrical vehicles. In Driving DC motors, dead-time (DT) generation has been considered a major factor such as preventive power line short-circuit (shoot-through) over high and low-side MOSFETs. In this paper, the HB driver is designed for linear actuators with consideration for the prevention of shoot-through.Methods: The propagation delay of logic gates are used to postpone the arrival gate drive signal for high/low side MOSFETs resulting in short circuit elimination on the DC source. Results: As mentioned, logic gates’ propagation delay by their values causes interruption between the high and low-side power switches gate drive signal resulting in shoot-through elimination. Although the existence of DT influences the performance of the rotational speed and output torque of a DC motor by increasing the distortion and pulse interval, Linear actuators due to low-velocity linear motion do not require the PWM control, therefore DT has no substantial effect on driver performance. Conclusion: Simulation and experimental results validate the method proposed in this paper. According to the specifications of the circuit designed in this paper, for loads that do not need rotational speed control, logic gates with proper propagation delay can be chosen to eliminate short circuits in complementary MOS switches without requiring DT compensation methods.

کلیدواژه ها

H-Bridge, Dead-time, Shoot-through, Logic gates, Propagation delay

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.