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This 8051 microcontroller-based control circuit adjusts the speed of a small permanent-magnet dc motor via photosensors (see the figure). The circuit can find applications in light-tracking ...

KEYWORDS: DC Motors, Arduino UNO, PWM, H-Bridge, Microcontroller JOURNAL NAME: Open Access Library Journal, Vol.12 No.3, March 14, 2025 ABSTRACT: This paper describes the development and ...

Motor speed can be adjusted by the light intensity falling into the photoresistors LDR1 and LDR2. These resistors control the bias points of two transistors connected via an input inverting buffer ...

The DC motor speed control project is intended to manage the pace of a DC motor by means of an 8051 sequence micro-controller. The pace of DC motor is straightforwardly relative to the voltage ...

This paper presents a DC motor speed controlling technique under varying load condition. The linear system model of separately excited DC motor with Torque-variation is designed using PID controller.

Figure 1 shows a dedicated protection circuit based on a small microcontroller and a power FET. This project uses an eight-pin flash-memory MC68HC908QT2 from Freescale and an IRF520A FET from ...

Controlling the PWM duty cycle is equivalent to controlling the motor terminal voltage, which in turn adjusts directly the motor speed. Experimental results have been obtained that show the employment ...