Abstract:
The present paper presents few issues regarding the PWM (pulse width modulation) control of a DC motor using a power MOSFET driver. There are shown the algorithms and the calculations used to determine the switching times and switching power dissipation of the MOSFET. The calculations are based on the device datasheet specifications and are verified by lab tests and measurements. The paper is based on the authors’ experience in the automotive electronics design and analysis field and wants to be a useful tool for the design engineers, which will be involved in the DC motor control design.
