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Development efforts in the power tools industry are focused increasingly towards the creation of smart, energy efficient tools. Special care is given to making products that are portable, ergonomic, and quiet. These driving forces have led to the broadening of the customer demographic as more do-it-yourself home users begin to purchase higher quality tools.
Allegro offers a variety of devices suitable for these products. In general, the use of magnetic Hall sensors as mirrors of mechanical events is a contact-less and more reliable solution for the sensing of position, linear-motion, or angle. Power-drill throttles using a linear hall with a PWM output are a great example of such an implementation. The advent of brushless DC motors provides high-reliability operation and requires efficient driver IC’s. Allegro provides extensive driver solutions for both brushed and brushless DC motors. Allegro’s power management and Hall based current sensing solutions are also a great fit for such applications.