"Tiny Cooling Fan" is a dedicated driver IC can drive inductive loads, such as: high-power DC motors and stepper motors, can drive 46V, 2A below the motor. Its input can be connected directly to the micro controller, and can achieve the motor forward, reverse, acceleration and deceleration control. "Tiny Cooling Fan" has two power supplies, respectively, logic supply and power supply, 6V power supply for logic. 12V for power supply. Overall, the design is relatively simple, for the voice recognition technology is have a new understanding, to fully grasp the principle of "Tiny Cooling Fan" of its technology. Also, voice recognition is a very promising new project can be applied to a variety of new projects coming new, wide application range, high reliability. Is a promising innovation projects!