Piezoelectric fiber composite transducers harvest mechanical energy and convert it into electrical energy. There are a number of advantages of piezoelectric fiber composite transducers over bulk ceramics:

• Due to their composite nature, piezoelectric fiber composites are lighter, more flexible and robust than bulk piezoelectric ceramics.
• ACI's piezoelectric fiber composites produce 500 V(p-p) (at resonance frequency of 35 Hz, 0.9lbf) that can charge a 400 uF capacitor to 50 V in less than 4 seconds, and have been configured to yield a continuous 145mW of power.
• Higher piezoelectric voltage coefficients (g33) can be obtained from piezoelectric fiber composites than bulk piezoelectric ceramics. This means more power generated.
• Transducers can be created to user defined shapes inexpensively (including complex shapes).

Piezoelectric fiber composite transducers may be used singly, or multiple in parallel, to accumulate electric power over an extended period of time for energizing low power microelectronics.