The effects of depolarization of Pb(Zr(0.52)Ti(0.48))O(3) (PZT 52∕48) poled ferroelectrics by cylindrical radially expanding shock waves propagated along and across the polarization vector P(0) were experimentally detected. Miniature (total volume 100 cm(3)) autonomous generators based on these effects were capable of producing output voltage pulses with amplitudes up to 25 kV and output energies exceeding 1 J.