UNLIKE-POLARITY PULSE BURST SHAPER Russian patent published in 2006 - IPC H03K3/64 H03K3/53 H03K5/156 

FIELD: pulse engineering; bipolar ion producers, static electricity neutralizers, various dust-separating air cleaners.

SUBSTANCE: proposed unlike-polarity high-voltage pulse burst shaper has bridge voltage selector switch with booster capacitor 8 and primary winding 21 of transformer 22 connected across its two diagonally opposite terminals; voltage selector switch arms in first and second switches 4 and 15, respectively, are made in the form of complementary emitter follower built around transistors 5, 6, 16, 17 and on output-pulse polarity control unit, such as EXCLUSIVE OR gate 3 whose two inputs are connected to first and second input buses 1 and 2, respectively; newly introduces is third switch 9 having three states at output and connected to common point of capacitor 8 and winding 21; signal input and three-state control input are connected to buses 1 and 2; second switch 15 also has three states at output; three-states of switches 15 and 9 are changed over by means of opposite-phase signals supplied from external source to bus 2.

EFFECT: ability of shaping unlike-polarity pulse bursts of backswing-free unipolar pulses.

1 cl, 2 dwg