Pulse generation employing parallel resonant LC circuit for ener

Details Pulse generation employing parallel resonant LC circuit for ener Pulse generation employing parallel resonant LC circuit for ener

1977-12-23

1979-06-05

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

324 4, 361156, H01H 4732

Patent

active

041575792

ABSTRACT:
A pulse generator for energizing a coil with periodic bipolar current pulses of predetermined aplitude, period and repetition rate and of generally square wave form. The coil to be energized is connected in parallel with a capacitor to form a closed under damped tuned circuit of predetermined frequency. Current flowing through the coil is suddenly interrupted, causing a sinusoidal voltage to be generated across the tuned circuit. The current flowing through the coil rapidly changes according to a cosine function. At a time when the current has reached its maximum positive or negative value or slightly before, controlled rectifiers in the circuit between the power source and the tuned circuit are caused to conduct thus maintaining the current in the coil at a level substantially equal to the maximum value. At the end of a predetermined interval, the supply of direct current to the tuned circuit again abruptly is interrupted, thus defining another edge of a pulse. The operation is repeated cyclically, and in this manner pulses of generally square wave form are generated periodically.

REFERENCES:
patent: 3317744 (1967-05-01), Geleynse
patent: 3400304 (1968-09-01), Ziegler
patent: 3467894 (1969-09-01), Blume
patent: 3736589 (1973-05-01), Rambo
patent: 3852659 (1974-12-01), Barringer

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