Circuit arrangement to generate squarewave signals with constant

Details Circuit arrangement to generate squarewave signals with constant Circuit arrangement to generate squarewave signals with constant

1986-11-24

1988-04-05

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307234, 307228, 307355, 328133, 328 58, H03K 3017, H03K 522

Patent

active

047361182

ABSTRACT:
The circuit arrangement generates square-wave signals whose recurrence frequency coincides with the recurrence frequency of input signals supplied to it and whose duty cycle is constant, irrespective of the recurrence frequency. The circuit arrangement contains a flip-flop set by each input signal and reset by reset signals. The square-wave signals are emitted at the output of the flip-flop. A first integrator circuit of relatively great time constant is discharged or charged when the flip-flop is set or reset, respectively. Another integrator circuit is charged whenever the flip-flop is set. The instantaneous voltages at outputs of integrator circuits are compared with each other, and when they are the same the comparator generates the reset signal. In addition, the second integrator circuit is discharged, and renewed charging is prevented as long as the flip-flop is reset.

REFERENCES:
patent: 3753012 (1973-08-01), Frederiksen et al.
patent: 3883756 (1975-05-01), Dragon
patent: 3944938 (1976-03-01), Brovant
patent: 4276860 (1981-07-01), Caparka
patent: 4404481 (1983-09-01), Ide et al.
patent: 4532442 (1985-07-01), Black
patent: 4620312 (1986-10-01), Yamashita

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