Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1991-06-14
1993-03-23
Zazworsky, John
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307108, 307358, H03K 302
Patent
active
051967359
ABSTRACT:
A circuit arrangement is described with the aid of which a control signal can be indicated in dependence upon reaching a predetermined desired value voltage at an energy-storage element at the end of a charging cycle. In the course of said charging cycle the energy-storage element is charged by rectification of an HF carrier pulse. The circuit arrangement contains a signal-storage element (FF) which in the active state emits a control signal. Furthermore, an envelope detector circuit (DE, CE, RE, T2) is provided which furnishes a switching signal in dependence upon the termination of the HF carrier-oscillation pulse. A voltage comparator (R3, T3, R4, C2, R1, R2, OP) compares a voltage value dependent on the voltage value at the energy-storage element (CC) with a voltage value which is related to the voltage value at the energy-storage element (CC) in such a manner that in the presence of the desired voltage value at the energy-storage element (CC) the compared voltage values are equal. On identity of the compared voltage values the voltage comparator emits an activiating signal for the storage element (FF) which sets the latter to the active state. On receiving the control signal furnished by the envelope detector circuit a switching means (A1, A2, T1) applied to the voltage comparator the voltage at the energy-storage element (CC) as supply voltage while on receiving the control signal furnished by the signal-storage element (FF) it separates the voltage comparator from its supply voltage.
REFERENCES:
patent: 4153871 (1979-05-01), Loucks
patent: 4367423 (1983-01-01), Hornung
patent: 4398156 (1983-08-01), Aaland
Meier Herbert
Sellmeir Martin
Donaldson Richard L.
Kesterson James C.
Texas Instruments Deutschland GmbH
Zazworsky John
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