Electricity: power supply or regulation systems – Output level responsive – Using a transformer or inductor as the final control device
Patent
1997-02-28
1998-09-15
Wong, Peter S.
Electricity: power supply or regulation systems
Output level responsive
Using a transformer or inductor as the final control device
323340, G05F 114
Patent
active
058084541
ABSTRACT:
An alternating current power control device including a phase comparison controller for comparing a phase of an input voltage with that of a first reference voltage, a single-winding transformer for varying the input voltage, a mutual induction reactor for lowering the input voltage by a desired level in response to an output voltage from the single-winding transformer, an output voltage comparator for comparing an output voltage with a second reference voltage, an output current comparator for comparing an output current with a reference current, an OR logic controller for performing an OR operation with respect to output signals from the phase comparison controller and output current comparator, and a switch array for selectively transferring the output voltage from the single-winding transformer to the mutual induction reactor in response to output signals from the output voltage comparator and OR logic controller. According to the present invention, the mutual induction reactor is implemented on the basis of the principle of a linear transformer and has a small capacity corresponding to about 1/10 of a load power. Therefore, a proper power necessary to the saving of energy can be supplied by using the mutual induction reactor.
REFERENCES:
patent: 4623834 (1986-11-01), Klingbiel et al.
patent: 4860145 (1989-08-01), Klingbiel
patent: 5628202 (1997-05-01), Lee et al.
Han Y. J.
Wong Peter S.
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