Solid-state television receiver with magnetically regulated power supply

Claim 1

A television receiver providing substantially undegraded performance under even extremely low line-voltage conditions without excessive high-voltage and X-ray generation under even extremely high line voltage conditions, and having greatly improved reliability against component failure, said receiver comprising: a cathode-ray tube image-reproducing device having one or more thermionic cathodes with one or more associated heater elements, a phosphor screen requiring application of a predetermined unidirectional operating voltage, and focus electrode means requiring a unidirectional operating potential lower than the operating voltage required by said phosphor screen; an all-solid-state chassis for actuating said image-reproducing device to develop television pictures, said chassis comprising a. signal receiving, detecting and amplifying means for applying television picture signals to said image-reproducing device, b. deflection control means associated with said imagereproducing device for effecting electron beam scansion of said phosphor screen, and including a reaction-type scanning generator and high-voltage supply for generating said unidirectional operating voltage for application to said phosphor screen and said unidirectional operating potential for application to said focus electrode means, and c. an alternating-current-responsive low-voltage power supply comprising a self-limiting voltage-regulating power transformer having an output secondary winding tuned to the line-voltage power supply frequency and provided with highvoltage and low-voltage output winding sections each symmetrically disposed relative to a, grounded center tap, a first full-wave rectifier comprising a pair of solid-state diodes coupled to said high-voltage winding section to provide a first DC operating potential, a second full-wave rectifier comprising a pair of solid-state diodes coupled to said second output winding section to provide a second DC operating potential at a voltage level lower than said first DC operating potential, means for using said first DC operating potential for energizing said deflection control means, and means for using said second DC operating potential for energizing said signal receiving, detecting and amplifying means.