Back to results
US 4,293,903 AGranted
High voltage rectifier for television receiver sets
AssigneeHitachi, Ltd.
InventorsHideyuki Mochida, Shingo Tamura, Etsuo Tsurumi
Life of this patent
Estimating the term…
Abstract
In a high voltage rectifier for use in a television receiver set, a resistor block is incorporated therein to produce focusing and screen voltages, and a focusing voltage feeder for supplying the focusing voltage to a cathode ray tube is covered by a screen voltage feeder for supplying the screen voltage to the cathode ray tube to form a unitary high voltage insulated cable.
Claims5
A high voltage rectifier for use in a television receiver set comprising:
- (a) a core;
- (b) a primary coil wound on a primary coil bobbin mounted on the core;
- (c) rectifier means including a plurality of secondary coils wound on a secondary coil bobbin which surrounds the primary coil bobbin, and one or more diodes connected in series with the plurality of secondary coils;
- (d) a casing which houses said primary and secondary coils and said diodes;
- (e) an insulating resin material filled in the casing to make integral the primary coil, secondary coils and diodes and to provide electrical insulation therebetween;
- (f) a resistor block, electrically connected to said rectifier means, for dividing voltage developing at said rectifier means so as to generate a first voltage and a second voltage which is lower than the first voltage;
- (g) means for fixing the resistor block to said casing near said secondary coils;
- (h) a first electrical conductor, electrically connected to said resistor block, for picking up the first voltage from said resistor block;
- (i) a second electrical conductor, electrically connected to said resistor block, for picking up the second voltage from said resistor block, said second electrical conductor surrounding the first electrical conductor to sealingly cover it and extending in the same direction as the first electrical conductor;
- (j) a first insulating member, interposed between the first and second electrical conductors, for insulating the two conductors under the application of DC voltage;
- and
- (k) a second insulating member covering the second electrical conductor.
9 more elements
Dependencies are inferred from the claim text.