Television receiver high voltage generator

In a television display system having a picture tube that requires an ultor accelerating potential and an intermediate direct voltage, a high voltage generator for developing the two voltages, comprising:

• a source of alternating voltage;
• a transformer including a primary winding and first and second high voltage secondary windings, said primary winding being coupled to said source for developing an alternating polarity voltage across each of the two high voltage secondary windings;
• an ultor terminal, an intermediate voltage terminal and a reference terminal;
• a first voltage doubler coupled to said first high voltage winding for rectifying the alternating polarity voltage developed across said first high voltage winding during both polarity intervals thereof to produce a first direct voltage, said first direct voltage being applied to said intermediate voltage terminal to generate said picture tube intermediate direct voltage between said intermediate voltage terminal and said reference terminal;
• and
• a second voltage doubler coupled to said second high voltage winding for rectifying the alternating polarity voltage developed across said second high voltage winding during both polarity intervals thereof to produce a second direct voltage, said first and second direct voltages being combined and applied to said ultor terminal to generate said picture tube ultor accelerating potential between said ultor terminal and said reference terminal, wherein each of said two voltage doublers includes a first rectifier coupled to a respective high voltage secondary winding, a capacitance coupled to said first rectifier for developing across said capacitance during a respective first polarity interval a rectified voltage from the alternating polarity voltage developed across the respective high voltage secondary winding, and a second rectifier coupled to one of said capacitance and respective high voltage secondary winding for rectifying the alternating polarity voltage developed across the respective high voltage secondary winding during the respective other polarity interval and adding the rectified voltage to the voltage developed across said capacitance.

In a television display system having a picture tube that requires an ultor accelerating potential and an intermediate direct voltage, a high voltage generator for developing the two voltages, comprising:

• a source of alternating voltage;
• a transformer including a primary winding, first and second high voltage secondary windings and a magnetizable core, with the primary and two high voltage secondary windings being wound around portions of said core and wherein one of the two high voltage secondary windings comprises first and second winding sections that together with the other high voltage secondary winding are bound longitudinally around a common leg of said core such that said other high voltage secondary winding is interposed between said first and second winding sections, said primary winding being coupled to said source for developing an alternating polarity voltage across each of the two high voltage secondary windings;
• an ultor terminal, an intermediate voltage terminal and a reference terminal;
• a first voltage doubler coupled to said first high voltage winding for rectifying the alternating polarity voltage developed across said first high voltage winding during both polarity intervals thereof to produce a first direct voltage, said first direct voltage being applied to said intermediate voltage terminal to generate said picture tube intermediate direct voltage between said intermediate voltage terminal and said reference terminal;
• and
• a second voltage doubler coupled to said second high voltage winding for rectifying the alternating polarity voltage developed across said second high voltage winding during both polarity intervals thereof to produce a second direct voltage, said first and second direct voltages being combined and applied to said ultor terminal to generate said picture tube ultor accelerating potential between said ultor terminal and said reference terminal.