Regulated deflection circuit with regulator switch controlled by deflection current

A horizontal deflection circuit arrangement adapted to be operated from a source of unregulated direct voltage, comprising:

• a deflection winding;
• linearity capacitance means serially coupled with said deflection winding to form a first series circuit;
• damper rectifier means coupled across said first series circuit to form a first parallel circuit;
• input inductance means having one end coupled to a first end of said first parallel circuit and the other end coupled to a first terminal of said source of unregulated voltage.
• first controlled unidirectional switch means operated at the deflection rate for defining periodic trace and retrace intervals;
• second controlled bidirectional switch means serially coupled with said first switch means at a junction to form a second series circuit, said second series circuit being coupled in parallel with said first parallel circuit;
• second capacitance means having one end coupled with a second end of said first parallel circuit and having the other end coupled to a second terminal of said source of unregulated voltage for establishing a stabilized direct operating voltage for the deflection circuit equal to the difference between said unregulated direct voltage and the voltage across said second capacitance means;
• second inductance means having one end coupled to said junction and the other end coupled to said second terminal of said source of unregulated voltage for providing a current path for discharging said second capacitance means;
• and
• energy recovery means coupled with said second inductance means and with said source of unregulated voltage for transferring the energy stored in said second inductance means to said source of unregulated voltage.

A self-regulating deflection circuit adapted to be energized by a source of unregulated direct voltage, comprising:

• first and second controllable switch means, having first and second controllable current paths coupled in series at a first junction to form a first series combination, and having respective first and second control electrodes;
• a deflection winding;
• linearity capacitance means for coupling said deflection winding across said first series combination, to form a first parallel combination, said linearity capacitance means being serially coupled with said deflection winding;
• first capacitance means coupled in series with said source of unregulated direct voltage and forming a second junction point therebetween, the end of said unregulated voltage source and of said first capacitance means remote from said second junction point forming terminals of a second source of direct voltage;
• first inductance means coupling said first parallel combination across the terminals of said second source of direct voltage;
• second inductance means coupling said first junction point with said second junction point;
• and
• control means coupled with said first and second control electrodes for operating said first and second switch means for promoting the flow of deflection current at the deflection rate and for recurrently discharging said first capacitance means to thereby regulate the voltage of said second source.

A regulated deflection circuit, comprising:

• a source of unregulated voltage;
• a deflection winding;
• a first capacitance coupled to said deflection winding;
• a second capacitance coupled to said first capacitance and said source of unregulated voltage;
• means for charging said first and second capacitances from said source of unregulated voltage;
• inductance means;
• switching means coupled to said deflection winding for applying a first voltage to said deflection winding during a trace interval for generating a deflection current in said deflection winding during said trace interval, said switching means coupling said inductance means to said second capacitance for providing a path for the flow of current in said second capacitance through said inductance means for controlling the voltage across said second capacitance, said first voltage being established as a value representative of the voltage difference between said unregulated voltage and the voltage maintained across said second capacitance;
• and
• means responsive to a change in a voltage level within said deflection circuit for varying the current flow in said inductance means for varying the voltage across said second capacitance for regulating said voltage level.