Alternating current static control system

Claim 2

In an alternating current static control system, a pair of conductors connected to an alternating current source, resistor means connected directly to one of said conductors, a plurality of parallel connected signal input lines operatively connected to said conductors and to said resistor means so as to produce a predetermined voltage drop across said resistor means in response to the existence of a predetermined logic function in said input lines, a third conductor, means connecting said third conductor to said pair of conductors so that said third conductor constitutes a reference voltage line, circuit means connecting said third conductor to said resistor means, means in said circuit means providing for flow of current therethrough only when said predetermined voltage drop condition exists, and capacitor means in said circuit means chargeable in response to said current flow.

Claim 3

In an alternating current static control system according to claim 1, transistor means connected to said resistor means which conducts when the predetermined voltage drop occurs at said resistor means, second resistor means connected to said transistor means to establish the said predetermined voltage level for conduction, third resistor means connected to said transistor means to provide electric current limiting when said transistor conducts, diode means connected to said transistor means to provide reverse voltage breakDown protection and alternating current isolation, said capacitor means being connected to said transistor means and chargeable during conduction of said transistor means.

Claim 4

In an alternating current static control system according to claim 1, input diode means in each of said plurality of input lines to divert electric current in response to alternating current input signals from said first resistor means so that said predetermined voltage drop in the said resistor means can be accomplished, additional resistor means connected to said input diode means to provide a normal predetermined current level in said first resistor means when electric current is not being diverted through said input diode means in response to a said alternating current logic function.

Claim 5

In an alternating current static control system according to claim 2, amplifier means, means connecting said amplifier means to said capacitor means, said capacitor means being connected in said system so that it is capable of storing electric energy during conduction of said transistor means and providing energy to said means between periods of conduction of said transistor means.

Claim 6

An alternating current logic control system comprising resistor means having one end operatively connected to one terminal of an alternating current source, a plurality of signal input lines responsive to external logic functions, directional circuit means connected to said resistor means and operatively connecting said signal input lines in parallel with each other to the one alternating current source terminal for causing a predetermined level of current to flow through said resistor means when a preselected logic relationship exists among said input lines during corresponding first half cycles of said alternating current source and blocking the passage of current through said resistor means during the second half cycles, a storage circuit, and controllable circuit means connected to said resistor means for charging said storage circuit during said first half cycles, said storage circuit discharging during said second half cycles.

Claim 7

An alternating current logic control system comprising resistor means having one end operatively connected to one terminal of an alternating current source, a plurality of signal input lines responsive to external logic functions, directional circuit means connected to said resistor means and operatively connecting said signal input lines in parallel with each other to the one alternating current source terminal for causing a predetermined level of current to flow through said resistor means when a preselected logic relationship exists among said input lines during corresponding first half cycles of said alternating current source and blocking the passage of current through said resistor means during the second half cycles, a storage circuit, and controllable circuit means connected to said resistor means for charging said storage circuit during said first half cycles, said storage circuit discharging during said second half cycles.

Claim 8

The logic control system of claim 5 wherein said controllable circuit means includes a pair of terminals, a control input operatively connected to said resistor means for causing conduction between said terminals in response to said predetermined current level in said resistor means, and diode means connecting one of said controllable circuit means terminals to the one alternating current terminal.

Claim 9

The logic control system of claim 6 wherein said storage circuit means includes impedance means and a capacitor means operatively connected in parallel between the other controllable circuit means terminal and the other alternating current terminal for charging said capacitor means during first alternating current half cycle and discharging said capacitor means through said impedance means during second alternating current half cycle.

Claim 10

The alternating current logic control system of claim 5 wherein said directional circuit means comprises a plurality of pairs of first and second series-connected opposed diodes, the junctions thereof being operatively connected in circuit with the other alternating current terminal; said input lines being connected to the first diode in selected ones of said pairs; and said resistor means being connected in circuit between each second diode and the one alternating current terminal.

Claim 11

The logic control system of claim 8 further comprising a plurality of resistor elements operatively connecting respective junctions of said diode pairs in parallel in circuit with the other alternating current terminal.

Claim 12

The logic control system of claim 5 wherein the directional circuit includes a plurality of diodes and a single diode; said input lines selectively connected to respective ones of said plurality of diodes on one side in parallel; all of said diodes being operatively connected to the other alternating current terminal; said sIngle diode being operatively connected to all of said plurality of diodes in direction of opposition therewith; and said resistor means being connected between said single diode and the one alternating current terminal.

Claim 13

The logic control system of claim 10 further comprising a resistor element operatively connecting the junction of said single diode and said plurality of diodes in parallel to the other alternating current terminal.