System for the adjustment of the phase position of an alternating voltage

Claim 1

A system for adjusting phase position of an alternating voltage input signal to derive a phase-adjusted output signal comprising: network means having an input terminal and two output terminals for receiving said input signal on said input terminal and for respectively providing on said two output terminals two network output signals phase-displaced with respect to each other, phase-inversion means comprising a pair of transformers, each having a primary and a center-tapped symmetrical secondary winding, said two network output signals being connected to the respective primary windings, whereby a signal appears at one end of each secondary winding which is equivalent to the noninverted corresponding network output signal and a signal appears at the other end of each secondary winding which is equivalent to the phase-inverted corresponding network output signal, a center-tap of each center-tapped secondary winding being coupled to a fixed potential, switch means comprising four selectively-operable voltagecontrolled electronic switches, four Zener diodes for respectively connecting the four dignals from the ends of the secondary windings of the pair of transformers to the four electronic switches, and signal combining means having input and output terminals, capacitor means for connecting the signals from the four switches to input terminals of said signal combining means, whereby said signal combining means adds the signals from whichever of said four switches is selectively operated, whereby, by selective operation of the switch means, a phase adjusted output signal appears on the output terminal of the signal combining means.

Claim 2

A system for adjusting phase position of an alternating voltage input signal to derive a phase-adjusted output signal comprising: network means having an input terminal and two output terminals for receiving said input signal on said input terminal and for respectively providing on said two output terminals two network output signals phase-displaced with respect to each other, phase-inversion means comprising a pair of transformers, each having a primary and a center-tapped symmetrical secondary winding, said two network output signals being connected to the respective primary windings, whereby a signal appears at one end of each secondary winding which is equivalent to the noninverted corresponding network output signal and a signal appears at the other end of each secondary winding which is equivalent to the phase-inverted corresponding network output signal, a center-tap of each center-tapped secondary winding being coupled to a fixed potential, switch means comprising four selectively-operable voltagecontrolled electronic switches, four Zener diodes for respectively connecting the four dignals from the ends of the secondary windings of the pair of transformers to the four electronic switches, and signal combining means having input and output terminals, capacitor means for connecting the signals from the four switches to input terminals of said signal combining means, whereby said signal combining means adds the signals from whichever of said four switches is selectively operated, whereby, by selective operation of the switch means, a phase adjusted output signal appears on the output terminal of the signal combining means.

Claim 3

A system for adjusting phase position of an alternating voltage input signal comprising: A source of input signals, a network having an input connected to the source and having first and second outputs for respectively providing on the two outputs two network output signals phase displaced with respect to each other, first and second phase transmitting means respectively connected to the first and second network outputs for transmitting the network output signals, first and second phase reversing means respectively connected to the first and second network outputs for reversing the network output signals, individual voltage-controlled electronic switch means serially connected to each of the transmitting means and the reversing means for completing signal circuits, switch controlling means connected to switches for selecting transmitted and reversed signals, and signal combining means having inputs connected to the switches and having an output for combining selected transmitted and reversed signals into a single phase adjusted signal, which appears at the output.

Claim 4

A system for adjusting phase position of an alternating voltage input signal comprising: A source of input signals, a network having an input connected to the source and having first and second outputs for respectively providing on the two outputs two network output signals phase displaced with respect to each other, first and second phase transmitting means respectively connected to the first and second network outputs for transmitting the network output signals, first and second phase reversing means respectively connected to the first and second network outputs for reversing the network output signals, individual voltage-controlled electronic switch means serially connected to each of the transmitting means and the reversing means for completing signal circuits, switch controlling means connected to switches for selecting transmitted and reversed signals, and signal combining means having inputs connected to the switches and having an output for combining selected transmitted and reversed signals into a single phase adjusted signal, which appears at the output.

Claim 7

A system for adjusting phase position of an alternating voltage input signal comprising: a source of input signals, a network having an input connected to the source and having first and second outputs for respectively providing on the two outputs two network output signals phase displaced with respect to each other, first and second phase transmitting means respectively connected to the first and second network outputs for transmitting the network output signals, first and second phase reversing means respectively connected to the first and second network outputs for reversing the network output signals, individual switch means serially connected to each of the transmitting means and the reversing means for completing signal circuits, switch controlling means connected to switches for selecting transmitted and reversed signals, and signal combining means having inputs connected to the switches and having an output for combining selected transmitted and reversed signals into a single phase adjusted signal, which appears at the output, the individual switch means comprising voltage controlled electronic switches serially connected between the transmitting means and the combining means and between the reversing means and the combining means, the switches associated with one network output being mutually reversed unidirectionally conducting switches, and the switch controlling means comprising line means for applying positive or negative voltage to the switches whereby one switch associated with a network output is turned on while another switch associated with that network output is turned off.

Claim 8

A system for adjusting phase position of an alternating voltage input signal comprising: a source of input signals, a network having an input connected to the source and having first and second outputs for respectively providing on the two outputs two network output signals phase displaced with respect to each other, first and second phase transmitting means respectively connected to the first and second network outputs for transmitting the network output signals, first and second phase reversing means respectively connected to the first and second network outputs for reversing the network output signals, individual switch means serially connected to each of the transmitting means and the reversing means for completing signal circuits, switch controlling means connected to switches for selecting transmitted and reversed signals, and signal combining means having inputs connected to the switches and having an output for combining selected transmitted and reversed signals into a single phase adjusted signal, which appears at the output, the individual switch means comprising voltage controlled electronic switches serially connected between the transmitting means and the combining means and between the reversing means and the combining means, the switches associated with one network output being mutually reversed unidirectionally conducting switches, and the switch controlling means comprising line means for applying positive or negative voltage to the switches whereby one switch associated with a network output is turned on while another switch associated with that network output is turned off.