Sawtooth waveform generator

Claim 2

In combination: first, second and third terminals, circuit means including a reactance having a given value connected directly between said first and second terminals, a first resistance having a given value connected directly between said first and third terminals, and a second resistance having a given value connected directly between said second and third terminals, and cyclically controlled energizing means having a given cycle frequency coupled to said first, second and third terminals for applying an energization signal in a given direction to said reactance during each odd cycle of said energization signal and for applying said energization signal to said reactance during each even cycle of said energization signal in a reverse direction with respect to said given direction to thereby produce a sawtooth waveform solely at one of said first and second terminals solely during said odd cycle when said energization signal is applied in said given direction and a sawtooth waveform solely at the other of said first and second terminals solely during said even cycle when said energization signal is applied in said reverse direction, said circuit means interdigitizing said waveforms whereby a continuous sawtooth waveform is produced for each said cycle.

Claim 3

In combination: first, second and third terminals, circuit means including a reactance having a given value connected directly between said first and second terminals, a first resistance having a given value connected directly between said first and third terminals, and a second resistance having a given value connected directly between said second and third terminals, and cyclically controlled energizing means having a given cycle frequency coupled to said first, second and third terminals for applying an energization signal in a given direction to said reactance during each odd cycle of said energization signal and for applying said energization signal to said reactance during each even cycle of said energization signal in a reverse direction with respect to said given direction to thereby produce a sawtooth waveform solely at one of said first and second terminals solely during said odd cycle when said energization signal is applied in said given direction and a sawtooth waveform solely at the other of said first and second terminals solely during said even cycle when said energization signal is applied in said reverse direction, said circuit means interdigitizing said waveforms whereby a continuous sawtooth waveform is produced for each said cycle.

Claim 4

In combination: first, second and third terminals, circuit means including a reactance having a given value connected directly between said first and second terminals, a first resistance having a given value connected directly between said first and third terminals, and a second resistance having a given value connected directly between said second and third terminals, and cyclically controlled energizing means having a given cycle frequency coupled to said first, second and third terminals for applying an energization signal in a given direction to said reactance during each odd cycle of said energization signal and for applying said energization signal to said reactance during each even cycle of said energization signal in a reverse direction with respect to said given direction to thereby produce a sawtooth waveform solely at one of said first and second terminals solely during said odd cycle when said energization signal is applied in said given direction and a sawtooth waveform solely at the other of said first and second terminals solely during said even cycle when said energization signal is applied in said reverse direction, said circuit means interdigitizing said waveforms whereby a continuous sawtooth waveform is produced for each said cycle.

Claim 5

The combination of claim 1 wherein said reactance is an inductance and said energization means includes means for selectively applying a voltage of a given polarity and value across said inductance in each odd cycle and a voltage of a polarity opposite said given polarity and of substantially the same value as said given value in each even cycle to selectively reverse the direction of current flow in said inductance.

Claim 6

In combination, first, second and third terminals, circuit means including a capacitance having a given value connected directly between said first and second terminals, a first resistance having a given value connected directly between said first and third terminals, and a second resistance having a given value connected directly between said second and third terminals, and cyclically controlled switch means having a given cycle frequency coupled to said first and second terminals for selectively applying a direct current to one of said first and second terminals during each odd cycle of said switch means and for selectively applying a direct current to the other of said first and second terminals during each even cycle of said switch means to thereby produce a sawtooth waveform solely at said other terminal solely during said odd cycle and a sawtooth waveform solely at said one terminal solely during said even cycle, said circuit means interdigitizing said waveforms such that a continuous sawtooth waveform is produced for each said cycle.

Claim 7

In combination, first, second and third terminals, circuit means including a capacitance having a given value connected directly between said first and second terminals, a first resistance having a given value connected directly between said first and third terminals, and a second resistance having a given value connected directly between said second and third terminals, and cyclically controlled switch means having a given cycle frequency coupled to said first and second terminals for selectively applying a direct current to one of said first and second terminals during each odd cycle of said switch means and for selectively applying a direct current to the other of said first and second terminals during each even cycle of said switch means to thereby produce a sawtooth waveform solely at said other terminal solely during said odd cycle and a sawtooth waveform solely at said one terminal solely during said even cycle, said circuit means interdigitizing said waveforms such that a continuous sawtooth waveform is produced for each said cycle.

Claim 8

The combination of claim 3 wherein said cyclically controlled switch means includes means for generating a periodic signal at said given frequency, and first and second switch means responsive to saiD periodic signal applied thereto for applying said direct current to one of said first and second terminals during said odd cycle and to the other of said first and second terminals during said even cycle.

Claim 9

The combination of claim 4 wherein said first and second switch means each include a separate, different switch each having open and closed states and responsive to a switch control signal applied as an input thereto for selectively placing each of said switches in a selected one of said states and a flip-flop coupled between said signal generating means and said switches for generating said switch control signal in response to said periodic signal applied as an input thereto, said switch control signal placing one of said switches in the open state and the other switch in the closed state in an odd cycle and said one switch in the closed state and the other switch in the open state in an even cycle.

Claim 10

In combination: first, second and third terminals, a pair of input terminals for receiving a direct current applied as an input thereto, a capacitance coupled between said first and second terminals, first switch means having open and closed switch conditions coupled between one of said input terminals and said first terminal, second switch means having open and closed switch conditions coupled between the other of said input terminals and said second terminal, means for coupling said input terminals to said third terminal, a first resistance having a given value connected directly between said first and third terminals, a second resistance having a given value connected directly between said second and third terminals, and means for cyclically controlling at a given frequency the switch condition of said first and second switch means so as to place one of said switch means in said closed switch condition and the other switch means in said open switch condition during each odd cycle and to place said one switch means in said open switch condition and said other switch means in said closed switch condition during each even cycle, said received direct current being applied to one of said first and second terminals in all even cycles and to the other of said first and second terminals in all odd cycles to thereby produce a sawtooth waveform solely at said one terminal in all odd cycles and solely at said other terminal in all even cycles, said resistances interdigitizing said waveforms whereby a continuous sawtooth waveform is produced for each said cycle at said third terminal.

Claim 11

In combination: first, second and third terminals, a pair of input terminals for receiving a direct current applied as an input thereto, a capacitance coupled between said first and second terminals, first switch means having open and closed switch conditions coupled between one of said input terminals and said first terminal, second switch means having open and closed switch conditions coupled between the other of said input terminals and said second terminal, means for coupling said input terminals to said third terminal, a first resistance having a given value connected directly between said first and third terminals, a second resistance having a given value connected directly between said second and third terminals, and means for cyclically controlling at a given frequency the switch condition of said first and second switch means so as to place one of said switch means in said closed switch condition and the other switch means in said open switch condition during each odd cycle and to place said one switch means in said open switch condition and said other switch means in said closed switch condition during each even cycle, said received direct current being applied to one of said first and second terminals in all even cycles and to the other of said first and second terminals in all odd cycles to thereby produce a sawtooth waveform solely at said one terminal in all odd cycles and solely at said other terminal in all even cycles, said resistances interdigitizing said waveforms whereby a continuous sawtooth waveform is produced for each said cycle at said third terminal.

Claim 12

The combination of claim 6 wherein said first switch means includes a first diode coupled between said first terminal and one of said input terminals and a second diode coupled between said second terminal and the other of said input terminals.