Linear monostable multivibrator

Claim 2

A linear monostable multivibrator comprising: a capacitor; first and second transistors having base, emitter, and collector electrodes, the collector electrode of said first transistor being connected to the base electrode of said second transistor through a resistor network, the collector electrode of said transistor being connected through said capacitor to the base electrode of said first transistor, said first transistor being biased to conduct in the stable condition of the multivibrator and said second transistor being biased to conduct in the unstable condition of the multivibrator; trigger means for causing the multivibrator to switch to its unstable condition; a source of constant current for charging said capacitor; means responsive to the accumulation of a predetermined charge on said capacitor for switching the multivibrator to its stable condition; and variable potential means for controlling the potential which said capacitor assumes upon the switching of the multivibrator to its unstable condition, the period of time of the unstable condition of the multivibrator being linearly related to the potential of said variable potential means.

Claim 5

A linear monostable multivibrator comprising: a capacitor; first and second transistors having base, emitter, and collector electrodes, the collector electrode of said first transistor being connected to the base electrode of said second transistor through a resistor network, the collector electrode of said second transistor being connected through said capacitor to the base electrode of said first transistor, said first transistor being biased to conduct in the stable condition of the multivibrator and said second transistor being biased to conduct in the unstable condition of the multivibrator; trigger means for causing the multivibrator to switch to its unstable condition; a source of constant current for charging said capacitor through said second transistor; means responsive to the accumulation of a predetermined charge on said capacitor for switching the multivibrator to its stable condition; and means for conTrolling the potential which said capacitor assumes upon the switching of the multivibrator to its unstable condition whereby the time interval necessary to charge said capacitor to said predetermined potential and thus the width of the output pulse may be linearly controlled.

Claim 6

A linear monostable multivibrator comprising: a capacitor; first and second transistors having base, emitter, and collector electrodes, the collector electrode of said first transistor being connected to the base electrode of said second transistor through a resistor network, the collector electrode of said second transistor being connected through said capacitor to the base electrode of said first transistor, said first transistor being biased to conduct in the stable condition of the multivibrator and said second transistor being biased to conduct in the unstable condition of the multivibrator; trigger means for causing the multivibrator to switch to its unstable condition; a source of constant current for charging said capacitor through said second transistor; means responsive to the accumulation of a predetermined charge on said capacitor for switching the multivibrator to its stable condition; and means for conTrolling the potential which said capacitor assumes upon the switching of the multivibrator to its unstable condition whereby the time interval necessary to charge said capacitor to said predetermined potential and thus the width of the output pulse may be linearly controlled.

Claim 7

The linear monostable multivibrator of claim 3 wherein said charge responsive means includes a third transistor having base, emitter, and collector electrodes, the collector electrode of said second transistor being connected to the base electrode of said first transistor through the base-emitter junction of said third transistor.