Adaptive timing temperature control circuit

Claim 2

An adaptive timing temperature control circuit to control output to output means, comprising in combination, power source means, constant current generator means adapted to provide a constant current output at various current magnitudes, means connecting said constant current generator means to said power source means to provide power for said constant current generator means first switch means having a first and a second state, first capacitor means, means connecting said first switch means and said first capacitor means to change the charge on said first capacitor means with a first magnitude of constant current from said constant current generator means when said first switch means is in said first state, sensor means connected to said first capacitor means to produce an output when said first switch means is in said first state until the change in charge on said first capacitor means exceeds a predetermined value, means connecting said sensor means to the output means to control output thereto in accordance with the output of said sensor means, second capacitor means for storing a charge, means connected to said second capacitor means for discharging said second capacitor means upon termination of the previous output of said sensor means, means connecting said second capacitor means to said power source means to change the charge on said second capacitor means with said change in charge in said second capacitor means being in relation to the duration since the previous output of said sensor means, and means connecting said second capacitor means to said constant current generator means to provide a second current magnitude of said constant current generator means to said first capacitor means to vary the time required for said first capacitor means to have a change in charge exceeding said predetermined value whereby the duration of the output to the output means is varied in accordance with the elapsed time since the previous output thereto.

Claim 3

An adaptive timing temperature control circuit to control output to output means, comprising in combination, power source means, constant current generator means adapted to provide a constant current output at various current magnitudes, means connecting said constant current generator means to said power source means to provide power for said constant current generator means, first switch means having a first and a second state, first capacitor means, means connecting said first switch means in series with said first capacitor means and said constant current generator means to change the charge on said first capacitor means with a first magnitude of constant current from said constant current generator means when said first switch means is in said first state, Schmitt trigger means having an input and an output, means connecting said Schmitt trigger means to said power source means to provide power to said Schmitt trigger means, second switch means having energizing means, means connecting said energizing means in the output circuit of said Schmitt trigger means, means connecting said second switch means between said power source means and the output means to establish output thereto during output of said Schmitt trigger means, means connecting said input of said Schmitt trigger means to said first capacitor means to energize said second switch means when said first switch means is in said first state until the change in charge on said first capacitor means exceeds a predetermined value, second capacitor means for storing charge, means connected to said second capacItor means for discharging said second capacitor means upon termination of said second switch means being energized, means connecting said second capacitor means to said Schmitt trigger means to change the charge on said second capacitor means with said change in charge in said second capacitor means being in relation to the duration since the previous energizing of said second switch means, and means connecting the output of said second capacitor means to said constant current generator means to provide a second current magnitude of said constant generator means to said first capacitor means to vary the time required for said first capacitor means to have a change in charge exceeding said predetermined value whereby the duration of the output to the output means is varied in accordance with the elapsed time since the previous output thereto.

Claim 4

An adaptive timing temperature control circuit to control output to output means, comprising in combination, power source means, constant current generator means adapted to provide a constant current output at various current magnitudes, means connecting said constant current generator means to said power source means to provide power for said constant current generator means, first switch means having a first and a second state, first capacitor means, means connecting said first switch means in series with said first capacitor means and said constant current generator means to change the charge on said first capacitor means with a first magnitude of constant current from said constant current generator means when said first switch means is in said first state, Schmitt trigger means having an input and an output, means connecting said Schmitt trigger means to said power source means to provide power to said Schmitt trigger means, second switch means having energizing means, means connecting said energizing means in the output circuit of said Schmitt trigger means, means connecting said second switch means between said power source means and the output means to establish output thereto during output of said Schmitt trigger means, means connecting said input of said Schmitt trigger means to said first capacitor means to energize said second switch means when said first switch means is in said first state until the change in charge on said first capacitor means exceeds a predetermined value, second capacitor means for storing charge, means connected to said second capacItor means for discharging said second capacitor means upon termination of said second switch means being energized, means connecting said second capacitor means to said Schmitt trigger means to change the charge on said second capacitor means with said change in charge in said second capacitor means being in relation to the duration since the previous energizing of said second switch means, and means connecting the output of said second capacitor means to said constant current generator means to provide a second current magnitude of said constant generator means to said first capacitor means to vary the time required for said first capacitor means to have a change in charge exceeding said predetermined value whereby the duration of the output to the output means is varied in accordance with the elapsed time since the previous output thereto.

Claim 5

An adaptive timing temperature control circuit to control output to output means, comprising in combination: power source means, constant current generator means adapted to provide a constant current output at various current magnitudes; means connecting said constant current generator means to said power source means to provide power for said constant current generator means; first switch means having a first and a second state; first capacitor means; means connecting said first switch means and said first capacitor means to change the charge on said first capacitor means with a first magnitude of constant current from said constant current generator means when said first switch means is in said first state; sensor means connected to said first capacitor means to produce an output when said first switch means is in said first state until the change in charge on said first capacitor means exceeds a predetermined value to vary the time of said sensor means output inversely with said magnitude of the current of said constant current generator; means connecting said sensor means to the output means to control output thereto in accordance with the output of said sensor means; second capacitor means for storing charge; means connected to said second capacitor means for discharging said second capacitor means upon termination of the previous output of said sensor means, means connecting said second capacitor means to said power source means to change the charge on said second capacitor means after said second capacitor means has been discharged with the change in charge in said second capacitor means being in relation to the duration since the previous output of said sensor means; and means connecting said second capacitor means to said constant current generator means to vary the current magnitude of said constant current generator means providing a second magnitude of constant current for changing the charge on said first capacitor means in accordance with the change in charge on said second capacitor means whereby the duration of the output to the output means is varied in accordance with the elapsed time since the previous output thereto to compensate for heating of the output means.

Claim 6

An adaptive timing temperature control circuit to control output to output means, comprising in combination: power source means, constant current generator means adapted to provide a constant current output at various current magnitudes; means connecting said constant current generator means to said power source means to provide power for said constant current generator means; first switch means having a first and a second state; first capacitor means; means connecting said first switch means and said first capacitor means to change the charge on said first capacitor means with a first magnitude of constant current from said constant current generator means when said first switch means is in said first state; sensor means connected to said first capacitor means to produce an output when said first switch means is in said first state until the change in charge on said first capacitor means exceeds a predetermined value to vary the time of said sensor means output inversely with said magnitude of the current of said constant current generator; means connecting said sensor means to the output means to control output thereto in accordance with the output of said sensor means; second capacitor means for storing charge; means connected to said second capacitor means for discharging said second capacitor means upon termination of the previous output of said sensor means, means connecting said second capacitor means to said power source means to change the charge on said second capacitor means after said second capacitor means has been discharged with the change in charge in said second capacitor means being in relation to the duration since the previous output of said sensor means; and means connecting said second capacitor means to said constant current generator means to vary the current magnitude of said constant current generator means providing a second magnitude of constant current for changing the charge on said first capacitor means in accordance with the change in charge on said second capacitor means whereby the duration of the output to the output means is varied in accordance with the elapsed time since the previous output thereto to compensate for heating of the output means.

Claim 7

An adaptive timing temperature control circuit to control output to output means, comprising in combination: power source means; constant current generator means adapted to provide a constant current output at various current magnitudes; means connecting said constant current generator means to said power source means to provide power for said constant current generator means; first switch means having a first and a second state; first capacitor means; means connecting said first switch means and said first capacitor means to change the charge on said first capacitor means with a first magnitude of constant current from said constant current generator means when said first switch means is in said first state; sensor means connected to said first capacitor means to produce an output when said first switch means is in said first state until the change in charge on said first capacitor means exceeds a predetermined value to vary the time of said sensor means output inversely with said magnitude of the current output of said constant current generator means; means connecting said sensor means to the output means to control output thereto in accordance with the output of said sensor means; second capacitor means for storing charge; transistor means having an input and an output; means connecting said output of said transistor means across second capacitor means; means connecting said input of said transistor means to said output of said sensor means for discharging said second capacitor means through said transistor means upon termination of the previous output of said sensor means; means connecting said second capacitor means to said power source means to change the charge of said second capacitor means after said second capacitor means has been discharged with the change in charge in said second capacitor means being in relation to the duration since the previous output of said sensor means; and means connecting said second capacitor means to said constant current generator means to provide a second magnitude of constant current of said constant current generator means for changing the charge on said first capacitor means to vary the time required for said first capacitor means to have a change in charge exceeding said predetermined value in accordance with the change in charge on said second capacitor means whereby the duration of the output means is varied in accordance with the elapsed time since the previous output thereto to compensate for heating of the output means.

Claim 8

An adaptive timing temperature control circuit to control output to output means, comprising in combination: power source means; constant current generator means adapted to provide a constant current output at various current magnitudes; means connecting said constant current generator means to said power source means to provide power for said constant current generator means; first switch means having a first and a second state; first capacitor means; means connecting said first switch means and said first capacitor means to change the charge on said first capacitor means with a first magnitude of constant current from said constant current generator means when said first switch means is in said first state; sensor means connected to said first capacitor means to produce an output when said first switch means is in said first state until the change in charge on said first capacitor means exceeds a predetermined value to vary the time of said sensor means output inversely with said magnitude of the current output of said constant current generator means; means connecting said sensor means to the output means to control output thereto in accordance with the output of said sensor means; second capacitor means for storing charge; transistor means having an input and an output; means connecting said output of said transistor means across second capacitor means; means connecting said input of said transistor means to said output of said sensor means for discharging said second capacitor means through said transistor means upon termination of the previous output of said sensor means; means connecting said second capacitor means to said power source means to change the charge of said second capacitor means after said second capacitor means has been discharged with the change in charge in said second capacitor means being in relation to the duration since the previous output of said sensor means; and means connecting said second capacitor means to said constant current generator means to provide a second magnitude of constant current of said constant current generator means for changing the charge on said first capacitor means to vary the time required for said first capacitor means to have a change in charge exceeding said predetermined value in accordance with the change in charge on said second capacitor means whereby the duration of the output means is varied in accordance with the elapsed time since the previous output thereto to compensate for heating of the output means.