Patent
Temperature compensation control
TLDR
In this paper, a temperature compensation system using forward biased pn semiconductor junctions as temperature sensing elements to compensate for the rate of heat loss or gain by controlling the temperature of a fluid heat exchange medium.Abstract:
A temperature compensation system using forward biased pn semiconductor junctions as temperature sensing elements to compensate for the rate of heat loss or gain by controlling the temperature of a fluid heat exchange medium. A differential amplifier is driven by changes in the junction voltage drops and controls power to the heating element so as to maintain a controlled relation between the temperature being overcome and the temperature of the heat exchange medium.read more
Citations
More filters
Patent
Method and apparatus for regulating heater cycles to improve fuel efficiency
TL;DR: In this article, an electronic circuit senses a firing signal from a boiler energy value sensor such as a thermostat or pressuretrol, while the circuit senses an energy value of the outflow line at the boiler.
Patent
Boiler cycling controller
TL;DR: In this paper, a system for controlling a number of central heating boilers of large capacity having means for switching-off each boiler when the flow temperature reaches a predetermined maximum, the temperature at which each boiler is switched on again can be automatically varied in dependence upon the outside temperature in such a manner that as the temperature rises the boiler is switch on at progressively lower boiler flow temperatures, thus increasing the length of the boiler cycles.
Patent
Heater control for a motor vehicle
TL;DR: In this paper, the authors describe a heating system for a motor vehicle with temperature sensors for gauging the compartment temperature as well as for measuring the temperature of the effluent hot air.
Patent
Low supply voltage temperature compensated reference voltage generator and method
TL;DR: In this paper, a reference voltage generator uses a conventional forward junction voltage generating device and a conventional thermal generator to generate a thermal voltage to avoid generating any voltage having a magnitude greater than the magnitude of the sum of the forward voltage and the thermal voltage.
Patent
Temperature measuring apparatus
TL;DR: In this paper, a single temperature sensing diode with a constant level of current was used to measure the deviation of the diode from a constant voltage reference in a summing means and the deviation was used as an indication of temperature.
References
More filters
Patent
Temperature measurement having sensor and reference diodes at inputs of regenerative differential amplifier
TL;DR: In this article, a temperature-temperature-sensing system including a temperature sensing network having a linear voltage drop characteristic to provide a differential voltage input signal to an amplifier which is balanced to provide an output voltage when the differential input voltage is zero and a feedback circuit connected to the amplifier input to trigger the amplifier in response to a change in the set output voltage.