Accession Number : ADD003602

Title :   Voltage Ramp Temperature Controller.

Descriptive Note : Patent,


Personal Author(s) : Mikonis,Paul

Report Date : 26 Oct 1976

Pagination or Media Count : 5

Abstract : A temperature control circuitry for use in detecting the temperature of a device and providing a programming voltage output for controlling a heating apparatus to vary the temperature of the device is described. The circuitry utilizes a thermocouple as a sensing element in conjunction with a sweep voltage generator and is capable of controlling the time required to heat the device, depending on its material, to a specific temperature over a wide range of temperature values. This is accomplished by superimposition of the thermocouple voltage of the device on a linear ramp voltage generated by the sweep generator. The error signal produced is further processed to control the output of power supplied to heating elements in order that a linear temperature rise or fall of the heated device results over a predetermined elapsed time.

Descriptors :   *Patents, *Temperature control, *Operational amplifiers, Power supplies, Voltage regulators, Thermocouples, Sweep generators, Circuits, Errors

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE