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Application filed by Institutul Politehnic,RofiledCriticalInstitutul Politehnic,Ro
Priority to RO125334ApriorityCriticalpatent/RO96565B1/en
Publication of RO96565A2publicationCriticalpatent/RO96565A2/en
Publication of RO96565B1publicationCriticalpatent/RO96565B1/en
Electric Connection Of Electric Components To Printed Circuits
(AREA)
Control Of Temperature
(AREA)
Abstract
The assembly comprises an aid to automation in the electrical and electronics industries. To maintian a constant controlled temperature, a differential stage consisting of two transistors with four basic disequilibrium voltages, a thermistor and two resistors and potentiometers have a pulsing disc. The one transistor signals to the other and to a thyristor. A supply transformer gives temperature control to within 5 per cent of the set value, and the heating time is only 20 seconds.
RO125334A1986-11-121986-11-12Thermostatic soldering iron
RO96565B1
(en)
Electric radiant heating element for heating a plate, inelectric radiant heating element for heating a plate, in particular a glass-ceramic plate particular a glass-ceramic plate
Central heating and air conditioning electronic temperature regulator - uses pulses generator which periodically supplies wheatstone bridge including thermistor sensor