THERMAL CONTROLLER WITH FUNCTIONS OF PHASE CONTROL AND MONITORING OF PHASE ZERO TRANSIENT

摘要

FIELD: electricity.;SUBSTANCE: thermal controller maintaining a preset load temperature by phase control or monitoring zero transient of voltage supplied to the load, carried out upon measurement and analysis of the load temperature with the help of a heat sensor, comprises a module of supply source synchronisation network, extracting a sync signal from AC voltage; a power module, in which the AC supply source is connected to the primary winding of a transformer, and a supply driver and a component generating an opening symistor pulse are accordingly energised from the secondary winding; a microprocessor generating a signal of phase control or a control signal for zero transient to analyse the load temperature measured by the heat sensor and adjustment of the specified temperature to the specified value; and also a symistor driver sending voltage received from a unit generating an opening voltage pulse as an opening signal to a control electrode of the symistor connected with the load, depending on a phase control signal issued by a microprocessor or a control signal of phase zero transient.;EFFECT: improved accuracy of temperature control.;4 cl, 4 dwg