An ohmic heater for heating a food product, comprising: -a rectifier (2) for rectifying the supply voltage; - an inverter (3) comprising controlled switches (30); - a pair (4) of electrodes that can be positioned in contact with the food product to be heated, said inverter (3) being operatively interposed between the rectifier (2) and the pair (4) of electrodes; - means (5) for determining an oscillating voltage (X) generated by the rectifier (2); - a system (800) for regulating the closing duration of the switches (30) of the inverter (3) at least as a function of the corresponding voltage (X) generated by the rectifier (2) and determined at a given time instant by the means (5) for determining an oscillating voltage (X).
OHMIC HEATER / Catelli, Roberto; Romei, Stefano; Cova, Paolo; Toscani, Andrea; Soldati, Alessandro; Franceschini, Giovanni. - (2018).
OHMIC HEATER
COVA PAOLO;TOSCANI ANDREA;SOLDATI ALESSANDRO;FRANCESCHINI GIOVANNI
2018-01-01
Abstract
An ohmic heater for heating a food product, comprising: -a rectifier (2) for rectifying the supply voltage; - an inverter (3) comprising controlled switches (30); - a pair (4) of electrodes that can be positioned in contact with the food product to be heated, said inverter (3) being operatively interposed between the rectifier (2) and the pair (4) of electrodes; - means (5) for determining an oscillating voltage (X) generated by the rectifier (2); - a system (800) for regulating the closing duration of the switches (30) of the inverter (3) at least as a function of the corresponding voltage (X) generated by the rectifier (2) and determined at a given time instant by the means (5) for determining an oscillating voltage (X).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
