Electronic ignition circuit for oil burners

Abstract

The present invention relates to an electronic ignition circuit for oil burners, in particular a high voltage high frequency ignition circuit, said circuit comprising an oscillator and a high frequency high voltage transformer wound on a core. The core on which the high frequency transformer is wound forms a substantially closed magnetic path for the magnetic flux generated by the windings of the transformer, when current flows through the windings.

1 - 14 . (Canceled).  
   
   
       15 . An electronic ignition circuit for oil burners, in particular a high voltage high frequency ignition circuit, said circuit comprising an oscillator and a high frequency transformer wound on a core; and wherein the core comprises two parts between which a gap is provided so as to form a substantially closed magnetic path for the magnetic flux generated by the windings of the transformer, when current flows through the windings.  
   
   
       16 . An electronic ignition circuit according to  claim 15 , wherein the core comprises at least one essentially E shaped core and a yoke.  
   
   
       17 . An electronic ignition circuit according to  claim 16 , wherein the yoke comprises a second essentially E shaped core.  
   
   
       18 . An electronic ignition circuit according to  claim 16 , wherein the gap is formed between a central leg defined by the E shaped core and the yoke.  
   
   
       19 . An electronic ignition circuit according to  claim 15 , wherein the core is a ferrite core.  
   
   
       20 . An electronic ignition circuit according to  claim 15 , wherein the oscillator comprises a MOS-FET transistor.  
   
   
       21 . An electronic ignition circuit according to  claim 15 , wherein the core weighs less than 14 g.  
   
   
       22 . An oil burner comprising an electronic ignition circuit, the electronic ignition circuit including an oscillator and a high frequency transformer wound on a core, the core forming a substantially closed magnetic path for the magnetic flux generated by the windings of the transformer when current flows through the windings.  
   
   
       23 . The use, in an electronic ignition circuit for oil burners, of a high frequency transformer comprising a core comprising two parts between which a gap is provided so as to form a substantially closed magnetic path for the magnetic flux, generated by the windings of the transformer, when current flows through the windings.  
   
   
       24 . A high frequency ignition transformer for oil burners, comprising a core comprising two parts between which a gap is provided so as to form a substantially closed magnetic path for the magnetic flux, generated by the windings of the transformer, when current flows through the windings.  
   
   
       25 . A high frequency ignition transformer according to  claim 23 , wherein the core is a ferrite core.  
   
   
       26 . A high frequency transformer according to  claim 23 , wherein the core weighs less than 14 g.