High frequency heating device
First Claim
1. A magnetron high frequency device comprises:
- a filtering inductor coupled to a positive end of a direct current power supply and having a first end and a second end;
a central tap transformer having a central tap end, a first end and a second end, said central tap end being connected to said second end of said filtering inductor;
a filtering capacitor having a first end connected to said first end of said central tap transformer and a second end connected to a negative end of said direct current power supply;
a first switch which is connected in series to said second end of said central tap transformer and connected to said negative end of said direct current power supply;
an in-series circuit having a second switch and a second capacitor and coupled to said central tap transformer;
a first capacitor connected to said central tap transformer;
a rectifying device coupled to a secondary winding of said central tap transformer; and
a magnetron coupled to said rectifying device, wherein, said first capacitor, said second capacitor and said central tap transformer forms a resonant circuit; and
wherein said first capacitor is connected in-series with said central tap transformer and is connected in parallel with said first switch.
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Accused Products
Abstract
This invention provides a magnetron high frequency device which includes: a filtering inductor coupled to a positive end of a direct current power supply; a central tap transformer having a central tap end, a first end and a second end; a filtering capacitor; a first switch which is connected in series to the second end of the central tap transformer and connected to a negative end of the direct current power supply; an in-series circuit having a second switch and a second capacitor and coupled to the central tap transformer; a first capacitor connected in-series with the central tap transformer and connected in parallel with the first switch; a rectifying device coupled to a secondary winding of the central tap transformer; and a magnetron coupled to the rectifying device. The first capacitor, the second capacitor and the central tap transformer forms a resonant circuit.
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Citations
11 Claims
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1. A magnetron high frequency device comprises:
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a filtering inductor coupled to a positive end of a direct current power supply and having a first end and a second end;
a central tap transformer having a central tap end, a first end and a second end, said central tap end being connected to said second end of said filtering inductor;
a filtering capacitor having a first end connected to said first end of said central tap transformer and a second end connected to a negative end of said direct current power supply;
a first switch which is connected in series to said second end of said central tap transformer and connected to said negative end of said direct current power supply;
an in-series circuit having a second switch and a second capacitor and coupled to said central tap transformer;
a first capacitor connected to said central tap transformer;
a rectifying device coupled to a secondary winding of said central tap transformer; and
a magnetron coupled to said rectifying device, wherein, said first capacitor, said second capacitor and said central tap transformer forms a resonant circuit; and
wherein said first capacitor is connected in-series with said central tap transformer and is connected in parallel with said first switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification