Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Switching power supply for high frequency heating apparatus










Image Number 16 for United States Patent #5977530.

A switching device is employed in a power supply for driving a magnetron with lower withstand voltage and better controllability. A high frequency heating apparatus comprises a power supply, a leakage transformer connected to the power supply, a first switching device connected in series to a primary coil side of the leakage transformer, a first capacitor, a series circuit of a second capacitor and a second switching device, a driving circuit having an oscillator for driving the first switching device and the second switching device, a rectifier connected to a secondary coil side of the leakage transformer, and a magnetron connected to the rectifier. With this configuration, voltage applied to the first switching device can be clamped, and at the same time, the OFF time can be freely adjustable by the effect of the second capacitor and the second semiconductor switching device.








 
 
  Recently Added Patents
Luminaire
System and method for efficient association of a power outlet and device
Method for processing power headroom and terminal thereof
Reproducible dither-noise injection
Targeted gene deletions for polysaccharide slime formers
Direct converting apparatus, method for controlling the same, and control signal generation device
Compositions and methods for producing isoprene
  Randomly Featured Patents
Fixing
Invasive ablation probe with non-coring distal tip
Apparatus and method for converting hydrostatic energy to electrical energy
Automotive ventilation apparatus and automotive ventilation method
System and method for synchronizing components in a mesh network
Breathing assistance apparatus
Interactive corrective eye surgery system with topography and laser system interface
Olefin expoxidation using an oxorhenium porphyrin complex catalyst and an organic hydroperoxide
Elastomeric laminates containing a solventless elastomeric adhesive composition
Method and apparatus for background processing for PCMCIA card services