Patent ID: 6087862
Filing Date: 2000-07-11
Classification: H03K

Abstract:
A switching device comprising:a power MOSFET, said MOSFET having a source, a drain and a gate, said drain being coupled to a first main terminal of said switching device, said source being coupled to a second main terminal of said switching device comprising; andpower supply circuitry for driving said gate, said power supply circuitry comprising a storage capacitor, an output of said power supply circuitry being coupled to said gate, a control terminal of said switching device being coupled through a first diode to said storage capacitor, said drain being coupled through a second diode to said storage capacitor, said first diode being oriented so as to allow current to flow from said control terminal through said first diode to said storage capacitor, said second diode being oriented so as to allow current to flow from said drain through said second diode to said storage capacitor.