US PATENT SUBCLASS 257 / 174
.~.~ Rate of rise of current (e.g., dI/dt)

Current as of: June, 1999
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257 /   HD   ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES)

107  DF  REGENERATIVE TYPE SWITCHING DEVICE (E.G., SCR, COMFET, THYRISTOR) {19}
173  DF  .~ Device protection (e.g., from overvoltage) {1}
174.~.~ Rate of rise of current (e.g., dI/dt)

DEFINITION

Classification: 257/174

Rate of rise of current (e.g., dI/dt):

(under subclass 173) Subject matter wherein the parameter for which protection means is provided is the rate of rise of operating current in the device.