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Definition of "Thermal Runaway" |
A conduction that exists when heat causes more electron-hole pairs to be generated, which, in turn, causes more heat and which may eventually cause component destruction [in diodes and transistors]. Several semiconductor characteristics are a function of temperature, power loses increase with increasing temperature causing more and more heat to build within the device until the junction temperature is exceeded. / problem that can develop in an amplifier when an increase in temperature causes an increase in collector current. The increase in collector current causes a further increase in temperature and so on. Unless the circuit is designed to prevent this condition, the device can be driven into saturation. |
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