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Avalanche Diode
Jun 14, 2018

Avalanche diodes are transistors that generate high frequency oscillations under applied voltage. The working principle of high frequency oscillation is Luan's working principle: using an avalanche breakdown to inject the carrier into the crystal, because the carrier will take a certain amount of time due to the carrier crossing the wafer, so the current lag behind the voltage and the delay time. If the crossing time is properly controlled, the negative resistance effect will appear in the current and voltage relation, thus producing the negative resistance. High frequency oscillations. It is often applied to oscillating circuits in the microwave field.

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