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← TechnologyFor a microcontroller controlled LED display brightness circuit (using PWM), which consequence from exceeding the diode's forward current occurs?
A)Thermal runaway into irreversible damage✓
B)Reduced reverse recovery characteristics appear
C)Increased gate oxide breakdown susceptibility
D)Electromigration within wiring interconnects occur
💡 Explanation
Exceeding forward current on a diode causes increased power dissipation producing significant heat due to its forward voltage; this creates thermal runaway, because increased temperature elevates forward current – resulting in failure. Therefore, thermal runaway, rather than changes to reverse recovery, becomes dominant.
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