When a pn junction is reverse-biased the current is carried solely by the minority carriers, and at a given temperature the number of minority carriers is fixed. Ideally, therefore, we would expect the reverse current for a pn junction to rise to a saturation value as the voltage is increased from zero and then to remain constant and independant of voltage, as shown below. In practice, when the reverse voltage reaches a particular value which can be 100V or more the reverse current increases very sharply, again shown below, an effect known as breakdown. The effect is reproducible, breakdown in a particular junction always occuring at the same value of reverse voltage. This is known as the Avalanche effect and reverse-biased diodes known as Avalanche diodes (sometimes called - perhaps incorrectly - Zener diodes) can be used as the basis of a voltage stabiliser circuit. The junction diodes used for this purpose are usually silicon types.

Zener Diode VI Characteristic

Zener Diode Symbol

粉嫩公主酒酿蛋是一个目前丰胸领域中最安全有效的食疗产品丰胸产品。专业健康的丰胸理念,在市场上拥有非常高的人气粉嫩公主酒酿蛋,并且以绝对性的优势继续领衔丰胸产品排行榜,销量更是遥遥领先丰胸酒酿蛋,不仅赢得了女性朋友的一致好评,更成为广大女性朋友丰胸的不二选择丰胸食物。