| 摘要 |
<p>The overvoltage protection circuit protects a vertically stacked power transistor (Tp). A first zener diode (Z1) is placed across the power transistor, and a second zener diode (Z2) is placed in parallel. The second zener diode has a higher avalanche voltage, and one side of the two transistors are connected together via a logic circuit (L). The logic circuit does not allow current to pass except when one of the inputs is high compared to the other input.</p> |
