| 摘要 |
A fast, low output impedance, low-power clamp circuit for a switched complementary emitter follower includes a current mirror circuit and two transistors. In operation, high current is provided to allow for fast switching when turning off the complementary emitter follower. When the complementary emitter follower has been turned off, the clamp circuit reverts to low-power operation requiring much lower current while maintaining the complementary emitter follower in the off condition.
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