| 摘要 |
An oscillator circuit having a 50% duty cycle comprises an oscillating stage and an output stage. The output stage comprises a series arrangement of first and second output transistors of complementary conductivity types. The oscillating stage applies a combination of an oscillating signal and a first DC bias to the gate of the first output transistor. The first DC bias is dependent on the amplitude of the oscillating signal. The oscillator circuit also includes a bias-generating circuit for generating a second DC bias at the gate of the second transistor, so as to adjust the input switching level to the median level of the input signal dependent upon the amplitude of the oscillating signal.
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