| 摘要 |
PURPOSE: A self oscillator operating in high speed at low voltage is provided, which is irrelevant to the variation of a power supply voltage. CONSTITUTION: The self oscillator includes a reference voltage generator(100), and a voltage-current converter(200) converting a reference voltage provided from the reference voltage generator into a current. A clamp generator(400) outputs a clamping voltage in response to the reference voltage provided from the reference voltage generator. And a ring oscillator(300) outputs an oscillation voltage clamped to a constant voltage using the clamping voltage as the amount of output current from voltage-current converter(200).
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