Ring oscillator generating pulse signal at constant pulse period

Oscillators – Ring oscillators

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Details

331175, 331185, 331186, H03B 524, H03B 504, H03K 3011

Patent

active

061007684

ABSTRACT:
A ring oscillator has first inverters and second inverters connected in such a manner as to form a loop; the first inverters are powered through a current controller controlling the first inverters in such a manner as to decelerate the logical operation when the power voltage is increased in magnitude; the second inverters are directly powered with the power voltages so that each second inverter accelerates the logical operation when the power voltage is increased in magnitude; and the second inverters cancel the increment of the pulse period introduced by the first inverters due to increase of the power voltage for keeping the pulse period constant.

REFERENCES:
patent: 5250914 (1993-10-01), Kondo

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