US 12,763,758 B1 · Ring oscillator circuit

Abstract

The present invention provides a ring oscillator circuit characterized by comprising a ring oscillator that includes a plurality of series-connected logic elements for generating an oscillation signal, and a transmission gate coupled to the signal path of the ring oscillator. When the ring oscillator is in a stopped state, the transmission gate is turned off to block the signal path, thereby reducing the leakage current of the ring oscillator. Compared to conventional technologies, the advantage of the present invention lies in its ability to significantly reduce standby power consumption while offering possibilities for further optimization, such as dynamic control or bypass design, making it suitable for various low-power applications.

Claims11

Dependent claims

A ring oscillator circuit, characterized by comprising:

a ring oscillator comprising at least one NAND gate and a plurality of inverters connected in series for generating an oscillation signal;
and
a transmission gate coupled between the NAND gate and the plurality of inverters, the transmission gate having a first end coupled to a voltage source and a second end coupled to the NAND gate and the plurality of inverters to selectively provide a startup voltage thereto, wherein when the ring oscillator is in a stopped state, the transmission gate is turned off to block the signal path, thereby reducing the leakage current of the ring oscillator.

Dependencies are inferred from the claim text.

Ring oscillator circuit

Life of this patent

Ring oscillator circuit

Life of this patent

Abstract

Claims11