Device and method for body-bias
First Claim
Patent Images
1. A device, comprising:
- a delay circuit configured to generate an oscillating signal in response to a reference signal, a first bias voltage, and a second bias voltage;
a detection circuit, comprising a frequency detector configured to compare the oscillating signal with the reference signal, in order to generate a detect signal; and
a bias circuit configured to adjust the first bias voltage and the second bias voltage according to the detect signal and a reference voltage,wherein the delay circuit comprises a first-type transistor and a second-type transistor that are configured to introduce a delay to the reference signal to generate the oscillating signal, a bulk terminal of the first-type transistor is configured to receive the first bias voltage, and a bulk terminal of the second-type transistor is configured to receive the second bias voltage.
1 Assignment
0 Petitions
Accused Products
Abstract
A device is disclosed that includes a delay circuit, a detection circuit, and a bias circuit. The delay circuit is configured to generate an oscillating signal in response to a reference signal, a first bias voltage, and a second bias voltage. The detection circuit is configured to compare the oscillating signal with the reference signal, to generate a detect signal. The bias circuit is configured to adjust the first bias voltage and the second bias voltage according to the detect signal and a reference voltage.
-
Citations
20 Claims
-
1. A device, comprising:
-
a delay circuit configured to generate an oscillating signal in response to a reference signal, a first bias voltage, and a second bias voltage; a detection circuit, comprising a frequency detector configured to compare the oscillating signal with the reference signal, in order to generate a detect signal; and a bias circuit configured to adjust the first bias voltage and the second bias voltage according to the detect signal and a reference voltage, wherein the delay circuit comprises a first-type transistor and a second-type transistor that are configured to introduce a delay to the reference signal to generate the oscillating signal, a bulk terminal of the first-type transistor is configured to receive the first bias voltage, and a bulk terminal of the second-type transistor is configured to receive the second bias voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A device comprising:
-
a delay circuit comprising at least one inverter, and configured to introduce a delay to a reference signal through the at least one inverter to generate an oscillating signal, and the delay being adjusted according to a first bias voltage and a second bias voltage; and a bias circuit configured to adjust the first bias voltage and the second bias voltage according to a difference between the reference signal and the oscillating signal, wherein the at least one inverter comprises a first-type transistor and a second-type transistor, a bulk terminal of the first-type transistor is configured to receive the first bias voltage, and a bulk terminal of the second-type transistor is configured to receive the second bias voltage. - View Dependent Claims (13, 14, 15)
-
-
16. A method comprising:
-
generating an oscillating signal, by a delay circuit, according to a reference signal, a first bias voltage, and a second bias voltage, wherein a delay is introduced, by a first-type transistor and a second-type transistor in the delay circuit, to the reference signal to generate the oscillating signal, a bulk terminal of the first-type transistor is configured to receive the first bias voltage, and a bulk terminal of the second-type transistor is configured to receive the second bias voltage; comparing the oscillating signal with the reference signal, by a frequency detector of a detection circuit, to adjust a voltage level of a node of the detection circuit, in order to generate a detect signal in response to the voltage level of the node; and adjusting the first bias voltage and the second bias voltage, by a bias circuit, according to the detect signal and a reference voltage. - View Dependent Claims (17, 18, 19, 20)
-
Specification