公开(公告)号：US11703532B2

公开(公告)日：2023-07-18

申请号：US17495825

申请日：2021-10-07

Applicant: RichWave Technology Corp.

Inventor： Po-Wei Wu ,  Hsiang-Jen Jao ,  Chih-Sheng Chen ,  Tien-Yun Peng

IPC: G01R29/00 ,  G01R29/027

CPC classification number: G01R29/0273

Abstract: A device of measuring a duty cycle includes a resistor-capacitor circuit and a control circuit. The resistor-capacitor circuit is used to generate a first voltage when a reference signal is in a first state, and generate a second voltage and a third voltage when the reference signal is in a second state. The control circuit is coupled to the resistor-capacitor circuit, and configured to acquire an ON-time according to the first voltage, the second voltage and the third voltage. The ON-time is a time interval during which the reference signal is in the first state.

公开(公告)号：US20230296655A1

公开(公告)日：2023-09-21

申请号：US18202961

申请日：2023-05-29

Applicant: RichWave Technology Corp.

Inventor： Po-Wei Wu ,  Hsiang-Jen Jao ,  Chih-Sheng Chen ,  Tien-Yun Peng

IPC: G01R29/027

CPC classification number: G01R29/0273

Abstract: A compensation circuit includes a resistor-capacitor circuit and a control circuit. The resistor-capacitor circuit is used to generate a first voltage when a reference signal is in a first state, and generate a second voltage and a third voltage when the reference signal is in a second state. The resistor-capacitor circuit includes a first resistor-capacitor sub-circuit and a second resistor-capacitor sub-circuit. The first resistor-capacitor sub-circuit and the second resistor-capacitor sub-circuit are coupled to the control circuit, and operate simultaneously to compute an ON time of a front end module. The control circuit is coupled to the resistor-capacitor circuit, and is used to acquire the ON time according to the first voltage, the second voltage, and the third voltage, and includes an adjustment circuit used to generate a bias signal according to the ON time, and output the bias signal to the front end module.

公开(公告)号：US11536614B2

公开(公告)日：2022-12-27

申请号：US17246734

申请日：2021-05-03

Applicant: RichWave Technology Corp.

Inventor： Po-Wei Wu ,  Tien-Yun Peng ,  Chih-Sheng Chen

IPC: H03F1/30 ,  H03F3/45 ,  H03F3/04 ,  G01K7/21

Abstract: A temperature detector is used to detect a temperature of a circuit under test, and includes a temperature coefficient component, a multiplier, an impedance component and a node. The temperature coefficient component is arranged in proximity to the circuit under test. A control terminal of the multiplier is coupled to a second terminal of the temperature coefficient component. The impedance component is coupled between the second terminal of the temperature coefficient component and the control terminal of the multiplier, or between a second terminal of the multiplier and a third voltage terminal. The node is formed between the second terminal of the temperature coefficient component and the control terminal of the multiplier. A voltage at the node and an amplified detection current flowing to a first terminal of the multiplier are positively correlated to the temperature of the circuit under test.

公开(公告)号：US20230060339A1

公开(公告)日：2023-03-02

申请号：US17495825

申请日：2021-10-07

Applicant: RichWave Technology Corp.

Inventor： Po-Wei Wu ,  Hsiang-Jen Jao ,  Chih-Sheng Chen ,  Tien-Yun Peng

IPC: G01R29/027

Abstract: A device of measuring a duty cycle includes a resistor-capacitor circuit and a control circuit. The resistor-capacitor circuit is used to generate a first voltage when a reference signal is in a first state, and generate a second voltage and a third voltage when the reference signal is in a second state. The control circuit is coupled to the resistor-capacitor circuit, and configured to acquire an ON-time according to the first voltage, the second voltage and the third voltage. The ON-time is a time interval during which the reference signal is in the first state.

公开(公告)号：US20220307916A1

公开(公告)日：2022-09-29

申请号：US17246734

申请日：2021-05-03

Applicant: RichWave Technology Corp.

Inventor： Po-Wei Wu ,  Tien-Yun Peng ,  Chih-Sheng Chen

IPC: G01K7/21 ,  H03F3/45 ,  H03F1/30

Abstract: A temperature detector is used to detect a temperature of a circuit under test, and includes a temperature coefficient component, a multiplier, an impedance component and a node. The temperature coefficient component is arranged in proximity to the circuit under test. A control terminal of the multiplier is coupled to a second terminal of the temperature coefficient component. The impedance component is coupled between the second terminal of the temperature coefficient component and the control terminal of the multiplier, or between a second terminal of the multiplier and a third voltage terminal. The node is formed between the second terminal of the temperature coefficient component and the control terminal of the multiplier. A voltage at the node and an amplified detection current flowing to a first terminal of the multiplier are positively correlated to the temperature of the circuit under test.