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公开(公告)号：US11563375B2
公开(公告)日：2023-01-24
申请号：US17165888
申请日：2021-02-02
发明人： Chia-So Chuang , Kuei-Ju Chiang , Pin-Hsuan Huang
摘要： A method of a DC-to-DC (DC/DC) power converter includes: providing the DC/DC power converter having a switching node and an output sensing node, the switching node is used to be coupled to a first end of an inductive element which is externally connected to the DC/DC power converter, the output sensing node is used to be coupled to a second end of the inductive element, and an output voltage provided by the DC/DC power converter is generated at the second end of the inductive element through the inductive element; and, adjusting a switching frequency employed by the DC-to-DC power converter in response to a specific event that a ripple range of a current flowing through the inductive element reaches or exceeds above a specific range, wherein the specific event is detected by the DC/DC power converter via the switching node and the output sensing node.
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公开(公告)号：US11727865B1
公开(公告)日：2023-08-15
申请号：US17828473
申请日：2022-05-31
发明人： Tsung-Han Yang , Chia-So Chuang , Pin-Hsuan Huang
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2330/028
摘要： A light-emitting diode driver and a display apparatus using the same are provided. The light-emitting diode driver includes a driving module and a plurality of current control modules. The driving module includes a plurality of bias circuits and a plurality of resistive devices, in which any two of the bias circuits are electrically coupled to each other through at least one of the resistive devices. The current control modules are respectively coupled to the bias circuits, and each of the current control modules includes a current control circuit and a slew-rate enhancement circuit. The current control circuit is configured to output a driving current. The slew-rate enhancement circuit is electrically coupled to the current control circuit, so as to output a complementary current.
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公开(公告)号：US20220121308A1
公开(公告)日：2022-04-21
申请号：US17075668
申请日：2020-10-20
发明人： Chia-So Chuang , Pin-Hsuan Huang , Tsung-Han Yang
IPC分类号： G06F3/041 , G06F1/06 , G06F1/3231
摘要： A control chip comprising: at least pin; a control circuit; a clock generation circuit, configured to generate a clock signal; a power providing circuit, configured to provide an always on power; a touch detection circuit, configured to receive the always on power, and configured to detect a touch event via the pin to generate a touch detection signal; a logic circuit, configured to receive the always on power, the clock signal and the touch detection signal, wherein the logic circuit controls the power providing circuit to provide a core power to the control circuit according to the touch detection signal. The control circuit is further configured to set the logic circuit such that the logic circuit can control the touch detection circuit. A related touch detection method is also discloses. Via the control chip and the touch detection method, the circuit area and the power consumption can be decreased.
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公开(公告)号：US20220247309A1
公开(公告)日：2022-08-04
申请号：US17165888
申请日：2021-02-02
发明人： Chia-So Chuang , Kuei-Ju Chiang , Pin-Hsuan Huang
摘要： A method of a DC-to-DC (DC/DC) power converter includes: providing the DC/DC power converter having a switching node and an output sensing node, the switching node is used to be coupled to a first end of an inductive element which is externally connected to the DC/DC power converter, the output sensing node is used to be coupled to a second end of the inductive element, and an output voltage provided by the DC/DC power converter is generated at the second end of the inductive element through the inductive element; and, adjusting a switching frequency employed by the DC-to-DC power converter in response to a specific event that a ripple range of a current flowing through the inductive element reaches or exceeds above a specific range, wherein the specific event is detected by the DC/DC power converter via the switching node and the output sensing node.
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公开(公告)号：US11327598B1
公开(公告)日：2022-05-10
申请号：US17075668
申请日：2020-10-20
发明人： Chia-So Chuang , Pin-Hsuan Huang , Tsung-Han Yang
IPC分类号： G06F3/041 , G06F1/06 , G06F1/3234 , G06F1/3231
摘要： A control chip comprising: at least pin; a control circuit; a clock generation circuit, configured to generate a clock signal; a power providing circuit, configured to provide an always on power; a touch detection circuit, configured to receive the always on power, and configured to detect a touch event via the pin to generate a touch detection signal; a logic circuit, configured to receive the always on power, the clock signal and the touch detection signal, wherein the logic circuit controls the power providing circuit to provide a core power to the control circuit according to the touch detection signal. The control circuit is further configured to set the logic circuit such that the logic circuit can control the touch detection circuit. A related touch detection method is also discloses. Via the control chip and the touch detection method, the circuit area and the power consumption can be decreased.
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