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公开(公告)号：US11095222B2
公开(公告)日：2021-08-17
申请号：US15962910
申请日：2018-04-25
Applicant: MediaTek Inc.
Inventor： Chih-Chen Li , Yen-Hsun Hsu , Tzu-Chi Huang
Abstract: A high efficiency converter is provided. The converter can be used in applications requiring fast transient response under a first loading condition, and high efficiency under a second loading condition. The converter converts one or more input voltages via two or more conversion paths. Each of the two or more conversion paths corresponds to a different loading condition which indicates a magnitude of a load driven by the converter (e.g., heavy or light), and a target transient response of the load (e.g., fast or slow). A conversion path for a heavy or fast loading condition converts an input voltage directly to a target output voltage. A conversion path for a light or slow loading condition includes a two-stage architecture.
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公开(公告)号：US20190080729A1
公开(公告)日：2019-03-14
申请号：US16110936
申请日：2018-08-23
Applicant: MediaTek Inc.
Inventor： Wei-Chung Chen , Tzu-Chi Huang , Kuo-Chun Hsu
Abstract: Voltage regulators and related methods are described. The voltage regulators described in the application may include an operational amplifier, an output transistor, and a signal buffer connected between the operational amplifier and the output transistor. In some embodiments, these voltage regulators are used in connection with memory units. A voltage regulator may be arranged such that the signal amplifier clamps the voltage at the gate of the output transistor to the output voltage when the memory unit is in an idle mode. In this way, when the memory is accessed, the amplitude and duration of output voltage overshoots can be limited, relative to some voltage regulators.
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公开(公告)号：US20190089252A1
公开(公告)日：2019-03-21
申请号：US15962910
申请日：2018-04-25
Applicant: MediaTek Inc.
Inventor： Chih-Chen Li , Yen-Hsun Hsu , Tzu-Chi Huang
Abstract: A high efficiency converter is provided. The converter can be used in applications requiring fast transient response under a first loading condition, and high efficiency under a second loading condition. The converter converts one or more input voltages via two or more conversion paths. Each of the two or more conversion paths corresponds to a different loading condition which indicates a magnitude of a load driven by the converter (e.g., heavy or light), and a target transient response of the load (e.g., fast or slow). A conversion path for a heavy or fast loading condition converts an input voltage directly to a target output voltage. A conversion path for a light or slow loading condition includes a two-stage architecture.
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