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公开(公告)号：US20230386525A1
公开(公告)日：2023-11-30
申请号：US18124576
申请日：2023-03-22
Applicant: MEDIATEK INC.
Inventor： Bo-Yun Lin , Fan-Wei Liao , Tai-Ying Jiang , Ko-Ching Su , Chun-Yueh Kuo
Abstract: A semiconductor die includes an on-die power switch and a target device. The on-die power switch includes a plurality of power input nodes, a power output node, and a switch circuit. The power input nodes receive a plurality of operation voltages from a plurality of different power sources, respectively. The power output node outputs a target operation voltage selected from the operation voltages. The switch circuit selectively couples one of the power input nodes to the power output node. The target device operates according to the target operation voltage supplied from the on-die power switch. The on-die power switch and the target device are separate circuit blocks of the semiconductor die.
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公开(公告)号：US11581851B2
公开(公告)日：2023-02-14
申请号：US17525943
申请日：2021-11-14
Applicant: MEDIATEK INC.
Inventor： Fan-Wei Liao
Abstract: A relaxation oscillator includes a resistor-capacitor (RC) circuit, an integration capacitor, a sampling circuit, and a controllable oscillator. The RC circuit performs an RC charging operation to set a first voltage, performs an RC discharging operation to set a second voltage, and performs a reset operation to reset the first voltage to a first reference voltage and reset the second voltage to a second reference voltage. The sampling circuit performs a charge delivery operation to sample a voltage difference between the first voltage and the second voltage, and transfers the voltage difference to the integration capacitor. The controllable oscillator generates an output clock in response to a control input provided by the integration capacitor.
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公开(公告)号：US20220360220A1
公开(公告)日：2022-11-10
申请号：US17525943
申请日：2021-11-14
Applicant: MEDIATEK INC.
Inventor： Fan-Wei Liao
Abstract: A relaxation oscillator includes a resistor-capacitor (RC) circuit, an integration capacitor, a sampling circuit, and a controllable oscillator. The RC circuit performs an RC charging operation to set a first voltage, performs an RC discharging operation to set a second voltage, and performs a reset operation to reset the first voltage to a first reference voltage and reset the second voltage to a second reference voltage. The sampling circuit performs a charge delivery operation to sample a voltage difference between the first voltage and the second voltage, and transfers the voltage difference to the integration capacitor. The controllable oscillator generates an output clock in response to a control input provided by the integration capacitor.
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