公开(公告)号：US20170110958A1

公开(公告)日：2017-04-20

申请号：US14918163

申请日：2015-10-20

Applicant: QUALCOMM Incorporated

Inventor： Lingyun WANG ,  Yuan-cheng PAN ,  Junmou ZHANG ,  Nan CHEN ,  Mohamed Waleed ALLAM

IPC: H02M1/14 ,  H02M3/156 ,  H02M1/08

CPC classification number: H02M1/14 ,  G06F1/189 ,  G06F1/206 ,  G06F1/26 ,  G06F1/3206 ,  G06F1/3296 ,  H02M1/08 ,  H02M3/156 ,  Y02D10/172

Abstract: An apparatus and a method to adjust a source voltage based on an operating voltage response are provided. The apparatus includes a circuit configured to change state from a first state to a second state comprising receiving an operating voltage from a power source through a power distribution network. The apparatus further includes a sensor configured to measure an operating voltage response to the circuit changing state to receiving the operating voltage. The apparatus further includes a control circuit configured to adjust a source voltage at the power source based on the operating voltage response measured by the sensor. The method includes changing a state to receiving an operating voltage from a power source through a power distribution network, measuring an operating voltage response to the changing state to receiving the operating voltage, and adjusting the source voltage at the power source based on the measured operating voltage response.

公开(公告)号：US20190025135A1

公开(公告)日：2019-01-24

申请号：US15657887

申请日：2017-07-24

Applicant: QUALCOMM Incorporated

Inventor： Junmou ZHANG ,  Guoan ZHONG ,  Nan CHEN

IPC: G01K7/32 ,  G05F1/59

Abstract: Certain aspects of the present disclosure provide apparatus and techniques for sensing a temperature. For example, certain aspects of the present disclosure may provide a temperature sensing circuit. The temperature sensing circuit may include a first current mirror having a first branch coupled to a first transistor, a resistive element coupled between a source of the first transistor and a reference potential, and a second current mirror having a first branch coupled to a second transistor. In certain aspects, a source of the second transistor may be coupled to the reference potential, and a gate of the first transistor may be coupled to a gate of the second transistor. In certain aspects, the temperature sensing circuit may also include an oscillator having an input coupled to a third transistor of the second current mirror.

公开(公告)号：US20170083040A1

公开(公告)日：2017-03-23

申请号：US14863221

申请日：2015-09-23

Applicant: QUALCOMM Incorporated

Inventor： Junmou ZHANG ,  Nan CHEN ,  Guoan ZHONG

IPC: G06F1/08 ,  G06F21/55

CPC classification number: G06F1/08 ,  G06F21/554 ,  G06F2221/034 ,  H04L9/004 ,  H04L9/005

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be used for detecting an incorrect clock frequency. In one example, the apparatus includes a first circuit configured to compare a clock signal period to a delay period. Additionally, in one example, the apparatus includes a second circuit configured to output a first signal. The period of the first signal may be double the clock signal period when the clock signal period is greater than the delay period. The apparatus may, in one example, also include a third circuit configured to output a second signal. The period of the second signal may be greater than double the clock signal period when the clock signal period is greater than the delay period.