公开(公告)号：US09680448B2

公开(公告)日：2017-06-13

申请号：US14862392

申请日：2015-09-23

Applicant: University of Macau

Inventor： Pui-In Mak ,  Zhicheng Lin ,  Rui Paulo da Silva Martins

IPC: H04B1/16 ,  H03H11/04 ,  H03H11/12 ,  H03H19/00 ,  H03F1/02 ,  H03F3/19 ,  H03F3/45 ,  H03B5/12

CPC classification number: H03H11/0472 ,  H03B5/1237 ,  H03B5/1246 ,  H03B2202/06 ,  H03F1/0205 ,  H03F3/19 ,  H03F3/45076 ,  H03F2200/294 ,  H03F2200/451 ,  H03H11/1291 ,  H03H19/002 ,  H03H19/004 ,  H03H2011/0483 ,  H03H2210/025 ,  H04B1/16 ,  H04B1/1638

Abstract: The present invention discloses a gain-boosted n-path passive-mixer-first receiver. According to another aspect of the present disclosure, a gain-boosted n-path passive-mixer-first receiver is provided. The receiver includes a number n of switch-capacitor (sc) sets, a resistor, and a transconductance amplifier. The sc sets connect in parallel, and the sc sets have a first node and a second node. The resistor connects to the first node. The transconductance amplifier connects to the resistor and the second node.

公开(公告)号：US11201503B2

公开(公告)日：2021-12-14

申请号：US16711465

申请日：2019-12-12

Applicant: University of Macau

Inventor： Zhicong Huang ,  Chi-Seng Lam ,  Pui-In Mak ,  Rui Paulo Da Silva Martins

IPC: H02J7/00 ,  H02J50/12 ,  H02J7/02 ,  H02M7/219 ,  H02M1/08

Abstract: An exemplary embodiment of the present invention is a wireless power transmission circuit that provides power to a load of variable resistance with an alternating current (AC) power source induced at a secondary coil in a secondary side of the circuit by a primary coil in a primary side of the said circuit. The wireless power transmission circuit includes a switch-controlled capacitor (SCC) and a semi-active rectifier (SAR). The SCC connects to the AC power source. The SCC includes a first capacitor connected in parallel with two electrically controllable switches in series. The SAR connects to output of the SCC for rectifying the output of the SCC, wherein the SAR comprises a bridge circuit that includes two electrically controllable switches. A control angle of the SCC and a conduction angle of the SAR are regulated to provide a load impedance that matches the impedance of the coils.

公开(公告)号：US10436726B2

公开(公告)日：2019-10-08

申请号：US14881889

申请日：2015-10-13

Applicant: UNIVERSITY OF MACAU

Inventor： Ka-Meng Lei ,  Pui-In Mak ,  Man-Kay Law ,  Rui Paulo Da Silva Martins

IPC: G01N24/08 ,  G01R33/44 ,  G01R33/30 ,  G01R33/341 ,  G01R33/34 ,  G01R33/36

Abstract: A palm-size portable μNMR relaxometer system for performing multi-step multi-sample chemical/biological assays, comprising a PCB having a CMOS μNMR transceiver and a DMF device integrated thereon. A portable magnet has an inner gap configured to at least partially receive the DMF device. The DMF device comprises a platform of electrodes including a sensing site and receives one or more samples for analysis at an electrode and automatically transports the one or more samples on individual paths sequentially to the sensing site, for performing sensing on each sample sequentially. A Butterfly coil disposed on the PCB and underneath the DMF device and is at least partially received in the inner gap. The Butterfly coil excites the sample at the μNMR sensing site by transducing a magnetic field produced at the sensing site to an electrical signal which is processed by the CMOS μNMR transceiver to produce an analytical signal.

公开(公告)号：US09751083B2

公开(公告)日：2017-09-05

申请号：US14680671

申请日：2015-04-07

Applicant: University of Macau

Inventor： Jie Gao ,  Tianlan Chen ,  Cheng Dong ,  Yanwei Jia ,  Pui-In Mak ,  Mang-I Vai ,  Rui Paulo da Silva Martins

IPC: G01N27/27 ,  B01L3/00 ,  G01N27/447

CPC classification number: B01L3/502792 ,  B01L2200/143 ,  B01L2300/025 ,  B01L2300/0887 ,  B01L2400/0427 ,  G01N27/44704 ,  G01N27/44756 ,  G01N27/44791

Abstract: According to one aspect of the present disclosure, a digital microfluidic system is provided. The digital microfluidic system includes a device, a control electronics, a field programmed gate array (FPGA), and a computer. The device includes a droplet on an electrode array, where the electrode array includes a plurality of electrodes. The control electronics connects to the device and provides an actuation pulse to the electrodes, where the control electronics generates a capacitance-derived frequency signal. The FPGA connects to the control electronics and collects the capacitance-derived frequency signal. The computer connects to the FPGA, the computer uses a frequency of the capacitance-derived frequency signal to calculate a precise droplet position and generates a duration voltage signal.

公开(公告)号：US09356636B1

公开(公告)日：2016-05-31

申请号：US14616085

申请日：2015-02-06

Applicant: UNIVERSITY OF MACAU

Inventor： Pui-In Mak ,  Fujian Lin ,  Rui Paulo Da Silva Martins

IPC: H04B1/10 ,  H04B1/16 ,  H03D7/14 ,  H03F3/193 ,  H04B1/12

CPC classification number: H03D7/1441 ,  H03D7/1466 ,  H03D7/1491 ,  H03D7/165

Abstract: A single-ended-input current-reuse wideband receiver comprising (1) a stacked Radio Frequency to Baseband (RF-to-BB) front-end with an 8-path active mixer realizing RF amplification, harmonic-recombination (HR) down-conversion, and BB filtering in the current domain for better linearity and power efficiency; (2) a feedforward 8-path passive mixer enabling LO-defined input impedance matching without external components, while offering frequency-translated bandpass filtering and noise cancelling; (3) a single-MOS pole-zero lowpass filter (LPF) permitting both RF and BB filtering at low voltage headroom consumption, while easing the tradeoff between the in-/out-of-band linearity; and (4) a BB-only two-stage HR amplifier boosting the 3rd and 5th harmonic rejection ratios (HRR3,5) with low hardware intricacy.

Abstract translation: 一种单端输入电流再利用宽带接收机，包括：（1）堆叠的射频到基带（RF-to-BB）前端，具有8路有源混频器，实现RF放大，谐波重组（HR） 转换和BB滤波，以获得更好的线性和功率效率; （2）前馈8路无源混频器，可实现LO定义的输入阻抗匹配，无需外部元件，同时提供频率转换的带通滤波和噪声消除; （3）一个单MOS极零低通滤波器（LPF），可以在低电压净空消耗下同时进行RF和BB滤波，同时简化带内线性度之间的折衷; 和（4）仅BB级两级HR放大器以低硬件复杂度提升第3和第5谐波抑制比（HRR3,5）。

公开(公告)号：US09237055B2

公开(公告)日：2016-01-12

申请号：US14254318

申请日：2014-04-16

Applicant: UNIVERSITY OF MACAU

Inventor： Zhicheng Lin ,  Pui-In Mak ,  Rui Paulo da Silva Martins

IPC: H04L27/00 ,  H04L27/38 ,  H04B1/12 ,  H04L27/34

CPC classification number: H03H11/04 ,  H03F3/193 ,  H03F3/45183 ,  H03F2200/294 ,  H03H7/38 ,  H03H11/1213 ,  H04B1/1036 ,  H04B1/123 ,  H04B2001/1072 ,  H04L27/3405 ,  H04L27/3809 ,  H04W4/80

Abstract: A unified balun low noise amplifier (LNA) and I/Q mixer is provided as a single-chip design, and includes a passive/active gain-boosted balun-LNA-I/Q-mixer (blixer), a filter section and a buffer amplifier. The filter section includes an IF-noise-shaping transistorized current-mode lowpass filter sharing a common power supply with the blixer, which allows the blixer and lowpass filter to draw a single bias current. The filter section also includes a complex-pole load providing image rejection and channel selection.

Abstract translation: 提供了一个统一的平衡 - 不平衡变压器低噪声放大器（LNA）和I / Q混频器作为单芯片设计，并包括一个无源/主动增益升压平衡 - 不平衡转换器 - LNA-I / Q-混频器（混合器），滤波器部分和 缓冲放大器。 滤波器部分包括一个中频噪声整形晶体管电流模式低通滤波器，与混合器共用一个公共电源，允许混频器和低通滤波器绘制单个偏置电流。 滤波器部分还包括提供镜像抑制和通道选择的复极负载。

公开(公告)号：US11517904B2

公开(公告)日：2022-12-06

申请号：US16416337

申请日：2019-05-20

Applicant: University of Macau

Inventor： Yanwei Jia ,  Liang Wan ,  Cheng Dong ,  Haoran Li ,  Tianlan Chen ,  Pui-In Mak ,  Rui Paulo da Silva Martins

IPC: C12Q1/68 ,  B01L7/00 ,  C12Q1/686 ,  B01L3/00 ,  G01N27/447

Abstract: Provided is a digital microfluidic device for quick polymerase chain reaction. The digital microfluidic device includes an enclosed chamber for holding droplets comprising PCR mixtures. The chamber has an upper layer and a lower layer, which provide a top heater and a bottom heater contained in a thermal electrode respectively to form dual heaters. The lower layer further has an array of electrodes and a dielectric layer, e.g. Norland Optical adhesive 61, coating thereon. Such arrangement of the digital microfluidic device allows quick and homogeneous heating of droplets to lower the heating voltage, shorten the reaction time, and prevent the dielectric layer from breakdown during the thermal cycle.

公开(公告)号：US10756643B2

公开(公告)日：2020-08-25

申请号：US15821862

申请日：2017-11-24

Applicant: University of Macau

Inventor： Zhiyuan Chen ,  Man-Kay Law ,  Pui-In Mak ,  Rui Paulo da Silva Martins

IPC: H01L41/04 ,  H02M7/06 ,  H02M7/217

Abstract: A flipping-capacitor rectifier circuit that enhances an output power of a piezoelectric energy harvester (PEH). The flipping-capacitor rectifier circuit includes a flipping capacitor, a plurality of switches, and an active rectifier. The flipping capacitor is connected in parallel with the PEH and forms at least three reconfiguration phases by turning on one or more of the switches. The active rectifier connects with the flipping capacitor in parallel and rectifies an AC voltage of the PEH. The flipping capacitor flips a voltage across a capacitor of the PEH to enhance the output power of the PEH by extracting power from the capacitor of the PEH.

公开(公告)号：US10016759B2

公开(公告)日：2018-07-10

申请号：US14683316

申请日：2015-04-10

Applicant: University of Macau

Inventor： Cheng Dong ,  Tianlan Chen ,  Jie Gao ,  Yanwei Jia ,  Pui-In Mak ,  Mang-I Vai ,  Rui Paulo da Silva Martins

IPC: B01L3/00 ,  G01N27/447

CPC classification number: B01L3/502784 ,  B01L2200/143 ,  B01L2300/025 ,  B01L2300/0887 ,  B01L2400/0427

Abstract: According to one aspect of the present disclosure, a control-engaged electrode-driving method for droplet actuation is provided. The method includes, a first pulse is provided to a first electrode for kicking off a droplet till a centroid of the droplet reaching a centroid of the first electrode. A second pulse is provided to a second electrode when a leading edge of the droplet reaching the second electrode.

公开(公告)号：US09673781B2

公开(公告)日：2017-06-06

申请号：US14884860

申请日：2015-10-16

Applicant: University of Macau

Inventor： Pui-In Mak ,  Zhicheng Lin ,  Rui Paulo da Silva Martins

IPC: H04B1/00 ,  H04J11/00 ,  H03H11/04 ,  H03H19/00 ,  H03H11/12 ,  H03F1/02 ,  H03F3/19 ,  H03F3/45 ,  H04B1/16 ,  H03B5/12

CPC classification number: H03H11/0472 ,  H03B5/1237 ,  H03B5/1246 ,  H03B2202/06 ,  H03F1/0205 ,  H03F3/19 ,  H03F3/45076 ,  H03F2200/294 ,  H03F2200/451 ,  H03H11/1291 ,  H03H19/002 ,  H03H19/004 ,  H03H2011/0483 ,  H03H2210/025 ,  H04B1/16 ,  H04B1/1638

Abstract: According to another aspect of the present disclosure, a radio-frequency-to-baseband-function-reuse receiver with shared amplifiers for common-mode and differential-mode amplification is provided. The receiver includes two set networks connected in parallel. The set networks includes a first and a second input capacitors, a first and a second output capacitors, a first transconductance amplifier having an input terminal, a second transconductance amplifier having an input terminal, a first switch, and a second switch. The first and the second input capacitors connect to a first node. The first and the second output capacitors connect to a second node. The first transconductance amplifier connects between the first input capacitor and the first output capacitor. The second transconductance amplifier connects between the second input capacitor and the second output capacitor. The first switch connects between the input terminal of the first transconductance amplifier and the second node. The second switch connects between the input terminal of the second transconductance amplifier and the second node.