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1.发明申请公开(公告)号：US20230123847A1
公开(公告)日：2023-04-20
申请号：US17965647
申请日：2022-10-13
发明人： ZHIQIN ZHAO , MIAO LI , GUANNAN WANG , QIANG LUO
摘要： Handshake controller and handshake control method for one or more charging protocols. For example, a handshake controller for one or more charging protocols includes: a port detection unit connected to a plurality of USB ports and configured to generate a detection signal; a port selection unit configured to receive the detection signal and connected to the plurality of USB ports; an interface unit connected to the port selection unit; and a digital handshake unit connected to the interface unit; wherein the port detection unit is further configured to: determine whether a single USB port of the plurality of USB ports is connected to a load device.
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公开(公告)号：US20230119958A1
公开(公告)日：2023-04-20
申请号：US17948757
申请日：2022-09-20
发明人： Jun Zhou , Yunchao Zhang , Lieyi Fang
IPC分类号： H05B45/14 , H05B45/24 , H05B45/345 , H05B45/3725 , H05B45/00 , H05B45/50 , H05B45/37
摘要： System and method for regulating one or more currents. The system includes a system controller, an inductor, a first resistor, a switch and a first diode. The system controller includes a first controller terminal and a ground terminal, the system controller being configured to output a drive signal at the first controller terminal. The inductor includes a first inductor terminal and a second inductor terminal, the first inductor terminal being coupled to the ground terminal, the second inductor terminal being coupled to one or more light emitting diodes. The first resistor includes a first resistor terminal and a second resistor terminal, the first resistor terminal being coupled to the ground terminal. The switch is configured to receive the drive signal and coupled to the second resistor terminal. The first diode includes a first diode terminal and a second diode terminal and coupled to the first resistor.
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公开(公告)号：US20230070846A1
公开(公告)日：2023-03-09
申请号：US17897848
申请日：2022-08-29
发明人： PENGLIN YANG , LIEYI FANG
摘要： System and method for detecting a power. For example, a system for detecting a power includes: a first signal converter configured to receive a first signal and generate a pulse-width-modulation signal based at least in part on the first signal; a second signal converter configured to receive a second signal and generate a voltage signal based at least in part on the second signal; and a low-pass filter configured to receive the pulse-width-modulation signal and the voltage signal and generate a power detection signal based at least in part on the pulse-width-modulation signal and the voltage signal; wherein: the first signal is either an input current or an input voltage; the second signal is either the input current or the input voltage; and the first signal and the second signal are different.
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4.发明申请公开(公告)号：US20220210880A1
公开(公告)日：2022-06-30
申请号：US17545752
申请日：2021-12-08
发明人： KE LI , ZHOUYAN LI , LIQIANG ZHU
IPC分类号： H05B45/14 , H05B47/165 , H05B45/39 , H05B45/345
摘要： System and method for controlling one or more light emitting diodes. For example, the system includes: a voltage detector configured to receive a rectified voltage associated with a TRIAC dimmer and generated by a rectifying bridge and generate a first sensing signal representing the rectified voltage; a distortion detector configured to receive the first sensing signal, determine whether the rectified voltage is distorted or not based at least in part on the first sensing signal, and generate a distortion detection signal indicating whether the rectified voltage is distorted or not; and a phase detector configured to receive the first sensing signal and generate a phase detection signal indicating a detected phase range within which the TRIAC dimmer is in a conduction state based at least in part on the first sensing signal.
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公开(公告)号：US20220209663A1
公开(公告)日：2022-06-30
申请号：US17555397
申请日：2021-12-18
发明人： FAGANG WANG , QIANG LUO
摘要： Voltage converter and method for converting an input voltage to an output voltage. For example, a voltage converter for converting an input voltage to an output voltage includes: a coil; multiple switches including one or more switches connected to the coil; a modulation signal generator configured to: receive the output voltage and one or more detection signals indicating a magnitude of a coil current flowing through the coil; and generate a first signal and a second signal based at least in part upon the output voltage and the one or more detection signals; and an operation mode controller configured to: receive the input voltage, the output voltage, the first signal, and the second signal; and generate one or more mode signals based at least in part upon the input voltage, the output voltage, the first signal, and the second signal.
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公开(公告)号：US20220190784A1
公开(公告)日：2022-06-16
申请号：US17509019
申请日：2021-10-24
发明人： TINGZHI YUAN , YAOZHANG CHEN , LIEYI FANG
摘要： Systems and methods are provided for amplifying multiple input signals to generate multiple output signals. An example system includes a first channel, a second channel, and a third channel. The first channel is configured to receive one or more first input signals, process information associated with the one or more first input signals and a first ramp signal, and generate one or more first output signals. The second channel is configured to receive one or more second input signals, process information associated with the one or more second input signals and a second ramp signal, and generate one or more second output signals. The first ramp signal corresponds to a first phase. The second ramp signal corresponds to a second phase. The first phase and the second phase are different.
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公开(公告)号：US11316442B2
公开(公告)日：2022-04-26
申请号：US17118815
申请日：2020-12-11
发明人： Senlin Yang , Qiang Luo
摘要： System and method for a power converter. For example, the system includes a first controller; a first transmitter; a first receiver; one or more first wires; one or more second wires; a second controller; a second receiver connected to the first transmitter through the one or more first wires; and a second transmitter connected to the first receiver through the one or more second wires. The first controller is configured to output a first control signal to a first switch to affect a first current flowing through a primary winding of a power converter; and generate a first input signal. The first transmitter is configured to receive the first input signal and generate the first current. The second receiver includes a first coil configured to generate a first magnetic field based at least in part on the first current flowing through the first coil.
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8.发明授权公开(公告)号：US11229099B2
公开(公告)日：2022-01-18
申请号：US17074303
申请日：2020-10-19
发明人： Ke Li , Zhuoyan Li , Liqiang Zhu
IPC分类号： H05B45/39 , H05B45/14 , H05B47/165 , H05B45/345
摘要： System and method for controlling one or more light emitting diodes. For example, the system includes: a voltage detector configured to receive a rectified voltage associated with a TRIAC dimmer and generated by a rectifying bridge and generate a first sensing signal representing the rectified voltage; a distortion detector configured to receive the first sensing signal, determine whether the rectified voltage is distorted or not based at least in part on the first sensing signal, and generate a distortion detection signal indicating whether the rectified voltage is distorted or not; and a phase detector configured to receive the first sensing signal and generate a phase detection signal indicating a detected phase range within which the TRIAC dimmer is in a conduction state based at least in part on the first sensing signal.
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9.发明授权公开(公告)号：US11224105B2
公开(公告)日：2022-01-11
申请号：US16791329
申请日：2020-02-14
发明人： Jiqing Yang , Zhuoyan Li , Liqiang Zhu , Jun Zhou
摘要： System and method for voltage conversion to drive one or more light emitting diodes with at least a TRIAC dimmer. For example, the system includes: a phase detector configured to receive a first rectified voltage generated based at least in part on an AC input voltage processed by at least the TRIAC dimmer, the phase detector being further configured to generate a digital signal representing phase information associated with the first rectified voltage; a voltage generator configured to receive the digital signal and generate a DC voltage based at least in part on the digital signal; and a driver configured to receive the DC voltage and affect, based at least in part on the DC voltage, a current flowing through the one or more light emitting diodes; wherein the current changes with the phase information according to a predetermined function.
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公开(公告)号：US11183996B2
公开(公告)日：2021-11-23
申请号：US16809405
申请日：2020-03-04
发明人： Liqiang Zhu , Jun Zhou
IPC分类号： H05B45/10 , H05B45/14 , H05B45/397 , H03K5/24 , H05B45/395 , H05B45/3575 , G01R19/165
摘要： System and method for controlling one or more light emitting diodes. For example, the system for controlling one or more light emitting diodes includes a current generator configured to generate a first current flowing through one or more light emitting diodes. The one or more light emitting diodes are configured to receive a rectified voltage generated by a rectifying bridge coupled to a TRIAC dimmer. Additionally, the system includes a bleeder configured to receive the rectified voltage, and a controller configured to receive a sensing voltage from the current generator and output a control signal to the bleeder. The sensing voltage indicates a magnitude of the first current.
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