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公开(公告)号：US12026681B2
公开(公告)日：2024-07-02
申请号：US18330558
申请日：2023-06-07
CPC分类号： G06Q10/20 , G01K3/10 , G01P3/00 , G01R19/0092 , F21V29/60
摘要： The disclosure relates to a life prediction system for a fan of a lamp. The system comprises a fan signal detecting module to detect at least one working parameter of the fan; and a micro control unit to receive the working current signal, the environment temperature signal and the working rotation speed signal of the fan. The detecting module comprises a current detecting unit to detect a working current of the fan and output a working current signal; a temperature detecting unit to detect a working environment temperature of the fan and output an environment temperature signal; and a rotation speed detecting unit to detect and output a working rotation speed signal of the fan. The micro control unit calculates a predicted residual life of the fan based on the received working current signal, the environment temperature signal, the working rotation speed signal, through the life model of the fan.
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公开(公告)号：US11528791B2
公开(公告)日：2022-12-13
申请号：US17287812
申请日：2019-09-19
发明人： Zhu Mao , Min Fang , Zhangji Zhou , Shuyi Qin , Bo Zhang , Fanbin Wang
IPC分类号： H05B45/3725 , H02M5/458
摘要： A driving circuit is provided in this present disclosure, the driving circuit includes a voltage input module, a quick start module and a control module. The voltage input module includes a first input terminal and a second input terminal and is configured to receive an alternating current voltage and convert the alternating current voltage into a direct current voltage. The quick start module is coupled to the voltage input module and configured to receive the direct current voltage and convert the direct current voltage into a startup voltage. The control module is coupled to the quick start module and configured to receive the startup voltage and control a load, wherein the quick start module comprises a first resistor and a second resistor connected in series and is coupled between the first input terminal and the control module.
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公开(公告)号：US11317496B2
公开(公告)日：2022-04-26
申请号：US16495960
申请日：2018-05-21
摘要： Provided is an LED lamp circuit, comprising an LED luminous component circuit, a rectifier circuit, and an output control circuit coupled between the LED luminous component circuit and the rectifier circuit. The LED luminous component circuit comprises at least one light-emitting diode. The rectifier circuit is configured to output a rectified voltage to the LED luminous component circuit. The output control circuit comprises a voltage regulator circuit and a control switch circuit. The voltage regulator circuit comprises a thermosensitive device and a voltage divider connected in series. The thermosensitive device can regulate the control voltage at both ends of the control switch circuit. To protect the LED lamp, the control switch circuit disconnects when the control voltage is less than the threshold voltage of the control switch circuit.
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公开(公告)号：US10959309B2
公开(公告)日：2021-03-23
申请号：US16188611
申请日：2018-11-13
发明人： Tingting Wang , Fanbin Wang , Bo Zhang , Zhu Mao , Shuyi Qin , Qi Long
摘要： An LED lamp protection circuit comprising: a driving circuit, a rectifier circuit coupled with the driving circuit, an LED luminous component circuit coupled with the rectifier circuit, and an arcing protection circuit coupled between the rectifier circuit and the LED luminous component circuit. The arcing protection circuit and the LED luminous component circuit are connected in parallel. When the LED lamp works under a normal condition, the arcing protection circuit is in blocking state. When at least one circuit between the rectifier circuit and the LED luminous component circuit opens, the arcing protection circuit is turned on, the driving circuit and the arcing protection circuit form a loop circuit to extinguish arc.
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公开(公告)号：US10595370B2
公开(公告)日：2020-03-17
申请号：US15958735
申请日：2018-04-20
发明人： Zhu Mao , Bo Zhang , Fanbin Wang , Shuyi Qin
摘要： The present invention discloses an LED lamp adapted to work in a circuit that contains a magnetic ballast. The LED lamp comprises a bridge rectifier, a filter capacitor, an LED light source, a transistor, and a pulse width modulation controller. The bridge rectifier is configured to convert the alternating current supplied by the magnetic ballast into a direct current. The bridge rectifier comprises a first input terminal, a second input terminal, a first output terminal, and a second output terminal, where the first and second input terminals are electrically connected to the magnetic ballast. The filter capacitor is electrically connected to the first and second output terminals of the bridge rectifier. The LED light source is electrically connected to the first and second output terminals of the bridge rectifier. The transistor comprises a drain electrode, a source electrode, and a gate electrode. The drain electrode and source electrode are electrically connected to the first and second output terminals of the bridge rectifier respectively. The pulse width modulation controller is electrically connected to the gate electrode of the transistor, and configured to control the turning on and off of the transistor. The present invention further discloses a driver circuit that will enable an LED light source to function on the power supplied by a magnetic ballast.
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公开(公告)号：US11704630B2
公开(公告)日：2023-07-18
申请号：US16214171
申请日：2018-12-10
CPC分类号： G06Q10/20 , G01K3/10 , G01P3/00 , G01R19/0092 , F21V29/60
摘要： The disclosure relates to a life prediction system for a fan of a lamp. The system comprises a fan signal detecting module to detect at least one working parameter of the fan; and a micro control unit to receive the working current signal, the environment temperature signal and the working rotation speed signal of the fan. The detecting module comprises a current detecting unit to detect a working current of the fan and output a working current signal; a temperature detecting unit to detect a working environment temperature of the fan and output an environment temperature signal; and a rotation speed detecting unit to detect and output a working rotation speed signal of the fan. The micro control unit calculates a predicted residual life of the fan based on the received working current signal, the environment temperature signal, the working rotation speed signal, through the life model of the fan.
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公开(公告)号：US10973101B2
公开(公告)日：2021-04-06
申请号：US16533891
申请日：2019-08-07
发明人： Zhu Mao , Min Fang , Zhangji Zhou , Shuyi Qin , Fanbin Wang
摘要： A single-stage driver for an LED device, configured to be coupled between a power supply and the LED device, comprises: a rectifier, a DC-to-DC converter, a resistor and a controller. The rectifier is configured to be coupled to the power supply and convert an alternating voltage from the power supply into a first direct voltage. The DC-to-DC converter, which comprises at least two switches, is coupled between the rectifier and the LED device and configured to receive the first direct voltage and provide a constant current to the LED device. The resistor is configured to be coupled in series with the LED device. The controller is coupled between the resistor and the at least two switches, and configured to keep the current through the LED device stable around a predetermined current value by controlling the switches based on a voltage across the resistor, wherein all the at least two switches are turned on or off synchronously.
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公开(公告)号：US10591152B2
公开(公告)日：2020-03-17
申请号：US16017701
申请日：2018-06-25
IPC分类号： F21V29/67 , F21V29/503 , F21V29/508 , F21K9/238 , F21V23/04 , F21Y107/30
摘要： The present invention relates to a light emitting diode (LED) lamp, which includes: a base configured to electrically connect with an external power supply; at least one first printed circuit board (PCB), with at least one LED mounted thereon; a driver module, electrically connected to the base and the first PCB, and configured to drive an LED; a heat dissipation module, thermally contacted with the first PCB, and configured to dissipate heat generated from the LED; a connecting device, connected to the heat dissipation module; and a replaceable active cooling module, detachably connected to the connecting device, and configured to generate a cooling fluid for cooling at least one of the PCB and the heat dissipation module.
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公开(公告)号：US20230029021A1
公开(公告)日：2023-01-26
申请号：US17787994
申请日：2020-01-09
IPC分类号： H05B45/10
摘要： The present invention relates to a lighting apparatus driver, comprising: a filter, which is used to filter out noise; a rectifier, which is used to convert an alternating current voltage into a direct current voltage; and a plurality of voltage regulator integrated circuit (IC) modules, which are directly or indirectly connected to the rectifier, wherein each one of the plurality of voltage regulator IC modules is used to connect to a separate lighting apparatus, so that each one of the plurality of voltage regulator IC modules can independently control the electric current inputted into the lighting apparatus connected thereto.
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公开(公告)号：US20210385923A1
公开(公告)日：2021-12-09
申请号：US17287812
申请日：2019-09-19
发明人： Zhu Mao , Min Fang , Zhangji Zhou , Shuyi Qin , Bo Zhang , Fanbin Wang
IPC分类号： H05B45/3725 , H02M5/458
摘要： A driving circuit is provided in this present disclosure, the driving circuit includes a voltage input module, a quick start module and a control module. The voltage input module includes a first input terminal and a second input terminal and is configured to receive an alternating current voltage and convert the alternating current voltage into a direct current voltage. The quick start module is coupled to the voltage input module and configured to receive the direct current voltage and convert the direct current voltage into a startup voltage. The control module is coupled to the quick start module and configured to receive the startup voltage and control a load, wherein the quick start module comprises a first resistor and a second resistor connected in series and is coupled between the first input terminal and the control module.
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