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公开(公告)号：US09547224B2
公开(公告)日：2017-01-17
申请号：US14445073
申请日：2014-07-29
发明人： Fu-Shiung Shih , Chi-Jen Chen , Fang-Chieh Lu , Po-Fu Wu , Chun-Jung Hu
CPC分类号： G03B21/16 , G03B21/2086 , H04N9/3144
摘要： A projector includes an apparatus casing, a light source module, a flow generating device, a sensing module, and a power module. The light source module is disposed inside the apparatus casing and includes a light-emitting part and a lampshade surrounding the light-emitting part. The flow generating device can generate an air flow for dissipating heat by the light source module. The sensing module is disposed in the apparatus casing and includes a thermo-sensitive component disposed near the lampshade and located in a flowing path of the air flow. The power module is disposed in the apparatus casing and electrically connected to the light source module and the sensing module. The power module selectively stops powering the light source module according to an electric parameter of the thermo-sensitive component. Thereby, the invention protects the projector from being overheated by use of the thermo-sensitivity of the thermo-sensitive component.
摘要翻译： 投影仪包括装置壳体，光源模块，流量发生装置，感测模块和功率模块。 光源模块设置在设备壳体的内部，并且包括发光部分和围绕发光部分的灯罩。 流动产生装置可以产生用于由光源模块散热的空气流。 感测模块设置在装置壳体中，并且包括设置在灯罩附近并位于空气流的流动路径中的热敏部件。 电源模块设置在设备壳体中并电连接到光源模块和感测模块。 功率模块根据热敏部件的电参数选择性地停止对光源模块供电。 因此，本发明通过使用热敏部件的热敏感来保护投影机不被过热。
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公开(公告)号：US20150077719A1
公开(公告)日：2015-03-19
申请号：US14445073
申请日：2014-07-29
发明人： Fu-Shiung Shih , Chi-Jen Chen , Fang-Chieh Lu , Po-Fu Wu , Chun-Jung Hu
CPC分类号： G03B21/16 , G03B21/2086 , H04N9/3144
摘要： A projector includes an apparatus casing, a light source module, a flow generating device, a sensing module, and a power module. The light source module is disposed inside the apparatus casing and includes a light-emitting part and a lampshade surrounding the light-emitting part. The flow generating device can generate an air flow for dissipating heat by the light source module. The sensing module is disposed in the apparatus casing and includes a thermo-sensitive component disposed near the lampshade and located in a flowing path of the air flow. The power module is disposed in the apparatus casing and electrically connected to the light source module and the sensing module. The power module selectively stops powering the light source module according to an electric parameter of the thermo-sensitive component. Thereby, the invention protects the projector from being overheated by use of the thermo-sensitivity of the thermo-sensitive component.
摘要翻译： 投影仪包括装置壳体，光源模块，流量发生装置，感测模块和功率模块。 光源模块设置在设备壳体内部，并且包括发光部分和围绕发光部分的灯罩。 流动产生装置可以产生用于由光源模块散热的空气流。 感测模块设置在装置壳体中，并且包括设置在灯罩附近并位于空气流的流动路径中的热敏部件。 电源模块设置在设备壳体中并电连接到光源模块和感测模块。 功率模块根据热敏部件的电参数选择性地停止对光源模块供电。 因此，本发明通过使用热敏部件的热敏感来保护投影机不被过热。
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公开(公告)号：US11258995B2
公开(公告)日：2022-02-22
申请号：US16664961
申请日：2019-10-28
申请人： Qisda Corporation
发明人： Chi-Jen Chen , Fang-Chieh Lu , Chun-Hsiao Lin
摘要： A projector and a drive circuit thereof are provided. The projector includes a light source and a drive circuit. The light source includes at least one red light diode, at least one green light diode, at least one first blue light diode and at least one second blue light diode. The drive circuit includes a red light drive circuit, a green light drive circuit, a first blue light drive circuit and a second blue light drive circuit. The green light drive circuit outputs a green light drive signal to the green light diode according to a green light control signal. The second blue light drive circuit outputs a second blue light drive signal to the second blue light diode according to a second blue light control signal. The second blue light control signal and the green light drive signal have synchronous pulse.
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公开(公告)号：US20200249553A1
公开(公告)日：2020-08-06
申请号：US16737921
申请日：2020-01-09
申请人： QISDA CORPORATION
发明人： Chi-Jen Chen , Chih-Hsiang Wu , Kuo-Chun Lee , Szu-Fan Chen
摘要： A projection apparatus includes a solid-state light source module, a high-voltage power source, an image-forming-light generating module, an insulation ring and a projection lens module. The solid-state light source module has a solid-state light source and a first metal casing. The solid-state light source is disposed in the first metal casing. The high-voltage power source is electrically connected to the solid-state light source for providing electrical power to drive the solid-state light source to emit light. The image-forming-light generating module has a second metal casing. The insulation ring is connected to the first metal casing and the second metal casing for insulating the first metal casing from the second metal casing. The projection lens module is connected to the image-forming-light generating module for projecting an image generated by light emitted from the solid-state light source after the light enters the image-forming-light generating module through the insulation ring.
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5.发明授权公开(公告)号：US09668329B2
公开(公告)日：2017-05-30
申请号：US14846837
申请日：2015-09-07
申请人： QISDA CORPORATION
发明人： Chi-Jen Chen , Fang-Chieh Lu , Chuan-Chu Chen , Ching-Ying Tsou
CPC分类号： H05B33/0827 , H05B33/0857
摘要： An electronic device includes a first light module, a second light module, a primary driver, and a first secondary driver. The first light module is used to emit a first light, and the second light module is used to emit a second light. The primary driver has a first control terminal for turning on the first light module during a first duration, and a second control terminal for turning on the second light module during a second duration. The first secondary driver is used to turn on the first light module during the second duration.
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公开(公告)号：US20210204378A1
公开(公告)日：2021-07-01
申请号：US17030413
申请日：2020-09-24
申请人： QISDA CORPORATION
发明人： Tsung-Hsun Wu , Chi-Jen Chen , Yuan-Ting Fang
IPC分类号： H05B47/10
摘要： A light intensity adjustment circuit includes a delay circuit, a switching circuit and a light-emitting circuit. The delay circuit includes a capacitor and is used to receive a first pulse width modulation signal and generate a delay signal according to the first pulse width modulation signal. The switching circuit includes a switching unit and an isolation circuit. The switching unit includes a control terminal coupled to the delay circuit and used to receive the delay signal, and a first terminal used to generate a current according to the delay signal. The isolation circuit is coupled to the first terminal of the switching unit and generate a second pulse width modulation signal according to the current. The light-emitting circuit is used to receive the second pulse width modulation signal and emit light accordingly.
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公开(公告)号：US10658769B1
公开(公告)日：2020-05-19
申请号：US16411150
申请日：2019-05-14
申请人： QISDA CORPORATION
发明人： Chun-Ming Shen , Chi-Jen Chen , Min-Wen Hong
摘要： An electronic device includes a casing, a circuit board, an electronic component and a fixing member. The casing includes a fixing pillar and at least one rib. The rib is connected to a periphery of the fixing pillar. The circuit board includes a through hole. The fixing pillar is disposed in the through hole. The circuit board abuts against a second top surface of the rib. A thickness of the circuit board is smaller than a height between a first top surface of the fixing pillar and the second top surface of the rib. The electronic component includes a first metal member. A first ground end of the first metal member is disposed on the first top surface of the fixing pillar. A gap exists between the first ground end and the circuit board. The fixing member fixes the first ground end to the fixing pillar.
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公开(公告)号：US11215913B2
公开(公告)日：2022-01-04
申请号：US16726325
申请日：2019-12-24
申请人： Qisda Corporation
发明人： Chih-Hsiang Wu , Chi-Jen Chen
摘要： A projector drive circuit includes a first voltage converter, a light source driver, a second voltage converter, and an isolation circuit. The first voltage converter converts a first voltage into a second voltage. The light source driver converts the second voltage into a third voltage. The second voltage converter converts the second voltage into a fourth voltage. The control circuit, coupled to the second voltage converter, receives the fourth voltage and outputs a first control signal. The isolation circuit, coupled to the control circuit and the light source driver, receives the first control signal and generates a second control signal to the light source driver, which controls the light source driver to generate the third voltage and provide the third voltage to a light source according to the second control signal. The isolation circuit electrically isolates the control circuit from the light source driver.
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公开(公告)号：US11076466B2
公开(公告)日：2021-07-27
申请号：US17030413
申请日：2020-09-24
申请人： QISDA CORPORATION
发明人： Tsung-Hsun Wu , Chi-Jen Chen , Yuan-Ting Fang
摘要： A light intensity adjustment circuit includes a delay circuit, a switching circuit and a light-emitting circuit. The delay circuit includes a capacitor and is used to receive a first pulse width modulation signal and generate a delay signal according to the first pulse width modulation signal. The switching circuit includes a switching unit and an isolation circuit. The switching unit includes a control terminal coupled to the delay circuit and used to receive the delay signal, and a first terminal used to generate a current according to the delay signal. The isolation circuit is coupled to the first terminal of the switching unit and generate a second pulse width modulation signal according to the current. The light-emitting circuit is used to receive the second pulse width modulation signal and emit light accordingly.
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公开(公告)号：US11044435B2
公开(公告)日：2021-06-22
申请号：US16429047
申请日：2019-06-02
申请人： QISDA CORPORATION
发明人： Fang-Chieh Lu , Chi-Jen Chen , Chuan-Chu Chen , Ching-Ying Tsou
摘要： A driver circuit includes a first voltage conversion unit, a second voltage conversion unit, a third voltage conversion unit, a light driver and a control circuit. The first voltage conversion unit may convert a first voltage to a second voltage. The second voltage conversion unit may convert the second voltage to a third voltage in a non-electrically isolated manner. The third voltage conversion unit may convert the second voltage to a fourth voltage in a non-electrically isolated manner. The light driver may receive the third voltage and a control signal to generate a control current according to the control signal. The control circuit may receive the fourth voltage and an image signal to generate the control signal according to the image signal.
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