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1. 发明授权

US11837849B2 Control circuit for pulsed control of a light-emitting means 有权
公开(公告)号：US11837849B2
公开(公告)日：2023-12-05
申请号：US17052311
申请日：2019-04-18
申请人： Valeo Schalter und Sensoren GmbH
发明人： Felix Mueller , Juergen Nies , Jochen Schenk , Daniel Stricker-Shaver
IPC分类号： H05B45/30 , H01S5/042 , H05B45/327 , H05B45/3725 , G01S17/931 , H05B45/385
CPC分类号： H01S5/0428 , G01S17/931 , H05B45/327 , H05B45/3725 , H05B45/385
摘要： The invention relates to a control circuit (50) for pulsed control of a light-emitting means (52), in particular an LED or a laser diode (52), having a switched-mode power supply unit (54) with a first switch (64) arranged in a primary circuit of the switched-mode power supply unit (54), wherein the switched-mode power supply unit (54) has a primary-side connector (62) for connection to a supply voltage, a secondary-side connector (67) for supplying the light-emitting means (52) and a switching input (65) for operating the first switch (64), having a storage capacitor (68) arranged between the secondary-side connector (67) and a ground (66), having a second switch (70) arranged in a current path (71) in parallel with the storage capacitor (68), wherein the light-emitting means (52) is positionable in the current path (71), and having a control unit (72) to control the first and the second switch (64, 70), wherein the control unit (72) is designed to operate the first switch (64) in order to induce at least one charge pulse for charging the storage capacitor (68) in the secondary circuit and to operate the second switch (70) in order to discharge the storage capacitor (68) while generating a light pulse (82) via the light-emitting means (52). The invention also relates to a LiDAR-based environmental sensor, in particular a laser scanner, for use in a vehicle, having an abovementioned control circuit (50) and a laser diode (52). The invention further relates to a method for the pulsed control of a light-emitting means (52), in particular an LED or a laser diode (52), comprising the steps of providing a storage capacitor (68) and a current path (71) that is parallel thereto and in which the light-emitting means (52) is arranged, of generating at least one charge pulse for charging the storage capacitor (68), and of discharging the storage capacitor (68) via the light-emitting means (52) while generating a light pulse (82).

2. 发明公开

US20230322153A1 VEHICLE LAMP AND ILLUMINATION METHOD 审中-公开
公开(公告)号：US20230322153A1
公开(公告)日：2023-10-12
申请号：US18335388
申请日：2023-06-15
申请人： Koito Manufacturing Co., Ltd.
发明人： Misako KAMIYA , Sanae OYAMA
IPC分类号： B60Q1/14 , H05B47/17 , H05B45/325 , H05B45/327 , F21S41/675
CPC分类号： B60Q1/1423 , H05B47/17 , H05B45/325 , H05B45/327 , F21S41/675 , F21Y2115/10
摘要： A scanning light source includes a semiconductor light source, and scans an instantaneous illumination spot based on the output light of the semiconductor light source in the horizontal direction of the light distribution. A lighting circuit is capable of providing multi-gradation dimming of the amount of light provided by the semiconductor light source at each scanning position in synchronization with the scanning of the scanning light source. The lighting circuit is switchable between the first mode in which the semiconductor light source is controlled by pulse width modulation with a duty cycle that corresponds to the dimming ratio and the second mode in which the semiconductor light source is turned off over the number of cycles that corresponds to the dimming ratio.

3. 发明公开

US20230371156A1 MULTI-FUNCTION INTELLIGENT LIGHTING DEVICE CONTROL SYSTEM AND CONTROL METHOD THEREOF 审中-公开
公开(公告)号：US20230371156A1
公开(公告)日：2023-11-16
申请号：US17892142
申请日：2022-08-22
申请人： Xiamen PVTECH Co., Ltd.
发明人： FUXING LU , RONGTU LIU , CHUN MING LIU , HAO YE
IPC分类号： H05B47/155 , H05B45/327 , H05B47/165 , H05B47/105 , H05B45/14
CPC分类号： H05B47/155 , H05B45/327 , H05B47/165 , H05B47/105 , H05B45/14
摘要： A multi-function intelligent lighting device control system includes a plurality of lighting devices and an intelligent lighting device controller. The controller includes a detecting module, a main power source module, an intelligent control module and an intelligent dimming module. The detecting module includes a detecting circuit. The first electrode connectors of the main power source module are connected to the detecting circuit and connected to the first electrodes of the lighting devices via the detecting circuit. The common second electrode connector of the main power source module is connected to the second electrodes of the lighting devices and outputs an electricity signal to drive the lighting devices, such that the detecting circuit generates a plurality of detecting signals. The intelligent control module generates a feedback signal to perform the adaptive adjustment function accordingly. The intelligent dimming module receives a dimming signal to adjust the brightness of the lighting devices.

4. 发明公开

US20230319962A1 LOAD CONTROL DEVICE FOR A LIGHT-EMITTING DIODE LIGHT SOURCE 审中-公开
公开(公告)号：US20230319962A1
公开(公告)日：2023-10-05
申请号：US18329859
申请日：2023-06-06
申请人： Lutron Technology Company LLC
发明人： Venkatesh Chitta , Jeffrey S. Hayes , Robert D. Stevens, JR.
IPC分类号： H05B45/38 , H02M3/335 , H05B45/10 , H05B45/50 , H05B45/395 , H05B45/327 , H05B45/345 , H05B45/385 , H05B45/39 , H05B45/37 , H05B44/00 , H02M1/08
CPC分类号： H05B45/38 , H02M3/33507 , H05B45/10 , H05B45/50 , H05B45/395 , H05B45/327 , H05B45/345 , H05B45/385 , H05B45/39 , H05B45/37 , H05B44/00 , H02M3/33571 , H02M3/33569 , H02M1/08 , Y02B70/10 , H05B45/3725
摘要： A method for controlling an amount of power delivered to an electrical load may include controlling an average magnitude of a load current towards a target load current that ranges from a maximum-rated current to a minimum-rated current in a normal mode, and controlling the average magnitude of the load current below the minimum-rated current in a burst mode. The burst mode may include at least one burst-mode period that comprises a first time period associated with an active state and a second time period associated with an inactive state. During the burst mode, the method may include regulating a peak magnitude of the load current towards the minimum-rated current during the active state, and stopping the generation of at least one drive signal during the inactive state to control the average magnitude of the load current to be less than the minimum-rated current.

5. 发明公开

US20230371147A1 LAMP-APPARATUS CIRCUIT AND A LAMP APPARATUS 审中-公开
公开(公告)号：US20230371147A1
公开(公告)日：2023-11-16
申请号：US17875446
申请日：2022-07-28
申请人： DONGGUAN JIASHENG LIGHTING TECHNOLOGY COMPANY LTD
发明人： SHUI SHENG HSU
IPC分类号： H05B45/327 , H05B45/28 , H05B45/325
CPC分类号： H05B45/327 , H05B45/28 , H05B45/325
摘要： The present disclosure relates to the technical field of lighting circuit, and more particularly to a lamp-apparatus circuit and a lamp apparatus. The lamp-apparatus circuit includes a drive module, a dimming module and a switch module for adjusting the current of the output terminal of the drive module, which are electrically connected. The dimming module includes a dimming circuit, a light-emitting circuit and a multi-position control circuit for controlling the dimming circuit to adjust the color temperature of the light-emitting circuit, which are electrically connected. The dimming module as a whole and the color temperature of the light-emitting circuit can be adjusted simply in operation. The color temperature adjustment means of the lamp apparatus are more diverse and more convenient, and the control circuit is a multi-position control circuit, which improves the flexibility of the color temperature adjustment of the lamp apparatus.

6. 发明公开

US20230247738A1 LOAD CONTROL DEVICE FOR A LIGHT-EMITTING DIODE LIGHT SOURCE 审中-公开
公开(公告)号：US20230247738A1
公开(公告)日：2023-08-03
申请号：US18296407
申请日：2023-04-06
申请人： Lutron Technology Company LLC
发明人： Robert D. Stevens, Jr. , Matthew R. Zartman
IPC分类号： H05B45/10 , H05B45/14 , H05B45/395 , H05B47/16 , H05B45/327 , H05B45/3725 , H05B45/375 , H05B45/38 , H05B45/39
CPC分类号： H05B45/10 , H05B45/14 , H05B45/395 , H05B47/16 , H05B45/327 , H05B45/3725 , H05B45/375 , H05B45/38 , H05B45/39 , H05B47/19
摘要： A load control device for an electrical load is configured to operate in a normal mode and a burst mode to adjust the amount of power delivered to the electrical load. The load control device comprises a control circuit that operates in the normal mode to regulate an average magnitude of a load current conducted through the load between a maximum rated current and a minimum rated current. During the normal mode, the control circuit controls the operating period of a load regulation circuit between a high-end operating period and a low-end operating period. The control circuit operates in the burst mode to regulate the average magnitude of the load current below the minimum rated current. During the burst mode, the control circuit adjusts the low-end operating period to be less than or equal to a minimum on time of the load regulation circuit.

7. 发明授权

US11653427B2 Load control device for a light-emitting diode light source 有权
公开(公告)号：US11653427B2
公开(公告)日：2023-05-16
申请号：US17394073
申请日：2021-08-04
申请人： Lutron Technology Company LLC
发明人： Robert D. Stevens, Jr. , Matthew R. Zartman
IPC分类号： H05B45/10 , H05B45/14 , H05B45/395 , H05B47/16 , H05B45/327 , H05B45/3725 , H05B45/375 , H05B45/38 , H05B45/39 , H05B47/19
CPC分类号： H05B45/10 , H05B45/14 , H05B45/327 , H05B45/375 , H05B45/3725 , H05B45/38 , H05B45/39 , H05B45/395 , H05B47/16 , H05B47/19
摘要： A load control device for an electrical load is configured to operate in a normal mode and a burst mode to adjust the amount of power delivered to the electrical load. The load control device comprises a control circuit that operates in the normal mode to regulate an average magnitude of a load current conducted through the load between a maximum rated current and a minimum rated current. During the normal mode, the control circuit controls the operating period of a load regulation circuit between a high-end operating period and a low-end operating period. The control circuit operates in the burst mode to regulate the average magnitude of the load current below the minimum rated current. During the burst mode, the control circuit adjusts the low-end operating period to be less than or equal to a minimum on time of the load regulation circuit.

8. 发明授权

US11805582B2 Method for controlling lamp circuit based on temperature and amplified current and lamp circuit applying the same 有权
公开(公告)号：US11805582B2
公开(公告)日：2023-10-31
申请号：US17813306
申请日：2022-07-18
申请人： HYUNDAI MOBIS CO., LTD.
发明人： Won Seok Chae
IPC分类号： H05B45/18 , H05B45/345 , H05B45/327
CPC分类号： H05B45/18 , H05B45/327 , H05B45/345
摘要： A lamp circuit including a light emitting circuit and a light emission control circuit that controls the light emitting circuit. The light emitting circuit includes a thermistor and a light emitting device, and the light emission control circuit comprised a constant current circuit, dimming control circuit, voltage divider having a first resistor and a second resistor, and a current amplification circuit. The current amplification circuit amplifies a current of the thermistor, and the voltage divider divides a first voltage to a first node between the first resistor and the second resistor based on the amplified current. The dimming control circuit controls an output current of the constant current circuit based on the first voltage, and the constant current circuit outputs a current to the light emitting device based on the control of the dimming control circuit.

9. 发明授权

US11711875B2 Load control device for a light-emitting diode light source 有权
公开(公告)号：US11711875B2
公开(公告)日：2023-07-25
申请号：US17728609
申请日：2022-04-25
申请人： Lutron Technology Company LLC
发明人： Venkatesh Chitta , Jeffrey S. Hayes , Robert D. Stevens, Jr.
IPC分类号： H05B45/38 , H02M3/335 , H05B45/10 , H05B45/50 , H05B45/395 , H05B45/327 , H05B45/345 , H05B45/385 , H05B45/39 , H05B45/37 , H05B44/00 , H02M1/08 , H05B45/3725 , H05B45/375 , H02M1/00 , H02M3/00
CPC分类号： H05B45/38 , H02M1/08 , H02M3/33507 , H02M3/33569 , H02M3/33571 , H05B44/00 , H05B45/10 , H05B45/327 , H05B45/345 , H05B45/37 , H05B45/385 , H05B45/39 , H05B45/395 , H05B45/50 , H02M1/0009 , H02M1/0035 , H02M1/0058 , H02M3/01 , H05B45/375 , H05B45/3725 , Y02B70/10
摘要： A method for controlling an amount of power delivered to an electrical load may include controlling an average magnitude of a load current towards a target load current that ranges from a maximum-rated current to a minimum-rated current in a normal mode, and controlling the average magnitude of the load current below the minimum-rated current in a burst mode. The burst mode may include at least one burst-mode period that comprises a first time period associated with an active state and a second time period associated with an inactive state. During the burst mode, the method may include regulating a peak magnitude of the load current towards the minimum-rated current during the active state, and stopping the generation of at least one drive signal during the inactive state to control the average magnitude of the load current to be less than the minimum-rated current.

10. 发明授权

US11678416B2 Load control device for a light-emitting diode light source having different operating modes 有权
公开(公告)号：US11678416B2
公开(公告)日：2023-06-13
申请号：US17705823
申请日：2022-03-28
申请人： Lutron Technology Company LLC
发明人： Steven J. Kober
IPC分类号： H05B45/10 , H05B45/14 , H05B45/30 , H05B45/327 , H05B45/382 , H05B45/39 , H05B45/395 , H05B45/37
CPC分类号： H05B45/327 , H05B45/10 , H05B45/37 , H05B45/382 , H05B45/39 , H05B45/395 , H05B45/14
摘要： A load control device for regulating an average magnitude of a load current conducted through an electrical load may operate in different modes. The load control device may comprise a control circuit configured to activate an inverter circuit during an active state period and deactivate the inverter circuit during an inactive state period. In one mode, the control circuit may adjust the average magnitude of the load current by adjusting the inactive state period while keeping the active state period constant. In another mode, the control circuit may adjust the average magnitude of the load current by adjusting the active state period while keeping the inactive state period constant. In yet another mode, the control circuit may keep a duty cycle of the inverter circuit constant and regulate the average magnitude of the load current by adjusting a target load current conducted through the electrical load.

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