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公开(公告)号：US20160255684A1
公开(公告)日：2016-09-01
申请号：US14631887
申请日：2015-02-26
Applicant: OSRAM GmbH
Inventor： Yongchang Dai , Daxin Lin
CPC classification number: H05B33/0815 , H05B33/0818 , H05B33/0845 , H05B37/02 , Y02B20/347
Abstract: Various embodiments may relate to a drive circuit of an illumination device. The drive circuit has an output terminal connected to a load of the illumination device. The drive circuit includes a power supply, a boost control unit connected to an output terminal of the power supply, a main control unit connected to the boost control unit, and a load current control unit connected between the main control unit and the load, and including a switch unit. The switch unit includes a first sub switch unit, which is configured to switch according to a dimming control signal from the main control unit, and further includes a second sub switch unit connected to the first sub switch unit. The second sub switch unit is configured to be turned on in a situation where the first sub switch unit is turned on so as to turn off the first sub switch unit.
Abstract translation: 各种实施例可以涉及照明装置的驱动电路。 驱动电路具有连接到照明装置的负载的输出端子。 驱动电路包括电源，连接到电源的输出端子的升压控制单元，连接到升压控制单元的主控制单元和连接在主控制单元和负载之间的负载电流控制单元，以及 包括开关单元。 开关单元包括第一副开关单元，其被配置为根据来自主控制单元的调光控制信号进行切换，并且还包括连接到第一子开关单元的第二子开关单元。 第二子开关单元被配置为在第一子开关单元导通的情况下导通，以便关闭第一子开关单元。
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公开(公告)号：US09814107B2
公开(公告)日：2017-11-07
申请号：US14631887
申请日：2015-02-26
Applicant: OSRAM GmbH
Inventor： Yongchang Dai , Daxin Lin
CPC classification number: H05B33/0815 , H05B33/0818 , H05B33/0845 , H05B37/02 , Y02B20/347
Abstract: Various embodiments may relate to a drive circuit of an illumination device. The drive circuit has an output terminal connected to a load of the illumination device. The drive circuit includes a power supply, a boost control unit connected to an output terminal of the power supply, a main control unit connected to the boost control unit, and a load current control unit connected between the main control unit and the load, and including a switch unit. The switch unit includes a first sub switch unit, which is configured to switch according to a dimming control signal from the main control unit, and further includes a second sub switch unit connected to the first sub switch unit. The second sub switch unit is configured to be turned on in a situation where the first sub switch unit is turned on so as to turn off the first sub switch unit.
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公开(公告)号：US20170273151A9
公开(公告)日：2017-09-21
申请号：US14631887
申请日：2015-02-26
Applicant: OSRAM GmbH
Inventor： Yongchang Dai , Daxin Lin
CPC classification number: H05B33/0815 , H05B33/0818 , H05B33/0845 , H05B37/02 , Y02B20/347
Abstract: Various embodiments may relate to a drive circuit of an illumination device. The drive circuit has an output terminal connected to a load of the illumination device. The drive circuit includes a power supply, a boost control unit connected to an output terminal of the power supply, a main control unit connected to the boost control unit, and a load current control unit connected between the main control unit and the load, and including a switch unit. The switch unit includes a first sub switch unit, which is configured to switch according to a dimming control signal from the main control unit, and further includes a second sub switch unit connected to the first sub switch unit. The second sub switch unit is configured to be turned on in a situation where the first sub switch unit is turned on so as to turn off the first sub switch unit.
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