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    • 1. 发明申请
    • SURGE PROTECTION CIRCUIT
    • 防护电路
    • US20110149444A1
    • 2011-06-23
    • US13059172
    • 2009-08-06
    • Gert-Jan KoolenPeter Hubertus Franciscus DeurenbergWilhelmus Hinderikus Maria Langeslag
    • Gert-Jan KoolenPeter Hubertus Franciscus DeurenbergWilhelmus Hinderikus Maria Langeslag
    • H02H9/04
    • H05B33/089H02H3/22Y02B20/341Y02B20/348
    • A surge protection circuit is disclosed for an electrical Load which may be for instance an LED load which is directly connected to a supply such as mains supply, and comprises a plurality of switches which are distributed across a plurality of semiconductor die. A surge detector detects the start of a spike in the supply, which results from, for example the commencement or interruption of a nearby inductive load, and opens all the switches. By distributing the switches across multiple die the peak voltage across each is reduced relative to using a single die; thereby each die can stay within the absolute maximum voltage capacity. Each die may have its own surge detector; alternatively, a single surge detector may be used which communicates with the switches on each of the die. In an extension the bridge rectifier may be integrated into the circuit distributed across the die. In this embodiment additional inter-die clamping diodes are required to prevent unsafe floating of the edge connections of each die.
    • 公开了用于电负载的电涌保护电路,其可以是例如直接连接到诸如电源的电源的LED负载,并且包括分布在多个半导体管芯上的多个开关。 浪涌检测器检测电源中的尖峰的起始,这是由于例如附近的感性负载的启动或中断而导致的,并且打开所有开关。 通过将开关分布在多个管芯上,相对于使用单个管芯而言,每个管脚上的峰值电压减小; 从而每个管芯可以保持在绝对最大电压容量内。 每个模具可能有自己的浪涌检测器; 或者,可以使用与每个模具上的开关通信的单个浪涌检测器。 在扩展中,桥式整流器可以集成到分布在管芯上的电路中。 在该实施例中,需要额外的管芯间钳位二极管来防止每个管芯的边缘连接件的不安全浮动。
    • 2. 发明授权
    • Surge protection circuit
    • 浪涌保护电路
    • US08593772B2
    • 2013-11-26
    • US13059172
    • 2009-08-06
    • Gert-Jan KoolenPeter Hubertus Franciscus DeurenbergWilhelmus Hinderikus Maria Langeslag
    • Gert-Jan KoolenPeter Hubertus Franciscus DeurenbergWilhelmus Hinderikus Maria Langeslag
    • H02H3/20
    • H05B33/089H02H3/22Y02B20/341Y02B20/348
    • A surge protection circuit is disclosed for an electrical Load which may be for instance an LED load which is directly connected to a supply such as mains supply, and comprises a plurality of switches which are distributed across a plurality of semiconductor die. A surge detector detects the start of a spike in the supply, which results from, for example the commencement or interruption of a nearby inductive load, and opens all the switches. By distributing the switches across multiple die the peak voltage across each is reduced relative to using a single die; thereby each die can stay within the absolute maximum voltage capacity. Each die may have its own surge detector; alternatively, a single surge detector may be used which communicates with the switches on each of the die. In an extension the bridge rectifier may be integrated into the circuit distributed across the die. In this embodiment additional inter-die clamping diodes are required to prevent unsafe floating of the edge connections of each die.
    • 公开了用于电负载的电涌保护电路,其可以是例如直接连接到诸如电源的电源的LED负载,并且包括分布在多个半导体管芯上的多个开关。 浪涌检测器检测电源中的尖峰的起始,这是由于例如附近的感性负载的启动或中断而导致的,并且打开所有开关。 通过将开关分布在多个管芯上,相对于使用单个管芯而言,每个管脚上的峰值电压减小; 从而每个管芯可以保持在绝对最大电压容量内。 每个模具可能有自己的浪涌检测器; 或者,可以使用与每个模具上的开关通信的单个浪涌检测器。 在扩展中,桥式整流器可以集成到分布在管芯上的电路中。 在该实施例中,需要额外的管芯间钳位二极管来防止每个管芯的边缘连接件的不安全浮动。
    • 8. 发明授权
    • Noise reduction in a power converter
    • 电源转换器降噪
    • US07202609B2
    • 2007-04-10
    • US10504140
    • 2003-01-27
    • Wilhelmus Hinderikus Maria LangeslagJoan Wichard Strijker
    • Wilhelmus Hinderikus Maria LangeslagJoan Wichard Strijker
    • H05B41/36
    • H02M3/33507H02M1/44H02M3/3385Y02B70/1433
    • A power converter includes a control device (28) for a switching power converter (10), a switching power converter and a method of controlling a switch in a power converter for reducing audible noise. The power converter includes the control device (28) and at least one switch (26) for regulating the power conversion. The control device (28) includes a timer (45) for monitoring a switching frequency of the switch (26) to indicate when the frequency has dropped to a certain level, and a gate driving circuit (32) connected to the timer and arranged to regulate the switching of the switch in dependence of the indication from the timer, so that the frequency rises above the certain level in order to reduce generation of audible noise.
    • 电力转换器包括用于开关电力转换器(10)的控制装置(28),开关电力转换器和控制功率转换器中用于降低可听见噪声的开关的方法。 功率转换器包括控制装置(28)和用于调节功率转换的至少一个开关(26)。 控制装置(28)包括:定时器(45),用于监视开关(26)的开关频率,以指示频率何时下降到一定水平;以及栅极驱动电路(32),连接到定时器并被布置成 根据来自定时器的指示来调节开关的切换,使得频率上升到高于某一水平,以减少可听见的噪声的产生。