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Patent Agency Ranking1.发明申请A DRIVE CIRCUIT FOR A FLASH TUBE AND A METHOD FOR CONTROLLING THE DRIVE CIRCUIT 审中-公开一种用于闪光灯管的驱动电路和一种用于控制驱动电路的方法
公开(公告)号：WO2018048341A1
公开(公告)日：2018-03-15
申请号：PCT/SE2017/050879
申请日：2017-09-05
Applicant: PROFOTO AB
Inventor： SVENSSON, Johnny , GRUBBSTRÖM, Carl Johan
Abstract: The invention discloses a drive circuit and a method for controlling a drive circuit for a flash tube. The drive circuit comprises a capacitor and a first inductor switch group comprising a first inductor and at least one first switch connected in series with each other. The first inductor switch group is configured to be connected in series with the flash tube and the capacitor. The drive unit further comprises at least a second inductor switch group comprising a second inductor and at least one second switch connected in series with each other and configured to be connected in series with the flash tube and the capacitor, and in parallel with the first inductor switch group. The method further comprises the steps of receiving input parameters related to a desired flash characteristics, and controlling the first and second switches separately based on the received input parameters to obtain the desired flash characteristics.
Abstract translation: 本发明公开了一种用于控制闪光管的驱动电路的驱动电路和方法。 该驱动电路包括电容器和第一电感器开关组，该第一电感器开关组包括彼此串联连接的第一电感器和至少一个第一开关。 第一电感器开关组被配置为与闪光管和电容器串联连接。 所述驱动单元还包括至少第二电感器开关组，所述第二电感器开关组包括彼此串联连接并且被配置为与所述闪光管和所述电容器串联连接并且与所述第一电感器并联的第二电感器和至少一个第二开关 开关组。 该方法还包括以下步骤：接收与期望的闪光特性有关的输入参数，并且基于接收到的输入参数分别控制第一和第二开关以获得期望的闪光特性。
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公开(公告)号：WO2018048340A1
公开(公告)日：2018-03-15
申请号：PCT/SE2017/050878
申请日：2017-09-05
Applicant: PROFOTO AB
Inventor： SVENSSON, Johnny , GRUBBSTRÖM, Carl Johan
Abstract: The invention discloses a method for determining a starting time for a flash emitted from a flash tube (1 ) of a flash apparatus (200). The flash apparatus (200) comprises a triggering circuit (10), and a drive circuit (20). The method comprises the steps of measuring an electric current through and/or a voltage across an electrical component (3) of the drive circuit (20), and determining the starting time for the flash based on the measured electric current and/or voltage.
Abstract translation: 本发明公开了一种用于确定从闪光设备（200）的闪光管（1）发射的闪光的开始时间的方法。 闪光装置（200）包括触发电路（10）和驱动电路（20）。 该方法包括以下步骤：测量通过驱动电路（20）的电气部件（3）的电流和/或电压;以及基于测量的电流和/或电压确定闪光的起始时间。
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公开(公告)号：EP3510445A1
公开(公告)日：2019-07-17
申请号：EP17849200.5
申请日：2017-09-05
Applicant: Profoto AB
Inventor： SVENSSON, Johnny , GRUBBSTRÖM, Carl Johan
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公开(公告)号：EP3510841A1
公开(公告)日：2019-07-17
申请号：EP17849201.3
申请日：2017-09-05
Applicant: Profoto AB
Inventor： SVENSSON, Johnny , GRUBBSTRÖM, Carl Johan
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公开(公告)号：EP3266081A1
公开(公告)日：2018-01-10
申请号：EP16759211.2
申请日：2016-02-25
Applicant: Profoto AB
Inventor： FALK, Anton , CARLSSON, Ulf , GRUBBSTRÖM, Carl Johan
CPC classification number: G03B15/05 , G03B2215/0575 , G03B2215/0578 , H01J1/30 , H01J11/28 , H01J61/0672 , H01J61/547 , H01J61/90 , H01T1/22 , H01T1/24 , H05B41/32
Abstract: Flash tubes for photographic use, in particular a flash tube is adapted to provide a light output adapted to FP-sync, Flat Peak. The flash tube includes a length of glass tubing enclosing a gas for use in the flash tube, a cathode inside a first end part of glass tubing and an anode inside a second end part of glass tubing. The cathode includes an element that helps to ionize the gas that is wound around the cathode, such that a spark stream starts from the upper part of the cathode and is prevented from spreading down wards on the cathode and changing the arc length during the light output adapted to FP-sync.
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