Improved inrush current limiter device and power factor control circuit having the same
一种功率因数控制、浪涌电流的技术,应用在用于限制过电流/过电压的紧急保护电路装置、电路装置、控制/调节系统等方向,能够解决易于损坏、脱落、失效等问题
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[0029] figure 1 The design of the invention is shown schematically, where the main power source 1 or the common ac power source is connected to the PFC circuit 2 via leads. The PFC circuit 2 is connected to a load 3, which may be any load, such as a lamp. The PFC circuit further comprises an inrush current limiter device 4 , which is grounded at one end and which takes information from the load 3 , which is represented by an arrow pointing away from the inrush current limiter device 4 towards the load 3 . figure 2 The inrush current limiter 4 is described in more detail in .
[0030] figure 2The inrush current limiter device 4 of the present invention is schematically shown. The inrush current limiter device 4 comprises an IGBT-based limiter unit 5 having an unrestricted conduction path and a restricted conduction path (not shown in detail), which are alternately coupled via corresponding switches. The IGBT based limiting unit is powered by the IGBT gate supply 6 . The ...
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