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Electronic ballast is special circuit
From;    Author:Stand originally

1 overview
Current, all sorts of low pressure or ballast of electron of high-pressured discharge lamp are special integrated circuit (ASIC) already had a lot of products to be able to offer an alternative. In low power compact model fluorescent lamp (in parts of an apparatus of CFL) electron ballast, american IR company ever was mixed 1997 rolled out IR51H series part to control 1998 / drive circuit and power MOSFET at same the thick film circuit in enclosing, can reduce component amount apparently, save PCB space. 2000, meaning law semiconductor (ST) company rolls out world head money to will control circuit and power switch compositive the VK05CFL of driver of CFL ballast electron on same chip. Compound transistor and low-pressure MOSFET are combined and the power switch on chip is become by high-pressured NPN, its collector - V of source pole voltageCsAmount to 520V, I of collector electric currentC, rmFor 0.25A, I of electric current of collector peak valueC, peakFor 1.5A, saturation pressing falls VCs, satTypical cost is 1.4V(IC=300mA) . ST company uses VIPowerM3 patent craft to make this kind of new-style parts of an apparatus. VIPowerM3 craft allows switch of NPN/PNP ambipolar transistor, will two-way communication (Diac) , diode and CMOS/DMOS parts of an apparatus compositive go up in same chip, what realized ideal between parameter of parts of an apparatus is eclectic, make thereby maximize of function of parts of an apparatus, and hard usage.
To apply at straight canal fluorescent lamp and ballast of electron of ultraviolet bactericidal lamp, ST company uses VIPowerM3 craft to develop VK06TL electron drive successfully. VK06TL height is compositive control and protective function, the V of switch of among them combination powerCSFor 520V, IC, rmsFor 0.5A, IC, peak) the 6A that amount to ± , VCs, satTypical cost is 1.4V(IC=0.7A) , suit to use the straight valve that makes drive be as high as 60W fluorescent lamp and ultraviolet bactericidal lamp.
The switch speed of parts of an apparatus of the combination in VK06TL power and MOSFET comparative, top job frequency can amount to 200kHz, and common and ambipolar model the working frequency of switch transistor has 50kHz only commonly.

2 internal compositions reach the function that cite a base
VK06TL uses the 16 SO that cite a base model enclose, bring a foot to if the graph is shown 1 times,be arranged.

VK06TL uses advanced VIPowerM3 patent technology, compositive in chip timer of two-way diode, diode, oscillator, warm-up, overheat and birthday eventually (the combined-type switch power that Eol) protection circuit, driver and belt return shunt-wound diode outputs class, if pursue,2 are shown.
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