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Tech Head - The Technology Section
The Work Bench and Soldering Station
Does anyone own a DELL E153FPf lcd/tft monitor ?
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<blockquote data-quote="Vipersan" data-source="post: 781054" data-attributes="member: 325666"><p>A very valid method Llew ...and one I've already persued ..</p><p>Sad to say ..the example cct gived in the ic pdf shows no resistors in these two locations ..</p><p>They show as wired directy from the IC pins to the power FET ..</p><p>The circuit has obviously been adapted to suit the FET thats actually used ..so these resister particularly the feedback one ..that I cannot read is critical ..for reliability</p><p>The resistors in question </p><p>One of them is connected from the IC to the gate of the Power fet ..pin 8 of the chip to FET gate ..</p><p>The other is in the feedback loop and is more critical ...connected between FET drain ..and a .39 ohm /1 Watt resistor to ground .....and pin 6 of the chip.</p><p>Neither is used in the example that comes in the chip pdf.</p><p>rgds</p><p>VS</p></blockquote><p></p>
[QUOTE="Vipersan, post: 781054, member: 325666"] A very valid method Llew ...and one I've already persued .. Sad to say ..the example cct gived in the ic pdf shows no resistors in these two locations .. They show as wired directy from the IC pins to the power FET .. The circuit has obviously been adapted to suit the FET thats actually used ..so these resister particularly the feedback one ..that I cannot read is critical ..for reliability The resistors in question One of them is connected from the IC to the gate of the Power fet ..pin 8 of the chip to FET gate .. The other is in the feedback loop and is more critical ...connected between FET drain ..and a .39 ohm /1 Watt resistor to ground .....and pin 6 of the chip. Neither is used in the example that comes in the chip pdf. rgds VS [/QUOTE]
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Tech Head - The Technology Section
The Work Bench and Soldering Station
Does anyone own a DELL E153FPf lcd/tft monitor ?
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