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SGS Thomson Microelectronics
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Part No. |
AN1517
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OCR Text |
...up circuit, an internal voltage preregulator, the Bandgap voltage reference and the Bias block that provides current to all the blocks. The Starter gives the start-up currents to the whole device when the input voltage goes high and the dev... |
Description |
DESIGNING WITH L5972D,UP TO 2A HIGH EFFICIENCY DC/DC CONVERTER
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File Size |
212.59K /
18 Page |
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SGS Thomson Microelectronics
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Part No. |
AN628
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OCR Text |
preregulator WITH THE L4981 CONTINUOUS MODE
by Ugo Moriconi
INTRODUCTION
Conventional AC-DC converters usually employ a full wave rectifier bridge with a simple capacitor filter to draw power from the AC line. This "bulk" capacitor mus... |
Description |
DESIGNING A HIGH POWER FACTOR SWITCHING preregulator WITH THE L4981 CONTINUOUS MODE
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File Size |
306.04K /
35 Page |
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ST Microelectronics
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Part No. |
AN667
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OCR Text |
preregulator WITH THE L6560/A TRANSITION MODE I.C.
by G. Comandatore and U. Moriconi
Active power factor correction techniques are going to grow in conversion applications. Market interest (legislation to be considered) is also moving t... |
Description |
DESIGNING A HIGH POWER FACTOR SWITCHING preregulator WITH THE L6560/A TRANSITION MODE I.C.
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File Size |
493.21K /
11 Page |
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SIEMENS[Siemens Semiconductor Group] Infineon SIEMENS AG
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Part No. |
TDA4817 TDA4817G Q67000-A8299 Q67000-A8298
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OCR Text |
...are larger than those used in a preregulator with powerfactor control.
q Higher efficiency:
A preregulator does cause some additional losses, but these are more than compensated for by the cut in losses created by the rectifier configur... |
Description |
PFC IC for High Power Factor and Acti... From old datasheet system Power Factor Controller IC for High Power Factor and Active Harmonic Filtering 0.5 A POWER FACTOR CONTROLLER, PDIP8 Power Factor Controller IC for High Power Factor and Active Harmonic Filtering 功率因数控制器IC,用于高功率因数,有源谐波滤
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File Size |
369.88K /
12 Page |
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it Online |
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