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SGS Thomson Microelectronics
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| Part No. |
AN993
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| OCR Text |
...rate in Zero Voltage Switching (ZVS) resonant mode, drammatically reducing the transistor switching losses and the electromagnetic interfere...like in the under voltage conditions). There are two ways to resume normal operation: - the first is... |
| Description |
ELECTRONIC BALLAST WITH PFC USING L6574 AND L6561
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| File Size |
148.52K /
20 Page |
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SGS Thomson Microelectronics
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| Part No. |
AN1439
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| OCR Text |
...been chosen equal to 150V, then ZVS will be achieved only when the converter operates from the 110V mains; however, this value seems to prov...Like in any offline circuit, extreme caution must be used when working with the application board be... |
| Description |
EVAL6565N, 30W AC-DC ADAPTER WITH THE L6565 QUASI-RESONANT PWM CONTROLLER
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| File Size |
163.46K /
10 Page |
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it Online |
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意法半导
STMICROELECTRONICS[STMicroelectronics]
ST Microelectronics
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| Part No. |
L6574 L6574D L6574D013TR
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| OCR Text |
...t pin is inhibited, even though ZVS operation may not be ensured. Timing Section: To set the proper preheat time (tpre=kpre*Cpre) for the bulb, a capacitor is connected to the Cpre pin which is charged with a fixed current. During tpre, the... |
| Description |
CFL/TL BALLAST DRIVER PREHEAT AND DIMMING
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| File Size |
160.57K /
10 Page |
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it Online |
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iWatt Corporation
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| Part No. |
IW2202
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| OCR Text |
...nse cycle timing rising edge (zvs) falling edge (constant ipeak) cycle selection power sense skip figure 3 . conceptual block ...like the decision to turn the transistor o n, the decision to turn the transistor off is controlled... |
| Description |
Digital SMPS Controller
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| File Size |
342.14K /
14 Page |
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it Online |
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