NCP1207AADAPGEVB ON Semiconductor, NCP1207AADAPGEVB Datasheet
NCP1207AADAPGEVB
Specifications of NCP1207AADAPGEVB
Related parts for NCP1207AADAPGEVB
NCP1207AADAPGEVB Summary of contents
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... AND8127/D Implementing NCP1207 AC−DC Converter with Synchronous Rectifier Prepared by: Petr Lidak ON Semiconductor Introduction The NCP1207 is a controller dedicated for driving the current−mode free running quasi−resonant Flyback offline converter. This converter is designed for consumer products like notebooks, offline battery chargers, consumer electronics (DVD players, set− ...
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Taking into account the absence of a clamping network the suitable reflected primary winding voltage for 800 V rated MOSFET switch is: V flbk + 800 bulk− max * V spike + 800 * 339 * 330 ...
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Since skin effect and eddy currents play a significant role in the Flyback topology at given switching frequency the Litz wire is used. It consists of 4 wires each with diameter 0.12 mm. To reduce the leakage inductance the primary ...
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With regard to TL431 input leakage current, the resistor divider’s current of 500 mA was selected. The resistor R12 then can be calculated as follows: V TL431 2 4.7 kW 500 @ ...
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PCB Layout Proper printed circuit board layout is essential for good operation of the whole converter. It also influences the EMI signature in both conducted and radiated measurements important to ensure good grounding technique and keep all high ...
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Practical Results One of the most important parameters considered during the converter design is the overall power conversion efficiency. For this reason the synchronized output rectifier was utilized. Table 1 lists the measured results for converter working at minimum specified ...
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The following pictures of the basic voltage waveforms demonstrate the operation of the converter at specific conditions. Figure 6 shows in top trace the gate driver voltage and in bottom trace primary switch’s drain voltage at full load. Figure 6. ...
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... Figure 11. Detailed View of the Burst Pulse N. American Technical Support: 800−282−9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 Phone: 81−3−5773−3850 http://onsemi.com 8 ON Semiconductor Website: http://onsemi ...