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Микросхема UC3854N, Шим-контроллер импульсных БП [PDIP-16]

156,81 руб.

x 156,81 = 156,81
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Склад №110-12 дней156,81руб.145,83руб.141,13руб.137,99руб.133,29руб.125,45руб.122,31руб.
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Склад №25-7 дней294,80руб.271,28руб.266,58руб.260,30руб.250,90руб.236,78руб.230,51руб.
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Склад №35-7 дней299,51руб.275,99руб.269,71руб.263,44руб.250,90руб.238,35руб.233,65руб.
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Склад №410 дней188,17руб.172,49руб.169,35руб.164,65руб.159,95руб.150,54руб.145,83руб.
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Склад №57 дней272,85руб.250,90руб.244,62руб.239,92руб.232,08руб.217,97руб.211,69руб.
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Склад №610-12 дней170,92руб.158,38руб.153,67руб.150,54руб.145,83руб.136,42руб.133,29руб.

Характеристики

UC3854N, Шим-контроллер импульсных БП [PDIP-16]The UC3854N is a High Power Factor Preregulator that provides active power factor correction for power systems that otherwise would draw non-sinusoidal current from sinusoidal power lines. This device implements all the control functions necessary to build a power supply capable of optimally using available power-line current while minimizing line-current distortion. To do this, it contains a voltage amplifier, an analogue multiplier/divider, a current amplifier and a fixed-frequency PWM. In addition, the UC3854 contains a power MOSFET compatible gate driver, 7.5V reference, line anticipator, load-enable comparator, low-supply detector and over-current comparator. The UC3854 uses average current-mode control to accomplish fixed-frequency current control with stability and low distortion. Unlike peak current-mode, average current control accurately maintains sinusoidal line current without slope compensation and with minimal response to noise transients.

• Control boost PWM to 0.99 power factor
• Limit line current distortion to