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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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LM339LVDR Datasheet(PDF) 31 Page - Texas Instruments |
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LM339LVDR Datasheet(HTML) 31 Page - Texas Instruments |
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31 / 71 page  7.2.8 Zero Crossing Detector R4 100 NŸ R1 5 NŸ +V R2 5 NŸ VIN R4 20 0Ÿ + ± R5 10 NŸ R3 100 NŸ D1 BAT54 VOUT V1 V2 V3 R1 = R2 = (R5 / 2) RPU 10 NŸ Figure 7-17. Zero Crossing Detector A voltage divider of R4 and R5 establishes a reference voltage V1 at the non-inverting input. By making the series resistance of R1 and R2 equal to R5, the comparator will switch when VIN = 0. Diode D1 insures that V3 clamps near ground. The voltage divider of R2 and R3 then prevents V2 from going below ground. A small amount of hysteresis is setup to ensure rapid output voltage transitions. www.ti.com TL331LV, TL391LV, LM393LV, LM339LV SNOSDA4D – JUNE 2020 – REVISED NOVEMBER 2023 Copyright © 2023 Texas Instruments Incorporated Submit Document Feedback 31 Product Folder Links: TL331LV TL391LV LM393LV LM339LV |
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