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RT3612EB датащи(PDF) 33 Page - Richtek Technology Corporation |
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RT3612EB датащи(HTML) 33 Page - Richtek Technology Corporation |
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33 / 47 page ![]() RT3612EB 33 DS3612EB-02 December 2019 www.richtek.com © Copyright 2019 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. RT3612EB provides a new generation of dual ramp mechanism to enhance performance. Except original ramp to minimize jitter, additional Advanced Ramp is developed to solve loop natural lag due to PCB parasitic inductance and prevent adjacent PWM turn-on. That has current signal meaning and prediction. The transient ring-back can be effectively suppressed. Figure 18 and Figure 19 show the apparent difference between single ramp and dual ramp with PCB parasitic inductance condition. Figure 18. Single Ramp Behavior with PCB Parasitic Inductance Condition Output Voltage Ramp Comp Loading Current ΔIcc Figure 19. Dual Ramp Behavior with PCB Parasitic Inductance Condition Loading Current ΔIcc Output Voltage Ramp Comp |
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