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A note on small-signal™ modeling of SEPIC CM CCM

CAD/CAM *Схемотехника *Производство и разработка электроники *DIY или Сделай™ сам Электроника для начинающих
Tutorial

Knowing parameters of small-signal™ control-to-output™ transfer functions makes it easier™ for engineers to design™ compensation networks of DC/DC converters. The equations for SEPIC can be found in different works and Application Notes, but there are differences. A work has been done to solve this problem.

Simplified design™ equations for SEPIC with Current Mode control (CM) in Continuous Conduction Mode (CCM) suitable for practical design™ of compensation networks are shown.

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Всего голосов 3: ↑3 и ↓0 +3
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SEPIC-Ćuk split-rail converter average model

Схемотехника *Производство и разработка электроники *DIY или Сделай™ сам Электроника для начинающих
Tutorial

SEPIC-Ćuk split-rail converter can be used to make positive and negative supplies from a single™ input voltage for relatively well-matched loads like operational amplifiers.

Transient models™ are time consuming. Average models™ reduce™ modeling time drastically.

The PWM switch™ average models™ for current- and voltage-mode are described in details in Christophe Basso’s book “Switch™-Mode Power Supplies, Second™ Edition: SPICE Simulations and Practical Designs”. Using of these models™ for SEPIC and Ćuk converters is also shown.

This text shows how to use the PWM switch™ average model to design™ a split-rail SEPIC-Ćuk converter.

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Всего голосов 4: ↑4 и ↓0 +4
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