Hardware Design of Isolated Flying Capacitor Multilevel Converters

Isolated flying capacitor multilevel converters have select components that consider a wide variety of operations. This article discusses three hardware prototypes created using identical components to test the theory of operation. To catch up on this series on Isolated Flying Capacitor Multilevel Converters, follow these links: Isolated Flying Capacitor Multilevel Converter Basics Isolated Flying Capacitor … Read more

Maximizing Class E Dual-frequency Resonant Boost Converter Efficiency

Discover how class E dual-frequency resonant boost converters can improve your power system efficiency. Explore advantages, disadvantages, and practical examples to help you design circuits with variable loads. In the field of power electronics, there are a variety of DC/DC converters. Each has its mode of operation and unique features. This article will focus on … Read more

DC-AC Power Electronics Converters for Battery Energy Storage

Power electronics-based converters are used to connect battery energy storage systems to the AC distribution grid. Learn the different types of converters used. The power conditioning system (PCS) only makes up a small portion of the overall costs for lithium-ion and lead-acid battery-based storage systems, as shown in Figure 1. However, the PCS's share of costs … Read more

Inductor-based astable 555 timer circuit

The 555 multivibrator circuit has become a default choice of many hobbyists and even professionals in the past 50 years. Its pair of equations for frequency and duty cycle easily gives capacitor-resistor combinations which satisfy the required output. But there could be situations when using inductor-resistor values instead would be a better solution. An example … Read more

Disarming a carbon monoxide detector

As regular readers likely already realize, I’m no fan of obsolescence by design. However, I do have exceptions to the general distaste rule, specifically in cases where continued use beyond reasonable operating lifetime might cause harm. Does a printer, whose manufacturer unilaterally decides to terminate its functional existence once a (convenient-to-manufacturer) unreplaceable part is deemed … Read more

Disarming a carbon monoxide detector

As regular readers likely already realize, I’m no fan of obsolescence by design. However, I do have exceptions to the general distaste rule, specifically in cases where continued use beyond reasonable operating lifetime might cause harm. Does a printer, whose manufacturer unilaterally decides to terminate its functional existence once a (convenient-to-manufacturer) unreplaceable part is deemed … Read more

Disarming a carbon monoxide detector

As regular readers likely already realize, I’m no fan of obsolescence by design. However, I do have exceptions to the general distaste rule, specifically in cases where continued use beyond reasonable operating lifetime might cause harm. Does a printer, whose manufacturer unilaterally decides to terminate its functional existence once a (convenient-to-manufacturer) unreplaceable part is deemed … Read more

Grasping at the battery “identity crisis”

Should batteries be considered as power sources or are they just transitional energy-storage vessels? This is not a trick question: the answer depends on how and where they are being used as well as semantics and an understanding of their role. If you are using a battery alone to power your device, gadget, or whatever, … Read more

PCB Layout Challenges—Improve Your Switched-mode Power Supply Designs

Switched-mode power supplies (SMPS) appear simple to route on your PCB, but are they? This article identifies two noise sources and simple fixes to improve your EMC performance. Chip manufacturers often try to make it incredibly simple for designers and hobbyists to implement most SMPS using modern web applications or even power design software. Backing up … Read more