Power House

  • Designing a DC/DC converter that only consumes micro amps of current at no load can be compared to fueling a muscle car with lighter fluid – you may get it to work, but it won’t be easy! High efficiency at full load currents is commonplace...
  • In high-end telecommunication applications , you often face the challenges of delivering power across large-scale printed circuit boards (PCBs). To give precious real estate to critical ASICs and processors, the power supplies are often allocated to the...
  • Faced with wide supply voltage variations, how do you reduce cost and complexity of your wide input range DC/DC solution, yet maximize its performance and reliability? Take, for example, the automotive powertrain with the addition of start-stop technology...
  • A few months ago, I posted an blog about compliance testing of PoE equipment (or the lack thereof). In the article, I discussed the need for a compliance or certification program that would give end users the security and peace of mind that their PoE...
  • Bias supply is essential in a power supply. Inside a power supply, you need a bias supply to power up your ICs. Outside a power supply, you may need a bias supply to power up your MCU and/or other local power supplies in your system. Many low-voltage...
  • In part one of this two-part blog , we discussed the important design criteria required to make a Fly-Buck design stable. In this section, we will show how to apply that design criteria to a Fly-Buck design, and how it will affect the operation of the...
  • When I started working in the IC industry many years back, I imagined a trend of higher integration with everything but the kitchen sink in one IC. That’s why I chose to work for a semiconductor company. I expected all electronics products would...
  • The Fly-Buck ™ converter topology is recognized as a versatile isolated bias power supply and is gaining more and more traction in various types of applications. A synchronous buck converter can be configured as a Fly-Buck, but not all control methods...
  • While it may seem like a long time, the recently adopted and unveiled first official timeline to publication of the new 4-Pair PoE standard targets early 2017. Still, there is plenty of work left to be done. As the PoDL task force is still in the...
  • Or, when is a Fly-Buck better? Figure 1. Isolated Converters (Topology vs. Power) There are a wide variety of applications that require bias rails, which must be isolated from the main power source. Traditionally, engineers have...