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A survival guide to scaling your PLL loop filter design
Let’s say that you have already spent some time optimizing your phase-locked loop (PLL) by iteratively massaging the phase margin and loop bandwidth. Unfortunately, you may still be unable to get a...
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How to determine bandwidth from the transient-response measurement
I’ve often thought there must be an easy way to relate the bandwidth of a power-supply control loop to its transient response, but never really found a good reference that defined this in simple terms....
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Intro to I2C: what the Internet doesn’t tell you
I trust Internet search engines as my first source to provide me with reliable and quick answers, so when I first encountered the I2C protocol, I asked my trusted-source to help out. My search...
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Flyback converters: two outputs are better than one
Flyback converters are widely used for applications that require isolation between the primary and secondary. The flyback converter’s single primary switch and output rectifier provide a cost effective...
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Layout considerations for a synchronous buck converter
Buck DC/DC converters (see Figure 1) are a very popular switching DC/DC regulator topology in many electrical and electronic applications, from cloud infrastructure to personal electronics to factory...
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Rain on this touch panel parade won’t matter
Capacitive touch panels can be touchy, especially in the rain when a drop of water can look a lot like a fingertip and the swipe of a drying towel can drive lesser microcontrollers (MCUs) crazy.The...
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Why phase noise matters in RF sampling converters
** This is the 16th post in an Analog Wire RF sampling blog series. **Radio frequency (RF) sampling data converters support very wide signal bandwidths and a variety of modulation schemes. The clocking...
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Four tips to debug a boost converter
The most efficient way to solve a problem with a converter such as failure to startup, output voltage unstable, etc. is to do some basic debugging. Basic debugging would rule out some obvious problems,...
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How you can use the LDC racetrack inductor designer tool
In my previous post, I introduced the LDC calculator tool, which you can download here. It can calculate a number of useful parameters for an Inductive Sensing application.LDC devices use inductors to...
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Here we grow again
I’m sure you’ve heard the saying, “two heads are better than one.” The truth of this statement is evident when you consider the increase in efficiency and productivity when tasks are shared between...
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Bluetooth® low energy multi-role demystified
I’ve been hearing a buzz word lately in the Bluetooth® low energy realm: Multi-role. I had a few suspicions but I wasn’t quite sure what everyone was talking about. This called for further...
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White paper: Electrifying automotive to accelerate a greener planet
Imagine a future in which cities are bustling with self-driven, zero-emission vehicles that communicate to each other and the roads as part of a greener, more efficient environment.Cars will park...
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How to correct 10Gbps performance issues with a USB Type-C™ active redriver...
With today’s 4K ultra high-definition (UHD) TVs (and future 8K UHD TVs), as well as solid-state storage speeds, more video and data bandwidth is a must. Interface standards groups in the industry are...
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What to consider when developing an aftermarket head-up display (HUD)
Demand for automotive displays that go beyond traditional dashboards, instrument clusters and center cluster is growing as head-up display (HUD) innovation accelerates from a proven concept to...
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When should you use PWM controllers?
PWM is a control method that can be applied to many power-supply topologies. And because power supplies, regardless of topology, are used in an endless set of applications, they have the reputation of...
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How switching above the AM band eases automotive Class-D amplifier EMC designs
As I recall riding in my dad’s 1957 Chevy, every time he would change the radio to a new station in the AM band, I could hear a lot of static. This loud buzzing sound represents noise from the car’s...
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Industrial innovation on display at SPS IPC Drives
German design engineers often associate November with electronica (even though it's an every other year event), but the "other big industrial conference" designers anticipate is the SPS IPC Drives show...
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Engineer thrives on solving big-picture challenges
TIers do amazing things every day at work and when they are out of the office. In our ongoing series, "Out of Office," we showcase the unique and fascinating hobbies, talents and interests of TIers all...
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Make your power bank more reliable with output short-circuit protection
Lithium ion (Li-Ion) or lithium polymer (LiPo) batteries are key components in some portable systems, especially power banks. But on rare occasions, these batteries have the potential risk of catching...
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RS-485 basics: two ways to fail-safe bias your network
In the last installment of this series , I discussed when you need terminations in an RS-485 network and how to implement both standard and AC termination schemes. In this installment, I will explore...
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