Here’s’ a video tutorial from Linear Technology describing how to design a simple flyback DC/DC converter. The video promotes the use of LT’s LT3573 IC, but it also provides information that could be applied to other designs as well. Isolated … Read more
A video from the comments on our post about fast diodes for switching regulators: Recently, switching regulator clock rate and transition time have become faster, making diode turn-on time a critical issue. A potential difficulty due to diode turn-on time … Read more
Drone tipped us to scanned versions of the Linear Databook, and Linear Applications Handbook (vol.1 and vol.2) available online. These are collections of many app notes produced over the years by Linear Technology. Freely view/download the venerable set of Linear … Read more
Here’s a video from Linear Technology describing how to drive capacitive loads fast. The proposed solutions is to use multiple op-amps in a parallel configuration to achieve the high-speed requirements. Certain video and other technologies require driving planar conductive surfaces … Read more
Here’s a video from Linear Technology describing how to power microcontroller systems with Piezoelectric energy harvesting power supply IC LTC3588-1. It incorporates a full bridge rectifier, and a switch-mode regulator into one IC. New developments in ultralow power microcontrollers with … Read more
Jim Williams from Linear Technology explains how to battle switching regulator residue in linear regulator outputs. If you want to clean up the switching regulator output by using a linear regulator, you’ll run into difficulties. Linear regulators are not very … Read more
Here is an application note video from Linear Technology describing how to use their LTC4000 coupled with a switch mode regulator to charge batteries. This IC is a supervisory circuit that controls the feedback pin of a switching regulator. It … Read more
Here’s an interview with Bob Dobkin, the CTO and co-founder of Linear Technology. He talks about how he started in the industry, the founding of Linear Technology, reasons behind application notes, and how to become a good analog engineer. He … Read more
Here’s a video from Linear Technology explaining why power loss is a more important factor than efficiency in switching regulators. Comparing the efficiency of two different switching regulators can be, and usually is ,misleading. Efficiency is a misleading number for … Read more
Last week we wrote about fast diodes for switching regulators, this week Niklas points us to a video on the topic narrated by Jim Williams, the late analog electronics guru. Via the comments.
Here is an app note from Linear Technology describing the importance of diode turn-on time in high speed (<1MHz) switching regulators. Turn on time is the time it takes the voltage drop on the diode to clamp at the rated … Read more
A circuit collection of switching and linear 5 volt to 3.3 volt step down regulators. The article has good fundamentals, but it was written in 1993 so keep in mind that some of the information is a bit out of … Read more
Here is a design guide from Linear Technology describing how to design boost power supplies that can work from as little as 0.7 volts. These constant voltage power supplies that can run off until nearly every last drop of power … Read more
Here is another circuit collection from Linear Technology. This one covers power conversion, measurement, and pulse circuits. This ink marks LTC’s eighth circuit collection publication. We are continually surprised, to the point of near mystifi cation, by these circuit amalgams … Read more
Here is an interesting part from Linear Technology, it’s the LTC4370 current-sharing controller, with reverse current blocking. Basically it allows you to tie two power supplies in parallel, without the fear that one will source more current than the other. … Read more
This tutorial on voltage references covers theory and how it works in practice: When specifying a reference, keep in mind that initial accuracy, temperature coefficient and long-term stability all play a role in overall accuracy of the finished product. By … Read more
This app note from Linear Technology describes why ceramic capacitors aren’t an ideal replacement for tantalum based caps. The higher internal inductance of ceramic capacitors creates high voltage spikes: Applying a voltage step to a ceramic capacitor causes a large … Read more
Here is an app note from Linear Technology describing how to minimize switching regulator noise in linear regulator outputs. Linear regulators are commonly employed to post-regulate switching regulator outputs. Benefi ts include improved stability, accuracy, transient response and lowered output … Read more
Here is an app note from Linear Technology describing the use of virtual remote sensing of wiring voltage drops in power supply designs. Here, the LT4180 Virtual Remote Sense™ (VRS) IC alternates output current between 95% and 105% of the … Read more
A Switch Mode Power Supply circuit collection from Linear Technology. It covers 12 basic SMPS circuit categories: Battery, Boost, Buck, Buck-Boost, Flyback, Forward, High Voltage, Multioutput, Off Line, Preregulator, Switched Capacitor and Telecom.
In The Forum
Recent Comments