http://www.powerguru.org/changing-the-output-voltage-of-a-switching-regulator-on-the-fly/ There are many different ways to change the output voltage Applications that require the output voltage of a power supply to change dynamically come from a wide…

http://pdfserv.maximintegrated.com/en/an/AN818.pdf http://www.maximintegrated.com/app-notes/index.mvp/id/818 Digital Adjustment of DC-DC Converter Output Voltage in Portable Applications Abstract: This tutorial discusses methods for digitally adjusti…

Many applications require current sources rather than voltage sources. When you need a high-current source, using a linear regulator is inadvisable, because of the high power dissipation in the series resistor. To solve the wasted-power problem, you…

DIGITALLY ADJUSTABLE BOOST CONVERTER The TPS61045 is a high frequency boost converter with digitally programmable output voltage and true shutdown. During shutdown, the output is disconnected from the input by opening the internal input switch. This…

http://lnbogen.com/2006/09/20/changing-the-output-path-in-your-web-applications-is-a-bad-idea/ Let’s assume we have a WebSite(the same issue applied to WebService btw) named WebApplication1. Now, we want to put its(the website’s) output files into so…

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The circuit in Figure 1 delivers programming voltages to an EEPROM under the control of an external DAC (not shown). You can replace the DAC with a potentiometer to create a general-purpose power supply operating from 12V and able to deliver a variab…

http://electronicdesign.com/print/passives/fixed-dc-dc-regulator-output-uses-digitally-controlled-potentiometer Electronic Design Tamara Schmitz Thu, 2009-10-01 (All day) Digitally controlled potentiometers (DCPs) have become very popular in a wide v…

Batteries are the typical power sources for portable-system applications, and it is not unusual these days to find microcontroller-based portable systems. A variety of microcontrollers operates at low power-supply voltages, such as 1.8V. Thus you can…

The schematic in Figure 1 shows a way to increase the power available from a current-limited 5V supply by adding power from a –5V supply. The dc/dc converter generates a single 12V, 150-mA (1.8W) output from two regulated and current-limited input so…