PWM or Pulse Width Modulation has generally been regarded as too complicated for PC fan speed control compared against using rheostats or linear voltage regulators such as the LM317. I present here a ...
In some power-supply applications, the pulse-width-modulator (PWM) controller is powered up from an auxiliary winding tapped off the power stages transformer (Fig. 1). This technique reduces power ...
The ISL6545 and ISL6545A from Intersil are single-output PWM controllers. These devices integrate the MOSFET drivers, boot diode and current-sensing functions on a single chip. The ISL6545 and ...
A few weeks ago, I saw a reader’s question about how to run PS3 cooling fans using an external electronics circuit. At the time I was busy with some other projects. The other day, I decided to put my ...
Pulse-width modulation (PWM) margining is a simple technique to adjust the output voltage of power supplies. This application note discusses the effect of PWM on the power-supply output-voltage noise, ...
I am building myself a rheobus and I have 4 5 watt 100 ohm rheostats as can be seen at(http://www.caseetc.com/cgi-bin/caseetc/EC-068.html).<BR><BR>Here is my question ...
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