PWM Signal Generators: PWM, or Pulse Width Modulation, is a method of controlling the amount of power to a load without having to dissipate any power in the load driver.

Date Added: 7/28/2011 11:10:58 PM | Visits: 34038

An Introduction to Delta Sigma Converters: When looking for an introduction to delta sigma conversion I found that most explanations were from a very theoretical point of view. It took me a while to understand how Delta Sigma converters really work. So I decided to write this introduction for people who prefer circuit diagrams to reading abstract equations.

Date Added: 7/28/2011 11:10:11 PM | Visits: 31949

Sinusoidal PWM, current control and switching logic (PDF 125p): In contrast to grid connected ac motor drives, hardly variable in speed, power electronic devices (e.g. inverter), providing voltage supply variable in both frequency and magnitude, are used to operate ac motors at frequencies other than the supply frequency.

Date Added: 7/28/2011 11:04:15 PM | Visits: 32025

Switched Mode Power Supplies (PDF 153p): For many years the world of power supply design has seen a gradual movement away from the use of linear power supplies to the more practical switched mode power supply (S.M.P.S.).

Date Added: 7/28/2011 4:24:08 AM | Visits: 32795

FEATURES AND APPLICATIONS OF INTEGRATED CIRCUIT ZERO VOLTAGE SWITCHES (PDF 31p): The excellent versatility of the zero-voltage switches is demonstrated by the fact that these circuits have been used to provide transient free temperature control in self cleaning ovens, to control gun muzzle temperature in low
temperature environments, to provide sequential switching of
heating elements in warm air furnaces, to switch traffic signal
lights at street intersections, and to effect other widely different AC power control functions.

Date Added: 7/28/2011 4:12:09 AM | Visits: 32929

FULLY CONTROLLED 1 PH SCR BRIDGE RECTIFIER: Notes on FULLY CONTROLLED 1 PH SCR BRIDGE RECTIFIER.

Date Added: 7/28/2011 4:10:11 AM | Visits: 32756

OPERATION WITH AN RL LOAD AND SOURCE INDUCTANCE: Notes on the OPERATION WITH AN RL LOAD AND SOURCE INDUCTANCE.

Date Added: 7/28/2011 4:04:58 AM | Visits: 32115

OPERATION WITH A RESISTIVE LOAD: Notes on OPERATION WITH A RESISTIVE LOAD.

Date Added: 7/28/2011 3:31:24 AM | Visits: 33182

FULLY CONTROLLED 3 PH SCR BRIDGE RECTIFIER: Notes on FULLY CONTROLLED 3 PH SCR BRIDGE RECTIFIER.

Date Added: 7/28/2011 3:29:35 AM | Visits: 32216

Power Control with Thyristors and Triacs (PDF 84p): The term thyristor is a generic name for a semiconductor switch having four or more layers and is, in essence, a p-n-p-n sandwich.

Date Added: 7/28/2011 3:09:50 AM | Visits: 32782