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4 Efficient PWM Amplifier Circuits Explained

Last Updated on January 5, 2023 by Swagatam 1 Comment

digital op amp

Audio amplifiers which are designed to amplify an analogue audio signal through pulse width modulation or PWM processing and with adjustable duty cycle is known by many names including digital amplifier, Class-D amplifier, switched amplifier and PWM amplifier. (Article Contributed by: Ritu khanna) Because it can perform at high efficiencies, a Class-D amplifier has become […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Circuits, Efficient, Explained, PWM

1500 watt PWM Sinewave Inverter Circuit

Last Updated on January 19, 2025 by Swagatam 216 Comments

1500 watt inverter

A vey basic yet reasonably efficient 1500W PWM based sinewwave inverter circuit can be studied under this post. The design utilizes very ordinary parts to accomplish a powerful SPWM type inverter circuit. Main Specifications Power Output: Adjustable from 500 watts to 1500 watts Output Voltage: 120V or 220V as per the transformer specs Output Frequency: […]

Filed Under: Inverter Circuits Tagged With: 1500, Inverter, PWM, Sinewave, Watt

Arduino PWM Signal Generator Circuit

Last Updated on December 5, 2024 by Swagatam Leave a Comment

circuit

In this post we elaborately study how to make an Arduino based PWM signal generator circuit, which can be set or adjusted with a potentiometer or a pot to any preferred duty cycle ratio. By Ankit Negi  WHAT IS PWM? pwm or pulse width modulation as the name itself suggest is  modulation of width of […]

Filed Under: Arduino Projects Tagged With: Arduino, Generator, PWM, Signal

Triac Phase Control using PWM Time Proportional

Last Updated on January 2, 2024 by Swagatam 19 Comments

time2Bprop

A triac phase control using a PWM circuit can be useful only if it’s implemented using a time-proportional format, otherwise the response could be haphazard and inefficient. In a few of of my earlier articles as given below: Simple Remote Controlled Fan Regulator Circuit Push Button Fan Regulator with Display Circuit Dimmer Circuit for LED […]

Filed Under: Voltage Control and Protection Tagged With: Control, Phase, Proportional, PWM, Time, Triac

PWM Controlled Voltage Stabilizer Circuit

Last Updated on February 24, 2025 by Swagatam 79 Comments

pwm

In this post I have explained how to make a high power 100V to 220V H-bridge mains voltage stabilizer circuit using automatic PWM control. The idea was requested by Mr. Sajjad. Circuit Objectives and Requirements Secondary Features I like it to has an LCD to display parameters and a custom name,high voltage cut off, over […]

Filed Under: Voltage Control and Protection Tagged With: Controlled, PWM, Stabilizer, Voltage

Adding a PWM Multi-spark to Automobile Ignition Circuit

Last Updated on January 11, 2019 by Swagatam 13 Comments

pwm 3

The post investigates a simple 2 pin oscillator circuit which may be inserted between the pickup coil and the CDI unit of a vehicle for achieving an induced multi trigger input in response to each signal from the pickup coil coil, this in turn is expected to enhance the sparking ability of the CDI coil. […]

Filed Under: Automobile Electronics Tagged With: Adding, Automobile, Ignition, Multi, PWM, spark

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