Operating at up to 800 kHz, the IRS20965 digital audio driver IC from International Rectifier provides protected pulse-width-modulation (PWM) switching for class D audio amplifier applications. The ...

An idea in an earlier blog is to make a pwm interface that can accept 5, 12 and 24V pulse streams. That one uses a bunch of resistors and has three separate inputs. Below that, wise commenter DB ...

Editor’s Note: This is a four-part series of DIs proposing improvements in the performance of a “traditional” PWM—one whose output is a duty cycle-variable rectangular pulse which requires filtering ...

I have had an on-going mission to design a universal-ish pcb that will convert a PWM waveform at one frequency into to another frequency while retaining the mark-space ratio. The obvious answer is a ...

Intersil Corp.’s new ISL6227 is a dual PWM controller IC designed to power DDR memory, graphics, chip sets and other systems in notebook PCs. Its wide input voltage range capability allows for voltage ...

Precise configuration is simple with a convenient USB connection to a PC. Other features include an operating temperature range of -40 to 80 °C (32-176 ºF), electrical noise immunity, and surge ...

Find a downloadable version of this story in pdf format at the end of the story. The synchronous buck converter has become the ubiquitous standard in electronic equipment. While the basic topology is ...

There comes a time in every electronic designer’s life when, whether they know it or not, they need an analog filter in their design. If you’re coming from a digital background, where everything is ...