Figure 1’s negative constant current source has been a textbook application for the LM337 regulator forever (or thereabouts). It precisely maintains a constant output current (Iout) by forcing the ...

An LED lighting driver chip with in-built 0-10V dimming designed by iWatt does not require a microprocessor to control the dimming function. “We believe this is the first product from anyone with ...

Once more opto-isolators are to be seen in Wonderland. The aim was to see if the faster photodiode types can operate quickly in common collector mode. They consist of an infra-red led and a fast npn ...

I picked up some pulse width modulation to voltage converter modules. You’ve seen these before under a variety of names. They look amazing for the price, but there are a few little things you might ...

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 ...