A ripple-generating circuit is usually needed to ensure stability of constant-on-time (COT) controlled buck converters. Different values of the ripple generating circuit can have direct impacts on ...

Download this article in PDF format. High-brightness visible-light LEDs (VLEDs) require a constant-current source. This simple, RFI-free circuit takes advantage of the normally-on properties of the ...

CMOS current mirrors are pivotal in modern electronic circuitry, providing accurate current replication that is essential for biasing, amplification and active loading in a myriad of integrated ...

Controlling LEDs is really quite simple. As you know, they need to be current limited which is as easy as applying Ohm’s law to your given set of values. To make things even more even there’s a slew ...

SAN DIEGO, USA: ROHM Electronics has introduced the industry’s first AC/DC-isolated LED driver modules utilizing constant-current circuits optimized for driving LEDs. The BP58xx series integrates all ...

Editors’ Note: This segment is adapted from Chapter 2 of Power Supplies for LED Driving by Steve Winder. Since an LED behaves like a constant voltage load, it can be directly connected to a current ...