Electronic Design

Programmable PSUs Deliver Constant-Current Output Down To Near 0 V

XP Power’s HDS series of 800- and 1500-W ac-dc power supplies (PSUs) program the output current to achieve a true constant-current output down to almost 0 V—the industry norm is typically down to 20% ...
Phys.org

A next-generation triboelectric nanogenerator (TENG) to realize constant current from electrostatic breakdown

Working principle of the DC-TENG. (A) (i) Phenomenon of the triboelectrification effect and electrostatic breakdown (lightning) in nature. (ii) Working mechanism of a conventional TENG. (B) A ...
EDN

High Efficiency Constant Current Buck Converter for LED Lighting

This is a design idea of high efficiency constant current buck converter for LED lighting using LinkSwitch-TN. It operates in an input voltage ranging from 108 VAC to132 VAC and delivers an output of ...
EDN

Driving LEDs with Constant Current Source

The LED driver automatically adjusts the output voltage to keep the output current constant and therefore the light output constant. This works with a single LED or with a chain of string of LEDs ...
Electronic Design

Constant On-Time Switching Controller Delivers 1% Output Accuracy

Exar’s XRP6161 synchronous step-down controller, which supports point-of-load (POL) supplies up to 35 A, leverages the company’s emulated current-mode constant on-time (COT) control loop to enhance ...
Magazine

Supertex constant-current LED drivers deliver fixed 100 mA output

Date Announced: 23 Jun 2006 NEW CONSTANT CURRENT DRIVERS FROM SUPERTEX DELIVER FIXED 100mA OUTPUT-- CL6 & CL7 Are Ideal for Up To 24V/48V Applications SUNNYVALE, Calif., June 22, 2006 – Supertex, Inc.
New Electronics

PSUs provide constant current output down to 0V

A new range of 800 and 1500W programmable ac/dc power supplies has been introduced by XP Power. With a typical efficiency of up to 93%, the single output devices measure 249.0 x 127.0 x 40.9mm and 280 ...