Ahmad Ayar

Applications/Product Definer at Analog Devices, Fremont, California. Ahmad earned his Bachelor's degree in Electrical and Electronics Engineering from 1995–1999.

Areas of interest of the author: Supply Light

Publications on RadioLocman by the author Ahmad Ayar:

Simple PWM Modulator Allows DC Control Signal To Drive LEDs
LED-driver circuits can be dimmed by applying a variable duty cycle (pulse-width modulation, or PWM) to the LED. PWM exploits LED behavior: At higher current levels, the LED’s light output is higher for a given level of power dissipation (temperature). Thus, applying PWM...
Nov 25, 2020
Logic-Level Signals Shifted To Dim -48-V LED Driver
The main source of power in a telecommunications system is -48 V. This source’s negative polarity and its large magnitude with respect to ground pose a challenge when designers want to use low-power ICs in the telecom system’s application circuits. Fortunately, the...
Jun 25, 2009