EDN

Constant Current Source Circuit Design

This application note shows how to use linear voltage regulators to provide a constant current. Two circuits are presented, one for high-side and another for low-side current sources. The MAX1818 and ...
EDN

LM4041 voltage regulator impersonates precision current source

The LM4041 has been around for over 20 years. During those decades, while primarily marketed as a precision adjustable shunt regulator, this classic device also found its way into alternative ...
Electronic Design

Evaluating Oxide Reliability With V-Ramp and J-Ramp Testing

The JEDEC 35 Standard (EIA/JESD35, Procedure for Wafer-Level Testing of Thin Dielectrics) describes voltage ramp (V-ramp) and current ramp (J-ramp) tests to monitor oxide integrity. These tests are ...
Hackaday

Biasing Transistors With Current Sources

Over on his YouTube channel [Aaron Danner] explains biasing transistors with current sources in the 29th video of his Transistors Series. In this video, he shows how to replace a bias resistor (and ...
Semiconductor Engineering

How To Solve Frequency Jitter In Constant On-Time POLs With A Ripple Injection Circuit

The purpose of this article is to walk through the steps of implementing a ripple injection circuit for constant on-time POLs. It covers how to connect the circuit and then how to calculate the values ...