Content posted in August 2014
Interfacing to ADCs: Power Supplies, Part 3
Jonathan Harris 8/26/2014 16 comments
I thought it would be good to continue looking at the example I gave in my last blog where we looked using fewer LDOs and combining power supply rails on an ADC while maintaining isolation with ferrite beads.
Protecting Against Reverse Polarity: Which Method Is Right for You?
Richard Chung 8/22/2014 17 comments
Reverse polarity is a dangerous electrical condition that can be difficult to prevent once a system leaves the factory, so adding circuitry that protects against its effects is an important part of improving system reliability. This article looks at the many methods for protection and weighs their tradeoffs.
PWM DAC Design
Dennis Feucht 8/15/2014 26 comments
The question that arises in the design of a simple PWM DAC is what the low-pass filter pole frequency should be relative to the PWM frequency. This question is addressed by deriving the design equation.
Resistor Tech Brief 1
Steve Taranovich 8/15/2014 3 comments
Here is our first "Ask the experts" tech brief in advance of our Resistor chat on Wednesday, August 20 at 1PM ET (10AM PT). I hope this stirs up some questions/comments for our chat.
Signal Chain Basics #92: The Insidious Claw Curve
Signal Chain Basics 8/11/2014 1 comment
Operational amplifier (op amp) datasheets normally have a long list of characterization curves. This list can be overwhelming to new engineers. One frequently misunderstood curve is nicknamed the "claw curve" because of its distinctive claw-like shape.
What Does Your Noise Nemesis Look Like?
Analog Angle 8/6/2014 2 comments
Noise in its many manifestations is ever-present in electronic circuit and systems designs. Engineers must understand the specific types of noise they are dealing with before they can effectively suppress and overcome it, via both analog and algorithmic techniques.
LEDs Are Photodiodes Too
Steve Taranovich 8/5/2014 27 comments
I read RAQ No. 45, "Glass Diodes May See the Light – and Hum," which discusses 100/120 Hz LF noise caused by a glass diode’s photosensitivity. I need a cheap photodetector, but a 1N4148 doesn't seem to work. How should I connect it?
Recently, AEye, was demonstrating their LiDAR system at CES in Las Vegas. A man using his new $1,198 Sony camera found that his photographs were damaged after he took pictures of AEye’s LiDAR LASER scanning system
The e-car basic concept is represented by the role of the electronics technology in making the car more comfortable, safe and effectively interacting with the driver. The first characteristic, comfort, is nowadays being dramatically enhanced by the new solution known as Road Noise Control (acronym: RNC) that has been introduced by BOSE during the CES 2019 in Las Vegas
Early microcontrollers had fixed I/O. It may have been possible to connect one of several internal peripherals to the I/O pins, but those pins were restricted and there was never an option of conditioning those outputs
In the not too distant past, if you were seen holding a conversation with a household appliance, you might have run the risk of being committed.
The voltage regulator is a very important part of the power management and the placement of voltage regulator plays an important role in improving the performance.