Articles and news - 4

Quickly estimate capacitor dielectric absorption
Quickly estimate capacitor dielectric absorption
08.05.2021 Circuits

A key parameter of capacitors is their dielectric absorption (DA). If you want to estimate the capacitor’s quality or recognize its type of dielectric you can simply measure its DA...

TinyCalibrator OSC Calibrator High-Voltage Fuse Resetter
TinyCalibrator - OSC Calibrator and High-Voltage Fuse Resetter
08.05.2021 Circuits

Because the 8-pin ATtinys only have a few GPIO pins available, they are usually operated without an external clock. The internal oscillator does a good job in most applications, but when it comes to precise timing, its ±10% accuracy is often insufficient...

First full 32-bit plastic M0 microcontroller
First full 32-bit plastic M0+ microcontroller
08.05.2021 News

ARM has developed the first full 32bit microcontroller built on a flexible plastic material using a 0.8 μm process from PragmatIC. The PlasticARM microcontroller consists of 56,340 NMOS transistors and resistors...

4- 20-mA loop needs no external
A 4- to 20-mA loop needs no external power source
08.04.2021 Circuits

The simple circuit uses a low-current-drain MAX4073H amplifier to sense the current flowing through a 4- to 20-mA loop. The circuit senses the current through a 1 Ω resistor with a fixed gain of 100 and uses no battery or dc power supply...

Simple circuit forms peak clipping indicator
Simple circuit forms peak/clipping indicator
07.29.2021 Circuits

The simple peak detector is the result of a need for a single-5V-supply, level/clipping indicator for a multimedia-PC sound system. The design is unique in that it detects both stereo channels on a single peak-hold capacitor...

Understanding grounding shielding guarding high-impedance applications.
Understanding grounding, shielding, and guarding in high-impedance applications. Part 2
07.29.2021 Articles

The safety shield surrounds the electrostatic shield, protecting the instrument user from hazardous voltages on the DUT, or the measurement leads...

Infineon introduces industry first USB PD
Infineon introduces industry's first USB PD 3.1 high-voltage microcontroller with higher wattage support

Infineon Technologies introduced the industry’s first high-voltage microcontroller with USB Power Delivery 3.1 support...

Understanding grounding shielding guarding high-impedance applications.
Understanding grounding, shielding, and guarding in high-impedance applications. Part 1
07.28.2021 Articles

Inadequate shielding and bad grounding are often blamed when measurements are inaccurate, especially in high-impedance applications. In fact, shielding and grounding problems are frequently responsible for measurement errors, but many test system developers aren’t quite sure why...

Measuring inductance Design Idea discussion
Measuring inductance: Design Idea discussion
07.27.2021 Articles

Jim McLucas, author of the Design Idea Circuit measures capacitance or inductance wanted to respond to some discussion about using this Design Idea...

Circuit measures capacitance or inductance
Circuit measures capacitance or inductance
07.26.2021 Articles

Engineers usually have access to signal and function generators, as well as frequency counters and oscilloscopes, but they may not have access to capacitance or inductance meters...