Articles and news - 3

Hartley oscillator requires no coupled inductors
Hartley oscillator requires no coupled inductors
10.27.2022 Circuits

Examine a traditional Hartley oscillator circuit, and you'll note its trademark: a tapped inductor that determines the frequency of oscillation and provides oscillation-sustaining feedback...

Waveform generator minimizes amplitude dependency
Waveform generator minimizes amplitude dependency
10.26.2022 Circuits

Engineers have long used function- generator circuits employing analog integrators and high-hysteresis comparators. The outputs of these circuits often depend on variations in temperature, power-supply voltage, load, and parts...

China PCB Prototype and Fabrication Manufacturer
Microcontroller Controls Relays via RF Modules
Microcontroller Controls Relays via RF Modules
10.25.2022 Circuits

Targeted for the smart home, this design leverages two PIC MCUs that use a wireless RF transmitter/receiver to control up to six relays and monitor two analog signals...

SiTime Expands Automotive SAM New Family
SiTime Expands Automotive SAM with New Family Precision Timing Solutions
10.25.2022 News

SiTime Corporation introduced an ultra-low-power 32 kHz oscillator family that provides accurate time keeping for advanced driver assistance systems (ADAS), infotainment, instrument clusters and electronic control units...

Wireless battery energizes low-power devices
Wireless "battery" energizes low-power devices
10.24.2022 Circuits

Wireless connectivity is a growing trend in portable consumer gadgets. Unfortunately, designs cannot achieve true mobility because of short battery life, so the power cord still must connect the device to the power grid to get the required energy or to recharge the batteries...

How Build Programmable Oscillators Using Digital
How to Build Programmable Oscillators Using Digital Potentiometers
10.21.2022 Articles

Digital potentiometers are versatile and can be used in a wide variety of applications, for example, for filtering or generating ac signals. However, sometimes the frequency must be able to be varied and adapted to the desired application...

Adjustable triangle sawtooth wave generator using
Adjustable triangle/sawtooth wave generator using 555 timer
10.20.2022 Circuits

The circuit works due to the fact that voltage increases or decreases linearly when a constant current flows into or out of a capacitor. If we manage to charge and discharge the capacitor with the same constant current, then the voltage of the capacitor will become a triangular wave...

GaN ICs Shrink Motor Drives Speed
GaN ICs Shrink Motor Drives and Speed Time-to-Market for eMobility, Power Tools, Robotics, and Drones
10.20.2022 News

The EPC9176 GaN-based inverter reference design enhances motor drive system performance, range, precision, torque, all while simplifying design...

Ray Dolby Engineer Who Revamped Sound
Ray Dolby, the Engineer Who Revamped Sound Technology
10.19.2022 Articles

Before his name became a brand and a household word, Ray Dolby was a pioneer in noise reduction technology. His innovations revolutionized the audio and entertainment industries...

Added ADC Improves Analog Square-Root Extraction
Added ADC Improves Analog Square-Root Extraction Accuracy
10.18.2022 Articles

Known devices for taking the square root contain an operational amplifier and a multiplier connected in a feedback loop. The accuracy of these devices depends on the method of building the multiplier, with the most accurate using logarithm and anti-logarithm functions...