This article explains why Bode plots are used to showcase the transfer function of a power supply loop...
A Bode diagram to display a control loop
Toshiba introduces quad-channel digital isolators for high-temperature industrial applications
Toshiba Electronics Europe has expanded its standard digital isolator line-up with the DCL54xx01A series, comprising ten quad-channel devices that support data rates of up to 150 Mbps...
Phantom-powered solid-state linear airflow sensor
Self-heated Darlingtion transistor pair linearly senses airflow using just two wires for both power in and signal out...
Hz to 4-20mA or 0-20mA current source is compatible with grounded loads
Minimal circuit converts input frequency to a precision current source that also accommodates grounded inputs...
Method provides fast, glitch-free isolation of I2C and SMBus signals
I2C is a popular serial protocol for power controllers, ADCs and DACs, EEPROMs, and other devices. In certain data-acquisition and power-control situations, you must isolate the master from one or more slave devices...
An off-line power supply
One of my electronics interests is building radios, particularly those featured in older UK electronics magazines such as Practical Wireless...
Bidirectional solid state relay
The circuit below can switch up to 4 Amps of current with a peak voltage up to 20 V. It is fully isolated using two inexpensive red LEDs...
Simple, compact circuit conveniently controls devices and systems
This easy-to-build PWM source is a handy testing tool for hobbyists, technicians, engineers and other RC-based device developers...
Medium power 12V brush motor speed controller
In many applications, you would like to hold the speed of a motor constant, even as variations in the power supply voltage or mechanical load try to change its speed...
Logic controlled 12V DC motor with automatic brake
There are times when you would like to control a DC motor using a simple +5 V logic swing signal. The circuit below performs this feat and also includes an automatic motor braking circuit...