With the trend toward miniaturization, temperature effects in power electronics are more pronounced than ever. If you’re dealing with temperature fluctuations in your circuit, you may need a stabilization system to keep the temperature constant and minimize noise in the circuit response...
Temperature compensation with a simple resistance temperature detector
WIZnet launches ioPort series: WIZ-IP20 & WIZ-IP55
WIZnet is releasing ioPort, a new RJ45-style module series made to add Ethernet to embedded products with less PCB work and faster time-to-market...
Generating negative resistance
I’ve been working with dc power supplies and batteries for over 30 years now and every day I employ Ohm’s Law, V = I·R, to solve some problem or make some calculation related to dc power...
Passive RC circuit produces gain
Could a simple passive RC network without any transformers, inductors, switches, or non-linear components produce a voltage gain?...
Toshiba introduces 40V eFuse ICs in small TSOP6F packages for power line circuit protection in industrial and consumer applications
Toshiba Electronics expands its electronic fuse (eFuse) lineup with the introduction of the 40 V TCKE6 series...
Self-oscillating sawtooth generator spans 5 decades of frequencies
There are many ways of generating analog sawtooth waveforms with oscillating circuits. Here’s a method that employs a single supply voltage rail to produce a buffered signal whose frequency can be varied over a range from 10 Hz to 1 MHz...
Transformerless 85-260VAC to 12VDC-0.2A power supply
Whenever you hear the transformerless supply term, you initially imagine the capacitor-based solution: a high-voltage non-polarized capacitor in series with the mains line, a bridge rectifier, a Zener diode, and a filtering electrolytic capacitor...
Toshiba launches high-speed colour CCD linear image sensor for Automated Optical Inspection equipment
Toshiba Electronics introduces the TCD2400DG, a new lens reduction type CCD linear image sensor designed to meet the demanding requirements of modern optical inspection equipment...
Full circle current loops: 4 mA-20 mA to 0 mA-20 mA
A topic that has recently drawn a lot of interest and no fewer than four separate design articles here in Design Ideas, is the conversion of 0 to 20 mA current sources into industrial standard 4 mA to 20 mA current loop signals...
Another silly simple precision 0-20mA to 4/20mA converter
A recent Design Idea, “Silly simple precision 0/20 mA to 4/20 mA converter,” by prolific DI contributor Stephen Woodward uses the venerable LM337 regulator in a creative configuration along with a few passive components, to translate an input 0-20 mA current source...