The ubiquity of the 4 to 20 mA current loop in analog process monitoring and control creates possibilities for peculiar designs of circuits for unusual accessory functions...
4mA-20mA to 0mA-20mA converter's current mirror drives grounded load
Surface mount and microwaves
Upside-down mounting can deliver inductance upsides for surface mount passives and other components...
Dual-fan PWM cooling circuit with a 6W isolated flyback power supply
This project presents the design and implementation of a dual-fan PWM cooling circuit, integrating a compact and efficient power supply with intelligent fan speed regulation...
Charge pump efficiently divides supply voltage
This circuit uses a few FETs and logic devices to down convert a DC voltage to about one half its value...
Zener test circuit serves as DC source
This Design Idea describes a versatile test circuit for zener diodes after yet another misread zener diode had infiltrated the ranks of 1N4148 diodes assembled on a pc board...
N-ch and P-ch transistors form push-pull driver
This circuit can produce high speed output signals with fast rise and fall times...
Toshiba samples TB9M040FTG SmartMCD device integrating MCU and MOSFETs for direct drive of compact automotive BLDC motors
Toshiba Electronics Europe has started shipping engineering samples of the TB9M040FTG, a new addition to its SmartMCD series...
Circuit protects from battery polarity reversal
This simple circuit can protect a sensitive electronic circuit from an accidental connection of a battery with a reversed polarity...
~0.1% resolution capacitive position sensor
Simple circuit ratios sensor capacitance to reference capacitor to measure micrometers...
How to generate a regulated negative output from a negative input using a boost controller
How to deal with the reality that a standard buck controller power stage won’t work for negative-input conversion. Telecommunications equipment, industrial test and other applications require a negative input to negative output voltage conversion...