Articles and news - 4

15-bit voltage-to-time ADC Proper Function anemometer
15-bit voltage-to-time ADC for "Proper Function" anemometer linearization
04.03.2024 Circuits

Awhile back I published a simple design idea for a thermal airspeed sensor based on a self-heated Darlington transistor pair. The resulting sensor is simple, sensitive, and solid-state, but suffers from a radically nonlinear airspeed response...

Selecting right inductor current ripple
Selecting the right inductor current ripple
04.02.2024 Articles

A switching regulator converts an input voltage to a higher or lower output voltage. For this, an inductor is used to store energy temporarily...

Virtual-zener circuit simplifies high-voltage interface
Virtual-zener circuit simplifies high-voltage interface
04.01.2024 Circuits

This design for a photonic switch needs more than approximately 70 V at the cathode of a duo-lateral optical position-sensing device...

Rotary encoder mates digital potentiometer
Rotary encoder mates with digital potentiometer
03.29.2024 Circuits

In developing electronic systems, designers look for products or ideas that may benefit from the better performance, smaller size, lower cost, and improved reliability that an IC can offer. Toward that end, the digital potentiometer emerged as an alternative to its mechanical counterpart, the mechanical potentiometer...

Charge pump halves voltage double current
Charge pump halves voltage to double current "efficiency"
03.27.2024 Circuits

Capacitor type charge pumps are a well-known, simple, efficient, cost-effective method for inverting and multiplying voltage supply rails. Perhaps less well known, however, is that they also work just as well for dividing voltage...

Add grounded-switch feature TOPSwitch on off
Add a grounded-switch feature for TOPSwitch on/off control
03.26.2024 Circuits

The Power Integrations TOPSwitch family of integrated flyback-regulator ICs provides exceptional performance in small, low-pin-count packages. For the lowest-pin-count packages, the multifunction, or M, pin serves multiple purposes...

Auxiliary supply requirements SiC GaN gate
Auxiliary supply requirements for SiC/GaN gate driver systems
03.22.2024 Articles

Wide bandgap power semiconductor devices like Silicon Carbide (SiC) MOSFETs are enjoying growing popularity in many modern power electronic applications like E-mobility and renewable energy. Their extremely fast switching speed capability helps to increase efficiency...

Supersized log-scale audio meter
Supersized log-scale audio meter
03.21.2024 Circuits

At the end of the DI for a Simple log-scale audio meter I promised to show how to upgrade it to work better...

High-power LED drivers require no external
High-power LED drivers require no external switches
03.20.2024 Circuits

As the latest generation of new LEDs achieves higher levels of power and efficiency, use of these devices extends to new areas, such as flashlights and vehicular applications...

Keep heat down power op amps
Keep the heat down in power op amps
03.19.2024 Articles

When you include a power op amp, such as PA05 from Apex Microtechnology, in your design, it is desirable to minimize the supply-to-output differential to a minimum to reduce power dissipation and to fully exploit the amplifier's output range...

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