2017-12-01 - Ausias Garrigos & David Marroqui

Bang-bang photovoltaic regulator needs no magnetics

You don’t always need a sophisticated MPPT controller to extract and regulate photovoltaic power. This elegant little circuit may do just fine.

2017-10-04 - Jerry Steele

Use Copper to Temperature-Compensate High Current Measurements

Measuring high currents via cable voltage drop is an economical solution, but how can the large copper tempco be compensated?

2017-08-31 - Jim Brannan

Hybrid PWM/R2R DAC improves on both

DAC designs allow for a seemingly endless range of incremental improvements. Here’s another you’ll like.

2017-08-03 - Mark Stansberry

Music to the ears: Basics of pedal effect

Fundamental to the reproduction of era-specific and musician-specific music is the technology contained in pedal effect gadgets. Here's how you can get started design a pedal circuit.

- Mark Stansberry

Music to the ears: Pedal effect design

Musicians favour pedal effect circuits created with specific types of components or with a specific circuit design because of how sound changes with them. Here's a design example.

- Mark Stansberry

Music to the ears: Effect simulation, emulation

Audio simulation and emulation with LTspice and a simple digital audio system, such as Windows Multimedia Player, gives you a design advantage. But simulation and emulation have their own pitfalls.

2017-08-02 - Akshat Jain, Ranajay Mallik

Designing an induction cooker: Basics first

Induction cookers are quick to cook and highly energy efficient and safer due to the lack of an open flame. Here's how you design one.

2017-06-22 - Alperen Akkuncu

Lowering the ripple of PWM DACs

Learn about lowering the ripple of PWM DACs without decreasing the cut-off frequency of the low-pass filter or increasing the frequency of PWM signal.

2017-06-15 - John Dunn

Gain without limits

Here's a SPICE model where each NPN stage is biased by its three resistors in such a way that none of the stages can saturate no matter how high the transistor gain ß gets.

2017-04-20 - JR Smallwood

1-bit PROM programmer targets high-current devices

Although most devices use the ROMs in their logic-one state, a programmer is a handy device when programming is required.