EDN Design Ideas published a design of mine in May of 2025 for a passive two-way current mirror topology that, in analogy to optical two-way mirrors, can reflect or transmit...
Active two-way current mirror
Ignoring the regulator's reference
DAC control (via PWM or other source) of regulators is a popular design topic here in Design Ideas (DIs) corner...
Quickly find pc-board shorts with low-cost tracer technique
A predominant failure mechanism for production pc boards is shorted traces. Finding hidden shorts is often time-consuming and frustrating...
Buck boost converter using XL6019 (bifilar choke)
This project features a compact and efficient DC-DC buck-boost converter, based on the XL6019 chip, designed to maintain a stable 12 V output over a wide input voltage range of 9 V to 30 V...
TI DLP technology delivers high-precision digital lithography for advanced packaging
Texas Instruments is enhancing the next generation of digital lithography with the introduction of the DLP991UUV digital micromirror device, the company’s highest resolution direct imaging solution to date...
Two-wire precision current source with wide current range
An interesting analog design problem is the precision current source. Many good designs are available, but most are the three-wire types that can be used as a positive or a negative polarity source, but not both from the same circuit...
Toshiba expands low-voltage single-gate logic device lineup with 21 new XSON6 packaged products
Toshiba Electronics Europe expands its 7UL series of low-voltage, single-gate logic ICs with the introduction of 21 new devices housed in the industry-standard XSON6 package...
Adjustable load
An adjustable load provides a constant-current load for testing power supplies and batteries. It allows you to set the load current to up to 1.05 A, using a potentiometer, and displays the current on a three-digit LED display controlled by an ATtiny84...
Solar mason jar light
I have modified several commercial solar garden lights over the years. I switch out the LED, solar panel, battery pack and control circuit. The result is a much better overall light...
RTDs provide differential temperature measurement
You sometimes need to measure the differential temperature between two points in a system to a greater accuracy than that required in measuring the absolute temperature at either of the individual points...