| Lots of circuit variations exist on this theme. We would like to add one more, however, that’s not easily beaten for simplicity and reliabil...
| Lots of circuit variations exist on this theme. We would like to add one more, however, that’s not easily beaten for simplicity and reliabil...
| Opamps seldom have an output current drive capability of greater than about 12 mA, and so they are not suitable for use in 20 mA current loo...
| The LM2575 is a ‘Simple Switcher’ from National Semiconductor, which means it’s a switch-mode controller IC that’s relatively easy to use. I...
| The circuit described here provides versatile, competent protection against extremely high inrush currents, all at a reasonable cost.
| Current personal computers with an ATX motherboard are not provided with a switched mains output socket. It is therefore no longer possib...
| Following the detailed description of the preamplifier in last month's installment, this second and final part of the article deals with t...
| If you are after great sound at an affordable price, go out and buy a pair of high-quality headphones. Next, you will need a dedicated hea...
| The in-car audio amplifier is intended for public-minded drivers who not only love their in-car music, but also their hearing (and that of...
| The battery charger is intended primarily tor charging, and keeping charged, without supervision, lead-acid batteries of cars and motorcyc...
| Knowing the current drawn (by a battery) or generated (by a solar cell) over aperiod of time is a requirement in many applications that c...