Circuits & Schematics Analogue Design - 13

Robert Most EDN Circuits that latch one-of-N switches usually use a digital approach. Such circuits are often useful in human-interface situations, such as audio-mixing consoles, video-feed selection, or current-loop-control redundancy systems. In ...

John Guy, Maxim Integrated Products EDN Advances in semiconductor technology have allowed ICs to replace many mechanical relays, but relays still dominate in high-current circuits that must stand off high voltages of arbitrary polarity. Contact ...

Dave Conrad EDN There have been many different ideas presented for increasing the acoustic output of a piezo buzzer or ultrasonic transducer. Most of them involve rather complicated circuitry that drives up the total solution cost; such as boosting ...

Controlling a power supply is a necessary task in many applications, such as in battery chargers, solar power controllers, and so on. Industry provides a rich number of off-the-shelf integrated power supplies that, unfortunately, do not offer a ...

Many improvements to the follower circuit have been proposed over the years. The White cathode follower doubles the output current and makes the transfer function more linear. [ 1 ] Adding a common-base amplifying stage (current follower) ...

Most engineers know about the solid-state refrigerators called Peltier devices or, more commonly, TECs (thermoelectric coolers) and how they can actively cool temperature-sensitive electronic components, such as optical detectors and solid-state ...

Converting band-limited NRZ (non-return-to-zero) data to a digital format suitable for microprocessors and other digital systems poses problems when a signal's duty cycle or amplitude varies or when its average level unpredictably wanders ...

In theory, the design of current sensing circuitry, typically based on simple measurement of the IR voltage developed across a resistor placed in series with the current to be sensed, looks like an easy task. In theory. But in practice, ...

Chuck Wojslaw EDN The traditional approach to the design of a full-wave rectifier (Figure 1) is to set the gains of IC 1 and IC 2 to 1 and use the steering diodes D 1 and D 2 to sum the sinusoidal half-cycles of the input to form the rectified ...

Chuck Wojslaw EDN The traditional method of controlling the upper cutoff frequency in the basic inverting-amplifier circuit of Figure 1 is to add capacitor C in parallel with R 2 . The value of C controls the cutoff frequency. R 1 and R 2 ...