# Author: Dennis Feucht

All posts by Dennis Feucht below:

## Oscilloscope Trigger Generators: Precision Synchronizers

Oscilloscope triggering circuits can be adapted to other applications, as precision synchronizers. Both analog and digital ‘scope triggering has been enhanced by various auto-trigger schemes. This tutorial overview of ‘scope triggering circuits and schemes Continue Reading...

## Buffer Amplifier Design

The x1 voltage amplifier or “buffer” is a standard building block of analog design. This article presents the design of a discrete, low-parts-count, high-performance, matched-transistor buffer, and covers some of the finer points in optimizing its Continue Reading...

## Mixed-Signal Circuits, Part 2: ADC and DAC Dynamics, the w-Domain, and Feedback Loop Design

In this part, we push forth to transfer functions in s and z of ADCs and DACs, then consider briefly how to design feedback loops that span the analog-digital Continue Reading...

## Mixed-Signal Circuits, Part 1: From s to z – The Discrete Complex-Frequency Domain

This article series is a mini-tutorial on the discrete complex-frequency domain and its complex variable denoted as Continue Reading...

## Units, Pseudo-Units, Scaling Factors, and Units Conversion

The additional connection between numbers and the physical world is achieved through the use of Continue Reading...

## High-Efficiency Analog Amplifiers, Part 3: Optimal Parallel-Segmented Voltages

Optimal parallel-segment amplifier voltages are derived so that for either resistive or constant-current loads, the power dissipation in the parallel transistors is the Continue Reading...

## High-Efficiency Analog Amplifiers, Part 2: Series and Parallel Segmented Amplifiers

Segmented amplifiers are analog amplifiers that switch on different transistors over the input-waveform voltage range, thereby limiting the voltages across them and hence their power Continue Reading...

## High-Efficiency Analog Amplifiers, Part 1: The Efficiency-Linearity Tradeoff

Switching amplifiers, like switching power supplies, are more efficient than linear or analog amplifiers. However, the analog amplifier is not obsolete just yet; new circuit ideas improve its efficiency to be comparable to switching amplifiers. This article Continue Reading...

## Case Study: Medical Laser System; Part 4: Laser System Design

In this fourth part, the design of the whole laser loop is completed, beginning with the Continue Reading...