Circuit Laboratory HD vs Electronic

Circuit Lab HD is an electronic circuit analysis tool based on the modified node analysis method. It uses the same models of Spice. Four kind of analysis may be conducted: - DC: linear and non linear circuits with continuous voltage and current sources; - AC: linear and non linear circuits with sinusoidal voltage and current sources; - Multifrequency AC Analysis: linear and non linear circuits with sinusoidal voltage and current sources. It allows to analyze the circuit behavior in a range of frequencies. Useful to study the bandwidth of the circuit; - Transient: linear and non linear circuits, with sinusoidal and pulse voltage sources. User can graphically draw the circuit dragging and dropping components, then the circuit can be analyzed. Circuit may be controlled by means of the following gestures: - Drag: to move the circuit into the desired position - Tap on a component: to modify the component's parameters - Pinch: to zoom in and out - Double finger double Tap: to reset position and zoom level to the original values Tapping DC button, user gets voltage at each circuit's node. Tapping AC button, user gets voltage phasors at each circuit node or the bode graph of the voltage at each circuit node (see 06 BJT - Common Emitter). User can select the desired phasors to get the related graphs which may be controlled by means of the following gestures: - Drag: To move the chart in the desired position; - Pinch: To enlarge or shrinks the graph; - Double Tap with two fingers to restore the position and zoom level to the original values. Tapping Transient button, user can analyze circuit's behavior during time and get graphs of voltages and currents function of time. These graphs may be controlled by means of the following gestures: - Drag: To move the chart in the desired position; - Pinch: To enlarge or shrinks the graph; - Double Tap with two fingers to restore the position and zoom level to the original values. Moreover, user can enable a mobile cursor to read the values ​​in the different points of time (tap on the graph to display the cursor, tap to remove it and move it to read the values​​). Each circuit can contain: - Resistors - Capacitors - Inductors - Mutual coupled inductors - Independent sinusoidal voltage generators - Independent voltage pulse generators (with which you can also generate square, triangular and sawtooth waves); - Independent sinusoidal current generators - Controlled voltage generators - Controlled current generators - Operation Amplifier - Diodes - Zener Diodes - NPN and PNP Bjts - Channel-N and Channel-P JFet - Channel-N and Channel-P Mosfet In addition, there are the following measuring instruments: - Voltmeter; - Ammeter. User can manage his own components library to store most used components. For each component, a short video is available to demonstrate how to insert it into the circuit and edit it's characteristics. In addition, there are some more detailed video tutorials to learn how to use the application. Circuits may be easily stored and reused. User can print: - Circuits and component's list - Transient Analysis graphs (the mobile cursor is also printed if visible) Circuits can be easily shared through iCloud, by mail in the internal format so that can be reused by other users (on iPhone too) and in PDF format and they are compatible with Circuit Lab for Mac. Visit my site for video tutorials and details about operational amplifier's internal model, diode's internal model and Bjt's internal model.

Electronic Toolbox 2 – The classic, re‑imagined Since 2009, Electronic Toolbox has been one of the most comprehensive electronics references and toolboxes on the App Store—for professionals, students, makers, HAMs, and hobby engineers. With Electronic Toolbox 2, a fully modernized new edition arrives: familiar in structure, up to date technologically, and consistently evolved. # The best and most complete electronics app—now for iPhone, iPad & Mac Over 70 tools, tables, and references—from “A” like ASCII table to “Z” like Zener diode calculation: Everything you need in the lab, workshop, or lecture hall, in one place. • Universal app: One purchase—three platforms (iPhone, iPad, Mac) • iCloud sync: All settings and favorites automatically on all devices • Multi‑window support: Use multiple tools in parallel—ideal for comparisons • PDF export: Save, document, or share results • Pinned tools: Keep important tools always at hand • Interactive tools: New visualizations, e.g., in the Battery Charge tool • Modern UI with Dark Mode: Redesigned, clearly structured, and easy to read # Proven foundation, familiar workflow Electronic Toolbox 2 stays true to its heritage—all known tools are included and have been carefully revised. From calculators to reference data: nothing is missing, much is better. Examples: • Resistor color code and coil calculator • NE555 and heatsink calculation • Conversion and unit tools (HEX, AWG, frequency, and more) • Parametric component search with datasheets • Tables for batteries, drill sizes, IC pinouts, packages, and more • References for boards like Raspberry Pi, Arduino, BeagleBone, Nano Pi … • Global search across all tools • Fully usable offline • No ads, no in‑app purchases # Continuously improved—since 2009 Electronic Toolbox has been maintained and improved with passion for over a decade. With version 2, we carry this legacy forward—on a new technical foundation for the years ahead. Feedback from the community remains central: every suggestion helps make the toolbox even better. # Gentle transition The original Electronic‑Toolbox Pro remains fully usable—existing workflows are not interrupted. Existing customers can switch to the new version via a discounted bundle. Features like the Circuit Editor or Projects will initially remain exclusive to Electronic‑Toolbox Pro and are not yet included in this new edition. # From the developer Jan Roskosch built Electronic Toolbox 2 together with his father Marcus Roskosch, the developer of the original app. A modern realization of a classic—with the same passion for electronics, precision, and quality. # At a glance • Completely new, modern interface • All known tools from the original app included • Universal app for iPhone, iPad, and Mac • iCloud synchronization • PDF export & multi‑window support • Fully usable offline • No ads, no in‑app purchases ----- Electronic Toolbox 2—the future of the electronic toolbox. Continued with passion. Built for you.