Circuit Laboratory vs AGBoard

Circuit Lab is an electronic circuit analysis tool based on the modified node analysis method. Four kind of analysis may be conducted: - DC: linear and non linear circuits with continuous voltage and current sources; - AC: linear e 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 (available as In App Purchases). User can graphically draw the circuit and 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 BJT 16 - Common Emitter). Phasor graphs may be controlled by means of the following gesture: - Drag: to move the graph into the desired position - Pinch: to zoom in and out - Double Finger Double Tap: to reset position and zoom level to the original values Pressing Transient button, user can analyze circuit's behavior during time and get graphs of voltages and currents function of time. Each circuit can contain: - Resistors - Capacitors - Inductors - Mutual Coupled Inductors - Independent sinusoidal voltage generators - Independent pulse voltage generators - Independent sinusoidal current generators - Controlled voltage generators - Controlled current generators - Operation Amplifier - Diodes - Zener Diodes - Bjt NPN and PNP - Channel-N and Channel-P JFet - Channel-N and Channel-P Mosfet For each component, a short video is available to demonstrate how to insert it into the circuit and edit it's characteristics. Circuits may be easily stored and reused. User can print: - Circuits and component's list - Transient Analysis graphs Circuits can be easily shared through iCloud, by mail in the internal format so that can be reused by other users (on iPad too) and in PDF format. Visit my site for video tutorials and details about operational amplifier's internal model and diode's internal model.

AGBoard - PCBEditor is a touch-friendly PCB viewer and inspection tool for iPhone and iPad. Open Gerber, Excellon, ODB++, KiCad boards and schematics, Altium, DXF, Eagle, BoardView, netlist and placement files, then zoom, measure, edit and save — all processed locally. OPEN ANY PCB FILE • Gerber RS-274X, X2 and X3 — X3 carries components and nets on its own; X2 sets each layer's role • Gerber job files (.gbrjob): a whole export in one tap, layers identified • Excellon drill files (.drl, .tap, .nc…) • ODB++ jobs (.tgz / .tar / .zip / .gz) — panels expanded, nets included • IPC-2581 designs (.cvg / .xml): layers, pads, traces and nets in one file • AutoCAD DXF (.dxf): layers, lines, arcs, circles, polylines, blocks, text • KiCad natively (.kicad_pcb, .kicad_pro, .kicad_mod) — tracks, vias, pads, zones, silkscreen, components and nets • KiCad schematics (.kicad_sch) — symbols, wires, buses, junctions, net labels, hierarchical sheets; one net search covers schematic and board • KiCad symbol libraries (.kicad_sym) and drawing sheets (.kicad_wks) • Altium natively (.PcbDoc, .PcbLib) — copper, pours, silkscreen, outline, components and nets • Save ODB++, DXF, IPC-2581 or Gerber, or convert any board to ODB++, IPC-2581 or DXF. Untouched KiCad, Eagle, Altium and BoardView sources come back exactly; compatible edits are patched • Eagle .brd boards (XML) • Landrex BoardView .brd: outline, component envelopes, pins, test points, nets • IPC-D-356 netlists for net search • CSV / TXT / POS component placement (pick-and-place) files LAYER CONTROL • Show, hide, reorder, lock, recolor, duplicate, export layers • Realistic colors • Interactive 3D view: real thickness, copper, holes and components — flip it over MEASUREMENT & ANALYSIS • Three modes: Edges for true clearance between the nearest copper, Centers for pitch, Points for anywhere • Each reading: dX/dY, angle, midpoint, clearance, overlap • Snapping to pads, holes and the grid • Export all measurements as CSV • Board statistics: size, area, hole table by diameter, smallest drill and trace • Light DRC report (CSV) • Stencil area and aspect ratios (IPC-7525C), step zones drawn on the board, PDF/CSV report NET TRACE & SEARCH • Tap a trace or pad to light its whole net across layers, no netlist needed • In BoardView files, tap a pad to light its whole net, top and bottom • Nets from IPC-D-356 netlists, ODB++ jobs or IPC-2581 files • Search any net (GND, VCC…) and highlight all of its pads MARKUP & ANNOTATIONS • Add notes, arrows, rectangles and ellipses straight on the board • Annotations stay pinned through zoom and pan, and are saved in the project EDITING TOOLS • Move, duplicate, resize and delete shapes, with editable corner radius • Single-tap or marquee multi-selection, group transforms • Mirror, rotate, reset and panelize layers COMPONENT SEARCH • Component data from Gerber X3, KiCad, Altium, ODB++, Eagle and BoardView files • Search by reference, value or package; highlight top/bottom parts FAST WORKFLOW • Drag and drop from Files (iPad) • Open from Mail, Files or any cloud provider EXPORT & SHARE • High-resolution PNG images • Multi-page vector PDF (composite + one per layer) and AirPrint • Layer CSV reports and shareable project files PRIVATE BY DESIGN Your PCB files are opened and processed entirely on your device. AGBoard does not track you and never sells personal data. It contacts agboard-app.com only to check the installed version is current; no PCB file, account, payment or analytics identifier is sent. Includes an illustrated guide in English and French. Request an improvement or another format from Help -> Request feature. Free to download and opens five files at no charge. After that, an auto-renewable monthly or annual AGBoard Pro subscription is required. Subscriptions renew until cancelled in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: support@agboard-app.com