iPocket Draw vs Circuit Laboratory

** look at the video tutorials put online on our site ** iPocket Draw is a vector drawing program comprehensive (CAD 2D), which offers to you total control over your drawing. Of course all the simple drawing tools are available: line, rectangle, oval, arc, polygon, text. But also tools of free line with vectorization option (recognition of simple shapes), spline, regular polygon. All attributes of each object can be edited and changed: line color, line thickness, background color, dotted, arrow, font ... But also the coordinates of each object because iPocket Draw lets you draw with a scale chosen and modified. iPocket Draw also has a cotation tool simple and multiple. And functions of attraction powerful and accurate on the ends of objects but also the centers and on the intersections between all object types. The drawing area is not limited. The number of objects either. The zoom in and out either. The number of undo either. You can draw on several layers and create configurations of layers. You have an object library that you can complete as you want. A comprehensive menu command allows you to: select all, copy, cut, paste, group, ungroup, lock, unlock, duplicate, move, mirror horizontally or vertically, rotate, align, distribute, create parallel, divide, change the scale, converting in lines, polygon, send back, put in front of. You can insert photos or images or pdf files in your drawings. iPocket Draw has a file manager from which you can send your drawings by e-mail format iPocket Draw (RealCADD) or DXF or pdf or jpg image. But also to export in a photo album. And also print. Because we are not afraid of your judgments, you can try iPocket Draw with the Lite version which includes only a limitation on the number of objects (50) by drawing. If you have problems, please contact us by mail (see information window of iPocket Draw: i button). Thanks.

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.