#ICIRCUIT EVERYCIRCUIT SIMULATOR#

Upper-case 'M' refers to Mega, or 10 +6, while lower-case 'm' refers to milli, or 10 -3.)Įvery simulation type has a separate Outputs box where you can choose what you want to plot. (Note: if you're used to SPICE, where inputs are case insensitive and both 'm' and 'M' mean 'milli', note that CircuitLab is different and follows the standard SI prefixes. For example, you can type '1k' for a resistance instead of typing '1000', or '22p' instead of '22e-12' (which works too!). Human-Friendly InputsĬircuitLab allows you to use human-friendly metric prefixes for all of the numerical input boxes. Note: The values displayed will only be updated when you run a DC Simulation, so a new DC Simulation needs to be run whenever the circuit changes in order for the values dispalyed to be accurate. These values will be updated whenever you run a DC Simulation, and will be rendered on the exports of your schematic. This will cause the DC voltage across the Voltmeter or the DC current through an ammeter to be displayed next to the element. You can double click a Voltmeter or Ammeter element to bring up the Parameters Box where you can select 'Show Voltage' or 'Show Current'. The Voltmeter and Ammeter elements can be used to display the voltage across or the current through the element on the schematic. These automatically-assigned names should not be depended on to stay consistent as you continue working on your circuit, so it's good practice to name nodes whose voltages you'll want to measure or plot. If a node is not given a name using a Name Node element, then it is assigned a name by CircuitLab. If that is the case, the node can be referenced by any of its explicitly created names. It is valid to have more than one name on one node. Giving two nodes the same name is equivalent to drawing a wire between two nodes. You can 'connect' two nodes in your circuit by naming them the same thing. A Name Node can be dropped onto a wire or directly onto any circuit element's endpoint. You can do this by using the Name Node circuit element. It is often very useful (and good practice) to name certain nodes in your circuit. It is perfectly valid (and often more compact) to connect two or more endpoints of a circuit elements together without expcitly drawing a wire between them. By definition, the two endpoints of elements that are connected by a wire have the same voltage. A node in CircuitLab is the same thing: a point where two or more elements that are connected by a wire.

#ICIRCUIT EVERYCIRCUIT SIMULATOR#

However, inside a circuit simulator (or even when solving a circuit on paper!), we have to pick one node to be our reference in order to calculate voltages at other nodes.Ī node in an electrical circuit is a place where two or more circuit elements meet. In real life, ungrounded battery-operated circuits work just fine, because to the circuit, only relative voltages matter.

The concept of a ground in a circuit simulator is similar but not identical to the concept of an electrical ground in the physical world. This means that every circuit has to have at least one GND element, or the circuit will not simulate. CircuitLab is not compatible with browser zoom, and currently has no way to detect this condition.)Įvery voltage in CircuitLab is calculated relative to the ground ( GND) node, which is by definition at 0 volts. (Note: please avoid holding Ctrl while actuating the mousewheel, as this generally causes the browser to attempt to zoom on its own. Holding down the Ctrl key while clicking and dragging on the grid will allow you to pan the viewport. You can switch to Simulate Mode by clicking the 'Simulate' button along the bottom toolbar.Ĭlick a component in the Build Box to select it, and then click somewhere on the grid to insert into your circuit.ĭouble-click any component in your circuit to bring up the corresponding parameter editor.

Icircuit everycircuit