Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

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# Voltage Sources vs. Current Sources

### Voltage Source

• A voltage source maintains a fixed supply voltage to an electrical circuit - independent of the circuit load resistance and the applied current.

### Current Source

• A current source maintains a fixed supply current through an electric circuit - independent of the circuit load resistance and applied voltage.

Note that real voltage and current sources have limits to the voltage/currents they can provide. A voltage source "prefer" open circuits (no connection between the poles) and current sources "prefer" closed circuits (short cuts).

## Related Topics

### • Electrical

Electrical engineering with units, amps and electrical wiring. Wire gauges, electrical formulas, motors and more.

## Related Documents

### Current Divider - Online Calculator

An electric current divider outputs a current that is a fraction of the input current.

### Electric Circuit Diagram - Drawing Template

Online shareable electric circuit diagram.

### Electric Circuits Voltage Drop

Ohm's law and voltage drop in electric circuits.

### Electrical Conductivity - Elements and other Materials

Electric conductance is the ability of a element to conduct an electric current.

### Electrical Formulas

Commonly used electrical formulas like Ohms Law and more.

### Electrical Parallel Circuits

Resistance, voltage and current in electrical parallel circuits.

### Electrical Series Circuits

Voltage and current in electrical series circuits.

### Kirchhoff's Voltage and Current Laws

Kirchhoff's current and voltage laws.

### Voltage Dividers - Online Calculator

Output voltage potential divider.

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