Electrical Engineering
Use System Modeler to construct and study electrical circuits, power electronics, and electrical machinery. Combine electrical and mechanical components to build complete system models. Perform analysis tasks and measure performance.
Full-Wave Bridge Rectifier
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The Model

Understanding the Circuit
To better understand the flow of current through the circuit, it can be visualized using dynamic diagrams in SystemModeler together with Mathematica.
Dynamic Diagrams
Animate the diagram based on simulation results.
Explore and Compare
SystemModeler can be used to easily compare different design decisions. Here is a comparison of the usage of two different types of forward-biased diodes in the circuit.

Design Decisions
Use SystemModeler to try different scenarios and make design decisions based on your needs.
Several different static equations exist to describe the output ripple from the rectifier. As a usual rectifier contains a dynamical component, a capacitor, these equations can only be approximations. Using SystemModeler to simulate the system results in a more accurate value of the output ripple. The simulation value can also be compared to the approximated value using Mathematica.


A static approximation between circuit parameters and ripple amplitude is the following:
, where
is the load resistance,
is the capacitor filter capacitance, and
is the source voltage frequency. Using the same parameters as the simulation above, the static approximation gives a voltage ripple of 1.45 V. The static approximation is only valid when the ripple is sufficiently small.
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