Transistorgrab

For the hobbyist there are not many powerful and free schematic and layout software. For Linux and Mac OS X there is the software package gEDA. With that you can draw schematics and create layouts. This article shows how you can create even hierachical designs with that software.

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Here is some interesting information on the topic lead free soldering. This information originates from a specialist on soldering of a big international distributor.

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Diodes are often used to realize inverse-polarity protection. For circuits with high input currents the forward voltage of the diode can lead to a very high power dissipation of the inverse-polarity protection.

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LTSpice knows different signal sources. Unfurtunately there is no modulated PWM. This article shows how to generate a voltage controlled PWM.

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One who needs to simulate a circuit will sooner or later stumple across SwitcherCAD. This article shows how to generate a saw tooth or triangular voltage.

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