| 摘要 |
<p>Set of modules for building didactic electronic circuits based on a ferromagnetic panel (10) that has a matrix (11) drawn on the surface thereof representing a network of contact points. On top of the panel (10) may be placed the diagram a (21) of the circuit to be built, then a transparent plastic sheet (30) and then magnets (40, 41) which are attached by the attraction of the panel (10) and which hold the plastic sheet (30) at the same time. To attach the magnets (41) horizontally, a perforated transparent plastic sheet (50) is laid down. On top of the magnets (41) are placed several modules (71, 72, 73, 75, 81, 85, 91, 92, 93, 95) based on a printed circuit with ferromagnetic plates welded on. If two or more modules coincide on a magnet (41), an electrical connection is made as the surface of the magnet is conductive. The plates are designed such that the modules retain a given balanced position when they are placed on a magnet (41).</p> |
