SURFACE-MOUNT TECHNOLOGY PRINTED-CIRCUIT BOARDS
Wizardry designs and manufactures microprocessor-based products
which either surface-mount technology and/or through-hole technology.
This example microprocessor mainboard controls Wizardry's multichannel 200 amp Phase-Controller product.
- MULTI-LAYER CONSTUCTION
Each isolated power-supply is routed via inner power-planes,
to guarantee stable & power-distribution.
This is essential to suppress power-supply noise caused by power-switching circuits,
or by modern microprocessor chips which draw multi-amp nanosecond-risetime current spikes.
This board contains 2 isolated power-supplies, plus 2 power-supplies which share a common-ground.
- GENEROUS USE OF POWER-SUPPLY CAPACITORS
Stable, noise-free power-supplies are the key to making reliable microprocessor designs.
Infinite-life High-capacity ceramic capacitors are used whenever possible.
Long-lifetime electrolytic capacitors are chosen, when electrolytics are unavoidable.
- GENEROUS USE OF TEST POINTS
Extensive use of surface-mount test-points simplifies the test & maintenance process of surface-mount designs.
Legends for each test-point improve ease-of-use.
- MIXED SURFACE-MOUNT AND THROUGH-HOLE CONSTRUCTION
Surface-mount sockets for through-hole parts are used,
where those parts are more likely to require field- or factory-replacement.