Schneiderware Power Supply

The Schneiderware Power Supply is an external power supply published by german magazine CPC Schneider International as part of their Schneiderware DIY series. The plain PCB, or the fully assembled board were also available via mail-order.

The power supply is needed only for Schneiderware projects that do require special voltages, or for projects that do overload the CPC's own +5V supply (which may happen when connection too many expansion boards, for example). The supply outputs the following voltages:

• +5V DC - needed only when the CPC's built-in supply gets overloaded
• +12V DC - needed for the Schneiderware V/24 interface and the Schneiderware Analog Converter
• -12V DC - needed for the Schneiderware V/24 interface only
• +24V DC - not used (was intended for the EPROM Burner, but when the EPROM burner was released, it contained a 5V-to-25V converter, and thus didn't need the +24V anymore)

Caution - The supply uses the same type of 2x32 pin connector as the other Schneiderware boards, however, the supply is NOT intended to be plugged into the ECB Bus sockets, instead, it should be wired to the 7 soldering points on the Schneiderware Basisplatine.

• Schneiderware #4 Netzteil (Power Supply) (9/1986 pages 78-83, corrections on 10/1986 page 85, 5/1987 page 12)

Pictures

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  Power Supply Schematic

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  Supply/Netzteil (only +12V/-12V components installed)

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  Supply/Netzteil (solder side)